Pileus Git - grits/blob - src/plugin-example.c

   1 #include <config.h>
   2 #include <gtk/gtk.h>
   3 #include <gtk/gtkgl.h>
   4 #include <GL/gl.h>
   5
   6 #include "aweather-gui.h"
   7
   8 static GtkWidget *rotate_button;
   9
  10 static float ang = 30.;
  11
  12 static gboolean expose(GtkWidget *da, GdkEventExpose *event, gpointer user_data)
  13 {
  14         glDisable(GL_TEXTURE_2D);
  15         glMatrixMode(GL_MODELVIEW ); glPushMatrix(); glLoadIdentity();
  16         glMatrixMode(GL_PROJECTION); glPushMatrix(); glLoadIdentity();
  17         //glOrtho(-1,1,-1,1,-10,10);
  18
  19         glTranslatef(0.5, -0.5, -2);
  20
  21         float light_ambient[]  = {0.1f, 0.1f, 0.0f};
  22         float light_diffuse[]  = {0.9f, 0.9f, 0.9f};
  23         float light_position[] = {-20.0f, 40.0f, -40.0f, 1.0f};
  24         glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient);
  25         glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse);
  26         glLightfv(GL_LIGHT0, GL_POSITION, light_position);
  27         glEnable(GL_LIGHT0);
  28         glEnable(GL_LIGHTING);
  29         glEnable(GL_COLOR_MATERIAL);
  30
  31         glRotatef(ang, 1, 0, 1);
  32         glColor4f(0.9, 0.9, 0.7, 1.0);
  33         gdk_gl_draw_teapot(TRUE, 0.25);
  34         gdk_gl_draw_cube(TRUE, 0.25);
  35         glColor4f(1.0, 1.0, 1.0, 1.0);
  36
  37         glDisable(GL_LIGHT0);
  38         glDisable(GL_LIGHTING);
  39         glDisable(GL_COLOR_MATERIAL);
  40
  41         glMatrixMode(GL_PROJECTION); glPopMatrix();
  42         glMatrixMode(GL_MODELVIEW ); glPopMatrix();
  43         return FALSE;
  44 }
  45
  46 static gboolean rotate(gpointer user_data)
  47 {
  48         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(rotate_button)))
  49                 return TRUE;
  50
  51         GtkWidget *da = GTK_WIDGET (user_data);
  52
  53         ang++;
  54
  55         gdk_window_invalidate_rect(da->window, &da->allocation, FALSE);
  56         gdk_window_process_updates(da->window, FALSE);
  57
  58         return TRUE;
  59 }
  60
  61 gboolean example_init(AWeatherGui *gui)
  62 {
  63         GtkWidget *drawing = aweather_gui_get_widget(gui, "drawing");
  64         GtkWidget *config  = aweather_gui_get_widget(gui, "tabs");
  65
  66         /* Add configuration tab */
  67         GtkWidget *label = gtk_label_new("example");
  68         rotate_button = gtk_toggle_button_new_with_label("Rotate");
  69         gtk_notebook_append_page(GTK_NOTEBOOK(config), rotate_button, label);
  70
  71         /* Set up OpenGL Stuff */
  72         g_signal_connect(drawing, "expose-event", G_CALLBACK(expose), NULL);
  73         g_timeout_add(1000/60, rotate, drawing);
  74         return TRUE;
  75 }