void redraw_labels (GtkWidget *widget, GtkStyle *previous_style)
{
GtkScrollbox *self = GTK_SCROLLBOX(widget);
int i;
if (self->labels->len < 1)
return;
stop_callback(self);
gtk_widget_set_size_request(GTK_WIDGET(self), 0, 0);
self->draw_middle = 0;
self->draw_maxmiddle = 0;
for (i = 0; i < self->labels->len; i++)
{
GdkPixmap *newpixmap;
struct label *lbl = (struct label*)g_ptr_array_index(self->labels, i);
if (!lbl->msg)
continue;
newpixmap = make_pixmap(self, lbl->msg);
if (lbl->pixmap)
g_free(lbl->pixmap);
lbl->pixmap = newpixmap;
}
start_callback(self);
}
int main( int argc, char *argv[] )
{
Display *dpy;
Window win;
Pixmap pm;
GLXPixmap glxpm;
dpy = XOpenDisplay(NULL);
win = make_rgb_window( dpy, 300, 300 );
glxpm = make_pixmap( dpy, win, 300, 300, &pm );
glXMakeCurrent( dpy, glxpm, ctx );
printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
/* Render an image into the pixmap */
glShadeModel( GL_FLAT );
glClearColor( 0.5, 0.5, 0.5, 1.0 );
glClear( GL_COLOR_BUFFER_BIT );
glViewport( 0, 0, 300, 300 );
glOrtho( -1.0, 1.0, -1.0, 1.0, -1.0, 1.0 );
glColor3f( 0.0, 1.0, 1.0 );
glRectf( -0.75, -0.75, 0.75, 0.75 );
glFlush();
XMapWindow( dpy, win );
event_loop( dpy, pm );
return 0;
}
void gtk_scrollbox_set_label(GtkScrollbox *self, gint n, gchar *value)
{
gboolean append = TRUE;
GdkPixmap *newpixmap;
struct label *newlbl;
if (n != -1)
append = FALSE;
if (!append)
{
struct label *lbl = (struct label*)g_ptr_array_index(self->labels, n);
if (lbl)
free_label(lbl);
newlbl = lbl;
}
else
{
newlbl = g_new0(struct label, 1);
g_ptr_array_add(self->labels, newlbl);
}
newpixmap = make_pixmap(self, value);
newlbl->pixmap = newpixmap;
newlbl->msg = g_strdup(value);
}
void start_draw_up(GtkScrollbox *self)
{
gint width, height;
struct label *lbl;
static int i = 0;
GtkWidget *widget = (GtkWidget *)self;
XFCE_PANEL_LOCK();
if (self->labels->len == 0)
{
XFCE_PANEL_UNLOCK();
return;
}
if (i >= self->labels->len)
i = 0;
lbl = (struct label*)g_ptr_array_index(self->labels, i);
self->pixmap = lbl->pixmap;
/* If we failed to create a proper pixmap, try again now */
if (!lbl->pixmap)
{
lbl->pixmap = make_pixmap(self, lbl->msg);
if (!lbl->pixmap)
{
/* Still no pixmap. We need to restart the timer */
if (self->draw_timeout)
stop_callback(self);
self->draw_timeout = g_timeout_add(LABEL_SPEED, (GSourceFunc)start_draw_up, self);
XFCE_PANEL_UNLOCK();
return;
}
}
if (self->labels->len == 1)
{
GdkRectangle update_rect = {0, 0, GTK_WIDGET(self)->allocation.width,
GTK_WIDGET(self)->allocation.height};
self->pixmap = lbl->pixmap;
self->draw_offset = 0;
gtk_widget_draw(GTK_WIDGET(self), &update_rect);
XFCE_PANEL_UNLOCK();
return;
}
gdk_drawable_get_size(GDK_DRAWABLE(self->pixmap), &width, &height);
self->draw_middle = self->draw_maxmiddle - width / 2;
self->draw_timeout = g_timeout_add(LABEL_SPEED, (GSourceFunc)draw_up, self);
i++;
XFCE_PANEL_UNLOCK();
}
int main( int argc, char *argv[] )
{
Display *dpy;
Window win;
Pixmap pm;
GLXPixmap glxpm;
int eventbase, errorbase;
dpy = XOpenDisplay(NULL);
if(NULL == dpy) {
fprintf(stderr, "error: opening display\n");
return EXIT_FAILURE;
}
if(!glXQueryExtension(dpy, &eventbase, &errorbase)) {
fprintf(stderr, "GLX is not available!\n");
return EXIT_FAILURE;
}
win = make_rgb_window( dpy, 300, 300 );
glxpm = make_pixmap( dpy, win, 300, 300, &pm );
printf("glxpm 0x%lx\n", glxpm);
if(!glXMakeCurrent(dpy, glxpm, ctx)) {
fprintf(stderr, "glXMakeCurrent failed!\n");
return EXIT_FAILURE;
}
printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
/* Render an image into the pixmap */
glShadeModel( GL_FLAT );
glClearColor( 0.5, 0.5, 0.5, 1.0 );
glClear( GL_COLOR_BUFFER_BIT );
glViewport( 0, 0, 300, 300 );
glOrtho( -1.0, 1.0, -1.0, 1.0, -1.0, 1.0 );
glColor3f( 0.0, 0.0, 1.0 );
glRectf( -0.75, -0.75, 0.75, 0.75 );
glFlush();
XMapWindow( dpy, win );
event_loop( dpy, pm );
return 0;
}
