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		7dadb75e28
		
	
	
	
	
		
			
			When clicking the window icon, we now pop up the window menu at the bottom left of the icon, no matter where you clicked it. Right-clicking the title bar still pops up at the event position.
		
			
				
	
	
		
			412 lines
		
	
	
	
		
			15 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			412 lines
		
	
	
	
		
			15 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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| 
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| #include <AK/Badge.h>
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| #include <LibGfx/CharacterBitmap.h>
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| #include <LibGfx/Font.h>
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| #include <LibGfx/Painter.h>
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| #include <LibGfx/StylePainter.h>
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| #include <WindowServer/Button.h>
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| #include <WindowServer/Compositor.h>
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| #include <WindowServer/Event.h>
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| #include <WindowServer/Window.h>
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| #include <WindowServer/WindowFrame.h>
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| #include <WindowServer/WindowManager.h>
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| 
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| namespace WindowServer {
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| 
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| static const int window_titlebar_height = 19;
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| 
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| static const char* s_close_button_bitmap_data = {
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|     "##    ##"
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|     "###  ###"
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|     " ###### "
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|     "  ####  "
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|     "  ####  "
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|     " ###### "
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|     "###  ###"
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|     "##    ##"
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|     "        "
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| };
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| 
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| static Gfx::CharacterBitmap* s_close_button_bitmap;
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| static const int s_close_button_bitmap_width = 8;
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| static const int s_close_button_bitmap_height = 9;
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| 
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| static const char* s_minimize_button_bitmap_data = {
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|     "        "
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|     "        "
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|     "        "
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|     " ###### "
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|     "  ####  "
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|     "   ##   "
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|     "        "
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|     "        "
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|     "        "
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| };
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| 
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| static Gfx::CharacterBitmap* s_minimize_button_bitmap;
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| static const int s_minimize_button_bitmap_width = 8;
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| static const int s_minimize_button_bitmap_height = 9;
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| 
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| static const char* s_maximize_button_bitmap_data = {
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|     "        "
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|     "        "
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|     "        "
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|     "   ##   "
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|     "  ####  "
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|     " ###### "
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|     "        "
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|     "        "
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|     "        "
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| };
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| 
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| static Gfx::CharacterBitmap* s_maximize_button_bitmap;
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| static const int s_maximize_button_bitmap_width = 8;
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| static const int s_maximize_button_bitmap_height = 9;
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| 
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| static const char* s_unmaximize_button_bitmap_data = {
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|     "        "
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|     "   ##   "
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|     "  ####  "
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|     " ###### "
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|     "        "
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|     " ###### "
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|     "  ####  "
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|     "   ##   "
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|     "        "
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| };
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| 
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| static Gfx::CharacterBitmap* s_unmaximize_button_bitmap;
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| static const int s_unmaximize_button_bitmap_width = 8;
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| static const int s_unmaximize_button_bitmap_height = 9;
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| 
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| WindowFrame::WindowFrame(Window& window)
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|     : m_window(window)
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| {
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|     if (!s_close_button_bitmap)
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|         s_close_button_bitmap = &Gfx::CharacterBitmap::create_from_ascii(s_close_button_bitmap_data, s_close_button_bitmap_width, s_close_button_bitmap_height).leak_ref();
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| 
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|     if (!s_minimize_button_bitmap)
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|         s_minimize_button_bitmap = &Gfx::CharacterBitmap::create_from_ascii(s_minimize_button_bitmap_data, s_minimize_button_bitmap_width, s_minimize_button_bitmap_height).leak_ref();
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| 
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|     if (!s_maximize_button_bitmap)
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|         s_maximize_button_bitmap = &Gfx::CharacterBitmap::create_from_ascii(s_maximize_button_bitmap_data, s_maximize_button_bitmap_width, s_maximize_button_bitmap_height).leak_ref();
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| 
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|     if (!s_unmaximize_button_bitmap)
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|         s_unmaximize_button_bitmap = &Gfx::CharacterBitmap::create_from_ascii(s_unmaximize_button_bitmap_data, s_unmaximize_button_bitmap_width, s_unmaximize_button_bitmap_height).leak_ref();
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| 
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|     m_buttons.append(make<Button>(*this, *s_close_button_bitmap, [this](auto&) {
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|         m_window.request_close();
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|     }));
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| 
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|     if (window.is_resizable()) {
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|         auto button = make<Button>(*this, *s_maximize_button_bitmap, [this](auto&) {
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|             m_window.set_maximized(!m_window.is_maximized());
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|         });
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|         m_maximize_button = button.ptr();
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|         m_buttons.append(move(button));
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|     }
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| 
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|     if (window.is_minimizable()) {
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|         auto button = make<Button>(*this, *s_minimize_button_bitmap, [this](auto&) {
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|             m_window.set_minimized(true);
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|         });
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|         m_minimize_button = button.ptr();
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|         m_buttons.append(move(button));
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|     }
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| }
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| 
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| WindowFrame::~WindowFrame()
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| {
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| }
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| 
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| void WindowFrame::did_set_maximized(Badge<Window>, bool maximized)
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| {
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|     ASSERT(m_maximize_button);
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|     m_maximize_button->set_bitmap(maximized ? *s_unmaximize_button_bitmap : *s_maximize_button_bitmap);
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| }
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| 
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| Gfx::Rect WindowFrame::title_bar_rect() const
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| {
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|     if (m_window.type() == WindowType::Notification)
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|         return { m_window.width() + 3, 3, window_titlebar_height, m_window.height() };
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|     return { 4, 4, m_window.width(), window_titlebar_height };
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| }
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| 
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| Gfx::Rect WindowFrame::title_bar_icon_rect() const
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| {
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|     auto titlebar_rect = title_bar_rect();
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|     return {
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|         titlebar_rect.x() + 1,
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|         titlebar_rect.y() + 2,
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|         16,
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|         titlebar_rect.height(),
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|     };
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| }
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| 
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| Gfx::Rect WindowFrame::title_bar_text_rect() const
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| {
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|     auto titlebar_rect = title_bar_rect();
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|     auto titlebar_icon_rect = title_bar_icon_rect();
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|     return {
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|         titlebar_rect.x() + 2 + titlebar_icon_rect.width() + 2,
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|         titlebar_rect.y(),
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|         titlebar_rect.width() - 4 - titlebar_icon_rect.width() - 2,
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|         titlebar_rect.height()
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|     };
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| }
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| 
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| WindowFrame::FrameColors WindowFrame::compute_frame_colors() const
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| {
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|     auto& wm = WindowManager::the();
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|     auto palette = wm.palette();
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|     if (&m_window == wm.m_highlight_window)
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|         return { palette.highlight_window_title(), palette.highlight_window_border1(), palette.highlight_window_border2() };
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|     if (&m_window == wm.m_move_window)
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|         return { palette.moving_window_title(), palette.moving_window_border1(), palette.moving_window_border2() };
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|     if (&m_window == wm.m_active_window)
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|         return { palette.active_window_title(), palette.active_window_border1(), palette.active_window_border2() };
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|     return { palette.inactive_window_title(), palette.inactive_window_border1(), palette.inactive_window_border2() };
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| }
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| 
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| void WindowFrame::paint_notification_frame(Gfx::Painter& painter)
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| {
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|     auto palette = WindowManager::the().palette();
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|     Gfx::Rect outer_rect = { {}, rect().size() };
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| 
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|     Gfx::StylePainter::paint_window_frame(painter, outer_rect, palette);
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| 
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|     auto titlebar_rect = title_bar_rect();
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|     painter.fill_rect_with_gradient(Gfx::Orientation::Vertical, titlebar_rect, palette.active_window_border1(), palette.active_window_border2());
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| 
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|     int stripe_top = m_buttons.last().relative_rect().bottom() + 4;
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|     int stripe_bottom = m_window.height() - 3;
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|     if (stripe_top && stripe_bottom && stripe_top < stripe_bottom) {
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|         for (int i = 2; i <= window_titlebar_height - 2; i += 2) {
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|             painter.draw_line({ titlebar_rect.x() + i, stripe_top }, { titlebar_rect.x() + i, stripe_bottom }, palette.active_window_border1());
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|         }
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|     }
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| }
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| 
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| void WindowFrame::paint_normal_frame(Gfx::Painter& painter)
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| {
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|     auto palette = WindowManager::the().palette();
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|     auto& window = m_window;
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|     Gfx::Rect outer_rect = { {}, rect().size() };
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| 
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|     Gfx::StylePainter::paint_window_frame(painter, outer_rect, palette);
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| 
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|     if (!window.show_titlebar())
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|         return;
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| 
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|     auto titlebar_rect = title_bar_rect();
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|     auto titlebar_icon_rect = title_bar_icon_rect();
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|     auto titlebar_inner_rect = title_bar_text_rect();
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|     auto titlebar_title_rect = titlebar_inner_rect;
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|     titlebar_title_rect.set_width(Gfx::Font::default_bold_font().width(window.title()));
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| 
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|     auto [title_color, border_color, border_color2] = compute_frame_colors();
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| 
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|     auto& wm = WindowManager::the();
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|     painter.draw_line(titlebar_rect.bottom_left().translated(0, 1), titlebar_rect.bottom_right().translated(0, 1), palette.button());
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|     painter.draw_line(titlebar_rect.bottom_left().translated(0, 2), titlebar_rect.bottom_right().translated(0, 2), palette.button());
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| 
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|     auto leftmost_button_rect = m_buttons.is_empty() ? Gfx::Rect() : m_buttons.last().relative_rect();
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| 
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|     painter.fill_rect_with_gradient(titlebar_rect, border_color, border_color2);
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| 
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|     int stripe_left = titlebar_title_rect.right() + 4;
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|     int stripe_right = leftmost_button_rect.left() - 3;
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|     if (stripe_left && stripe_right && stripe_left < stripe_right) {
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|         for (int i = 2; i <= titlebar_inner_rect.height() - 2; i += 2) {
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|             painter.draw_line({ stripe_left, titlebar_inner_rect.y() + i }, { stripe_right, titlebar_inner_rect.y() + i }, border_color);
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|         }
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|     }
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| 
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|     auto clipped_title_rect = titlebar_title_rect;
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|     clipped_title_rect.set_width(stripe_right - clipped_title_rect.x());
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|     if (!clipped_title_rect.is_empty()) {
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|         painter.draw_text(clipped_title_rect.translated(1, 2), window.title(), wm.window_title_font(), Gfx::TextAlignment::CenterLeft, border_color.darkened(0.4), Gfx::TextElision::Right);
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|         // FIXME: The translated(0, 1) wouldn't be necessary if we could center text based on its baseline.
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|         painter.draw_text(clipped_title_rect.translated(0, 1), window.title(), wm.window_title_font(), Gfx::TextAlignment::CenterLeft, title_color, Gfx::TextElision::Right);
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|     }
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| 
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|     painter.blit(titlebar_icon_rect.location(), window.icon(), window.icon().rect());
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| }
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| 
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| void WindowFrame::paint(Gfx::Painter& painter)
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| {
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|     Gfx::PainterStateSaver saver(painter);
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|     painter.translate(rect().location());
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| 
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|     if (m_window.type() == WindowType::Notification)
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|         paint_notification_frame(painter);
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|     else if (m_window.type() == WindowType::Normal)
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|         paint_normal_frame(painter);
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|     else
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|         return;
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| 
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|     for (auto& button : m_buttons) {
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|         button.paint(painter);
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|     }
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| }
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| 
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| static Gfx::Rect frame_rect_for_window(Window& window, const Gfx::Rect& rect)
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| {
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|     auto type = window.type();
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|     auto offset = !window.show_titlebar() ? (window_titlebar_height + 1) : 0;
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| 
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|     switch (type) {
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|     case WindowType::Normal:
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|         return {
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|             rect.x() - 4,
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|             rect.y() - window_titlebar_height - 6 + offset,
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|             rect.width() + 8,
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|             rect.height() + 10 + window_titlebar_height - offset
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|         };
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|     case WindowType::Notification:
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|         return {
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|             rect.x() - 3,
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|             rect.y() - 3,
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|             rect.width() + 6 + window_titlebar_height,
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|             rect.height() + 6
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|         };
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|     default:
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|         return rect;
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|     }
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| }
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| 
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| static Gfx::Rect frame_rect_for_window(Window& window)
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| {
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|     return frame_rect_for_window(window, window.rect());
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| }
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| 
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| Gfx::Rect WindowFrame::rect() const
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| {
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|     return frame_rect_for_window(m_window);
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| }
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| 
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| void WindowFrame::invalidate_title_bar()
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| {
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|     WindowManager::the().invalidate(title_bar_rect().translated(rect().location()));
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| }
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| 
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| void WindowFrame::notify_window_rect_changed(const Gfx::Rect& old_rect, const Gfx::Rect& new_rect)
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| {
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|     int window_button_width = 15;
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|     int window_button_height = 15;
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|     int pos;
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|     if (m_window.type() == WindowType::Notification)
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|         pos = title_bar_rect().top() + 2;
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|     else
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|         pos = title_bar_text_rect().right() + 1;
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| 
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|     for (auto& button : m_buttons) {
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|         if (m_window.type() == WindowType::Notification) {
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|             Gfx::Rect rect { 0, pos, window_button_width, window_button_height };
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|             rect.center_horizontally_within(title_bar_rect());
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|             button.set_relative_rect(rect);
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|             pos += window_button_width;
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|         } else {
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|             pos -= window_button_width;
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|             Gfx::Rect rect { pos, 0, window_button_width, window_button_height };
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|             rect.center_vertically_within(title_bar_text_rect());
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|             button.set_relative_rect(rect);
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|         }
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|     }
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| 
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|     auto& wm = WindowManager::the();
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|     wm.invalidate(frame_rect_for_window(m_window, old_rect));
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|     wm.invalidate(frame_rect_for_window(m_window, new_rect));
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|     wm.notify_rect_changed(m_window, old_rect, new_rect);
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| }
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| 
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| void WindowFrame::on_mouse_event(const MouseEvent& event)
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| {
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|     ASSERT(!m_window.is_fullscreen());
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| 
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|     if (m_window.is_blocked_by_modal_window())
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|         return;
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| 
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|     auto& wm = WindowManager::the();
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|     if (m_window.type() != WindowType::Normal && m_window.type() != WindowType::Notification)
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|         return;
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| 
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|     if (m_window.type() == WindowType::Normal && event.type() == Event::MouseDown && (event.button() == MouseButton::Left || event.button() == MouseButton::Right) && title_bar_icon_rect().contains(event.position())) {
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|         wm.move_to_front_and_make_active(m_window);
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|         m_window.popup_window_menu(title_bar_icon_rect().bottom_left().translated(rect().location()));
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|         return;
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|     }
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| 
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|     // This is slightly hackish, but expand the title bar rect by two pixels downwards,
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|     // so that mouse events between the title bar and window contents don't act like
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|     // mouse events on the border.
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|     auto adjusted_title_bar_rect = title_bar_rect();
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|     adjusted_title_bar_rect.set_height(adjusted_title_bar_rect.height() + 2);
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| 
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|     if (adjusted_title_bar_rect.contains(event.position())) {
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|         wm.clear_resize_candidate();
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| 
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|         if (event.type() == Event::MouseDown)
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|             wm.move_to_front_and_make_active(m_window);
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| 
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|         for (auto& button : m_buttons) {
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|             if (button.relative_rect().contains(event.position()))
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|                 return button.on_mouse_event(event.translated(-button.relative_rect().location()));
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|         }
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|         if (event.type() == Event::MouseDown) {
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|             if (m_window.type() == WindowType::Normal && event.button() == MouseButton::Right) {
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|                 m_window.popup_window_menu(event.position().translated(rect().location()));
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|                 return;
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|             }
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|             if (m_window.is_movable() && event.button() == MouseButton::Left)
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|                 wm.start_window_move(m_window, event.translated(rect().location()));
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|         }
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|         return;
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|     }
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| 
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|     if (m_window.is_resizable() && event.type() == Event::MouseMove && event.buttons() == 0) {
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|         constexpr ResizeDirection direction_for_hot_area[3][3] = {
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|             { ResizeDirection::UpLeft, ResizeDirection::Up, ResizeDirection::UpRight },
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|             { ResizeDirection::Left, ResizeDirection::None, ResizeDirection::Right },
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|             { ResizeDirection::DownLeft, ResizeDirection::Down, ResizeDirection::DownRight },
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|         };
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|         Gfx::Rect outer_rect = { {}, rect().size() };
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|         ASSERT(outer_rect.contains(event.position()));
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|         int window_relative_x = event.x() - outer_rect.x();
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|         int window_relative_y = event.y() - outer_rect.y();
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|         int hot_area_row = min(2, window_relative_y / (outer_rect.height() / 3));
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|         int hot_area_column = min(2, window_relative_x / (outer_rect.width() / 3));
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|         wm.set_resize_candidate(m_window, direction_for_hot_area[hot_area_row][hot_area_column]);
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|         Compositor::the().invalidate_cursor();
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|         return;
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|     }
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| 
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|     if (m_window.is_resizable() && event.type() == Event::MouseDown && event.button() == MouseButton::Left)
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|         wm.start_window_resize(m_window, event.translated(rect().location()));
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| }
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| }
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