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gtk-demo: Add a file chooser to the menu demo

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So we can try this with bigger images.
This commit is contained in:
Matthias Clasen 2023-03-10 23:51:17 +01:00
parent 0f02040292
commit f00659d97f
1 changed files with 61 additions and 0 deletions
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61
demos/gtk-demo/menu.c
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@ -13,6 +13,62 @@
#include <gtk/gtk.h>
#include "demo3widget.h"
static void
file_opened (GObject *source,
GAsyncResult *result,
void *data)
{
GFile *file;
GError *error = NULL;
GdkTexture *texture;
file = gtk_file_dialog_open_finish (GTK_FILE_DIALOG (source), result, &error);
if (!file)
{
g_print ("%s\n", error->message);
g_error_free (error);
return;
}
texture = gdk_texture_new_from_file (file, &error);
g_object_unref (file);
if (!texture)
{
g_print ("%s\n", error->message);
g_error_free (error);
return;
}
g_object_set (G_OBJECT (data), "texture", texture, NULL);
g_object_unref (texture);
}
static void
open_file (GtkWidget *picker,
GtkWidget *demo)
{
GtkWindow *parent = GTK_WINDOW (gtk_widget_get_root (picker));
GtkFileDialog *dialog;
GtkFileFilter *filter;
GListStore *filters;
dialog = gtk_file_dialog_new ();
filter = gtk_file_filter_new ();
gtk_file_filter_set_name (filter, "Images");
gtk_file_filter_add_pixbuf_formats (filter);
filters = g_list_store_new (GTK_TYPE_FILE_FILTER);
g_list_store_append (filters, filter);
g_object_unref (filter);
gtk_file_dialog_set_filters (dialog, G_LIST_MODEL (filters));
g_object_unref (filters);
gtk_file_dialog_open (dialog, parent, NULL, file_opened, demo);
g_object_unref (dialog);
}
GtkWidget *
do_menu (GtkWidget *do_widget)
@ -27,6 +83,7 @@ do_menu (GtkWidget *do_widget)
GtkWidget *widget;
GtkWidget *scale;
GtkWidget *dropdown;
GtkWidget *button;
window = gtk_window_new ();
gtk_window_set_title (GTK_WINDOW (window), "Menu");
@ -48,6 +105,10 @@ do_menu (GtkWidget *do_widget)
box2 = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_box_append (GTK_BOX (box), box2);
button = gtk_button_new_from_icon_name ("document-open-symbolic");
g_signal_connect (button, "clicked", G_CALLBACK (open_file), widget);
gtk_box_append (GTK_BOX (box2), button);
scale = gtk_scale_new_with_range (GTK_ORIENTATION_HORIZONTAL, 0.01, 10.0, 0.1);
gtk_range_set_value (GTK_RANGE (scale), 1.0);
gtk_widget_set_hexpand (scale, TRUE);