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