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/* OpenGL/Gears
*
* This is a classic OpenGL demo, running in a GtkGLArea.
*/
#include <stdlib.h>
#include <gtk/gtk.h>
#include "gtkgears.h"
/************************************************************************
* DEMO CODE *
************************************************************************/
static void
on_axis_value_change (GtkAdjustment *adjustment,
gpointer data)
{
GtkGears *gears = GTK_GEARS (data);
int axis = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (adjustment), "axis"));
gtk_gears_set_axis (gears, axis, gtk_adjustment_get_value (adjustment));
}
static GtkWidget *
create_axis_slider (GtkGears *gears,
int axis)
{
GtkWidget *box, *label, *slider;
GtkAdjustment *adj;
const char *text;
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, FALSE);
switch (axis)
{
case GTK_GEARS_X_AXIS:
text = "X";
break;
case GTK_GEARS_Y_AXIS:
text = "Y";
break;
case GTK_GEARS_Z_AXIS:
text = "Z";
break;
default:
g_assert_not_reached ();
}
label = gtk_label_new (text);
gtk_box_append (GTK_BOX (box), label);
gtk_widget_show (label);
adj = gtk_adjustment_new (gtk_gears_get_axis (gears, axis), 0.0, 360.0, 1.0, 12.0, 0.0);
g_object_set_data (G_OBJECT (adj), "axis", GINT_TO_POINTER (axis));
g_signal_connect (adj, "value-changed",
G_CALLBACK (on_axis_value_change),
gears);
slider = gtk_scale_new (GTK_ORIENTATION_VERTICAL, adj);
gtk_scale_set_draw_value (GTK_SCALE (slider), FALSE);
gtk_box_append (GTK_BOX (box), slider);
gtk_widget_set_vexpand (slider, TRUE);
gtk_widget_show (slider);
gtk_widget_show (box);
return box;
}
GtkWidget *
do_gears (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
GtkWidget *box, *hbox, *fps_label, *gears, *overlay, *frame;
int i;
if (!window)
{
window = gtk_window_new ();
gtk_window_set_title (GTK_WINDOW (window), "Gears");
gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
gtk_window_set_default_size (GTK_WINDOW (window), 640, 640);
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
overlay = gtk_overlay_new ();
gtk_widget_set_margin_start (overlay, 12);
gtk_widget_set_margin_end (overlay, 12);
gtk_widget_set_margin_top (overlay, 12);
gtk_widget_set_margin_bottom (overlay, 12);
gtk_window_set_child (GTK_WINDOW (window), overlay);
frame = gtk_frame_new (NULL);
gtk_widget_set_halign (frame, GTK_ALIGN_START);
gtk_widget_set_valign (frame, GTK_ALIGN_START);
gtk_widget_add_css_class (frame, "app-notification");
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), frame);
fps_label = gtk_label_new ("");
gtk_widget_set_halign (fps_label, GTK_ALIGN_START);
gtk_frame_set_child (GTK_FRAME (frame), fps_label);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, FALSE);
gtk_box_set_spacing (GTK_BOX (box), 6);
gtk_overlay_set_child (GTK_OVERLAY (overlay), box);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, FALSE);
gtk_box_set_spacing (GTK_BOX (box), 6);
gtk_box_append (GTK_BOX (box), hbox);
gears = gtk_gears_new ();
gtk_widget_set_hexpand (gears, TRUE);
gtk_widget_set_vexpand (gears, TRUE);
gtk_box_append (GTK_BOX (hbox), gears);
for (i = 0; i < GTK_GEARS_N_AXIS; i++)
gtk_box_append (GTK_BOX (hbox), create_axis_slider (GTK_GEARS (gears), i));
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, FALSE);
gtk_box_set_spacing (GTK_BOX (hbox), 6);
gtk_box_append (GTK_BOX (box), hbox);
gtk_gears_set_fps_label (GTK_GEARS (gears), GTK_LABEL (fps_label));
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}
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