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Applications: Create a display properties manager
An interactive application to modify the current display settings, such as the current wallpaper as well as the screen resolution. Currently we're adding the resolutions ourselves, because there's currently no way to detect was resolutions the current display adapter supports (or at least I can't see one... Maybe VBE does and I'm stupid). It even comes with a very nice template'd `ItemList` that can support a vector of any type, which makes life much simpler.
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156
Applications/DisplayProperties/DisplayProperties.cpp
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156
Applications/DisplayProperties/DisplayProperties.cpp
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#include <AK/StringBuilder.h>
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#include <LibCore/CDirIterator.h>
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#include <LibGUI/GAction.h>
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#include <LibGUI/GApplication.h>
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#include <LibGUI/GBoxLayout.h>
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#include <LibGUI/GButton.h>
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#include <LibGUI/GDesktop.h>
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#include <LibGUI/GEventLoop.h>
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#include <LibGUI/GFileSystemModel.h>
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#include <LibGUI/GGroupBox.h>
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#include <LibGUI/GListView.h>
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#include <LibGUI/GScrollBar.h>
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#include <LibGUI/GSplitter.h>
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#include <LibGUI/GTabWidget.h>
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#include <LibGUI/GToolBar.h>
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#include <LibGUI/GWidget.h>
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#include <LibGUI/GWindow.h>
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#include <Servers/WindowServer/WSWindowManager.h>
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#include "DisplayProperties.h"
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#include "ItemListModel.h"
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DisplayPropertiesWidget::DisplayPropertiesWidget()
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: m_wm_config(CConfigFile::get_for_app("WindowManager"))
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{
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create_root_widget();
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create_frame();
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create_resolution_list();
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create_wallpaper_list();
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}
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void DisplayPropertiesWidget::create_resolution_list()
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{
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// TODO: Find a better way to get the default resolution
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m_resolutions.append({ 640, 480 });
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m_resolutions.append({ 800, 600 });
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m_resolutions.append({ 1024, 768 });
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m_resolutions.append({ 1280, 1024 });
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m_resolutions.append({ 1366, 768 });
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m_resolutions.append({ 1440, 900 });
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m_resolutions.append({ 1600, 900 });
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m_resolutions.append({ 1920, 1080 });
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m_resolutions.append({ 2560, 1080 });
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m_selected_resolution = m_resolutions.at(0);
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}
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void DisplayPropertiesWidget::create_root_widget()
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{
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m_root_widget = new GWidget;
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m_root_widget->set_layout(make<GBoxLayout>(Orientation::Vertical));
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m_root_widget->set_fill_with_background_color(true);
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m_root_widget->layout()->set_margins({ 4, 4, 4, 16 });
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}
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void DisplayPropertiesWidget::create_wallpaper_list()
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{
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CDirIterator iterator("/res/wallpapers/", CDirIterator::Flags::SkipDots);
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while (iterator.has_next())
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m_wallpapers.append(iterator.next_path());
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}
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void DisplayPropertiesWidget::create_frame()
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{
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auto* tab_widget = new GTabWidget(m_root_widget);
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// First, let's create the "Background" tab
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auto* background_splitter = new GSplitter(Orientation::Vertical, nullptr);
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tab_widget->add_widget("Wallpaper", background_splitter);
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auto* background_content = new GWidget(background_splitter);
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background_content->set_layout(make<GBoxLayout>(Orientation::Vertical));
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background_content->layout()->add_spacer();
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background_content->layout()->set_margins({ 4, 4, 4, 4 });
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auto* wallpaper_list = new GListView(background_content);
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wallpaper_list->set_background_color(Color::White);
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wallpaper_list->set_model(*ItemListModel<AK::String>::create(m_wallpapers));
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wallpaper_list->horizontal_scrollbar().set_visible(false);
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wallpaper_list->on_selection = [this](auto& index) {
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m_selected_wallpaper = m_wallpapers.at(index.row());
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};
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// Let's add the settings tab
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auto* settings_splitter = new GSplitter(Orientation::Vertical, nullptr);
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tab_widget->add_widget("Settings", settings_splitter);
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auto* settings_content = new GWidget(settings_splitter);
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settings_content->set_layout(make<GBoxLayout>(Orientation::Vertical));
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settings_content->layout()->add_spacer();
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settings_content->layout()->set_margins({ 4, 4, 4, 4 });
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auto* resolution_list = new GListView(settings_content);
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resolution_list->set_background_color(Color::White);
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resolution_list->set_model(*ItemListModel<Size>::create(m_resolutions));
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resolution_list->horizontal_scrollbar().set_visible(false);
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resolution_list->on_selection = [this](auto& index) {
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m_selected_resolution = m_resolutions.at(index.row());
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};
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// Add the apply and cancel buttons
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auto* bottom_widget = new GWidget(m_root_widget);
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bottom_widget->set_layout(make<GBoxLayout>(Orientation::Horizontal));
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bottom_widget->layout()->add_spacer();
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bottom_widget->set_size_policy(Orientation::Vertical, SizePolicy::Fixed);
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bottom_widget->set_preferred_size(1, 22);
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auto* apply_button = new GButton(bottom_widget);
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apply_button->set_text("Apply");
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apply_button->set_size_policy(Orientation::Vertical, SizePolicy::Fixed);
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apply_button->set_size_policy(Orientation::Horizontal, SizePolicy::Fixed);
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apply_button->set_preferred_size(60, 22);
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apply_button->on_click = [this, tab_widget](GButton&) {
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send_settings_to_window_server(tab_widget->get_active_tab());
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};
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auto* ok_button = new GButton(bottom_widget);
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ok_button->set_text("OK");
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ok_button->set_size_policy(Orientation::Vertical, SizePolicy::Fixed);
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ok_button->set_size_policy(Orientation::Horizontal, SizePolicy::Fixed);
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ok_button->set_preferred_size(60, 22);
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ok_button->on_click = [this, tab_widget](GButton&) {
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send_settings_to_window_server(tab_widget->get_active_tab());
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GApplication::the().quit();
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};
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auto* cancel_button = new GButton(bottom_widget);
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cancel_button->set_text("Cancel");
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cancel_button->set_size_policy(Orientation::Vertical, SizePolicy::Fixed);
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cancel_button->set_size_policy(Orientation::Horizontal, SizePolicy::Fixed);
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cancel_button->set_preferred_size(60, 22);
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cancel_button->on_click = [this](GButton&) {
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GApplication::the().quit();
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};
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}
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void DisplayPropertiesWidget::send_settings_to_window_server(int tab_index)
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{
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if (tab_index == TabIndices::Wallpaper) {
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StringBuilder builder;
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builder.append("/res/wallpapers/");
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builder.append(m_selected_wallpaper);
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GDesktop::the().set_wallpaper(builder.to_string());
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} else if (tab_index == TabIndices::Settings) {
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WSAPI_ClientMessage request;
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request.type = WSAPI_ClientMessage::Type::SetResolution;
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dbg() << "Attempting to set resolution " << m_selected_resolution;
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request.wm_conf.resolution = { m_selected_resolution.width(), m_selected_resolution.height() };
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auto response = GWindowServerConnection::the().sync_request(request, WSAPI_ServerMessage::Type::DidSetResolution);
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ASSERT(response.value == 1);
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} else {
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dbg() << "Invalid tab index " << tab_index;
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}
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}
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47
Applications/DisplayProperties/DisplayProperties.h
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47
Applications/DisplayProperties/DisplayProperties.h
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#pragma once
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#include <AK/AKString.h>
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#include <AK/RefPtr.h>
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#include <AK/Vector.h>
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#include <LibCore/CConfigFile.h>
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#include <LibDraw/Color.h>
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#include <LibDraw/Size.h>
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#include <LibGUI/GWidget.h>
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class DisplayPropertiesWidget final {
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public:
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enum class ButtonOperations {
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Ok,
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Apply,
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Cancel,
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};
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enum TabIndices {
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Wallpaper,
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Settings
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};
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public:
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DisplayPropertiesWidget();
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// Apply the settings to the Window Server
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void send_settings_to_window_server(int tabIndex);
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void create_frame();
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inline GWidget* get_root_widget() const { return m_root_widget; }
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private:
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void create_wallpaper_list();
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void create_resolution_list();
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void create_root_widget();
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private:
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String m_wallpaper_path;
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RefPtr<CConfigFile> m_wm_config;
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GWidget* m_root_widget { nullptr };
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Vector<Size> m_resolutions;
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Vector<String> m_wallpapers;
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Size m_selected_resolution;
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String m_selected_wallpaper;
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};
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54
Applications/DisplayProperties/ItemListModel.h
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54
Applications/DisplayProperties/ItemListModel.h
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#pragma once
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#include <AK/NonnullRefPtr.h>
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#include <AK/Vector.h>
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#include <LibGUI/GModel.h>
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template<typename T>
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class ItemListModel final : public GModel {
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public:
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static NonnullRefPtr<ItemListModel> create(Vector<T>& data) { return adopt(*new ItemListModel<T>(data)); }
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virtual ~ItemListModel() override {}
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virtual int row_count(const GModelIndex&) const override
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{
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return m_data.size();
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}
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virtual int column_count(const GModelIndex&) const override
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{
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return 1;
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}
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virtual String column_name(int) const override
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{
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return "Data";
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}
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virtual ColumnMetadata column_metadata(int) const override
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{
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return { 70, TextAlignment::CenterLeft };
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}
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virtual GVariant data(const GModelIndex& index, Role role = Role::Display) const override
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{
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if (role == Role::Display)
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return m_data.at(index.row());
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return {};
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}
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virtual void update() override
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{
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did_update();
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}
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private:
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explicit ItemListModel(Vector<T>& data)
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: m_data(data)
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{
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}
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Vector<T>& m_data;
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};
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9
Applications/DisplayProperties/Makefile
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9
Applications/DisplayProperties/Makefile
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include ../../Makefile.common
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OBJS = \
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DisplayProperties.o \
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main.o \
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APP = DisplayProperties
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include ../Makefile.common
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22
Applications/DisplayProperties/main.cpp
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Applications/DisplayProperties/main.cpp
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#include "DisplayProperties.h"
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#include <LibDraw/PNGLoader.h>
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#include <LibGUI/GApplication.h>
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#include <LibGUI/GBoxLayout.h>
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#include <LibGUI/GWidget.h>
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#include <LibGUI/GWindow.h>
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int main(int argc, char** argv)
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{
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GApplication app(argc, argv);
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DisplayPropertiesWidget instance;
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auto* window = new GWindow();
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window->set_title("Display Properties");
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window->resize(400, 448);
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window->set_resizable(false);
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window->set_main_widget(instance.get_root_widget());
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window->set_icon(load_png("/res/icons/16x16/app-display-properties.png"));
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window->show();
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return app.exec();
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}
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