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Applets/Keymap: Repaint applet on demand only

Browse source 
Instead of poking into the the applet window backing store whenever
the keymap changes, we now drive the GUI updates properly via
update() and paint_event().

This fixes an issue where changing the system font would cause a
"ghosting" effect in the keymap applet.
This commit is contained in:
Andreas Kling 2023-03-03 22:46:01 +01:00
parent 66c04b98f1
commit 5979ce8316
3 changed files with 28 additions and 28 deletions
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23
Userland/Applets/Keymap/KeymapStatusWidget.cpp
View file

@ -1,5 +1,6 @@
/*
* Copyright (c) 2022, the SerenityOS developers.
* Copyright (c) 2023, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -8,10 +9,13 @@
#include <LibGUI/Action.h>
#include <LibGUI/ActionGroup.h>
#include <LibGUI/ConnectionToWindowManagerServer.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Painter.h>
#include <LibGUI/Process.h>
#include <LibGfx/Point.h>
#include <LibKeyboard/CharacterMap.h>
KeymapStatusWidget::KeymapStatusWidget() = default;
KeymapStatusWidget::~KeymapStatusWidget() = default;
void KeymapStatusWidget::mousedown_event(GUI::MouseEvent& event)
{
@ -59,15 +63,16 @@ ErrorOr<void> KeymapStatusWidget::refresh_menu()
return {};
}
void KeymapStatusWidget::set_current_keymap(DeprecatedString const& keymap, ClearBackground clear_background)
void KeymapStatusWidget::set_current_keymap(DeprecatedString const& keymap)
{
if (clear_background == ClearBackground::Yes) {
GUI::Painter painter(*this);
painter.clear_rect(rect(), Color::Transparent);
}
m_current_keymap = keymap;
set_tooltip(keymap);
set_text(keymap.substring(0, 2));
}
void KeymapStatusWidget::paint_event(GUI::PaintEvent& event)
{
GUI::Painter painter(*this);
painter.add_clip_rect(event.rect());
painter.clear_rect(event.rect(), Gfx::Color::Transparent);
painter.draw_text(rect(), m_current_keymap.substring_view(0, 2), Gfx::TextAlignment::Center);
}

28
Userland/Applets/Keymap/KeymapStatusWidget.h
View file

@ -1,34 +1,32 @@
/*
* Copyright (c) 2022, the SerenityOS developers.
* Copyright (c) 2023, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibCore/FileWatcher.h>
#include <LibGUI/ActionGroup.h>
#include <LibGUI/Label.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Window.h>
#include <LibGUI/Widget.h>
enum class ClearBackground {
No,
Yes
};
class KeymapStatusWidget : public GUI::Label {
class KeymapStatusWidget final : public GUI::Widget {
C_OBJECT(KeymapStatusWidget);
virtual void mousedown_event(GUI::MouseEvent& event) override;
void set_current_keymap(DeprecatedString const& keymap, ClearBackground clear_background = ClearBackground::Yes);
public:
virtual ~KeymapStatusWidget() override;
void set_current_keymap(DeprecatedString const& keymap);
private:
RefPtr<GUI::Menu> m_context_menu;
DeprecatedString m_current_keymap;
KeymapStatusWidget();
virtual void paint_event(GUI::PaintEvent&) override;
virtual void mousedown_event(GUI::MouseEvent&) override;
ErrorOr<void> refresh_menu();
RefPtr<GUI::Menu> m_context_menu;
DeprecatedString m_current_keymap;
GUI::ActionGroup m_keymaps_group;
};

5
Userland/Applets/Keymap/KeymapStatusWindow.cpp
View file

@ -6,8 +6,6 @@
*/
#include "KeymapStatusWindow.h"
#include <LibGUI/Painter.h>
#include <LibGUI/Process.h>
#include <LibKeyboard/CharacterMap.h>
KeymapStatusWindow::KeymapStatusWindow()
@ -17,8 +15,7 @@ KeymapStatusWindow::KeymapStatusWindow()
m_status_widget = set_main_widget<KeymapStatusWidget>().release_value_but_fixme_should_propagate_errors();
auto current_keymap = MUST(Keyboard::CharacterMap::fetch_system_map());
auto current_keymap_name = current_keymap.character_map_name();
m_status_widget->set_current_keymap(current_keymap_name, ClearBackground::No);
m_status_widget->set_current_keymap(current_keymap.character_map_name());
}
void KeymapStatusWindow::wm_event(GUI::WMEvent& event)