*/
#include <gtk/gtk.h>
+#include <gdk/gdkkeysyms.h>
#include "score.h"
#define unused(foo) foo __attribute__((unused))
+typedef struct scherzo
+{
+ score_t *score;
+ int staff_height;
+} scherzo_t;
+
static int
on_delete_event_quit (unused (GtkWidget *widget),
unused (GdkEvent *event),
}
static int
-on_expose_event_draw (GtkWidget *widget,
- unused (GdkEventExpose *event),
+on_expose_event_draw (GtkWidget *widget,
+ unused (GdkEventExpose *expose),
void * user_data)
{
- score_t *score = user_data;
+ scherzo_t *scherzo = user_data;
+ score_t *score = scherzo->score;
cairo_t *cr;
GtkAllocation allocation;
static const int pad = 10;
- int widget_width, staff_width;
+ int widget_width;
gtk_widget_get_allocation (widget, &allocation);
widget_width = allocation.width;
/* Add some padding on the left/right */
cairo_translate (cr, pad, pad);
-
+ score_set_staff_height (score, scherzo->staff_height);
score_set_width (score, widget_width - 2 * pad);
score_draw (score, cr);
return TRUE;
}
+static int
+on_key_press_event (GtkWidget *widget,
+ GdkEventKey *key,
+ void *user_data)
+{
+ scherzo_t *scherzo = user_data;
+
+ switch (key->keyval) {
+ case GDK_KEY_plus:
+ case GDK_KEY_KP_Add:
+ case GDK_KEY_equal:
+ case GDK_KEY_KP_Equal:
+ scherzo->staff_height += 4;
+ gtk_widget_queue_draw (widget);
+ return TRUE;
+ break;
+ case GDK_KEY_minus:
+ case GDK_KEY_KP_Subtract:
+ scherzo->staff_height -= 4;
+ gtk_widget_queue_draw (widget);
+ return TRUE;
+ break;
+ case GDK_KEY_q:
+ case GDK_KEY_Q:
+ case GDK_KEY_Escape:
+ gtk_main_quit ();
+ return FALSE;
+ }
+
+ /* Allow the event to propagate to other handlers. */
+ return FALSE;
+}
+
int
main (int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *drawing_area;
- score_t score;
+ scherzo_t scherzo;
gtk_init (&argc, &argv);
- score_init (&score);
+ scherzo.score = score_create (NULL);
+ scherzo.staff_height = 24;
+ score_set_staff_height (scherzo.score, scherzo.staff_height);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
g_signal_connect (drawing_area, "expose-event",
G_CALLBACK (on_expose_event_draw),
- &score);
+ &scherzo);
+
+ g_signal_connect (window, "key-press-event",
+ G_CALLBACK (on_key_press_event),
+ &scherzo);
gtk_widget_show_all (window);