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WindowServer, LibGUI: Variable minimum window sizes

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Minimum window size can now be customised and set at runtime via the
SetWindowMinimumSize WindowServer message and the set_minimum_size
LibGUI::Window method. The default minimum size remains at 50x50.

Some behind-the-scenes mechanics had to be added to LibGUI::Window to
ensure that the minimum size is remembered if set before the window is
shown. WindowServer sends a resize event to the client if it requests a
size on create that's smaller than it's minimum size.
This commit is contained in:
Nick Vella 2021-02-16 00:59:43 +11:00 • committed by Andreas Kling
parent dea0d22ab3
commit 15c1f7a40d
7 changed files with 130 additions and 8 deletions
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26
Userland/Libraries/LibGUI/Window.cpp
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@ -150,6 +150,7 @@ void Window::show()
m_alpha_hit_threshold,
m_base_size,
m_size_increment,
m_minimum_size_when_windowless,
m_resize_aspect_ratio,
(i32)m_window_type,
m_title_when_windowless,
@ -259,6 +260,23 @@ void Window::set_rect(const Gfx::IntRect& a_rect)
m_main_widget->resize(window_rect.size());
}
Gfx::IntSize Window::minimum_size() const
{
if (!is_visible())
return m_minimum_size_when_windowless;
return WindowServerConnection::the().send_sync<Messages::WindowServer::GetWindowMinimumSize>(m_window_id)->size();
}
void Window::set_minimum_size(const Gfx::IntSize& size)
{
m_minimum_size_modified = true;
m_minimum_size_when_windowless = size;
if (is_visible())
WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowMinimumSize>(m_window_id, size);
}
void Window::center_on_screen()
{
auto window_rect = rect();
@ -278,6 +296,14 @@ void Window::center_within(const Window& other)
void Window::set_window_type(WindowType window_type)
{
m_window_type = window_type;
if (!m_minimum_size_modified) {
// Apply minimum size defaults.
if (m_window_type == WindowType::Normal)
m_minimum_size_when_windowless = { 50, 50 };
else
m_minimum_size_when_windowless = { 1, 1 };
}
}
void Window::set_cursor(Gfx::StandardCursor cursor)