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https://github.com/RGBCube/serenity
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0ce4b9d7db
This implements simple window shadows around most windows, including tooltips. Because this method uses a bitmap for the shadow bits, it is limited to rectangular window frames. For non-rectangular window frames we'll need to implement a more sophisticated algorithm.
119 lines
3.9 KiB
C++
119 lines
3.9 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/Forward.h>
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#include <AK/NonnullOwnPtrVector.h>
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#include <AK/RefPtr.h>
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#include <LibCore/Forward.h>
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#include <LibGfx/Forward.h>
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#include <LibGfx/WindowTheme.h>
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namespace WindowServer {
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class Button;
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class MouseEvent;
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class Window;
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class WindowFrame {
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public:
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WindowFrame(Window&);
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~WindowFrame();
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Gfx::IntRect rect() const;
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Gfx::IntRect render_rect() const;
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void paint(Gfx::Painter&, const Gfx::IntRect&);
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void render(Gfx::Painter&);
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void render_to_cache();
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void on_mouse_event(const MouseEvent&);
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void notify_window_rect_changed(const Gfx::IntRect& old_rect, const Gfx::IntRect& new_rect);
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void invalidate_title_bar();
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void invalidate(Gfx::IntRect relative_rect);
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Gfx::IntRect title_bar_rect() const;
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Gfx::IntRect title_bar_icon_rect() const;
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Gfx::IntRect title_bar_text_rect() const;
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void did_set_maximized(Badge<Window>, bool);
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void layout_buttons();
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void set_button_icons();
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void start_flash_animation();
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bool has_alpha_channel() const { return m_has_alpha_channel || frame_has_alpha(); }
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void set_has_alpha_channel(bool value) { m_has_alpha_channel = value; }
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void set_opacity(float);
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float opacity() const { return m_opacity; }
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bool is_opaque() const
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{
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if (opacity() < 1.0f)
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return false;
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if (has_alpha_channel())
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return false;
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return true;
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}
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void set_dirty()
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{
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m_dirty = true;
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}
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private:
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void paint_simple_rect_shadow(Gfx::Painter&, const Gfx::IntRect&, const Gfx::Bitmap&) const;
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void paint_notification_frame(Gfx::Painter&);
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void paint_normal_frame(Gfx::Painter&);
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Gfx::Bitmap* window_shadow() const;
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bool frame_has_alpha() const;
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Gfx::IntRect inflated_for_shadow(const Gfx::IntRect&) const;
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Gfx::Bitmap* inflate_for_shadow(Gfx::IntRect&, Gfx::IntPoint&) const;
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Gfx::WindowTheme::WindowState window_state_for_theme() const;
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Window& m_window;
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NonnullOwnPtrVector<Button> m_buttons;
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Button* m_close_button { nullptr };
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Button* m_maximize_button { nullptr };
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Button* m_minimize_button { nullptr };
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Gfx::IntPoint m_shadow_offset {};
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RefPtr<Gfx::Bitmap> m_top_bottom;
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RefPtr<Gfx::Bitmap> m_left_right;
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int m_bottom_y { 0 }; // y-offset in m_top_bottom for the bottom half
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int m_right_x { 0 }; // x-offset in m_left_right for the right half
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RefPtr<Core::Timer> m_flash_timer;
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size_t m_flash_counter { 0 };
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float m_opacity { 1 };
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bool m_has_alpha_channel { false };
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bool m_dirty { false };
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};
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}
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