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bc319d9e88
Okay, I've spent a whole day on this now, and it finally kinda works!
With this patch, CObject and all of its derived classes are reference
counted instead of tree-owned.
The previous, Qt-like model was nice and familiar, but ultimately also
outdated and difficult to reason about.
CObject-derived types should now be stored in RefPtr/NonnullRefPtr and
each class can be constructed using the forwarding construct() helper:
auto widget = GWidget::construct(parent_widget);
Note that construct() simply forwards all arguments to an existing
constructor. It is inserted into each class by the C_OBJECT macro,
see CObject.h to understand how that works.
CObject::delete_later() disappears in this patch, as there is no longer
a single logical owner of a CObject.
65 lines
2.4 KiB
C++
65 lines
2.4 KiB
C++
#include <LibGUI/GAboutDialog.h>
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#include <LibGUI/GBoxLayout.h>
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#include <LibGUI/GButton.h>
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#include <LibGUI/GLabel.h>
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#include <LibGUI/GWidget.h>
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GAboutDialog::GAboutDialog(const StringView& name, const GraphicsBitmap* icon, CObject* parent)
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: GDialog(parent)
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, m_name(name)
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, m_icon(icon)
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{
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resize(230, 120);
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set_title(String::format("About %s", m_name.characters()));
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set_resizable(false);
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auto widget = GWidget::construct();
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set_main_widget(widget);
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widget->set_fill_with_background_color(true);
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widget->set_layout(make<GBoxLayout>(Orientation::Horizontal));
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auto left_container = GWidget::construct(widget.ptr());
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left_container->set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
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left_container->set_preferred_size(48, 0);
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left_container->set_layout(make<GBoxLayout>(Orientation::Vertical));
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auto icon_label = GLabel::construct(left_container);
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icon_label->set_icon(m_icon);
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icon_label->set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
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icon_label->set_preferred_size(40, 40);
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left_container->layout()->add_spacer();
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auto right_container = GWidget::construct(widget.ptr());
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right_container->set_layout(make<GBoxLayout>(Orientation::Vertical));
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right_container->layout()->set_margins({ 0, 4, 4, 4 });
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auto make_label = [&](const StringView& text, bool bold = false) {
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auto label = GLabel::construct(text, right_container);
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label->set_text_alignment(TextAlignment::CenterLeft);
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label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
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label->set_preferred_size(0, 14);
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if (bold)
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label->set_font(Font::default_bold_font());
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};
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make_label(m_name, true);
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make_label("Serenity Operating System");
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make_label("(C) The Serenity Developers");
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right_container->layout()->add_spacer();
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auto button_container = GWidget::construct(right_container.ptr());
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button_container->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
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button_container->set_preferred_size(0, 20);
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button_container->set_layout(make<GBoxLayout>(Orientation::Horizontal));
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button_container->layout()->add_spacer();
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auto ok_button = GButton::construct("OK", button_container);
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ok_button->set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
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ok_button->set_preferred_size(80, 20);
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ok_button->on_click = [this](auto&) {
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done(GDialog::ExecOK);
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};
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}
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GAboutDialog::~GAboutDialog()
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{
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}
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