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31a2f10927
We shouldn't use the title stripe or title shadow colors to determine whether the frame itself is going to have alpha channels or not. This caused e.g. the classic theme's window frame to be rendered as transparency just because the stripe color had an alpha channel of 0.
61 lines
2.8 KiB
C++
61 lines
2.8 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibGfx/Color.h>
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#include <LibGfx/WindowTheme.h>
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namespace Gfx {
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class ClassicWindowTheme final : public WindowTheme {
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public:
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ClassicWindowTheme();
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virtual ~ClassicWindowTheme() override;
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virtual void paint_normal_frame(Painter& painter, WindowState window_state, const IntRect& window_rect, const StringView& window_title, const Bitmap& icon, const Palette& palette, const IntRect& leftmost_button_rect, int menu_row_count, bool window_modified) const override;
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virtual void paint_tool_window_frame(Painter&, WindowState, const IntRect& window_rect, const StringView& title, const Palette&, const IntRect& leftmost_button_rect) const override;
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virtual void paint_notification_frame(Painter&, const IntRect& window_rect, const Palette&, const IntRect& close_button_rect) const override;
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virtual int titlebar_height(WindowType, const Palette&) const override;
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virtual IntRect titlebar_rect(WindowType, const IntRect& window_rect, const Palette&) const override;
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virtual IntRect titlebar_icon_rect(WindowType, const IntRect& window_rect, const Palette&) const override;
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virtual IntRect titlebar_text_rect(WindowType, const IntRect& window_rect, const Palette&) const override;
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virtual IntRect menubar_rect(WindowType, const IntRect& window_rect, const Palette&, int menu_row_count) const override;
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virtual IntRect frame_rect_for_window(WindowType, const IntRect& window_rect, const Palette&, int menu_row_count) const override;
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virtual Vector<IntRect> layout_buttons(WindowType, const IntRect& window_rect, const Palette&, size_t buttons) const override;
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virtual bool is_simple_rect_frame() const override { return true; }
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virtual bool frame_uses_alpha(WindowState state, const Palette& palette) const override
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{
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return compute_frame_colors(state, palette).uses_alpha();
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}
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virtual float frame_alpha_hit_threshold(WindowState) const override { return 1.0f; }
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private:
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struct FrameColors {
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Color title_color;
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Color border_color;
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Color border_color2;
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Color title_stripes_color;
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Color title_shadow_color;
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bool uses_alpha() const
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{
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// We don't care about the title_stripes_color or title_shadow_color alpha channels because they are
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// effectively rendered on top of the borders and don't mean whether the frame itself atually has
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// any alpha channels that would require the entire frame to be rendered as transparency.
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return title_color.alpha() != 0xff || border_color.alpha() != 0xff || border_color2.alpha() != 0xff;
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}
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};
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FrameColors compute_frame_colors(WindowState, const Palette&) const;
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};
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}
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