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rpcs3/wxWidgets/src/richtext/richtextctrl.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: src/richtext/richeditctrl.cpp
// Purpose: A rich edit control
// Author: Julian Smart
// Modified by:
// Created: 2005-09-30
// RCS-ID: $Id: richtextctrl.cpp 67025 2011-02-25 17:28:13Z JS $
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_RICHTEXT
#include "wx/richtext/richtextctrl.h"
#include "wx/richtext/richtextstyles.h"
#ifndef WX_PRECOMP
#include "wx/wx.h"
#include "wx/settings.h"
#endif
#include "wx/timer.h"
#include "wx/textfile.h"
#include "wx/ffile.h"
#include "wx/filename.h"
#include "wx/dcbuffer.h"
#include "wx/arrimpl.cpp"
#include "wx/fontenum.h"
#include "wx/accel.h"
// DLL options compatibility check:
#include "wx/app.h"
// Refresh the area affected by a selection change
bool wxRichTextCtrlRefreshForSelectionChange(wxRichTextCtrl& ctrl, const wxRichTextRange& oldSelection, const wxRichTextRange& newSelection);
WX_CHECK_BUILD_OPTIONS("wxRichTextCtrl")
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_LEFT_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_MIDDLE_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_RIGHT_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_LEFT_DCLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_RETURN)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_CHARACTER)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_DELETE)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_STYLESHEET_REPLACING)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_STYLESHEET_REPLACED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_STYLESHEET_CHANGING)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_STYLESHEET_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_CONTENT_INSERTED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_CONTENT_DELETED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_STYLE_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_SELECTION_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_BUFFER_RESET)
#if wxRICHTEXT_USE_OWN_CARET
class wxRichTextCaret;
class wxRichTextCaretTimer: public wxTimer
{
public:
wxRichTextCaretTimer(wxRichTextCaret* caret)
{
m_caret = caret;
}
virtual void Notify();
wxRichTextCaret* m_caret;
};
/*!
* wxRichTextCaret
*
* This implements a non-flashing cursor in case there
* are platform-specific problems with the generic caret.
* wxRICHTEXT_USE_OWN_CARET is set in richtextbuffer.h.
*/
class wxRichTextCaret: public wxCaret
{
public:
// ctors
// -----
// default - use Create()
wxRichTextCaret(): m_timer(this) { Init(); }
// creates a block caret associated with the given window
wxRichTextCaret(wxRichTextCtrl *window, int width, int height)
: wxCaret(window, width, height), m_timer(this) { Init(); m_richTextCtrl = window; }
wxRichTextCaret(wxRichTextCtrl *window, const wxSize& size)
: wxCaret(window, size), m_timer(this) { Init(); m_richTextCtrl = window; }
virtual ~wxRichTextCaret();
// implementation
// --------------
// called by wxWindow (not using the event tables)
virtual void OnSetFocus();
virtual void OnKillFocus();
// draw the caret on the given DC
void DoDraw(wxDC *dc);
// get the visible count
int GetVisibleCount() const { return m_countVisible; }
// delay repositioning
bool GetNeedsUpdate() const { return m_needsUpdate; }
void SetNeedsUpdate(bool needsUpdate = true ) { m_needsUpdate = needsUpdate; }
void Notify();
protected:
virtual void DoShow();
virtual void DoHide();
virtual void DoMove();
virtual void DoSize();
// refresh the caret
void Refresh();
private:
void Init();
int m_xOld,
m_yOld;
bool m_hasFocus; // true => our window has focus
bool m_needsUpdate; // must be repositioned
bool m_flashOn;
wxRichTextCaretTimer m_timer;
wxRichTextCtrl* m_richTextCtrl;
};
#endif
IMPLEMENT_CLASS( wxRichTextCtrl, wxTextCtrlBase )
IMPLEMENT_CLASS( wxRichTextEvent, wxNotifyEvent )
BEGIN_EVENT_TABLE( wxRichTextCtrl, wxTextCtrlBase )
EVT_PAINT(wxRichTextCtrl::OnPaint)
EVT_ERASE_BACKGROUND(wxRichTextCtrl::OnEraseBackground)
EVT_IDLE(wxRichTextCtrl::OnIdle)
EVT_SCROLLWIN(wxRichTextCtrl::OnScroll)
EVT_LEFT_DOWN(wxRichTextCtrl::OnLeftClick)
EVT_MOTION(wxRichTextCtrl::OnMoveMouse)
EVT_LEFT_UP(wxRichTextCtrl::OnLeftUp)
EVT_RIGHT_DOWN(wxRichTextCtrl::OnRightClick)
EVT_MIDDLE_DOWN(wxRichTextCtrl::OnMiddleClick)
EVT_LEFT_DCLICK(wxRichTextCtrl::OnLeftDClick)
EVT_CHAR(wxRichTextCtrl::OnChar)
EVT_KEY_DOWN(wxRichTextCtrl::OnChar)
EVT_SIZE(wxRichTextCtrl::OnSize)
EVT_SET_FOCUS(wxRichTextCtrl::OnSetFocus)
EVT_KILL_FOCUS(wxRichTextCtrl::OnKillFocus)
EVT_MOUSE_CAPTURE_LOST(wxRichTextCtrl::OnCaptureLost)
EVT_CONTEXT_MENU(wxRichTextCtrl::OnContextMenu)
EVT_MENU(wxID_UNDO, wxRichTextCtrl::OnUndo)
EVT_UPDATE_UI(wxID_UNDO, wxRichTextCtrl::OnUpdateUndo)
EVT_MENU(wxID_REDO, wxRichTextCtrl::OnRedo)
EVT_UPDATE_UI(wxID_REDO, wxRichTextCtrl::OnUpdateRedo)
EVT_MENU(wxID_COPY, wxRichTextCtrl::OnCopy)
EVT_UPDATE_UI(wxID_COPY, wxRichTextCtrl::OnUpdateCopy)
EVT_MENU(wxID_PASTE, wxRichTextCtrl::OnPaste)
EVT_UPDATE_UI(wxID_PASTE, wxRichTextCtrl::OnUpdatePaste)
EVT_MENU(wxID_CUT, wxRichTextCtrl::OnCut)
EVT_UPDATE_UI(wxID_CUT, wxRichTextCtrl::OnUpdateCut)
EVT_MENU(wxID_CLEAR, wxRichTextCtrl::OnClear)
EVT_UPDATE_UI(wxID_CLEAR, wxRichTextCtrl::OnUpdateClear)
EVT_MENU(wxID_SELECTALL, wxRichTextCtrl::OnSelectAll)
EVT_UPDATE_UI(wxID_SELECTALL, wxRichTextCtrl::OnUpdateSelectAll)
END_EVENT_TABLE()
/*!
* wxRichTextCtrl
*/
wxArrayString wxRichTextCtrl::sm_availableFontNames;
wxRichTextCtrl::wxRichTextCtrl()
: wxScrollHelper(this)
{
Init();
}
wxRichTextCtrl::wxRichTextCtrl(wxWindow* parent,
wxWindowID id,
const wxString& value,
const wxPoint& pos,
const wxSize& size,
long style,
const wxValidator& validator,
const wxString& name)
: wxScrollHelper(this)
{
Init();
Create(parent, id, value, pos, size, style, validator, name);
}
/// Creation
bool wxRichTextCtrl::Create( wxWindow* parent, wxWindowID id, const wxString& value, const wxPoint& pos, const wxSize& size, long style,
const wxValidator& validator, const wxString& name)
{
if ((style & wxBORDER_MASK) == wxBORDER_DEFAULT)
#ifdef __WXMSW__
style |= GetThemedBorderStyle();
#else
style |= wxBORDER_SUNKEN;
#endif
if (!wxTextCtrlBase::Create(parent, id, pos, size,
style|wxFULL_REPAINT_ON_RESIZE,
validator, name))
return false;
if (!GetFont().Ok())
{
SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
}
// No physical scrolling, so we can preserve margins
EnableScrolling(false, false);
if (style & wxTE_READONLY)
SetEditable(false);
// The base attributes must all have default values
wxTextAttrEx attributes;
attributes.SetFont(GetFont());
attributes.SetTextColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
attributes.SetAlignment(wxTEXT_ALIGNMENT_LEFT);
attributes.SetLineSpacing(10);
attributes.SetParagraphSpacingAfter(10);
attributes.SetParagraphSpacingBefore(0);
SetBasicStyle(attributes);
// The default attributes will be merged with base attributes, so
// can be empty to begin with
wxTextAttrEx defaultAttributes;
SetDefaultStyle(defaultAttributes);
SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
SetBackgroundStyle(wxBG_STYLE_CUSTOM);
GetBuffer().Reset();
GetBuffer().SetRichTextCtrl(this);
#if wxRICHTEXT_USE_OWN_CARET
SetCaret(new wxRichTextCaret(this, wxRICHTEXT_DEFAULT_CARET_WIDTH, 16));
#else
SetCaret(new wxCaret(this, wxRICHTEXT_DEFAULT_CARET_WIDTH, 16));
#endif
// Tell the sizers to use the given or best size
SetInitialSize(size);
#if wxRICHTEXT_BUFFERED_PAINTING
// Create a buffer
RecreateBuffer(size);
#endif
m_textCursor = wxCursor(wxCURSOR_IBEAM);
m_urlCursor = wxCursor(wxCURSOR_HAND);
SetCursor(m_textCursor);
if (!value.IsEmpty())
SetValue(value);
GetBuffer().AddEventHandler(this);
// Accelerators
wxAcceleratorEntry entries[6];
entries[0].Set(wxACCEL_CMD, (int) 'C', wxID_COPY);
entries[1].Set(wxACCEL_CMD, (int) 'X', wxID_CUT);
entries[2].Set(wxACCEL_CMD, (int) 'V', wxID_PASTE);
entries[3].Set(wxACCEL_CMD, (int) 'A', wxID_SELECTALL);
entries[4].Set(wxACCEL_CMD, (int) 'Z', wxID_UNDO);
entries[5].Set(wxACCEL_CMD, (int) 'Y', wxID_REDO);
wxAcceleratorTable accel(6, entries);
SetAcceleratorTable(accel);
m_contextMenu = new wxMenu;
m_contextMenu->Append(wxID_UNDO, _("&Undo"));
m_contextMenu->Append(wxID_REDO, _("&Redo"));
m_contextMenu->AppendSeparator();
m_contextMenu->Append(wxID_CUT, _("Cu&t"));
m_contextMenu->Append(wxID_COPY, _("&Copy"));
m_contextMenu->Append(wxID_PASTE, _("&Paste"));
m_contextMenu->Append(wxID_CLEAR, _("&Delete"));
m_contextMenu->AppendSeparator();
m_contextMenu->Append(wxID_SELECTALL, _("Select &All"));
return true;
}
wxRichTextCtrl::~wxRichTextCtrl()
{
GetBuffer().RemoveEventHandler(this);
delete m_contextMenu;
}
/// Member initialisation
void wxRichTextCtrl::Init()
{
m_freezeCount = 0;
m_contextMenu = NULL;
m_caret = NULL;
m_caretPosition = -1;
m_selectionRange.SetRange(-2, -2);
m_selectionAnchor = -2;
m_editable = true;
m_caretAtLineStart = false;
m_dragging = false;
m_fullLayoutRequired = false;
m_fullLayoutTime = 0;
m_fullLayoutSavedPosition = 0;
m_delayedLayoutThreshold = wxRICHTEXT_DEFAULT_DELAYED_LAYOUT_THRESHOLD;
m_caretPositionForDefaultStyle = -2;
}
/// Call Freeze to prevent refresh
void wxRichTextCtrl::Freeze()
{
m_freezeCount ++;
}
/// Call Thaw to refresh
void wxRichTextCtrl::Thaw()
{
m_freezeCount --;
if (m_freezeCount == 0)
{
if (GetBuffer().GetDirty())
LayoutContent();
else
SetupScrollbars();
Refresh(false);
}
}
/// Clear all text
void wxRichTextCtrl::Clear()
{
m_buffer.ResetAndClearCommands();
m_buffer.SetDirty(true);
m_caretPosition = -1;
m_caretPositionForDefaultStyle = -2;
m_caretAtLineStart = false;
m_selectionRange.SetRange(-2, -2);
Scroll(0,0);
if (m_freezeCount == 0)
{
LayoutContent();
Refresh(false);
}
SendTextUpdatedEvent();
}
/// Painting
void wxRichTextCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
{
#if !wxRICHTEXT_USE_OWN_CARET
if (GetCaret() && !IsFrozen())
GetCaret()->Hide();
#endif
{
#if wxRICHTEXT_BUFFERED_PAINTING
wxBufferedPaintDC dc(this, m_bufferBitmap);
#else
wxPaintDC dc(this);
#endif
PrepareDC(dc);
if (IsFrozen())
{
return;
}
dc.SetFont(GetFont());
// Paint the background
PaintBackground(dc);
// wxRect drawingArea(GetLogicalPoint(wxPoint(0, 0)), GetClientSize());
wxRect drawingArea(GetUpdateRegion().GetBox());
drawingArea.SetPosition(GetLogicalPoint(drawingArea.GetPosition()));
wxRect availableSpace(GetClientSize());
if (GetBuffer().GetDirty())
{
GetBuffer().Layout(dc, availableSpace, wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT);
GetBuffer().SetDirty(false);
SetupScrollbars();
}
wxRect clipRect(availableSpace);
clipRect.x += GetBuffer().GetLeftMargin();
clipRect.y += GetBuffer().GetTopMargin();
clipRect.width -= (GetBuffer().GetLeftMargin() + GetBuffer().GetRightMargin());
clipRect.height -= (GetBuffer().GetTopMargin() + GetBuffer().GetBottomMargin());
clipRect.SetPosition(GetLogicalPoint(clipRect.GetPosition()));
dc.SetClippingRegion(clipRect);
GetBuffer().Draw(dc, GetBuffer().GetRange(), GetInternalSelectionRange(), drawingArea, 0 /* descent */, 0 /* flags */);
dc.DestroyClippingRegion();
#if wxRICHTEXT_USE_OWN_CARET
if (GetCaret()->IsVisible())
{
((wxRichTextCaret*) GetCaret())->DoDraw(& dc);
}
#endif
}
#if !wxRICHTEXT_USE_OWN_CARET
if (GetCaret())
GetCaret()->Show();
PositionCaret();
#endif
}
// Empty implementation, to prevent flicker
void wxRichTextCtrl::OnEraseBackground(wxEraseEvent& WXUNUSED(event))
{
}
void wxRichTextCtrl::OnSetFocus(wxFocusEvent& WXUNUSED(event))
{
if (GetCaret())
{
#if !wxRICHTEXT_USE_OWN_CARET
PositionCaret();
#endif
GetCaret()->Show();
}
#if defined(__WXGTK__) && !wxRICHTEXT_USE_OWN_CARET
// Work around dropouts when control is focused
if (!IsFrozen())
{
Refresh(false);
}
#endif
}
void wxRichTextCtrl::OnKillFocus(wxFocusEvent& WXUNUSED(event))
{
if (GetCaret())
GetCaret()->Hide();
#if defined(__WXGTK__) && !wxRICHTEXT_USE_OWN_CARET
// Work around dropouts when control is focused
if (!IsFrozen())
{
Refresh(false);
}
#endif
}
void wxRichTextCtrl::OnCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
{
m_dragging = false;
}
/// Left-click
void wxRichTextCtrl::OnLeftClick(wxMouseEvent& event)
{
SetFocus();
wxClientDC dc(this);
PrepareDC(dc);
dc.SetFont(GetFont());
long position = 0;
int hit = GetBuffer().HitTest(dc, event.GetLogicalPosition(dc), position);
if (hit != wxRICHTEXT_HITTEST_NONE)
{
m_dragStart = event.GetLogicalPosition(dc);
m_dragging = true;
CaptureMouse();
bool caretAtLineStart = false;
if (hit & wxRICHTEXT_HITTEST_BEFORE)
{
// If we're at the start of a line (but not first in para)
// then we should keep the caret showing at the start of the line
// by showing the m_caretAtLineStart flag.
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(position);
wxRichTextLine* line = GetBuffer().GetLineAtPosition(position);
if (line && para && line->GetAbsoluteRange().GetStart() == position && para->GetRange().GetStart() != position)
caretAtLineStart = true;
position --;
}
long oldCaretPos = m_caretPosition;
MoveCaret(position, caretAtLineStart);
SetDefaultStyleToCursorStyle();
if (event.ShiftDown())
{
if (m_selectionRange.GetStart() == -2)
ExtendSelection(oldCaretPos, m_caretPosition, wxRICHTEXT_SHIFT_DOWN);
else
ExtendSelection(m_caretPosition, m_caretPosition, wxRICHTEXT_SHIFT_DOWN);
}
else
SelectNone();
}
event.Skip();
}
/// Left-up
void wxRichTextCtrl::OnLeftUp(wxMouseEvent& event)
{
if (m_dragging)
{
m_dragging = false;
if (GetCapture() == this)
ReleaseMouse();
// See if we clicked on a URL
wxClientDC dc(this);
PrepareDC(dc);
dc.SetFont(GetFont());
long position = 0;
wxPoint logicalPt = event.GetLogicalPosition(dc);
int hit = GetBuffer().HitTest(dc, logicalPt, position);
if ((hit != wxRICHTEXT_HITTEST_NONE) && !(hit & wxRICHTEXT_HITTEST_OUTSIDE))
{
wxTextAttrEx attr;
if (GetStyle(position, attr))
{
if (attr.HasFlag(wxTEXT_ATTR_URL))
{
wxString urlTarget = attr.GetURL();
if (!urlTarget.IsEmpty())
{
wxMouseEvent mouseEvent(event);
long startPos = 0, endPos = 0;
wxRichTextObject* obj = GetBuffer().GetLeafObjectAtPosition(position);
if (obj)
{
startPos = obj->GetRange().GetStart();
endPos = obj->GetRange().GetEnd();
}
wxTextUrlEvent urlEvent(GetId(), mouseEvent, startPos, endPos);
InitCommandEvent(urlEvent);
urlEvent.SetString(urlTarget);
GetEventHandler()->ProcessEvent(urlEvent);
}
}
}
}
}
}
/// Left-click
void wxRichTextCtrl::OnMoveMouse(wxMouseEvent& event)
{
wxClientDC dc(this);
PrepareDC(dc);
dc.SetFont(GetFont());
long position = 0;
wxPoint logicalPt = event.GetLogicalPosition(dc);
int hit = GetBuffer().HitTest(dc, logicalPt, position);
// See if we need to change the cursor
{
if (hit != wxRICHTEXT_HITTEST_NONE && !(hit & wxRICHTEXT_HITTEST_OUTSIDE))
{
wxTextAttrEx attr;
if (GetStyle(position, attr))
{
if (attr.HasFlag(wxTEXT_ATTR_URL))
{
SetCursor(m_urlCursor);
}
else if (!attr.HasFlag(wxTEXT_ATTR_URL))
{
SetCursor(m_textCursor);
}
}
}
else
SetCursor(m_textCursor);
}
if (!event.Dragging())
{
event.Skip();
return;
}
if (m_dragging && hit != wxRICHTEXT_HITTEST_NONE)
{
// TODO: test closeness
bool caretAtLineStart = false;
if (hit & wxRICHTEXT_HITTEST_BEFORE)
{
// If we're at the start of a line (but not first in para)
// then we should keep the caret showing at the start of the line
// by showing the m_caretAtLineStart flag.
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(position);
wxRichTextLine* line = GetBuffer().GetLineAtPosition(position);
if (line && para && line->GetAbsoluteRange().GetStart() == position && para->GetRange().GetStart() != position)
caretAtLineStart = true;
position --;
}
if (m_caretPosition != position)
{
ExtendSelection(m_caretPosition, position, wxRICHTEXT_SHIFT_DOWN);
MoveCaret(position, caretAtLineStart);
SetDefaultStyleToCursorStyle();
}
}
}
/// Right-click
void wxRichTextCtrl::OnRightClick(wxMouseEvent& event)
{
SetFocus();
event.Skip();
}
/// Left-double-click
void wxRichTextCtrl::OnLeftDClick(wxMouseEvent& event)
{
SelectWord(GetCaretPosition()+1);
event.Skip();
}
/// Middle-click
void wxRichTextCtrl::OnMiddleClick(wxMouseEvent& event)
{
event.Skip();
}
/// Key press
void wxRichTextCtrl::OnChar(wxKeyEvent& event)
{
int flags = 0;
if (event.CmdDown())
flags |= wxRICHTEXT_CTRL_DOWN;
if (event.ShiftDown())
flags |= wxRICHTEXT_SHIFT_DOWN;
if (event.AltDown())
flags |= wxRICHTEXT_ALT_DOWN;
if (event.GetEventType() == wxEVT_KEY_DOWN)
{
if (event.GetKeyCode() == WXK_LEFT ||
event.GetKeyCode() == WXK_RIGHT ||
event.GetKeyCode() == WXK_UP ||
event.GetKeyCode() == WXK_DOWN ||
event.GetKeyCode() == WXK_HOME ||
event.GetKeyCode() == WXK_PAGEUP ||
event.GetKeyCode() == WXK_PAGEDOWN ||
event.GetKeyCode() == WXK_END ||
event.GetKeyCode() == WXK_NUMPAD_LEFT ||
event.GetKeyCode() == WXK_NUMPAD_RIGHT ||
event.GetKeyCode() == WXK_NUMPAD_UP ||
event.GetKeyCode() == WXK_NUMPAD_DOWN ||
event.GetKeyCode() == WXK_NUMPAD_HOME ||
event.GetKeyCode() == WXK_NUMPAD_PAGEUP ||
event.GetKeyCode() == WXK_NUMPAD_PAGEDOWN ||
event.GetKeyCode() == WXK_NUMPAD_END)
{
KeyboardNavigate(event.GetKeyCode(), flags);
return;
}
long keycode = event.GetKeyCode();
switch ( keycode )
{
case WXK_ESCAPE:
case WXK_START:
case WXK_LBUTTON:
case WXK_RBUTTON:
case WXK_CANCEL:
case WXK_MBUTTON:
case WXK_CLEAR:
case WXK_SHIFT:
case WXK_ALT:
case WXK_CONTROL:
case WXK_MENU:
case WXK_PAUSE:
case WXK_CAPITAL:
case WXK_END:
case WXK_HOME:
case WXK_LEFT:
case WXK_UP:
case WXK_RIGHT:
case WXK_DOWN:
case WXK_SELECT:
case WXK_PRINT:
case WXK_EXECUTE:
case WXK_SNAPSHOT:
case WXK_INSERT:
case WXK_HELP:
case WXK_F1:
case WXK_F2:
case WXK_F3:
case WXK_F4:
case WXK_F5:
case WXK_F6:
case WXK_F7:
case WXK_F8:
case WXK_F9:
case WXK_F10:
case WXK_F11:
case WXK_F12:
case WXK_F13:
case WXK_F14:
case WXK_F15:
case WXK_F16:
case WXK_F17:
case WXK_F18:
case WXK_F19:
case WXK_F20:
case WXK_F21:
case WXK_F22:
case WXK_F23:
case WXK_F24:
case WXK_NUMLOCK:
case WXK_SCROLL:
case WXK_PAGEUP:
case WXK_PAGEDOWN:
case WXK_NUMPAD_F1:
case WXK_NUMPAD_F2:
case WXK_NUMPAD_F3:
case WXK_NUMPAD_F4:
case WXK_NUMPAD_HOME:
case WXK_NUMPAD_LEFT:
case WXK_NUMPAD_UP:
case WXK_NUMPAD_RIGHT:
case WXK_NUMPAD_DOWN:
case WXK_NUMPAD_PAGEUP:
case WXK_NUMPAD_PAGEDOWN:
case WXK_NUMPAD_END:
case WXK_NUMPAD_BEGIN:
case WXK_NUMPAD_INSERT:
case WXK_WINDOWS_LEFT:
{
return;
}
default:
{
}
}
// Must process this before translation, otherwise it's translated into a WXK_DELETE event.
if (event.CmdDown() && event.GetKeyCode() == WXK_BACK)
{
BeginBatchUndo(_("Delete Text"));
long newPos = m_caretPosition;
bool processed = DeleteSelectedContent(& newPos);
// Submit range in character positions, which are greater than caret positions,
// so subtract 1 for deleted character and add 1 for conversion to character position.
if (newPos > -1)
{
if (event.CmdDown())
{
long pos = wxRichTextCtrl::FindNextWordPosition(-1);
if (pos < newPos)
{
GetBuffer().DeleteRangeWithUndo(wxRichTextRange(pos+1, newPos), this);
processed = true;
}
}
if (!processed)
GetBuffer().DeleteRangeWithUndo(wxRichTextRange(newPos, newPos), this);
}
EndBatchUndo();
if (GetLastPosition() == -1)
{
GetBuffer().Reset();
m_caretPosition = -1;
PositionCaret();
SetDefaultStyleToCursorStyle();
}
ScrollIntoView(m_caretPosition, WXK_LEFT);
wxRichTextEvent cmdEvent(
wxEVT_COMMAND_RICHTEXT_DELETE,
GetId());
cmdEvent.SetEventObject(this);
cmdEvent.SetFlags(flags);
cmdEvent.SetPosition(m_caretPosition+1);
GetEventHandler()->ProcessEvent(cmdEvent);
Update();
}
else
event.Skip();
return;
}
// all the other keys modify the controls contents which shouldn't be
// possible if we're read-only
if ( !IsEditable() )
{
event.Skip();
return;
}
if (event.GetKeyCode() == WXK_RETURN)
{
BeginBatchUndo(_("Insert Text"));
long newPos = m_caretPosition;
DeleteSelectedContent(& newPos);
if (event.ShiftDown())
{
wxString text;
text = wxRichTextLineBreakChar;
GetBuffer().InsertTextWithUndo(newPos+1, text, this);
m_caretAtLineStart = true;
PositionCaret();
}
else
GetBuffer().InsertNewlineWithUndo(newPos+1, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE|wxRICHTEXT_INSERT_INTERACTIVE);
EndBatchUndo();
SetDefaultStyleToCursorStyle();
ScrollIntoView(m_caretPosition, WXK_RIGHT);
wxRichTextEvent cmdEvent(
wxEVT_COMMAND_RICHTEXT_RETURN,
GetId());
cmdEvent.SetEventObject(this);
cmdEvent.SetFlags(flags);
cmdEvent.SetPosition(newPos+1);
if (!GetEventHandler()->ProcessEvent(cmdEvent))
{
// Generate conventional event
wxCommandEvent textEvent(wxEVT_COMMAND_TEXT_ENTER, GetId());
InitCommandEvent(textEvent);
GetEventHandler()->ProcessEvent(textEvent);
}
Update();
}
else if (event.GetKeyCode() == WXK_BACK)
{
BeginBatchUndo(_("Delete Text"));
long newPos = m_caretPosition;
bool processed = DeleteSelectedContent(& newPos);
// Submit range in character positions, which are greater than caret positions,
// so subtract 1 for deleted character and add 1 for conversion to character position.
if (newPos > -1)
{
if (event.CmdDown())
{
long pos = wxRichTextCtrl::FindNextWordPosition(-1);
if (pos < newPos)
{
GetBuffer().DeleteRangeWithUndo(wxRichTextRange(pos+1, newPos), this);
processed = true;
}
}
if (!processed)
GetBuffer().DeleteRangeWithUndo(wxRichTextRange(newPos, newPos), this);
}
EndBatchUndo();
if (GetLastPosition() == -1)
{
GetBuffer().Reset();
m_caretPosition = -1;
PositionCaret();
SetDefaultStyleToCursorStyle();
}
ScrollIntoView(m_caretPosition, WXK_LEFT);
wxRichTextEvent cmdEvent(
wxEVT_COMMAND_RICHTEXT_DELETE,
GetId());
cmdEvent.SetEventObject(this);
cmdEvent.SetFlags(flags);
cmdEvent.SetPosition(m_caretPosition+1);
GetEventHandler()->ProcessEvent(cmdEvent);
Update();
}
else if (event.GetKeyCode() == WXK_DELETE)
{
BeginBatchUndo(_("Delete Text"));
long newPos = m_caretPosition;
bool processed = DeleteSelectedContent(& newPos);
// Submit range in character positions, which are greater than caret positions,
if (newPos < GetBuffer().GetRange().GetEnd()+1)
{
if (event.CmdDown())
{
long pos = wxRichTextCtrl::FindNextWordPosition(1);
if (pos != -1 && (pos > newPos))
{
GetBuffer().DeleteRangeWithUndo(wxRichTextRange(newPos+1, pos), this);
processed = true;
}
}
if (!processed && newPos < (GetLastPosition()-1))
GetBuffer().DeleteRangeWithUndo(wxRichTextRange(newPos+1, newPos+1), this);
}
EndBatchUndo();
if (GetLastPosition() == -1)
{
GetBuffer().Reset();
m_caretPosition = -1;
PositionCaret();
SetDefaultStyleToCursorStyle();
}
wxRichTextEvent cmdEvent(
wxEVT_COMMAND_RICHTEXT_DELETE,
GetId());
cmdEvent.SetEventObject(this);
cmdEvent.SetFlags(flags);
cmdEvent.SetPosition(m_caretPosition+1);
GetEventHandler()->ProcessEvent(cmdEvent);
Update();
}
else
{
long keycode = event.GetKeyCode();
switch ( keycode )
{
case WXK_ESCAPE:
{
event.Skip();
return;
}
default:
{
#ifdef __WXMAC__
if (event.CmdDown())
#else
// Fixes AltGr+key with European input languages on Windows
if ((event.CmdDown() && !event.AltDown()) || (event.AltDown() && !event.CmdDown()))
#endif
{
event.Skip();
return;
}
wxRichTextEvent cmdEvent(
wxEVT_COMMAND_RICHTEXT_CHARACTER,
GetId());
cmdEvent.SetEventObject(this);
cmdEvent.SetFlags(flags);
#if wxUSE_UNICODE
cmdEvent.SetCharacter(event.GetUnicodeKey());
#else
cmdEvent.SetCharacter((wxChar) keycode);
#endif
cmdEvent.SetPosition(m_caretPosition+1);
if (keycode == wxT('\t'))
{
// See if we need to promote or demote the selection or paragraph at the cursor
// position, instead of inserting a tab.
long pos = GetAdjustedCaretPosition(GetCaretPosition());
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(pos);
if (para && para->GetRange().GetStart() == pos && para->GetAttributes().HasListStyleName())
{
wxRichTextRange range;
if (HasSelection())
range = GetSelectionRange();
else
range = para->GetRange().FromInternal();
int promoteBy = event.ShiftDown() ? 1 : -1;
PromoteList(promoteBy, range, NULL);
GetEventHandler()->ProcessEvent(cmdEvent);
return;
}
}
BeginBatchUndo(_("Insert Text"));
long newPos = m_caretPosition;
DeleteSelectedContent(& newPos);
#if wxUSE_UNICODE
wxString str = event.GetUnicodeKey();
#else
wxString str = (wxChar) event.GetKeyCode();
#endif
GetBuffer().InsertTextWithUndo(newPos+1, str, this, 0);
EndBatchUndo();
SetDefaultStyleToCursorStyle();
ScrollIntoView(m_caretPosition, WXK_RIGHT);
GetEventHandler()->ProcessEvent(cmdEvent);
Update();
}
}
}
}
/// Delete content if there is a selection, e.g. when pressing a key.
bool wxRichTextCtrl::DeleteSelectedContent(long* newPos)
{
if (HasSelection())
{
long pos = m_selectionRange.GetStart();
wxRichTextRange range = m_selectionRange;
// SelectAll causes more to be selected than doing it interactively,
// and causes a new paragraph to be inserted. So for multiline buffers,
// don't delete the final position.
if (range.GetEnd() == GetLastPosition() && GetNumberOfLines() > 0)
range.SetEnd(range.GetEnd()-1);
GetBuffer().DeleteRangeWithUndo(range, this);
m_selectionRange.SetRange(-2, -2);
if (newPos)
*newPos = pos-1;
return true;
}
else
return false;
}
/// Keyboard navigation
/*
Left: left one character
Right: right one character
Up: up one line
Down: down one line
Ctrl-Left: left one word
Ctrl-Right: right one word
Ctrl-Up: previous paragraph start
Ctrl-Down: next start of paragraph
Home: start of line
End: end of line
Ctrl-Home: start of document
Ctrl-End: end of document
Page-Up: Up a screen
Page-Down: Down a screen
Maybe:
Ctrl-Alt-PgUp: Start of window
Ctrl-Alt-PgDn: End of window
F8: Start selection mode
Esc: End selection mode
Adding Shift does the above but starts/extends selection.
*/
bool wxRichTextCtrl::KeyboardNavigate(int keyCode, int flags)
{
bool success = false;
if (keyCode == WXK_RIGHT || keyCode == WXK_NUMPAD_RIGHT)
{
if (flags & wxRICHTEXT_CTRL_DOWN)
success = WordRight(1, flags);
else
success = MoveRight(1, flags);
}
else if (keyCode == WXK_LEFT || keyCode == WXK_NUMPAD_LEFT)
{
if (flags & wxRICHTEXT_CTRL_DOWN)
success = WordLeft(1, flags);
else
success = MoveLeft(1, flags);
}
else if (keyCode == WXK_UP || keyCode == WXK_NUMPAD_UP)
{
if (flags & wxRICHTEXT_CTRL_DOWN)
success = MoveToParagraphStart(flags);
else
success = MoveUp(1, flags);
}
else if (keyCode == WXK_DOWN || keyCode == WXK_NUMPAD_DOWN)
{
if (flags & wxRICHTEXT_CTRL_DOWN)
success = MoveToParagraphEnd(flags);
else
success = MoveDown(1, flags);
}
else if (keyCode == WXK_PAGEUP || keyCode == WXK_NUMPAD_PAGEUP)
{
success = PageUp(1, flags);
}
else if (keyCode == WXK_PAGEDOWN || keyCode == WXK_NUMPAD_PAGEDOWN)
{
success = PageDown(1, flags);
}
else if (keyCode == WXK_HOME || keyCode == WXK_NUMPAD_HOME)
{
if (flags & wxRICHTEXT_CTRL_DOWN)
success = MoveHome(flags);
else
success = MoveToLineStart(flags);
}
else if (keyCode == WXK_END || keyCode == WXK_NUMPAD_END)
{
if (flags & wxRICHTEXT_CTRL_DOWN)
success = MoveEnd(flags);
else
success = MoveToLineEnd(flags);
}
if (success)
{
ScrollIntoView(m_caretPosition, keyCode);
SetDefaultStyleToCursorStyle();
}
return success;
}
/// Extend the selection. Selections are in caret positions.
bool wxRichTextCtrl::ExtendSelection(long oldPos, long newPos, int flags)
{
if (flags & wxRICHTEXT_SHIFT_DOWN)
{
if (oldPos == newPos)
return false;
wxRichTextRange oldSelection = m_selectionRange;
// If not currently selecting, start selecting
if (m_selectionRange.GetStart() == -2)
{
m_selectionAnchor = oldPos;
if (oldPos > newPos)
m_selectionRange.SetRange(newPos+1, oldPos);
else
m_selectionRange.SetRange(oldPos+1, newPos);
}
else
{
// Always ensure that the selection range start is greater than
// the end.
if (newPos > m_selectionAnchor)
m_selectionRange.SetRange(m_selectionAnchor+1, newPos);
else if (newPos == m_selectionAnchor)
m_selectionRange = wxRichTextRange(-2, -2);
else
m_selectionRange.SetRange(newPos+1, m_selectionAnchor);
}
wxRichTextCtrlRefreshForSelectionChange(*this, oldSelection, m_selectionRange);
if (m_selectionRange.GetStart() > m_selectionRange.GetEnd())
{
wxLogDebug(wxT("Strange selection range"));
}
return true;
}
else
return false;
}
/// Scroll into view, returning true if we scrolled.
/// This takes a _caret_ position.
bool wxRichTextCtrl::ScrollIntoView(long position, int keyCode)
{
wxRichTextLine* line = GetVisibleLineForCaretPosition(position);
if (!line)
return false;
int ppuX, ppuY;
GetScrollPixelsPerUnit(& ppuX, & ppuY);
int startXUnits, startYUnits;
GetViewStart(& startXUnits, & startYUnits);
int startY = startYUnits * ppuY;
int sx = 0, sy = 0;
GetVirtualSize(& sx, & sy);
int sxUnits = 0;
int syUnits = 0;
if (ppuY != 0)
syUnits = sy/ppuY;
wxRect rect = line->GetRect();
bool scrolled = false;
wxSize clientSize = GetClientSize();
clientSize.y -= GetBuffer().GetBottomMargin();
if (GetWindowStyle() & wxRE_CENTRE_CARET)
{
int y = rect.y - GetClientSize().y/2;
int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
if (y >= 0 && (y + clientSize.y) < GetBuffer().GetCachedSize().y)
{
if (startYUnits != yUnits)
{
SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
scrolled = true;
}
#if !wxRICHTEXT_USE_OWN_CARET
if (scrolled)
#endif
PositionCaret();
return scrolled;
}
}
// Going down
if (keyCode == WXK_DOWN || keyCode == WXK_NUMPAD_DOWN ||
keyCode == WXK_RIGHT || keyCode == WXK_NUMPAD_RIGHT ||
keyCode == WXK_END || keyCode == WXK_NUMPAD_END ||
keyCode == WXK_PAGEDOWN || keyCode == WXK_NUMPAD_PAGEDOWN)
{
if ((rect.y + rect.height) > (clientSize.y + startY))
{
// Make it scroll so this item is at the bottom
// of the window
int y = rect.y - (clientSize.y - rect.height);
int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
// If we're still off the screen, scroll another line down
if ((rect.y + rect.height) > (clientSize.y + (yUnits*ppuY)))
yUnits ++;
if (startYUnits != yUnits)
{
SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
scrolled = true;
}
}
else if (rect.y < (startY + GetBuffer().GetTopMargin()))
{
// Make it scroll so this item is at the top
// of the window
int y = rect.y - GetBuffer().GetTopMargin();
int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
if (startYUnits != yUnits)
{
SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
scrolled = true;
}
}
}
// Going up
else if (keyCode == WXK_UP || keyCode == WXK_NUMPAD_UP ||
keyCode == WXK_LEFT || keyCode == WXK_NUMPAD_LEFT ||
keyCode == WXK_HOME || keyCode == WXK_NUMPAD_HOME ||
keyCode == WXK_PAGEUP || keyCode == WXK_NUMPAD_PAGEUP )
{
if (rect.y < (startY + GetBuffer().GetBottomMargin()))
{
// Make it scroll so this item is at the top
// of the window
int y = rect.y - GetBuffer().GetTopMargin();
int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
if (startYUnits != yUnits)
{
SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
scrolled = true;
}
}
else if ((rect.y + rect.height) > (clientSize.y + startY))
{
// Make it scroll so this item is at the bottom
// of the window
int y = rect.y - (clientSize.y - rect.height);
int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
// If we're still off the screen, scroll another line down
if ((rect.y + rect.height) > (clientSize.y + (yUnits*ppuY)))
yUnits ++;
if (startYUnits != yUnits)
{
SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
scrolled = true;
}
}
}
#if !wxRICHTEXT_USE_OWN_CARET
if (scrolled)
#endif
PositionCaret();
return scrolled;
}
/// Is the given position visible on the screen?
bool wxRichTextCtrl::IsPositionVisible(long pos) const
{
wxRichTextLine* line = GetVisibleLineForCaretPosition(pos-1);
if (!line)
return false;
int ppuX, ppuY;
GetScrollPixelsPerUnit(& ppuX, & ppuY);
int startX, startY;
GetViewStart(& startX, & startY);
startX = 0;
startY = startY * ppuY;
wxRect rect = line->GetRect();
wxSize clientSize = GetClientSize();
clientSize.y -= GetBuffer().GetBottomMargin();
return (rect.GetTop() >= (startY + GetBuffer().GetTopMargin())) && (rect.GetBottom() <= (startY + clientSize.y));
}
void wxRichTextCtrl::SetCaretPosition(long position, bool showAtLineStart)
{
m_caretPosition = position;
m_caretAtLineStart = showAtLineStart;
}
/// Move caret one visual step forward: this may mean setting a flag
/// and keeping the same position if we're going from the end of one line
/// to the start of the next, which may be the exact same caret position.
void wxRichTextCtrl::MoveCaretForward(long oldPosition)
{
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(oldPosition);
// Only do the check if we're not at the end of the paragraph (where things work OK
// anyway)
if (para && (oldPosition != para->GetRange().GetEnd() - 1))
{
wxRichTextLine* line = GetBuffer().GetLineAtPosition(oldPosition);
if (line)
{
wxRichTextRange lineRange = line->GetAbsoluteRange();
// We're at the end of a line. See whether we need to
// stay at the same actual caret position but change visual
// position, or not.
if (oldPosition == lineRange.GetEnd())
{
if (m_caretAtLineStart)
{
// We're already at the start of the line, so actually move on now.
m_caretPosition = oldPosition + 1;
m_caretAtLineStart = false;
}
else
{
// We're showing at the end of the line, so keep to
// the same position but indicate that we're to show
// at the start of the next line.
m_caretPosition = oldPosition;
m_caretAtLineStart = true;
}
SetDefaultStyleToCursorStyle();
return;
}
}
}
m_caretPosition ++;
SetDefaultStyleToCursorStyle();
}
/// Move caret one visual step backward: this may mean setting a flag
/// and keeping the same position if we're going from the end of one line
/// to the start of the next, which may be the exact same caret position.
void wxRichTextCtrl::MoveCaretBack(long oldPosition)
{
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(oldPosition);
// Only do the check if we're not at the start of the paragraph (where things work OK
// anyway)
if (para && (oldPosition != para->GetRange().GetStart()))
{
wxRichTextLine* line = GetBuffer().GetLineAtPosition(oldPosition);
if (line)
{
wxRichTextRange lineRange = line->GetAbsoluteRange();
// We're at the start of a line. See whether we need to
// stay at the same actual caret position but change visual
// position, or not.
if (oldPosition == lineRange.GetStart())
{
m_caretPosition = oldPosition-1;
m_caretAtLineStart = true;
return;
}
else if (oldPosition == lineRange.GetEnd())
{
if (m_caretAtLineStart)
{
// We're at the start of the line, so keep the same caret position
// but clear the start-of-line flag.
m_caretPosition = oldPosition;
m_caretAtLineStart = false;
}
else
{
// We're showing at the end of the line, so go back
// to the previous character position.
m_caretPosition = oldPosition - 1;
}
SetDefaultStyleToCursorStyle();
return;
}
}
}
m_caretPosition --;
SetDefaultStyleToCursorStyle();
}
/// Move right
bool wxRichTextCtrl::MoveRight(int noPositions, int flags)
{
long endPos = GetBuffer().GetRange().GetEnd();
if (m_caretPosition + noPositions < endPos)
{
long oldPos = m_caretPosition;
long newPos = m_caretPosition + noPositions;
bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
if (!extendSel)
SelectNone();
// Determine by looking at oldPos and m_caretPosition whether
// we moved from the end of a line to the start of the next line, in which case
// we want to adjust the caret position such that it is positioned at the
// start of the next line, rather than jumping past the first character of the
// line.
if (noPositions == 1 && !extendSel)
MoveCaretForward(oldPos);
else
SetCaretPosition(newPos);
PositionCaret();
SetDefaultStyleToCursorStyle();
return true;
}
else
return false;
}
/// Move left
bool wxRichTextCtrl::MoveLeft(int noPositions, int flags)
{
long startPos = -1;
if (m_caretPosition > startPos - noPositions + 1)
{
long oldPos = m_caretPosition;
long newPos = m_caretPosition - noPositions;
bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
if (!extendSel)
SelectNone();
if (noPositions == 1 && !extendSel)
MoveCaretBack(oldPos);
else
SetCaretPosition(newPos);
PositionCaret();
SetDefaultStyleToCursorStyle();
return true;
}
else
return false;
}
/// Move up
bool wxRichTextCtrl::MoveUp(int noLines, int flags)
{
return MoveDown(- noLines, flags);
}
/// Move up
bool wxRichTextCtrl::MoveDown(int noLines, int flags)
{
if (!GetCaret())
return false;
long lineNumber = GetBuffer().GetVisibleLineNumber(m_caretPosition, true, m_caretAtLineStart);
wxPoint pt = GetCaret()->GetPosition();
long newLine = lineNumber + noLines;
if (lineNumber != -1)
{
if (noLines > 0)
{
long lastLine = GetBuffer().GetVisibleLineNumber(GetBuffer().GetRange().GetEnd());
if (newLine > lastLine)
return false;
}
else
{
if (newLine < 0)
return false;
}
}
wxRichTextLine* lineObj = GetBuffer().GetLineForVisibleLineNumber(newLine);
if (lineObj)
{
pt.y = lineObj->GetAbsolutePosition().y + 2;
}
else
return false;
long newPos = 0;
wxClientDC dc(this);
PrepareDC(dc);
dc.SetFont(GetFont());
int hitTest = GetBuffer().HitTest(dc, pt, newPos);
if (hitTest != wxRICHTEXT_HITTEST_NONE)
{
// If end of previous line, and hitTest is wxRICHTEXT_HITTEST_BEFORE,
// we want to be at the end of the last line but with m_caretAtLineStart set to true,
// so we view the caret at the start of the line.
bool caretLineStart = false;
if (hitTest & wxRICHTEXT_HITTEST_BEFORE)
{
wxRichTextLine* thisLine = GetBuffer().GetLineAtPosition(newPos-1);
wxRichTextRange lineRange;
if (thisLine)
lineRange = thisLine->GetAbsoluteRange();
if (thisLine && (newPos-1) == lineRange.GetEnd())
{
newPos --;
caretLineStart = true;
}
else
{
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(newPos);
if (para && para->GetRange().GetStart() == newPos)
newPos --;
}
}
long newSelEnd = newPos;
bool extendSel = ExtendSelection(m_caretPosition, newSelEnd, flags);
if (!extendSel)
SelectNone();
SetCaretPosition(newPos, caretLineStart);
PositionCaret();
SetDefaultStyleToCursorStyle();
return true;
}
return false;
}
/// Move to the end of the paragraph
bool wxRichTextCtrl::MoveToParagraphEnd(int flags)
{
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(m_caretPosition, true);
if (para)
{
long newPos = para->GetRange().GetEnd() - 1;
bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
if (!extendSel)
SelectNone();
SetCaretPosition(newPos);
PositionCaret();
SetDefaultStyleToCursorStyle();
return true;
}
return false;
}
/// Move to the start of the paragraph
bool wxRichTextCtrl::MoveToParagraphStart(int flags)
{
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(m_caretPosition, true);
if (para)
{
long newPos = para->GetRange().GetStart() - 1;
bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
if (!extendSel)
SelectNone();
SetCaretPosition(newPos);
PositionCaret();
SetDefaultStyleToCursorStyle();
return true;
}
return false;
}
/// Move to the end of the line
bool wxRichTextCtrl::MoveToLineEnd(int flags)
{
wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
if (line)
{
wxRichTextRange lineRange = line->GetAbsoluteRange();
long newPos = lineRange.GetEnd();
bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
if (!extendSel)
SelectNone();
SetCaretPosition(newPos);
PositionCaret();
SetDefaultStyleToCursorStyle();
return true;
}
return false;
}
/// Move to the start of the line
bool wxRichTextCtrl::MoveToLineStart(int flags)
{
wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
if (line)
{
wxRichTextRange lineRange = line->GetAbsoluteRange();
long newPos = lineRange.GetStart()-1;
bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
if (!extendSel)
SelectNone();
wxRichTextParagraph* para = GetBuffer().GetParagraphForLine(line);
SetCaretPosition(newPos, para->GetRange().GetStart() != lineRange.GetStart());
PositionCaret();
SetDefaultStyleToCursorStyle();
return true;
}
return false;
}
/// Move to the start of the buffer
bool wxRichTextCtrl::MoveHome(int flags)
{
if (m_caretPosition != -1)
{
bool extendSel = ExtendSelection(m_caretPosition, -1, flags);
if (!extendSel)
SelectNone();
SetCaretPosition(-1);
PositionCaret();
SetDefaultStyleToCursorStyle();
return true;
}
else
return false;
}
/// Move to the end of the buffer
bool wxRichTextCtrl::MoveEnd(int flags)
{
long endPos = GetBuffer().GetRange().GetEnd()-1;
if (m_caretPosition != endPos)
{
bool extendSel = ExtendSelection(m_caretPosition, endPos, flags);
if (!extendSel)
SelectNone();
SetCaretPosition(endPos);
PositionCaret();
SetDefaultStyleToCursorStyle();
return true;
}
else
return false;
}
/// Move noPages pages up
bool wxRichTextCtrl::PageUp(int noPages, int flags)
{
return PageDown(- noPages, flags);
}
/// Move noPages pages down
bool wxRichTextCtrl::PageDown(int noPages, int flags)
{
// Calculate which line occurs noPages * screen height further down.
wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
if (line)
{
wxSize clientSize = GetClientSize();
int newY = line->GetAbsolutePosition().y + noPages*clientSize.y;
wxRichTextLine* newLine = GetBuffer().GetLineAtYPosition(newY);
if (newLine)
{
wxRichTextRange lineRange = newLine->GetAbsoluteRange();
long pos = lineRange.GetStart()-1;
if (pos != m_caretPosition)
{
wxRichTextParagraph* para = GetBuffer().GetParagraphForLine(newLine);
bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
if (!extendSel)
SelectNone();
SetCaretPosition(pos, para->GetRange().GetStart() != lineRange.GetStart());
PositionCaret();
SetDefaultStyleToCursorStyle();
return true;
}
}
}
return false;
}
static bool wxRichTextCtrlIsWhitespace(const wxString& str)
{
return str == wxT(" ") || str == wxT("\t");
}
// Finds the caret position for the next word
long wxRichTextCtrl::FindNextWordPosition(int direction) const
{
long endPos = GetBuffer().GetRange().GetEnd();
if (direction > 0)
{
long i = m_caretPosition+1+direction; // +1 for conversion to character pos
// First skip current text to space
while (i < endPos && i > -1)
{
// i is in character, not caret positions
wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
wxRichTextLine* line = GetBuffer().GetLineAtPosition(i, false);
if (line && (i == line->GetAbsoluteRange().GetEnd()))
{
break;
}
else if (!wxRichTextCtrlIsWhitespace(text) && !text.empty())
i += direction;
else
{
break;
}
}
while (i < endPos && i > -1)
{
// i is in character, not caret positions
wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
wxRichTextLine* line = GetBuffer().GetLineAtPosition(i, false);
if (line && (i == line->GetAbsoluteRange().GetEnd()))
return wxMax(-1, i);
if (text.empty()) // End of paragraph, or maybe an image
return wxMax(-1, i - 1);
else if (wxRichTextCtrlIsWhitespace(text) || text.empty())
i += direction;
else
{
// Convert to caret position
return wxMax(-1, i - 1);
}
}
if (i >= endPos)
return endPos-1;
return i-1;
}
else
{
long i = m_caretPosition;
// First skip white space
while (i < endPos && i > -1)
{
// i is in character, not caret positions
wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
wxRichTextLine* line = GetBuffer().GetLineAtPosition(i, false);
if (text.empty() || (line && (i == line->GetAbsoluteRange().GetStart()))) // End of paragraph, or maybe an image
break;
else if (wxRichTextCtrlIsWhitespace(text) || text.empty())
i += direction;
else
break;
}
// Next skip current text to space
while (i < endPos && i > -1)
{
// i is in character, not caret positions
wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
wxRichTextLine* line = GetBuffer().GetLineAtPosition(i, false);
if (line && line->GetAbsoluteRange().GetStart() == i)
return i-1;
if (!wxRichTextCtrlIsWhitespace(text) /* && !text.empty() */)
i += direction;
else
{
return i;
}
}
if (i < -1)
return -1;
return i;
}
}
/// Move n words left
bool wxRichTextCtrl::WordLeft(int WXUNUSED(n), int flags)
{
long pos = FindNextWordPosition(-1);
if (pos != m_caretPosition)
{
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(pos, true);
bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
if (!extendSel)
SelectNone();
SetCaretPosition(pos, para->GetRange().GetStart() != pos);
PositionCaret();
SetDefaultStyleToCursorStyle();
return true;
}
return false;
}
/// Move n words right
bool wxRichTextCtrl::WordRight(int WXUNUSED(n), int flags)
{
long pos = FindNextWordPosition(1);
if (pos != m_caretPosition)
{
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(pos, true);
bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
if (!extendSel)
SelectNone();
SetCaretPosition(pos, para->GetRange().GetStart() != pos);
PositionCaret();
SetDefaultStyleToCursorStyle();
return true;
}
return false;
}
/// Sizing
void wxRichTextCtrl::OnSize(wxSizeEvent& event)
{
// Only do sizing optimization for large buffers
if (GetBuffer().GetRange().GetEnd() > m_delayedLayoutThreshold)
{
m_fullLayoutRequired = true;
m_fullLayoutTime = wxGetLocalTimeMillis();
m_fullLayoutSavedPosition = GetFirstVisiblePosition();
LayoutContent(true /* onlyVisibleRect */);
}
else
GetBuffer().Invalidate(wxRICHTEXT_ALL);
#if wxRICHTEXT_BUFFERED_PAINTING
RecreateBuffer();
#endif
event.Skip();
}
/// Idle-time processing
void wxRichTextCtrl::OnIdle(wxIdleEvent& event)
{
#if wxRICHTEXT_USE_OWN_CARET
if (((wxRichTextCaret*) GetCaret())->GetNeedsUpdate())
{
((wxRichTextCaret*) GetCaret())->SetNeedsUpdate(false);
PositionCaret();
GetCaret()->Show();
}
#endif
const int layoutInterval = wxRICHTEXT_DEFAULT_LAYOUT_INTERVAL;
if (m_fullLayoutRequired && (wxGetLocalTimeMillis() > (m_fullLayoutTime + layoutInterval)))
{
m_fullLayoutRequired = false;
m_fullLayoutTime = 0;
GetBuffer().Invalidate(wxRICHTEXT_ALL);
ShowPosition(m_fullLayoutSavedPosition);
Refresh(false);
}
if (m_caretPositionForDefaultStyle != -2)
{
// If the caret position has changed, no longer reflect the default style
// in the UI.
if (GetCaretPosition() != m_caretPositionForDefaultStyle)
m_caretPositionForDefaultStyle = -2;
}
event.Skip();
}
/// Scrolling
void wxRichTextCtrl::OnScroll(wxScrollWinEvent& event)
{
#if wxRICHTEXT_USE_OWN_CARET
if (!((wxRichTextCaret*) GetCaret())->GetNeedsUpdate())
{
GetCaret()->Hide();
((wxRichTextCaret*) GetCaret())->SetNeedsUpdate();
}
#endif
event.Skip();
}
/// Set up scrollbars, e.g. after a resize
void wxRichTextCtrl::SetupScrollbars(bool atTop)
{
if (m_freezeCount)
return;
if (GetBuffer().IsEmpty())
{
SetScrollbars(0, 0, 0, 0, 0, 0);
return;
}
// TODO: reimplement scrolling so we scroll by line, not by fixed number
// of pixels. See e.g. wxVScrolledWindow for ideas.
int pixelsPerUnit = 5;
wxSize clientSize = GetClientSize();
int maxHeight = GetBuffer().GetCachedSize().y + GetBuffer().GetTopMargin();
// Round up so we have at least maxHeight pixels
int unitsY = (int) (((float)maxHeight/(float)pixelsPerUnit) + 0.5);
int startX = 0, startY = 0;
if (!atTop)
GetViewStart(& startX, & startY);
int maxPositionX = 0; // wxMax(sz.x - clientSize.x, 0);
int maxPositionY = (int) ((((float)(wxMax((unitsY*pixelsPerUnit) - clientSize.y, 0)))/((float)pixelsPerUnit)) + 0.5);
int newStartX = wxMin(maxPositionX, startX);
int newStartY = wxMin(maxPositionY, startY);
int oldPPUX, oldPPUY;
int oldStartX, oldStartY;
int oldVirtualSizeX = 0, oldVirtualSizeY = 0;
GetScrollPixelsPerUnit(& oldPPUX, & oldPPUY);
GetViewStart(& oldStartX, & oldStartY);
GetVirtualSize(& oldVirtualSizeX, & oldVirtualSizeY);
if (oldPPUY > 0)
oldVirtualSizeY /= oldPPUY;
if (oldPPUX == 0 && oldPPUY == pixelsPerUnit && oldVirtualSizeY == unitsY && oldStartX == newStartX && oldStartY == newStartY)
return;
// Move to previous scroll position if
// possible
SetScrollbars(0, pixelsPerUnit, 0, unitsY, newStartX, newStartY);
}
/// Paint the background
void wxRichTextCtrl::PaintBackground(wxDC& dc)
{
wxColour backgroundColour = GetBackgroundColour();
if (!backgroundColour.Ok())
backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
// Clear the background
dc.SetBrush(wxBrush(backgroundColour));
dc.SetPen(*wxTRANSPARENT_PEN);
wxRect windowRect(GetClientSize());
windowRect.x -= 2; windowRect.y -= 2;
windowRect.width += 4; windowRect.height += 4;
// We need to shift the rectangle to take into account
// scrolling. Converting device to logical coordinates.
CalcUnscrolledPosition(windowRect.x, windowRect.y, & windowRect.x, & windowRect.y);
dc.DrawRectangle(windowRect);
}
#if wxRICHTEXT_BUFFERED_PAINTING
/// Recreate buffer bitmap if necessary
bool wxRichTextCtrl::RecreateBuffer(const wxSize& size)
{
wxSize sz = size;
if (sz == wxDefaultSize)
sz = GetClientSize();
if (sz.x < 1 || sz.y < 1)
return false;
if (!m_bufferBitmap.Ok() || m_bufferBitmap.GetWidth() < sz.x || m_bufferBitmap.GetHeight() < sz.y)
m_bufferBitmap = wxBitmap(sz.x, sz.y);
return m_bufferBitmap.Ok();
}
#endif
// ----------------------------------------------------------------------------
// file IO functions
// ----------------------------------------------------------------------------
bool wxRichTextCtrl::DoLoadFile(const wxString& filename, int fileType)
{
bool success = GetBuffer().LoadFile(filename, fileType);
if (success)
m_filename = filename;
DiscardEdits();
SetInsertionPoint(0);
LayoutContent();
PositionCaret();
SetupScrollbars(true);
Refresh(false);
SendTextUpdatedEvent();
if (success)
return true;
else
{
wxLogError(_("File couldn't be loaded."));
return false;
}
}
bool wxRichTextCtrl::DoSaveFile(const wxString& filename, int fileType)
{
if (GetBuffer().SaveFile(filename, fileType))
{
m_filename = filename;
DiscardEdits();
return true;
}
wxLogError(_("The text couldn't be saved."));
return false;
}
// ----------------------------------------------------------------------------
// wxRichTextCtrl specific functionality
// ----------------------------------------------------------------------------
/// Add a new paragraph of text to the end of the buffer
wxRichTextRange wxRichTextCtrl::AddParagraph(const wxString& text)
{
wxRichTextRange range = GetBuffer().AddParagraph(text);
LayoutContent();
return range;
}
/// Add an image
wxRichTextRange wxRichTextCtrl::AddImage(const wxImage& image)
{
wxRichTextRange range = GetBuffer().AddImage(image);
LayoutContent();
return range;
}
// ----------------------------------------------------------------------------
// selection and ranges
// ----------------------------------------------------------------------------
void wxRichTextCtrl::SelectAll()
{
SetSelection(-1, -1);
}
/// Select none
void wxRichTextCtrl::SelectNone()
{
if (!(GetSelectionRange() == wxRichTextRange(-2, -2)))
{
wxRichTextRange oldSelection = m_selectionRange;
m_selectionRange = wxRichTextRange(-2, -2);
wxRichTextCtrlRefreshForSelectionChange(*this, oldSelection, m_selectionRange);
}
m_selectionAnchor = -2;
}
static bool wxIsWordDelimiter(const wxString& text)
{
return !text.IsEmpty() && !wxIsalnum(text[0]);
}
/// Select the word at the given character position
bool wxRichTextCtrl::SelectWord(long position)
{
if (position < 0 || position > GetBuffer().GetRange().GetEnd())
return false;
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(position);
if (!para)
return false;
if (position == para->GetRange().GetEnd())
position --;
long positionStart = position;
long positionEnd = position;
for (positionStart = position; positionStart >= para->GetRange().GetStart(); positionStart --)
{
wxString text = GetBuffer().GetTextForRange(wxRichTextRange(positionStart, positionStart));
if (wxIsWordDelimiter(text))
{
positionStart ++;
break;
}
}
if (positionStart < para->GetRange().GetStart())
positionStart = para->GetRange().GetStart();
for (positionEnd = position; positionEnd < para->GetRange().GetEnd(); positionEnd ++)
{
wxString text = GetBuffer().GetTextForRange(wxRichTextRange(positionEnd, positionEnd));
if (wxIsWordDelimiter(text))
{
positionEnd --;
break;
}
}
if (positionEnd >= para->GetRange().GetEnd())
positionEnd = para->GetRange().GetEnd();
if (positionEnd < positionStart)
return false;
SetSelection(positionStart, positionEnd+1);
if (positionStart >= 0)
{
MoveCaret(positionStart-1, true);
SetDefaultStyleToCursorStyle();
}
return true;
}
wxString wxRichTextCtrl::GetStringSelection() const
{
long from, to;
GetSelection(&from, &to);
return GetRange(from, to);
}
// ----------------------------------------------------------------------------
// hit testing
// ----------------------------------------------------------------------------
wxTextCtrlHitTestResult
wxRichTextCtrl::HitTest(const wxPoint& pt, wxTextCoord *x, wxTextCoord *y) const
{
// implement in terms of the other overload as the native ports typically
// can get the position and not (x, y) pair directly (although wxUniv
// directly gets x and y -- and so overrides this method as well)
long pos;
wxTextCtrlHitTestResult rc = HitTest(pt, &pos);
if ( rc != wxTE_HT_UNKNOWN )
{
PositionToXY(pos, x, y);
}
return rc;
}
wxTextCtrlHitTestResult
wxRichTextCtrl::HitTest(const wxPoint& pt,
long * pos) const
{
wxClientDC dc((wxRichTextCtrl*) this);
((wxRichTextCtrl*)this)->PrepareDC(dc);
// Buffer uses logical position (relative to start of buffer)
// so convert
wxPoint pt2 = GetLogicalPoint(pt);
int hit = ((wxRichTextCtrl*)this)->GetBuffer().HitTest(dc, pt2, *pos);
if ((hit & wxRICHTEXT_HITTEST_BEFORE) && (hit & wxRICHTEXT_HITTEST_OUTSIDE))
return wxTE_HT_BEFORE;
else if ((hit & wxRICHTEXT_HITTEST_AFTER) && (hit & wxRICHTEXT_HITTEST_OUTSIDE))
return wxTE_HT_BEYOND;
else if (hit & (wxRICHTEXT_HITTEST_BEFORE|wxRICHTEXT_HITTEST_AFTER))
return wxTE_HT_ON_TEXT;
return wxTE_HT_UNKNOWN;
}
// ----------------------------------------------------------------------------
// set/get the controls text
// ----------------------------------------------------------------------------
wxString wxRichTextCtrl::GetValue() const
{
return GetBuffer().GetText();
}
wxString wxRichTextCtrl::GetRange(long from, long to) const
{
// Public API for range is different from internals
return GetBuffer().GetTextForRange(wxRichTextRange(from, to-1));
}
void wxRichTextCtrl::DoSetValue(const wxString& value, int flags)
{
// Don't call Clear here, since it always sends a text updated event
m_buffer.ResetAndClearCommands();
m_buffer.SetDirty(true);
m_caretPosition = -1;
m_caretPositionForDefaultStyle = -2;
m_caretAtLineStart = false;
m_selectionRange.SetRange(-2, -2);
Scroll(0,0);
if (m_freezeCount == 0)
{
LayoutContent();
Refresh(false);
}
if (!value.IsEmpty())
{
// Remove empty paragraph
GetBuffer().Clear();
DoWriteText(value, flags);
// for compatibility, don't move the cursor when doing SetValue()
SetInsertionPoint(0);
}
else
{
// still send an event for consistency
if (flags & SetValue_SendEvent)
SendTextUpdatedEvent();
}
DiscardEdits();
}
void wxRichTextCtrl::WriteText(const wxString& value)
{
DoWriteText(value);
}
void wxRichTextCtrl::DoWriteText(const wxString& value, int flags)
{
wxString valueUnix = wxTextFile::Translate(value, wxTextFileType_Unix);
GetBuffer().InsertTextWithUndo(m_caretPosition+1, valueUnix, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
if ( flags & SetValue_SendEvent )
SendTextUpdatedEvent();
}
void wxRichTextCtrl::AppendText(const wxString& text)
{
SetInsertionPointEnd();
WriteText(text);
}
/// Write an image at the current insertion point
bool wxRichTextCtrl::WriteImage(const wxImage& image, int bitmapType)
{
wxRichTextImageBlock imageBlock;
wxImage image2 = image;
if (imageBlock.MakeImageBlock(image2, bitmapType))
return WriteImage(imageBlock);
return false;
}
bool wxRichTextCtrl::WriteImage(const wxString& filename, int bitmapType)
{
wxRichTextImageBlock imageBlock;
wxImage image;
if (imageBlock.MakeImageBlock(filename, bitmapType, image, false))
return WriteImage(imageBlock);
return false;
}
bool wxRichTextCtrl::WriteImage(const wxRichTextImageBlock& imageBlock)
{
return GetBuffer().InsertImageWithUndo(m_caretPosition+1, imageBlock, this);
}
bool wxRichTextCtrl::WriteImage(const wxBitmap& bitmap, int bitmapType)
{
if (bitmap.Ok())
{
wxRichTextImageBlock imageBlock;
wxImage image = bitmap.ConvertToImage();
if (image.Ok() && imageBlock.MakeImageBlock(image, bitmapType))
return WriteImage(imageBlock);
}
return false;
}
/// Insert a newline (actually paragraph) at the current insertion point.
bool wxRichTextCtrl::Newline()
{
return GetBuffer().InsertNewlineWithUndo(m_caretPosition+1, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
}
/// Insert a line break at the current insertion point.
bool wxRichTextCtrl::LineBreak()
{
wxString text;
text = wxRichTextLineBreakChar;
return GetBuffer().InsertTextWithUndo(m_caretPosition+1, text, this);
}
// ----------------------------------------------------------------------------
// Clipboard operations
// ----------------------------------------------------------------------------
void wxRichTextCtrl::Copy()
{
if (CanCopy())
{
wxRichTextRange range = GetInternalSelectionRange();
GetBuffer().CopyToClipboard(range);
}
}
void wxRichTextCtrl::Cut()
{
if (CanCut())
{
wxRichTextRange range = GetInternalSelectionRange();
GetBuffer().CopyToClipboard(range);
DeleteSelectedContent();
LayoutContent();
Refresh(false);
}
}
void wxRichTextCtrl::Paste()
{
if (CanPaste())
{
BeginBatchUndo(_("Paste"));
long newPos = m_caretPosition;
DeleteSelectedContent(& newPos);
GetBuffer().PasteFromClipboard(newPos);
EndBatchUndo();
}
}
void wxRichTextCtrl::DeleteSelection()
{
if (CanDeleteSelection())
{
DeleteSelectedContent();
}
}
bool wxRichTextCtrl::HasSelection() const
{
return m_selectionRange.GetStart() != -2 && m_selectionRange.GetEnd() != -2;
}
bool wxRichTextCtrl::CanCopy() const
{
// Can copy if there's a selection
return HasSelection();
}
bool wxRichTextCtrl::CanCut() const
{
return HasSelection() && IsEditable();
}
bool wxRichTextCtrl::CanPaste() const
{
if ( !IsEditable() )
return false;
return GetBuffer().CanPasteFromClipboard();
}
bool wxRichTextCtrl::CanDeleteSelection() const
{
return HasSelection() && IsEditable();
}
// ----------------------------------------------------------------------------
// Accessors
// ----------------------------------------------------------------------------
void wxRichTextCtrl::SetContextMenu(wxMenu* menu)
{
if (m_contextMenu && m_contextMenu != menu)
delete m_contextMenu;
m_contextMenu = menu;
}
void wxRichTextCtrl::SetEditable(bool editable)
{
m_editable = editable;
}
void wxRichTextCtrl::SetInsertionPoint(long pos)
{
SelectNone();
m_caretPosition = pos - 1;
PositionCaret();
SetDefaultStyleToCursorStyle();
}
void wxRichTextCtrl::SetInsertionPointEnd()
{
long pos = GetLastPosition();
SetInsertionPoint(pos);
}
long wxRichTextCtrl::GetInsertionPoint() const
{
return m_caretPosition+1;
}
wxTextPos wxRichTextCtrl::GetLastPosition() const
{
return GetBuffer().GetRange().GetEnd();
}
// If the return values from and to are the same, there is no
// selection.
void wxRichTextCtrl::GetSelection(long* from, long* to) const
{
*from = m_selectionRange.GetStart();
*to = m_selectionRange.GetEnd();
if ((*to) != -1 && (*to) != -2)
(*to) ++;
}
bool wxRichTextCtrl::IsEditable() const
{
return m_editable;
}
// ----------------------------------------------------------------------------
// selection
// ----------------------------------------------------------------------------
void wxRichTextCtrl::SetSelection(long from, long to)
{
// if from and to are both -1, it means (in wxWidgets) that all text should
// be selected.
if ( (from == -1) && (to == -1) )
{
from = 0;
to = GetLastPosition()+1;
}
DoSetSelection(from, to);
}
void wxRichTextCtrl::DoSetSelection(long from, long to, bool WXUNUSED(scrollCaret))
{
if (from == to)
{
SelectNone();
}
else
{
wxRichTextRange oldSelection = m_selectionRange;
m_selectionAnchor = from-1;
m_selectionRange.SetRange(from, to-1);
m_caretPosition = wxMax(-1, to-1);
wxRichTextCtrlRefreshForSelectionChange(*this, oldSelection, m_selectionRange);
PositionCaret();
}
}
// ----------------------------------------------------------------------------
// Editing
// ----------------------------------------------------------------------------
void wxRichTextCtrl::Replace(long WXUNUSED(from), long WXUNUSED(to),
const wxString& value)
{
BeginBatchUndo(_("Replace"));
DeleteSelectedContent();
DoWriteText(value, SetValue_SelectionOnly);
EndBatchUndo();
}
void wxRichTextCtrl::Remove(long from, long to)
{
SelectNone();
GetBuffer().DeleteRangeWithUndo(wxRichTextRange(from, to-1), this);
LayoutContent();
if (!IsFrozen())
Refresh(false);
}
bool wxRichTextCtrl::IsModified() const
{
return m_buffer.IsModified();
}
void wxRichTextCtrl::MarkDirty()
{
m_buffer.Modify(true);
}
void wxRichTextCtrl::DiscardEdits()
{
m_caretPositionForDefaultStyle = -2;
m_buffer.Modify(false);
m_buffer.GetCommandProcessor()->ClearCommands();
}
int wxRichTextCtrl::GetNumberOfLines() const
{
return GetBuffer().GetParagraphCount();
}
// ----------------------------------------------------------------------------
// Positions <-> coords
// ----------------------------------------------------------------------------
long wxRichTextCtrl::XYToPosition(long x, long y) const
{
return GetBuffer().XYToPosition(x, y);
}
bool wxRichTextCtrl::PositionToXY(long pos, long *x, long *y) const
{
return GetBuffer().PositionToXY(pos, x, y);
}
// ----------------------------------------------------------------------------
//
// ----------------------------------------------------------------------------
void wxRichTextCtrl::ShowPosition(long pos)
{
if (!IsPositionVisible(pos))
ScrollIntoView(pos-1, WXK_DOWN);
}
int wxRichTextCtrl::GetLineLength(long lineNo) const
{
return GetBuffer().GetParagraphLength(lineNo);
}
wxString wxRichTextCtrl::GetLineText(long lineNo) const
{
return GetBuffer().GetParagraphText(lineNo);
}
// ----------------------------------------------------------------------------
// Undo/redo
// ----------------------------------------------------------------------------
void wxRichTextCtrl::Undo()
{
if (CanUndo())
{
GetCommandProcessor()->Undo();
}
}
void wxRichTextCtrl::Redo()
{
if (CanRedo())
{
GetCommandProcessor()->Redo();
}
}
bool wxRichTextCtrl::CanUndo() const
{
return GetCommandProcessor()->CanUndo() && IsEditable();
}
bool wxRichTextCtrl::CanRedo() const
{
return GetCommandProcessor()->CanRedo() && IsEditable();
}
// ----------------------------------------------------------------------------
// implementation details
// ----------------------------------------------------------------------------
void wxRichTextCtrl::Command(wxCommandEvent& event)
{
SetValue(event.GetString());
GetEventHandler()->ProcessEvent(event);
}
void wxRichTextCtrl::OnDropFiles(wxDropFilesEvent& event)
{
// By default, load the first file into the text window.
if (event.GetNumberOfFiles() > 0)
{
LoadFile(event.GetFiles()[0]);
}
}
wxSize wxRichTextCtrl::DoGetBestSize() const
{
return wxSize(10, 10);
}
// ----------------------------------------------------------------------------
// standard handlers for standard edit menu events
// ----------------------------------------------------------------------------
void wxRichTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
{
Cut();
}
void wxRichTextCtrl::OnClear(wxCommandEvent& WXUNUSED(event))
{
DeleteSelection();
}
void wxRichTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
{
Copy();
}
void wxRichTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
{
Paste();
}
void wxRichTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
{
Undo();
}
void wxRichTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
{
Redo();
}
void wxRichTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
{
event.Enable( CanCut() );
}
void wxRichTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
{
event.Enable( CanCopy() );
}
void wxRichTextCtrl::OnUpdateClear(wxUpdateUIEvent& event)
{
event.Enable( CanDeleteSelection() );
}
void wxRichTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
{
event.Enable( CanPaste() );
}
void wxRichTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
{
event.Enable( CanUndo() );
event.SetText( GetCommandProcessor()->GetUndoMenuLabel() );
}
void wxRichTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
{
event.Enable( CanRedo() );
event.SetText( GetCommandProcessor()->GetRedoMenuLabel() );
}
void wxRichTextCtrl::OnSelectAll(wxCommandEvent& WXUNUSED(event))
{
if (GetLastPosition() > 0)
SelectAll();
}
void wxRichTextCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event)
{
event.Enable(GetLastPosition() > 0);
}
void wxRichTextCtrl::OnContextMenu(wxContextMenuEvent& event)
{
if (event.GetEventObject() != this)
{
event.Skip();
return;
}
if (m_contextMenu)
PopupMenu(m_contextMenu);
return;
}
bool wxRichTextCtrl::SetStyle(long start, long end, const wxTextAttrEx& style)
{
return GetBuffer().SetStyle(wxRichTextRange(start, end-1), style);
}
bool wxRichTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
{
return GetBuffer().SetStyle(wxRichTextRange(start, end-1), wxTextAttrEx(style));
}
bool wxRichTextCtrl::SetStyle(const wxRichTextRange& range, const wxRichTextAttr& style)
{
return GetBuffer().SetStyle(range.ToInternal(), style);
}
// extended style setting operation with flags including:
// wxRICHTEXT_SETSTYLE_WITH_UNDO, wxRICHTEXT_SETSTYLE_OPTIMIZE, wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY.
// see richtextbuffer.h for more details.
bool wxRichTextCtrl::SetStyleEx(long start, long end, const wxTextAttrEx& style, int flags)
{
return GetBuffer().SetStyle(wxRichTextRange(start, end-1), style, flags);
}
bool wxRichTextCtrl::SetStyleEx(const wxRichTextRange& range, const wxTextAttrEx& style, int flags)
{
return GetBuffer().SetStyle(range.ToInternal(), style, flags);
}
bool wxRichTextCtrl::SetStyleEx(const wxRichTextRange& range, const wxRichTextAttr& style, int flags)
{
return GetBuffer().SetStyle(range.ToInternal(), style, flags);
}
bool wxRichTextCtrl::SetDefaultStyle(const wxTextAttrEx& style)
{
return GetBuffer().SetDefaultStyle(style);
}
bool wxRichTextCtrl::SetDefaultStyle(const wxTextAttr& style)
{
return GetBuffer().SetDefaultStyle(wxTextAttrEx(style));
}
const wxTextAttrEx& wxRichTextCtrl::GetDefaultStyleEx() const
{
return GetBuffer().GetDefaultStyle();
}
const wxTextAttr& wxRichTextCtrl::GetDefaultStyle() const
{
return GetBuffer().GetDefaultStyle();
}
bool wxRichTextCtrl::GetStyle(long position, wxTextAttr& style)
{
wxTextAttrEx attr(style);
if (GetBuffer().GetStyle(position, attr))
{
style = attr;
return true;
}
else
return false;
}
bool wxRichTextCtrl::GetStyle(long position, wxTextAttrEx& style)
{
return GetBuffer().GetStyle(position, style);
}
bool wxRichTextCtrl::GetStyle(long position, wxRichTextAttr& style)
{
return GetBuffer().GetStyle(position, style);
}
// get the common set of styles for the range
bool wxRichTextCtrl::GetStyleForRange(const wxRichTextRange& range, wxRichTextAttr& style)
{
wxTextAttrEx styleEx;
if (GetBuffer().GetStyleForRange(range.ToInternal(), styleEx))
{
style = styleEx;
return true;
}
else
return false;
}
bool wxRichTextCtrl::GetStyleForRange(const wxRichTextRange& range, wxTextAttrEx& style)
{
return GetBuffer().GetStyleForRange(range.ToInternal(), style);
}
/// Get the content (uncombined) attributes for this position.
bool wxRichTextCtrl::GetUncombinedStyle(long position, wxTextAttr& style)
{
wxTextAttrEx attr(style);
if (GetBuffer().GetUncombinedStyle(position, attr))
{
style = attr;
return true;
}
else
return false;
}
bool wxRichTextCtrl::GetUncombinedStyle(long position, wxTextAttrEx& style)
{
return GetBuffer().GetUncombinedStyle(position, style);
}
bool wxRichTextCtrl::GetUncombinedStyle(long position, wxRichTextAttr& style)
{
return GetBuffer().GetUncombinedStyle(position, style);
}
/// Set font, and also the buffer attributes
bool wxRichTextCtrl::SetFont(const wxFont& font)
{
wxControl::SetFont(font);
wxTextAttrEx attr = GetBuffer().GetAttributes();
attr.SetFont(font);
GetBuffer().SetBasicStyle(attr);
GetBuffer().Invalidate(wxRICHTEXT_ALL);
Refresh(false);
return true;
}
/// Transform logical to physical
wxPoint wxRichTextCtrl::GetPhysicalPoint(const wxPoint& ptLogical) const
{
wxPoint pt;
CalcScrolledPosition(ptLogical.x, ptLogical.y, & pt.x, & pt.y);
return pt;
}
/// Transform physical to logical
wxPoint wxRichTextCtrl::GetLogicalPoint(const wxPoint& ptPhysical) const
{
wxPoint pt;
CalcUnscrolledPosition(ptPhysical.x, ptPhysical.y, & pt.x, & pt.y);
return pt;
}
/// Position the caret
void wxRichTextCtrl::PositionCaret()
{
if (!GetCaret())
return;
wxRect caretRect;
if (GetCaretPositionForIndex(GetCaretPosition(), caretRect))
{
wxPoint newPt = caretRect.GetPosition();
wxSize newSz = caretRect.GetSize();
wxPoint pt = GetPhysicalPoint(newPt);
if (GetCaret()->GetPosition() != pt || GetCaret()->GetSize() != newSz)
{
//wxLogDebug(wxT("Positioning caret %d, %d"), pt.x, pt.y);
GetCaret()->Hide();
if (GetCaret()->GetSize() != newSz)
GetCaret()->SetSize(newSz);
int halfSize = newSz.y/2;
// If the caret is beyond the margin, hide it by moving it out of the way
if (((pt.y + halfSize) < GetBuffer().GetTopMargin()) || ((pt.y + halfSize) > (GetClientSize().y - GetBuffer().GetBottomMargin())))
pt.y = -200;
GetCaret()->Move(pt);
GetCaret()->Show();
}
}
}
/// Get the caret height and position for the given character position
bool wxRichTextCtrl::GetCaretPositionForIndex(long position, wxRect& rect)
{
wxClientDC dc(this);
dc.SetFont(GetFont());
PrepareDC(dc);
wxPoint pt;
int height = 0;
if (GetBuffer().FindPosition(dc, position, pt, & height, m_caretAtLineStart))
{
// Caret height can't be zero
if (height == 0)
height = dc.GetCharHeight();
rect = wxRect(pt, wxSize(wxRICHTEXT_DEFAULT_CARET_WIDTH, height));
return true;
}
return false;
}
/// Gets the line for the visible caret position. If the caret is
/// shown at the very end of the line, it means the next character is actually
/// on the following line. So let's get the line we're expecting to find
/// if this is the case.
wxRichTextLine* wxRichTextCtrl::GetVisibleLineForCaretPosition(long caretPosition) const
{
wxRichTextLine* line = GetBuffer().GetLineAtPosition(caretPosition, true);
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(caretPosition, true);
if (line)
{
wxRichTextRange lineRange = line->GetAbsoluteRange();
if (caretPosition == lineRange.GetStart()-1 &&
(para->GetRange().GetStart() != lineRange.GetStart()))
{
if (!m_caretAtLineStart)
line = GetBuffer().GetLineAtPosition(caretPosition-1, true);
}
}
return line;
}
/// Move the caret to the given character position
bool wxRichTextCtrl::MoveCaret(long pos, bool showAtLineStart)
{
if (GetBuffer().GetDirty())
LayoutContent();
if (pos <= GetBuffer().GetRange().GetEnd())
{
SetCaretPosition(pos, showAtLineStart);
PositionCaret();
return true;
}
else
return false;
}
/// Layout the buffer: which we must do before certain operations, such as
/// setting the caret position.
bool wxRichTextCtrl::LayoutContent(bool onlyVisibleRect)
{
if (GetBuffer().GetDirty() || onlyVisibleRect)
{
wxRect availableSpace(GetClientSize());
if (availableSpace.width == 0)
availableSpace.width = 10;
if (availableSpace.height == 0)
availableSpace.height = 10;
int flags = wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT;
if (onlyVisibleRect)
{
flags |= wxRICHTEXT_LAYOUT_SPECIFIED_RECT;
availableSpace.SetPosition(GetLogicalPoint(wxPoint(0, 0)));
}
wxClientDC dc(this);
dc.SetFont(GetFont());
PrepareDC(dc);
GetBuffer().Defragment();
GetBuffer().UpdateRanges(); // If items were deleted, ranges need recalculation
GetBuffer().Layout(dc, availableSpace, flags);
GetBuffer().SetDirty(false);
if (!IsFrozen())
SetupScrollbars();
}
return true;
}
/// Is all of the selection bold?
bool wxRichTextCtrl::IsSelectionBold()
{
if (HasSelection())
{
wxRichTextAttr attr;
wxRichTextRange range = GetSelectionRange();
attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
attr.SetFontWeight(wxBOLD);
return HasCharacterAttributes(range, attr);
}
else
{
// If no selection, then we need to combine current style with default style
// to see what the effect would be if we started typing.
wxRichTextAttr attr;
attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
long pos = GetAdjustedCaretPosition(GetCaretPosition());
if (GetStyle(pos, attr))
{
if (IsDefaultStyleShowing())
wxRichTextApplyStyle(attr, GetDefaultStyleEx());
return attr.GetFontWeight() == wxBOLD;
}
}
return false;
}
/// Is all of the selection italics?
bool wxRichTextCtrl::IsSelectionItalics()
{
if (HasSelection())
{
wxRichTextRange range = GetSelectionRange();
wxRichTextAttr attr;
attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
attr.SetFontStyle(wxITALIC);
return HasCharacterAttributes(range, attr);
}
else
{
// If no selection, then we need to combine current style with default style
// to see what the effect would be if we started typing.
wxRichTextAttr attr;
attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
long pos = GetAdjustedCaretPosition(GetCaretPosition());
if (GetStyle(pos, attr))
{
if (IsDefaultStyleShowing())
wxRichTextApplyStyle(attr, GetDefaultStyleEx());
return attr.GetFontStyle() == wxITALIC;
}
}
return false;
}
/// Is all of the selection underlined?
bool wxRichTextCtrl::IsSelectionUnderlined()
{
if (HasSelection())
{
wxRichTextRange range = GetSelectionRange();
wxRichTextAttr attr;
attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
attr.SetFontUnderlined(true);
return HasCharacterAttributes(range, attr);
}
else
{
// If no selection, then we need to combine current style with default style
// to see what the effect would be if we started typing.
wxRichTextAttr attr;
attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
long pos = GetAdjustedCaretPosition(GetCaretPosition());
if (GetStyle(pos, attr))
{
if (IsDefaultStyleShowing())
wxRichTextApplyStyle(attr, GetDefaultStyleEx());
return attr.GetFontUnderlined();
}
}
return false;
}
/// Apply bold to the selection
bool wxRichTextCtrl::ApplyBoldToSelection()
{
wxRichTextAttr attr;
attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
attr.SetFontWeight(IsSelectionBold() ? wxNORMAL : wxBOLD);
if (HasSelection())
return SetStyleEx(GetSelectionRange(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY);
else
{
wxRichTextAttr current = GetDefaultStyleEx();
current.Apply(attr);
SetAndShowDefaultStyle(current);
}
return true;
}
/// Apply italic to the selection
bool wxRichTextCtrl::ApplyItalicToSelection()
{
wxRichTextAttr attr;
attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
attr.SetFontStyle(IsSelectionItalics() ? wxNORMAL : wxITALIC);
if (HasSelection())
return SetStyleEx(GetSelectionRange(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY);
else
{
wxRichTextAttr current = GetDefaultStyleEx();
current.Apply(attr);
SetAndShowDefaultStyle(current);
}
return true;
}
/// Apply underline to the selection
bool wxRichTextCtrl::ApplyUnderlineToSelection()
{
wxRichTextAttr attr;
attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
attr.SetFontUnderlined(!IsSelectionUnderlined());
if (HasSelection())
return SetStyleEx(GetSelectionRange(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY);
else
{
wxRichTextAttr current = GetDefaultStyleEx();
current.Apply(attr);
SetAndShowDefaultStyle(current);
}
return true;
}
/// Is all of the selection aligned according to the specified flag?
bool wxRichTextCtrl::IsSelectionAligned(wxTextAttrAlignment alignment)
{
wxRichTextRange range;
if (HasSelection())
range = GetSelectionRange();
else
range = wxRichTextRange(GetCaretPosition()+1, GetCaretPosition()+2);
wxRichTextAttr attr;
attr.SetAlignment(alignment);
return HasParagraphAttributes(range, attr);
}
/// Apply alignment to the selection
bool wxRichTextCtrl::ApplyAlignmentToSelection(wxTextAttrAlignment alignment)
{
wxRichTextAttr attr;
attr.SetAlignment(alignment);
if (HasSelection())
return SetStyle(GetSelectionRange(), attr);
else
{
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(GetCaretPosition()+1);
if (para)
return SetStyleEx(para->GetRange().FromInternal(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY);
}
return true;
}
/// Apply a named style to the selection
bool wxRichTextCtrl::ApplyStyle(wxRichTextStyleDefinition* def)
{
// Flags are defined within each definition, so only certain
// attributes are applied.
wxRichTextAttr attr(GetStyleSheet() ? def->GetStyleMergedWithBase(GetStyleSheet()) : def->GetStyle());
int flags = wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_RESET;
if (def->IsKindOf(CLASSINFO(wxRichTextListStyleDefinition)))
{
flags |= wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY;
wxRichTextRange range;
if (HasSelection())
range = GetSelectionRange();
else
{
long pos = GetAdjustedCaretPosition(GetCaretPosition());
range = wxRichTextRange(pos, pos+1);
}
return SetListStyle(range, (wxRichTextListStyleDefinition*) def, flags);
}
bool isPara = false;
// Make sure the attr has the style name
if (def->IsKindOf(CLASSINFO(wxRichTextParagraphStyleDefinition)))
{
isPara = true;
attr.SetParagraphStyleName(def->GetName());
// If applying a paragraph style, we only want the paragraph nodes to adopt these
// attributes, and not the leaf nodes. This will allow the content (e.g. text)
// to change its style independently.
flags |= wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY;
}
else
attr.SetCharacterStyleName(def->GetName());
if (HasSelection())
return SetStyleEx(GetSelectionRange(), attr, flags);
else
{
wxRichTextAttr current = GetDefaultStyleEx();
wxRichTextAttr defaultStyle(attr);
if (isPara)
{
// Don't apply extra character styles since they are already implied
// in the paragraph style
defaultStyle.SetFlags(defaultStyle.GetFlags() & ~wxTEXT_ATTR_CHARACTER);
}
current.Apply(defaultStyle);
SetAndShowDefaultStyle(current);
// If it's a paragraph style, we want to apply the style to the
// current paragraph even if we didn't select any text.
if (isPara)
{
long pos = GetAdjustedCaretPosition(GetCaretPosition());
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(pos);
if (para)
{
return SetStyleEx(para->GetRange().FromInternal(), attr, flags);
}
}
return true;
}
}
/// Apply the style sheet to the buffer, for example if the styles have changed.
bool wxRichTextCtrl::ApplyStyleSheet(wxRichTextStyleSheet* styleSheet)
{
if (!styleSheet)
styleSheet = GetBuffer().GetStyleSheet();
if (!styleSheet)
return false;
if (GetBuffer().ApplyStyleSheet(styleSheet))
{
GetBuffer().Invalidate(wxRICHTEXT_ALL);
Refresh(false);
return true;
}
else
return false;
}
/// Sets the default style to the style under the cursor
bool wxRichTextCtrl::SetDefaultStyleToCursorStyle()
{
wxTextAttrEx attr;
attr.SetFlags(wxTEXT_ATTR_CHARACTER);
// If at the start of a paragraph, use the next position.
long pos = GetAdjustedCaretPosition(GetCaretPosition());
if (GetUncombinedStyle(pos, attr))
{
SetDefaultStyle(attr);
return true;
}
return false;
}
/// Returns the first visible position in the current view
long wxRichTextCtrl::GetFirstVisiblePosition() const
{
wxRichTextLine* line = GetBuffer().GetLineAtYPosition(GetLogicalPoint(wxPoint(0, 0)).y);
if (line)
return line->GetAbsoluteRange().GetStart();
else
return 0;
}
/// Get the first visible point in the window
wxPoint wxRichTextCtrl::GetFirstVisiblePoint() const
{
int ppuX, ppuY;
int startXUnits, startYUnits;
GetScrollPixelsPerUnit(& ppuX, & ppuY);
GetViewStart(& startXUnits, & startYUnits);
return wxPoint(startXUnits * ppuX, startYUnits * ppuY);
}
/// The adjusted caret position is the character position adjusted to take
/// into account whether we're at the start of a paragraph, in which case
/// style information should be taken from the next position, not current one.
long wxRichTextCtrl::GetAdjustedCaretPosition(long caretPos) const
{
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(caretPos+1);
if (para && (caretPos+1 == para->GetRange().GetStart()))
caretPos ++;
return caretPos;
}
/// Get/set the selection range in character positions. -1, -1 means no selection.
/// The range is in API convention, i.e. a single character selection is denoted
/// by (n, n+1)
wxRichTextRange wxRichTextCtrl::GetSelectionRange() const
{
wxRichTextRange range = GetInternalSelectionRange();
if (range != wxRichTextRange(-2,-2) && range != wxRichTextRange(-1,-1))
range.SetEnd(range.GetEnd() + 1);
return range;
}
void wxRichTextCtrl::SetSelectionRange(const wxRichTextRange& range)
{
SetSelection(range.GetStart(), range.GetEnd());
}
/// Set list style
bool wxRichTextCtrl::SetListStyle(const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
{
return GetBuffer().SetListStyle(range.ToInternal(), def, flags, startFrom, specifiedLevel);
}
bool wxRichTextCtrl::SetListStyle(const wxRichTextRange& range, const wxString& defName, int flags, int startFrom, int specifiedLevel)
{
return GetBuffer().SetListStyle(range.ToInternal(), defName, flags, startFrom, specifiedLevel);
}
/// Clear list for given range
bool wxRichTextCtrl::ClearListStyle(const wxRichTextRange& range, int flags)
{
return GetBuffer().ClearListStyle(range.ToInternal(), flags);
}
/// Number/renumber any list elements in the given range
bool wxRichTextCtrl::NumberList(const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
{
return GetBuffer().NumberList(range.ToInternal(), def, flags, startFrom, specifiedLevel);
}
bool wxRichTextCtrl::NumberList(const wxRichTextRange& range, const wxString& defName, int flags, int startFrom, int specifiedLevel)
{
return GetBuffer().NumberList(range.ToInternal(), defName, flags, startFrom, specifiedLevel);
}
/// Promote the list items within the given range. promoteBy can be a positive or negative number, e.g. 1 or -1
bool wxRichTextCtrl::PromoteList(int promoteBy, const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int specifiedLevel)
{
return GetBuffer().PromoteList(promoteBy, range.ToInternal(), def, flags, specifiedLevel);
}
bool wxRichTextCtrl::PromoteList(int promoteBy, const wxRichTextRange& range, const wxString& defName, int flags, int specifiedLevel)
{
return GetBuffer().PromoteList(promoteBy, range.ToInternal(), defName, flags, specifiedLevel);
}
/// Deletes the content in the given range
bool wxRichTextCtrl::Delete(const wxRichTextRange& range)
{
return GetBuffer().DeleteRangeWithUndo(range.ToInternal(), this);
}
const wxArrayString& wxRichTextCtrl::GetAvailableFontNames()
{
if (sm_availableFontNames.GetCount() == 0)
{
sm_availableFontNames = wxFontEnumerator::GetFacenames();
sm_availableFontNames.Sort();
}
return sm_availableFontNames;
}
void wxRichTextCtrl::ClearAvailableFontNames()
{
sm_availableFontNames.Clear();
}
// Refresh the area affected by a selection change
bool wxRichTextCtrlRefreshForSelectionChange(wxRichTextCtrl& ctrl, const wxRichTextRange& oldSelection, const wxRichTextRange& newSelection)
{
// Calculate the refresh rectangle - just the affected lines
long firstPos, lastPos;
if (oldSelection.GetStart() == -2 && newSelection.GetStart() != -2)
{
firstPos = newSelection.GetStart();
lastPos = newSelection.GetEnd();
}
else if (oldSelection.GetStart() != -2 && newSelection.GetStart() == -2)
{
firstPos = oldSelection.GetStart();
lastPos = oldSelection.GetEnd();
}
else if (oldSelection.GetStart() == -2 && newSelection.GetStart() == -2)
{
return false;
}
else
{
firstPos = wxMin(oldSelection.GetStart(), newSelection.GetStart());
lastPos = wxMax(oldSelection.GetEnd(), newSelection.GetEnd());
}
wxRichTextLine* firstLine = ctrl.GetBuffer().GetLineAtPosition(firstPos);
wxRichTextLine* lastLine = ctrl.GetBuffer().GetLineAtPosition(lastPos);
if (firstLine && lastLine)
{
wxSize clientSize = ctrl.GetClientSize();
wxPoint pt1 = ctrl.GetPhysicalPoint(firstLine->GetAbsolutePosition());
wxPoint pt2 = ctrl.GetPhysicalPoint(lastLine->GetAbsolutePosition()) + wxPoint(0, lastLine->GetSize().y);
pt1.x = 0;
pt1.y = wxMax(0, pt1.y);
pt2.x = 0;
pt2.y = wxMin(clientSize.y, pt2.y);
wxRect rect(pt1, wxSize(clientSize.x, pt2.y - pt1.y));
ctrl.RefreshRect(rect, false);
}
else
ctrl.Refresh(false);
return true;
}
#if wxRICHTEXT_USE_OWN_CARET
// ----------------------------------------------------------------------------
// initialization and destruction
// ----------------------------------------------------------------------------
void wxRichTextCaret::Init()
{
m_hasFocus = true;
m_xOld =
m_yOld = -1;
m_richTextCtrl = NULL;
m_needsUpdate = false;
m_flashOn = true;
}
wxRichTextCaret::~wxRichTextCaret()
{
if (m_timer.IsRunning())
m_timer.Stop();
}
// ----------------------------------------------------------------------------
// showing/hiding/moving the caret (base class interface)
// ----------------------------------------------------------------------------
void wxRichTextCaret::DoShow()
{
m_flashOn = true;
if (!m_timer.IsRunning())
m_timer.Start(GetBlinkTime());
Refresh();
}
void wxRichTextCaret::DoHide()
{
if (m_timer.IsRunning())
m_timer.Stop();
Refresh();
}
void wxRichTextCaret::DoMove()
{
if (IsVisible())
{
Refresh();
if (m_xOld != -1 && m_yOld != -1)
{
if (m_richTextCtrl)
{
wxRect rect(GetPosition(), GetSize());
m_richTextCtrl->RefreshRect(rect, false);
}
}
}
m_xOld = m_x;
m_yOld = m_y;
}
void wxRichTextCaret::DoSize()
{
int countVisible = m_countVisible;
if (countVisible > 0)
{
m_countVisible = 0;
DoHide();
}
if (countVisible > 0)
{
m_countVisible = countVisible;
DoShow();
}
}
// ----------------------------------------------------------------------------
// handling the focus
// ----------------------------------------------------------------------------
void wxRichTextCaret::OnSetFocus()
{
m_hasFocus = true;
if ( IsVisible() )
Refresh();
}
void wxRichTextCaret::OnKillFocus()
{
m_hasFocus = false;
}
// ----------------------------------------------------------------------------
// drawing the caret
// ----------------------------------------------------------------------------
void wxRichTextCaret::Refresh()
{
if (m_richTextCtrl)
{
wxRect rect(GetPosition(), GetSize());
m_richTextCtrl->RefreshRect(rect, false);
}
}
void wxRichTextCaret::DoDraw(wxDC *dc)
{
dc->SetPen( *wxBLACK_PEN );
dc->SetBrush(*(m_hasFocus ? wxBLACK_BRUSH : wxTRANSPARENT_BRUSH));
dc->SetPen(*wxBLACK_PEN);
wxPoint pt(m_x, m_y);
if (m_richTextCtrl)
{
pt = m_richTextCtrl->GetLogicalPoint(pt);
}
if (IsVisible() && m_flashOn)
dc->DrawRectangle(pt.x, pt.y, m_width, m_height);
}
void wxRichTextCaret::Notify()
{
m_flashOn = !m_flashOn;
Refresh();
}
void wxRichTextCaretTimer::Notify()
{
m_caret->Notify();
}
#endif
// wxRICHTEXT_USE_OWN_CARET
#endif
// wxUSE_RICHTEXT
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