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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/Function.h>
#include <AK/String.h>
#include <AK/WeakPtr.h>
#include <LibCore/Object.h>
#include <LibGUI/Forward.h>
#include <LibGUI/WindowType.h>
#include <LibGfx/Color.h>
#include <LibGfx/Forward.h>
#include <LibGfx/Rect.h>
namespace GUI {
enum class StandardCursor {
None = 0,
Arrow,
IBeam,
ResizeHorizontal,
ResizeVertical,
ResizeDiagonalTLBR,
ResizeDiagonalBLTR,
Hand,
};
class Window : public Core::Object {
C_OBJECT(Window)
public:
virtual ~Window() override;
static Window* from_window_id(int);
bool is_modal() const { return m_modal; }
void set_modal(bool);
bool is_fullscreen() const { return m_fullscreen; }
void set_fullscreen(bool);
bool is_resizable() const { return m_resizable; }
void set_resizable(bool resizable) { m_resizable = resizable; }
bool is_minimizable() const { return m_minimizable; }
void set_minimizable(bool minimizable) { m_minimizable = minimizable; }
void set_double_buffering_enabled(bool);
void set_has_alpha_channel(bool);
void set_opacity(float);
void set_window_type(WindowType);
int window_id() const { return m_window_id; }
String title() const;
void set_title(const StringView&);
bool show_titlebar() const { return m_show_titlebar; };
void set_show_titlebar(bool show) { m_show_titlebar = show; };
Color background_color() const { return m_background_color; }
void set_background_color(Color color) { m_background_color = color; }
enum class CloseRequestDecision {
StayOpen,
Close,
};
Function<CloseRequestDecision()> on_close_request;
int x() const { return rect().x(); }
int y() const { return rect().y(); }
int width() const { return rect().width(); }
int height() const { return rect().height(); }
Gfx::Rect rect() const;
Gfx::Size size() const { return rect().size(); }
void set_rect(const Gfx::Rect&);
void set_rect(int x, int y, int width, int height) { set_rect({ x, y, width, height }); }
Gfx::Point position() const { return rect().location(); }
void move_to(int x, int y) { move_to({ x, y }); }
void move_to(const Gfx::Point& point) { set_rect({ point, size() }); }
void resize(int width, int height) { resize({ width, height }); }
void resize(const Gfx::Size& size) { set_rect({ position(), size }); }
virtual void event(Core::Event&) override;
bool is_visible() const;
bool is_active() const { return m_is_active; }
void show();
void hide();
virtual void close();
void move_to_front();
void start_wm_resize();
Widget* main_widget() { return m_main_widget; }
const Widget* main_widget() const { return m_main_widget; }
void set_main_widget(Widget*);
template<class T, class... Args>
inline T& set_main_widget(Args&&... args)
{
auto widget = T::construct(forward<Args>(args)...);
set_main_widget(widget.ptr());
return *widget;
}
Widget* focused_widget() { return m_focused_widget; }
const Widget* focused_widget() const { return m_focused_widget; }
void set_focused_widget(Widget*);
void update();
void update(const Gfx::Rect&);
void set_global_cursor_tracking_widget(Widget*);
Widget* global_cursor_tracking_widget() { return m_global_cursor_tracking_widget.ptr(); }
const Widget* global_cursor_tracking_widget() const { return m_global_cursor_tracking_widget.ptr(); }
void set_automatic_cursor_tracking_widget(Widget*);
Widget* automatic_cursor_tracking_widget() { return m_automatic_cursor_tracking_widget.ptr(); }
const Widget* automatic_cursor_tracking_widget() const { return m_automatic_cursor_tracking_widget.ptr(); }
Widget* hovered_widget() { return m_hovered_widget.ptr(); }
const Widget* hovered_widget() const { return m_hovered_widget.ptr(); }
void set_hovered_widget(Widget*);
Gfx::Bitmap* front_bitmap() { return m_front_bitmap.ptr(); }
Gfx::Bitmap* back_bitmap() { return m_back_bitmap.ptr(); }
Gfx::Size size_increment() const { return m_size_increment; }
void set_size_increment(const Gfx::Size&);
Gfx::Size base_size() const { return m_base_size; }
void set_base_size(const Gfx::Size&);
void set_override_cursor(StandardCursor);
void set_icon(const Gfx::Bitmap*);
void apply_icon();
const Gfx::Bitmap* icon() const { return m_icon.ptr(); }
Vector<Widget*> focusable_widgets() const;
virtual void save_to(AK::JsonObject&) override;
void schedule_relayout();
static void for_each_window(Badge<WindowServerConnection>, Function<void(Window&)>);
static void update_all_windows(Badge<WindowServerConnection>);
void notify_state_changed(Badge<WindowServerConnection>, bool minimized, bool occluded);
virtual bool is_visible_for_timer_purposes() const override { return m_visible_for_timer_purposes; }
Action* action_for_key_event(const KeyEvent&);
void did_remove_widget(Badge<Widget>, const Widget&);
Window* find_parent_window();
protected:
Window(Core::Object* parent = nullptr);
virtual void wm_event(WMEvent&);
private:
virtual bool is_window() const override final { return true; }
RefPtr<Gfx::Bitmap> create_backing_bitmap(const Gfx::Size&);
RefPtr<Gfx::Bitmap> create_shared_bitmap(Gfx::BitmapFormat, const Gfx::Size&);
void set_current_backing_bitmap(Gfx::Bitmap&, bool flush_immediately = false);
void flip(const Vector<Gfx::Rect, 32>& dirty_rects);
void force_update();
RefPtr<Gfx::Bitmap> m_front_bitmap;
RefPtr<Gfx::Bitmap> m_back_bitmap;
RefPtr<Gfx::Bitmap> m_icon;
int m_window_id { 0 };
float m_opacity_when_windowless { 1.0f };
RefPtr<Widget> m_main_widget;
WeakPtr<Widget> m_focused_widget;
WeakPtr<Widget> m_global_cursor_tracking_widget;
WeakPtr<Widget> m_automatic_cursor_tracking_widget;
WeakPtr<Widget> m_hovered_widget;
Gfx::Rect m_rect_when_windowless;
String m_title_when_windowless;
Vector<Gfx::Rect, 32> m_pending_paint_event_rects;
Gfx::Size m_size_increment;
Gfx::Size m_base_size;
Color m_background_color { Color::WarmGray };
WindowType m_window_type { WindowType::Normal };
StandardCursor m_override_cursor { StandardCursor::None };
bool m_is_active { false };
bool m_has_alpha_channel { false };
bool m_double_buffering_enabled { true };
bool m_modal { false };
bool m_resizable { true };
bool m_minimizable { true };
bool m_fullscreen { false };
bool m_show_titlebar { true };
bool m_layout_pending { false };
bool m_visible_for_timer_purposes { true };
bool m_visible { false };
};
}
template<>
inline bool Core::is<GUI::Window>(const Core::Object& object)
{
return object.is_window();
}
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