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LibGUI: Add and use Window::center_on_screen()

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Various applications were using the same slightly verbose code to center
themselves on the screen/desktop:

Gfx::IntRect window_rect { 0, 0, width, height };
window_rect.center_within(GUI::Desktop::the().rect());
window->set_rect(window_rect);

Which now becomes:

window->resize(width, height);
window->center_on_screen();
This commit is contained in:
Linus Groh 2020-08-15 16:32:11 +02:00 • committed by Andreas Kling
parent 5f724b6ca1
commit 0cab3bca2f
6 changed files with 18 additions and 16 deletions
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7
Applications/Welcome/main.cpp
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@ -35,7 +35,6 @@
#include <LibGUI/Application.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
#include <LibGUI/Desktop.h>
#include <LibGUI/ImageWidget.h>
#include <LibGUI/Label.h>
#include <LibGUI/MessageBox.h>
@ -156,10 +155,8 @@ int main(int argc, char** argv)
auto window = GUI::Window::construct();
window->set_title("Welcome");
Gfx::IntRect window_rect { 0, 0, 640, 360 };
window_rect.center_within(GUI::Desktop::the().rect());
window->set_resizable(true);
window->set_rect(window_rect);
window->resize(640, 360);
window->center_on_screen();
auto& background = window->set_main_widget<BackgroundWidget>();
background.set_fill_with_background_color(false);