Services: Move to Userland/Services/

Userland/Services/Taskbar/TaskbarButton.cpp

@@ -0,0 +1,162 @@
+/*
+ * 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.
+ */
+
+#include "TaskbarButton.h"
+#include "WindowList.h"
+#include <LibGUI/Action.h>
+#include <LibGUI/Painter.h>
+#include <LibGUI/WindowServerConnection.h>
+#include <LibGfx/Font.h>
+#include <LibGfx/FontDatabase.h>
+#include <LibGfx/Palette.h>
+#include <LibGfx/StylePainter.h>
+
+TaskbarButton::TaskbarButton(const WindowIdentifier& identifier)
+    : m_identifier(identifier)
+{
+}
+
+TaskbarButton::~TaskbarButton()
+{
+}
+
+void TaskbarButton::context_menu_event(GUI::ContextMenuEvent&)
+{
+    GUI::WindowServerConnection::the().post_message(Messages::WindowServer::WM_PopupWindowMenu(m_identifier.client_id(), m_identifier.window_id(), screen_relative_rect().location()));
+}
+
+void TaskbarButton::update_taskbar_rect()
+{
+    GUI::WindowServerConnection::the().post_message(
+        Messages::WindowServer::WM_SetWindowTaskbarRect(
+            m_identifier.client_id(),
+            m_identifier.window_id(),
+            screen_relative_rect()));
+}
+
+void TaskbarButton::clear_taskbar_rect()
+{
+    GUI::WindowServerConnection::the().post_message(
+        Messages::WindowServer::WM_SetWindowTaskbarRect(
+            m_identifier.client_id(),
+            m_identifier.window_id(),
+            {}));
+}
+
+void TaskbarButton::resize_event(GUI::ResizeEvent& event)
+{
+    update_taskbar_rect();
+    return GUI::Button::resize_event(event);
+}
+
+static void paint_custom_progress_bar(GUI::Painter& painter, const Gfx::IntRect& rect, const Gfx::IntRect& text_rect, const Palette& palette, int min, int max, int value, const StringView& text, const Gfx::Font& font, Gfx::TextAlignment text_alignment)
+{
+    float range_size = max - min;
+    float progress = (value - min) / range_size;
+    float progress_width = progress * rect.width();
+
+    Gfx::IntRect progress_rect { rect.x(), rect.y(), (int)progress_width, rect.height() };
+
+    {
+        Gfx::PainterStateSaver saver(painter);
+        painter.add_clip_rect(progress_rect);
+
+        Color start_color = palette.active_window_border1();
+        Color end_color = palette.active_window_border2();
+        painter.fill_rect_with_gradient(rect, start_color, end_color);
+
+        if (!text.is_null()) {
+            painter.draw_text(text_rect.translated(1, 1), text, font, text_alignment, palette.base_text(), Gfx::TextElision::Right);
+            painter.draw_text(text_rect, text, font, text_alignment, palette.base_text().inverted(), Gfx::TextElision::Right);
+        }
+    }
+
+    Gfx::IntRect hole_rect { (int)progress_width, 0, (int)(rect.width() - progress_width), rect.height() };
+    hole_rect.move_by(rect.location());
+    hole_rect.set_right_without_resize(rect.right());
+    Gfx::PainterStateSaver saver(painter);
+    painter.add_clip_rect(hole_rect);
+    if (!text.is_null())
+        painter.draw_text(text_rect, text, font, text_alignment, palette.base_text(), Gfx::TextElision::Right);
+}
+
+void TaskbarButton::paint_event(GUI::PaintEvent& event)
+{
+    ASSERT(icon());
+    auto& icon = *this->icon();
+    auto& font = is_checked() ? Gfx::FontDatabase::default_bold_font() : this->font();
+    auto& window = WindowList::the().ensure_window(m_identifier);
+
+    GUI::Painter painter(*this);
+    painter.add_clip_rect(event.rect());
+
+    Gfx::StylePainter::paint_button(painter, rect(), palette(), button_style(), is_being_pressed(), is_hovered(), is_checked(), is_enabled());
+
+    if (text().is_empty())
+        return;
+
+    bool has_progress = window.progress() >= 0 && window.progress() <= 100;
+
+    auto content_rect = rect().shrunken(8, 2);
+    auto icon_location = content_rect.center().translated(-(icon.width() / 2), -(icon.height() / 2));
+    if (!text().is_empty())
+        icon_location.set_x(content_rect.x());
+
+    if (!text().is_empty()) {
+        content_rect.move_by(icon.width() + 4, 0);
+        content_rect.set_width(content_rect.width() - icon.width() - 4);
+    }
+
+    Gfx::IntRect text_rect { 0, 0, font.width(text()), font.glyph_height() };
+    if (text_rect.width() > content_rect.width())
+        text_rect.set_width(content_rect.width());
+    text_rect.align_within(content_rect, text_alignment());
+
+    if (is_being_pressed() || is_checked()) {
+        text_rect.move_by(1, 1);
+        icon_location.move_by(1, 1);
+    }
+
+    if (has_progress) {
+        auto adjusted_rect = rect().shrunken(4, 4);
+        if (is_being_pressed() || is_checked()) {
+            adjusted_rect.set_height(adjusted_rect.height() + 1);
+        }
+        paint_custom_progress_bar(painter, adjusted_rect, text_rect, palette(), 0, 100, window.progress(), text(), font, text_alignment());
+    }
+
+    if (is_enabled()) {
+        if (is_hovered())
+            painter.blit_brightened(icon_location, icon, icon.rect());
+        else
+            painter.blit(icon_location, icon, icon.rect());
+    } else {
+        painter.blit_disabled(icon_location, icon, icon.rect(), palette());
+    }
+
+    if (!has_progress)
+        paint_text(painter, text_rect, font, text_alignment());
+}