118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
// 11 october 2014
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// #qo pkg-config: gtk+-3.0
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#include <gtk/gtk.h>
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#define GOPOPOVER_TYPE (goPopover_get_type())
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#define GOPOPOVER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GOPOPOVER_TYPE, goPopover))
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#define IS_GOPOPOVER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GOPOPOVER_TYPE))
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#define GOPOPOVER_CLASS(class) (G_TYPE_CHECK_CLASS_CAST((class), GOPOPOVER_TYPE, goPopoverClass))
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#define IS_GOPOPOVER_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE((class), GOPOPOVER_TYPE))
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#define GOPOPOVER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GOPOPOVER_TYPE, goPopoverClass))
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typedef struct goPopover goPopover;
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typedef struct goPopoverClass goPopoverClass;
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struct goPopover {
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GtkBin parent_instance;
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void *gocontainer;
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GdkWindow *gdkwin;
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};
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struct goPopoverClass {
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GtkBinClass parent_class;
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};
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G_DEFINE_TYPE(goPopover, goPopover, GTK_TYPE_BIN)
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static void goPopover_init(goPopover *p)
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{
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gtk_widget_set_has_window(GTK_WIDGET(p), TRUE);
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}
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static void goPopover_dispose(GObject *obj)
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{
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G_OBJECT_CLASS(goPopover_parent_class)->dispose(obj);
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}
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static void goPopover_finalize(GObject *obj)
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{
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G_OBJECT_CLASS(goPopover_parent_class)->finalize(obj);
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}
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static void goPopover_realize(GtkWidget *widget)
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{
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GdkWindowAttr attr;
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goPopover *p = GOPOPOVER(widget);
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attr.x = 0;
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attr.y = 0;
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attr.width = 200;
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attr.height = 200;
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attr.wclass = GDK_INPUT_OUTPUT;
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attr.event_mask = gtk_widget_get_events(GTK_WIDGET(p)) | GDK_POINTER_MOTION_MASK | GDK_BUTTON_MOTION_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_EXPOSURE_MASK | GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK;
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attr.visual = gtk_widget_get_visual(GTK_WIDGET(p));
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attr.window_type = GDK_WINDOW_CHILD; // GtkPopover does this; TODO what does GtkWindow(GTK_WINDOW_POPUP) do?
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p->gdkwin = gdk_window_new(gtk_widget_get_parent_window(GTK_WIDGET(p)),
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&attr, GDK_WA_VISUAL);
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gtk_widget_set_window(GTK_WIDGET(p), p->gdkwin);
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gtk_widget_register_window(GTK_WIDGET(p), p->gdkwin);
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gtk_widget_set_realized(GTK_WIDGET(p), TRUE);
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}
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static void goPopover_map(GtkWidget *widget)
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{
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gdk_window_show(GOPOPOVER(widget)->gdkwin);
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GTK_WIDGET_CLASS(goPopover_parent_class)->map(widget);
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}
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static void goPopover_unmap(GtkWidget *widget)
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{
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gdk_window_hide(GOPOPOVER(widget)->gdkwin);
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GTK_WIDGET_CLASS(goPopover_parent_class)->unmap(widget);
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}
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static gboolean goPopover_draw(GtkWidget *widget, cairo_t *cr)
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{
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GtkStyleContext *context;
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context = gtk_widget_get_style_context(widget);
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gtk_render_background(context, cr, 0, 0, 200, 200);
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return TRUE;
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}
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static void goPopover_class_init(goPopoverClass *class)
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{
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G_OBJECT_CLASS(class)->dispose = goPopover_dispose;
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G_OBJECT_CLASS(class)->finalize = goPopover_finalize;
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GTK_WIDGET_CLASS(class)->realize = goPopover_realize;
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GTK_WIDGET_CLASS(class)->map = goPopover_map;
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GTK_WIDGET_CLASS(class)->unmap = goPopover_unmap;
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GTK_WIDGET_CLASS(class)->draw = goPopover_draw;
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}
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void buttonClicked(GtkWidget *button, gpointer data)
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{
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GtkWidget *popover;
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popover = g_object_new(GOPOPOVER_TYPE, NULL);
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gtk_widget_set_parent(popover, gtk_widget_get_parent(button));
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gtk_widget_show(popover);
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}
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int main(void)
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{
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GtkWidget *mainwin;
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GtkWidget *button;
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gtk_init(NULL, NULL);
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mainwin = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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gtk_window_resize(GTK_WINDOW(mainwin), 150, 50);
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g_signal_connect(mainwin, "destroy", gtk_main_quit, NULL);
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button = gtk_button_new_with_label("Click Me");
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g_signal_connect(button, "clicked", G_CALLBACK(buttonClicked), NULL);
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gtk_container_add(GTK_CONTAINER(mainwin), button);
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gtk_widget_show_all(mainwin);
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gtk_main();
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return 0;
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}
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