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LibGUI+WindowServer: Add support for GWidget tooltips.

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Any GWidget can have a tooltip and it will automatically pop up below the
center of the widget when hovered. GActions added to GToolBars will use
the action text() as their tooltip automagically. :^)
This commit is contained in:
Andreas Kling 2019-04-08 18:58:44 +02:00
parent 3e175c9a96
commit 7f2eeb0b35
15 changed files with 136 additions and 27 deletions
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47
LibGUI/GApplication.cpp
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@ -2,6 +2,10 @@
#include <LibGUI/GEventLoop.h>
#include <LibGUI/GMenuBar.h>
#include <LibGUI/GAction.h>
#include <LibGUI/GWindow.h>
#include <LibGUI/GLabel.h>
#include <LibGUI/GPainter.h>
#include <WindowServer/WSAPITypes.h>
static GApplication* s_the;
@ -65,3 +69,46 @@ GAction* GApplication::action_for_key_event(const GKeyEvent& event)
return nullptr;
return (*it).value;
}
class GApplication::TooltipWindow final : public GWindow {
public:
TooltipWindow()
{
set_title("Tooltip");
set_window_type(GWindowType::Tooltip);
m_label = new GLabel;
m_label->set_background_color(Color::from_rgb(0xdac7b5));
m_label->set_fill_with_background_color(true);
m_label->set_frame_thickness(1);
m_label->set_frame_shape(GFrame::Shape::Container);
m_label->set_frame_shadow(GFrame::Shadow::Plain);
set_main_widget(m_label);
}
void set_tooltip(const String& tooltip)
{
// FIXME: Add some kind of GLabel auto-sizing feature.
int text_width = m_label->font().width(tooltip);
set_rect(100, 100, text_width + 10, m_label->font().glyph_height() + 8);
m_label->set_text(tooltip);
}
GLabel* m_label { nullptr };
};
void GApplication::show_tooltip(const String& tooltip, const Point& screen_location)
{
if (!m_tooltip_window) {
m_tooltip_window = new TooltipWindow;
m_tooltip_window->set_double_buffering_enabled(false);
}
m_tooltip_window->set_tooltip(tooltip);
m_tooltip_window->move_to(screen_location);
m_tooltip_window->show();
}
void GApplication::hide_tooltip()
{
if (m_tooltip_window)
m_tooltip_window->hide();
}