a7f414bba7
This patch enables basic drag&drop between applications. You initiate a drag by creating a GDragOperation object and calling exec() on it. This creates a nested event loop in the calling program that only returns once the drag operation has ended. On the receiving side, you get a call to GWidget::drop_event() with a GDropEvent containing information about the dropped data. The only data passed right now is a piece of text that's also used to visually indicate that a drag is happening (by showing the text in a little box that follows the mouse cursor around.) There are things to fix here, but we're off to a nice start. :^)
70 lines
1.7 KiB
C++
70 lines
1.7 KiB
C++
#pragma once
|
|
|
|
#include <AK/OwnPtr.h>
|
|
#include <AK/RefPtr.h>
|
|
#include <LibCore/CObject.h>
|
|
#include <LibCore/CTimer.h>
|
|
#include <LibDraw/DisjointRectSet.h>
|
|
#include <LibDraw/GraphicsBitmap.h>
|
|
|
|
class Painter;
|
|
class WSCursor;
|
|
|
|
enum class WallpaperMode {
|
|
Simple,
|
|
Tile,
|
|
Center,
|
|
Scaled,
|
|
Unchecked
|
|
};
|
|
|
|
class WSCompositor final : public CObject {
|
|
C_OBJECT(WSCompositor)
|
|
public:
|
|
static WSCompositor& the();
|
|
|
|
void compose();
|
|
void invalidate();
|
|
void invalidate(const Rect&);
|
|
|
|
void set_resolution(int desired_width, int desired_height);
|
|
|
|
bool set_wallpaper(const String& path, Function<void(bool)>&& callback);
|
|
String wallpaper_path() const { return m_wallpaper_path; }
|
|
|
|
void invalidate_cursor();
|
|
Rect current_cursor_rect() const;
|
|
|
|
private:
|
|
WSCompositor();
|
|
void init_bitmaps();
|
|
void flip_buffers();
|
|
void flush(const Rect&);
|
|
void draw_cursor();
|
|
void draw_geometry_label();
|
|
void draw_menubar();
|
|
void run_animations();
|
|
|
|
unsigned m_compose_count { 0 };
|
|
unsigned m_flush_count { 0 };
|
|
RefPtr<CTimer> m_compose_timer;
|
|
RefPtr<CTimer> m_immediate_compose_timer;
|
|
bool m_flash_flush { false };
|
|
bool m_buffers_are_flipped { false };
|
|
bool m_screen_can_set_buffer { false };
|
|
|
|
RefPtr<GraphicsBitmap> m_front_bitmap;
|
|
RefPtr<GraphicsBitmap> m_back_bitmap;
|
|
OwnPtr<Painter> m_back_painter;
|
|
OwnPtr<Painter> m_front_painter;
|
|
|
|
DisjointRectSet m_dirty_rects;
|
|
|
|
Rect m_last_cursor_rect;
|
|
Rect m_last_dnd_rect;
|
|
Rect m_last_geometry_label_rect;
|
|
|
|
String m_wallpaper_path;
|
|
WallpaperMode m_wallpaper_mode { WallpaperMode::Unchecked };
|
|
RefPtr<GraphicsBitmap> m_wallpaper;
|
|
};
|