mirror of
https://github.com/aseprite/aseprite.git
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217 lines
5.0 KiB
C++
217 lines
5.0 KiB
C++
// Aseprite UI Library
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// Copyright (C) 2001-2013 David Capello
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//
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// This file is released under the terms of the MIT license.
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// Read LICENSE.txt for more information.
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <allegro.h>
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#include "gfx/size.h"
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#include "ui/graphics.h"
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#include "ui/intern.h"
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#include "ui/preferred_size_event.h"
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#include "ui/theme.h"
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#include "ui/ui.h"
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namespace ui {
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using namespace gfx;
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PopupWindow::PopupWindow(const base::string& text, ClickBehavior clickBehavior)
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: Window(WithTitleBar, text)
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, m_clickBehavior(clickBehavior)
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, m_filtering(false)
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{
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setSizeable(false);
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setMoveable(false);
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setWantFocus(false);
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setAlign(JI_LEFT | JI_TOP);
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removeDecorativeWidgets();
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initTheme();
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noBorderNoChildSpacing();
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}
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PopupWindow::~PopupWindow()
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{
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stopFilteringMessages();
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}
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/**
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* @param region The new hot-region. This pointer is holded by the @a widget.
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* So you cannot destroy it after calling this routine.
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*/
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void PopupWindow::setHotRegion(const gfx::Region& region)
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{
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startFilteringMessages();
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m_hotRegion = region;
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}
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void PopupWindow::makeFloating()
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{
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stopFilteringMessages();
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setMoveable(true);
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}
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void PopupWindow::makeFixed()
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{
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startFilteringMessages();
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setMoveable(false);
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}
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bool PopupWindow::onProcessMessage(Message* msg)
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{
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switch (msg->type()) {
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case kCloseMessage:
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stopFilteringMessages();
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break;
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case kMouseLeaveMessage:
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if (m_hotRegion.isEmpty() && !isMoveable())
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closeWindow(NULL);
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break;
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case kKeyDownMessage:
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if (m_filtering) {
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KeyMessage* keymsg = static_cast<KeyMessage*>(msg);
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KeyScancode scancode = keymsg->scancode();
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if (scancode == kKeyEsc ||
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scancode == kKeyEnter ||
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scancode == kKeyEnterPad) {
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closeWindow(NULL);
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}
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// If we are filtering messages we don't propagate key-events
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// to other widgets. As we're a popup window and we're
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// filtering messages, the user shouldn't be able to start
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// other actions pressing keyboard shortcuts.
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return false;
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}
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break;
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case kMouseDownMessage:
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if (m_filtering) {
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gfx::Point mousePos = static_cast<MouseMessage*>(msg)->position();
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switch (m_clickBehavior) {
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// If the user click outside the window, we have to close
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// the tooltip window.
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case kCloseOnClickInOtherWindow: {
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Widget* picked = pick(mousePos);
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if (!picked || picked->getRoot() != this) {
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closeWindow(NULL);
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}
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break;
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}
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case kCloseOnClickOutsideHotRegion:
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if (!m_hotRegion.contains(mousePos)) {
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closeWindow(NULL);
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}
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break;
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}
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}
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break;
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case kMouseMoveMessage:
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if (!isMoveable() &&
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!m_hotRegion.isEmpty() &&
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getManager()->getCapture() == NULL) {
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gfx::Point mousePos = static_cast<MouseMessage*>(msg)->position();
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// If the mouse is outside the hot-region we have to close the
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// window.
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if (!m_hotRegion.contains(mousePos))
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closeWindow(NULL);
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}
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break;
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}
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return Window::onProcessMessage(msg);
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}
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void PopupWindow::onPreferredSize(PreferredSizeEvent& ev)
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{
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ScreenGraphics g;
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g.setFont(getFont());
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Size resultSize(0, 0);
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if (hasText())
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resultSize = g.fitString(getText(),
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(getClientBounds() - getBorder()).w,
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getAlign());
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resultSize.w += border_width.l + border_width.r;
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resultSize.h += border_width.t + border_width.b;
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if (!getChildren().empty()) {
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Size maxSize(0, 0);
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Size reqSize;
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UI_FOREACH_WIDGET(getChildren(), it) {
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Widget* child = *it;
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reqSize = child->getPreferredSize();
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maxSize.w = MAX(maxSize.w, reqSize.w);
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maxSize.h = MAX(maxSize.h, reqSize.h);
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}
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resultSize.w = MAX(resultSize.w, border_width.l + maxSize.w + border_width.r);
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resultSize.h += maxSize.h;
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}
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ev.setPreferredSize(resultSize);
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}
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void PopupWindow::onPaint(PaintEvent& ev)
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{
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getTheme()->paintPopupWindow(ev);
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}
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void PopupWindow::onInitTheme(InitThemeEvent& ev)
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{
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Widget::onInitTheme(ev);
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this->border_width.l = 3 * jguiscale();
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this->border_width.t = 3 * jguiscale();
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this->border_width.r = 3 * jguiscale();
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this->border_width.b = 3 * jguiscale();
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}
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void PopupWindow::startFilteringMessages()
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{
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if (!m_filtering) {
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m_filtering = true;
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Manager* manager = Manager::getDefault();
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manager->addMessageFilter(kMouseMoveMessage, this);
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manager->addMessageFilter(kMouseDownMessage, this);
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manager->addMessageFilter(kKeyDownMessage, this);
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}
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}
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void PopupWindow::stopFilteringMessages()
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{
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if (m_filtering) {
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m_filtering = false;
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Manager* manager = Manager::getDefault();
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manager->removeMessageFilter(kMouseMoveMessage, this);
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manager->removeMessageFilter(kMouseDownMessage, this);
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manager->removeMessageFilter(kKeyDownMessage, this);
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}
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}
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} // namespace ui
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