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Terminal: Add ability to adjust the terminal's opacity.

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This commit is contained in:
Andreas Kling 2019-04-29 19:24:18 +02:00
parent 9c6be9b21e
commit 0ae475ff5b
3 changed files with 32 additions and 1 deletions
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8
Applications/Terminal/Terminal.cpp
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@ -882,3 +882,11 @@ void Terminal::update_cursor()
invalidate_cursor(); invalidate_cursor();
flush_dirty_lines(); flush_dirty_lines();
} }
void Terminal::set_opacity(float opacity)
{
if (m_opacity == opacity)
return;
m_opacity = opacity;
force_repaint();
}

2
Applications/Terminal/Terminal.h
View file

@ -24,6 +24,8 @@ public:
void apply_size_increments_to_window(GWindow&); void apply_size_increments_to_window(GWindow&);
void set_opacity(float);
private: private:
typedef Vector<unsigned, 4> ParamVector; typedef Vector<unsigned, 4> ParamVector;

23
Applications/Terminal/main.cpp
View file

@ -15,6 +15,7 @@
#include <LibGUI/GMenuBar.h> #include <LibGUI/GMenuBar.h>
#include <LibGUI/GAction.h> #include <LibGUI/GAction.h>
#include <LibGUI/GFontDatabase.h> #include <LibGUI/GFontDatabase.h>
#include <LibGUI/GSlider.h>
static void make_shell(int ptm_fd) static void make_shell(int ptm_fd)
{ {
@ -93,16 +94,36 @@ int main(int argc, char** argv)
window->set_should_exit_event_loop_on_close(true); window->set_should_exit_event_loop_on_close(true);
Terminal terminal(ptm_fd); Terminal terminal(ptm_fd);
window->set_has_alpha_channel(false); window->set_has_alpha_channel(true);
window->set_main_widget(&terminal); window->set_main_widget(&terminal);
window->move_to(300, 300); window->move_to(300, 300);
terminal.apply_size_increments_to_window(*window); terminal.apply_size_increments_to_window(*window);
window->show(); window->show();
window->set_icon_path("/res/icons/16x16/app-terminal.png"); window->set_icon_path("/res/icons/16x16/app-terminal.png");
auto* opacity_adjustment_window = new GWindow;
opacity_adjustment_window->set_title("Adjust opacity");
opacity_adjustment_window->set_rect(50, 50, 200, 100);
auto* slider = new GSlider(nullptr);
opacity_adjustment_window->set_main_widget(slider);
slider->set_fill_with_background_color(true);
slider->set_background_color(Color::LightGray);
slider->on_value_changed = [&terminal] (int value) {
float opacity = value / 100.0;
terminal.set_opacity(opacity);
};
slider->set_range(0, 100);
slider->set_value(80);
auto menubar = make<GMenuBar>(); auto menubar = make<GMenuBar>();
auto app_menu = make<GMenu>("Terminal"); auto app_menu = make<GMenu>("Terminal");
app_menu->add_action(GAction::create("Adjust opacity...", [opacity_adjustment_window] (const GAction&) {
opacity_adjustment_window->show();
}));
app_menu->add_action(GAction::create("Quit", { Mod_Alt, Key_F4 }, [] (const GAction&) { app_menu->add_action(GAction::create("Quit", { Mod_Alt, Key_F4 }, [] (const GAction&) {
dbgprintf("Terminal: Quit menu activated!\n"); dbgprintf("Terminal: Quit menu activated!\n");
GApplication::the().quit(0); GApplication::the().quit(0);