//////////////////////////////////////////////////////////////////////////////
//
// License Agreement:
//
// The following are Copyright © 2008, Casey Langen, André Wösten
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// Sources and Binaries of: win32cpp
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//////////////////////////////////////////////////////////////////////////////

#include <pch.h>
#include <win32cpp/CheckBox.hpp>
#include <win32cpp/Application.hpp>

//////////////////////////////////////////////////////////////////////////////

using namespace win32cpp;

//////////////////////////////////////////////////////////////////////////////

///\brief
///Constructor.
///
///\param caption
///The caption that beside the checkbox
/*ctor*/    CheckBox::CheckBox(const uichar* caption, LayoutFlags layoutFlags, int style)
: base(layoutFlags)
, caption(caption)
, style(style)
{
}

HWND        CheckBox::Create(Window* parent)
{
    HINSTANCE hInstance = Application::Instance();

    // create the window
    DWORD style = WS_CHILD | WS_VISIBLE | this->style | BS_NOTIFY;
    //
    HWND hwnd = CreateWindowEx(
        NULL,                   // ExStyle
        _T("BUTTON"),           // Class name
        this->caption.c_str(),  // Window name
        style,                  // Style
        0,                      // X
        0,                      // Y
        64,                     // Width
        28,                     // Height
        parent->Handle(),       // Parent
        NULL,                   // Menu
        hInstance,              // Instance
        NULL);                  // lParam

    return hwnd;
}

LRESULT     CheckBox::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
    case WM_COMMAND:
        switch (HIWORD(wParam))
        {
        case BN_CLICKED:
            this->state = (int)SendMessage(BM_GETCHECK, 0, 0);
            this->OnPressed(this->state);

            return 0;
        }
    }

    return this->DefaultWindowProc(message, wParam, lParam);
}

void        CheckBox::OnPressed(int state)
{
    this->Pressed(this, state);
}

void        CheckBox::PaintToHDC(HDC hdc, const Rect& rect)
{
    this->WindowProc(WM_PAINT, (WPARAM) (HDC) hdc, PRF_CLIENT);

    if (::GetFocus() == this->Handle())
    {
        RECT focusRect = rect;
        ::InflateRect(&focusRect, -4, -4);
        ::DrawFocusRect(hdc, &focusRect);
    }
}

bool        CheckBox::IsChecked(void) const
{
    return (this->state == BST_CHECKED);
}

bool        CheckBox::IsUnchecked(void) const
{
    return (this->state == BST_UNCHECKED);
}

bool        CheckBox::IsIndeterminate(void) const
{
    return (this->state == BST_INDETERMINATE);
}

void        CheckBox::Check(void)
{
    SendMessage(BM_SETCHECK, BST_CHECKED, 0);
    this->state = BST_CHECKED;
}

void        CheckBox::Uncheck(void)
{
    SendMessage(BM_SETCHECK, BST_UNCHECKED, 0);
    this->state = BST_UNCHECKED;
}

void        CheckBox::SetIndeterminate(void)
{
    SendMessage(BM_SETCHECK, BST_INDETERMINATE, 0);
    this->state = BST_INDETERMINATE;
}