diff options
Diffstat (limited to 'example')
| -rw-r--r-- | example/Makefile.am | 14 | ||||
| -rw-r--r-- | example/gesture.c | 173 |
2 files changed, 187 insertions, 0 deletions
diff --git a/example/Makefile.am b/example/Makefile.am index bd96642..702cc8f 100644 --- a/example/Makefile.am +++ b/example/Makefile.am @@ -1,7 +1,19 @@ noinst_PROGRAMS = \ + gesture \ messagedialog \ menus +gesture_SOURCES = \ + gesture.c + +gesture_CPPFLAGS = \ + -I$(top_srcdir) \ + -I$(top_srcdir)/src \ + -I$(top_builddir)/src \ + $(GCC_FLAGS) \ + $(GTK_CFLAGS) \ + $(MAINTAINER_CFLAGS) + messagedialog_SOURCES = \ messagedialog.c @@ -24,6 +36,8 @@ menus_CPPFLAGS = \ $(GTK_CFLAGS) \ $(MAINTAINER_CFLAGS) +gesture_LDADD = $(top_builddir)/src/libido-0.1.la + messagedialog_LDADD = $(top_builddir)/src/libido-0.1.la menus_LDADD = $(top_builddir)/src/libido-0.1.la diff --git a/example/gesture.c b/example/gesture.c new file mode 100644 index 0000000..57c4c24 --- /dev/null +++ b/example/gesture.c @@ -0,0 +1,173 @@ +#include <stdlib.h> +#include <string.h> +#include <signal.h> + +#include "idogesturemanager.h" + +static gint rotate = 0; +static gdouble scale = 1.0; +static gdouble translate[2] = { 200, 200 }; +static gint in_touch = 0; + +static gboolean +expose_event (GtkWidget *widget, + GdkEventExpose *event, + gpointer data) +{ + cairo_t *cr; + gdouble radians; + gint width = (in_touch > 0) ? 10 : 1; + + cr = gdk_cairo_create (widget->window); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_line_width (cr, width); + + radians = rotate * (G_PI / 180); + cairo_translate (cr, translate[0], translate[1]); + cairo_scale (cr, scale, scale); + cairo_rotate (cr, radians); + + cairo_rectangle (cr, -50, -50, 100, 100); + cairo_stroke_preserve (cr); + cairo_set_source_rgb (cr, 1, 0, 1); + cairo_fill (cr); + + cairo_destroy (cr); + + return FALSE; +} + +GtkWidget * +create_window (void) +{ + GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + GtkWidget *da; + const GdkColor white = { 0, 0xffff, 0xffff, 0xffff }; + + gtk_window_set_title (GTK_WINDOW (window), "Touch Demo"); + gtk_window_set_default_size (GTK_WINDOW (window), 600, 600); + g_signal_connect (window, "destroy", G_CALLBACK (gtk_widget_destroyed), &window); + + da = gtk_drawing_area_new (); + gtk_container_add (GTK_CONTAINER (window), da); + + gtk_widget_modify_bg (da, GTK_STATE_NORMAL, &white); + + g_signal_connect (da, "expose-event", + G_CALLBACK (expose_event), NULL); + + return window; +} + +static void +gesture_start (GtkWindow *window, + IdoGestureEvent *event) +{ + in_touch++; + + gtk_widget_queue_draw (GTK_WIDGET (window)); +} + +static void +gesture_end (GtkWindow *window, + IdoGestureEvent *event) +{ + in_touch--; + + gtk_widget_queue_draw (GTK_WIDGET (window)); +} + +static void +rotate_update (GtkWindow *window, + IdoGestureEvent *event) +{ + IdoEventGestureRotate *e = (IdoEventGestureRotate *)event; + + rotate += e->angle_delta * 100; + + gtk_widget_queue_draw (GTK_WIDGET (window)); +} + +static void +pinch_update (GtkWindow *window, + IdoGestureEvent *event) +{ + IdoEventGesturePinch *e = (IdoEventGesturePinch *)event; + + scale += e->radius_delta / 100; + + gtk_widget_queue_draw (GTK_WIDGET (window)); +} + +static void +drag_update (GtkWindow *window, + IdoGestureEvent *event) +{ + IdoEventGestureDrag *e = (IdoEventGestureDrag *)event; + + translate[0] += e->delta_x; + translate[1] += e->delta_y; + + gtk_widget_queue_draw (GTK_WIDGET (window)); +} + +static void +window_mapped (GtkWidget *widget) +{ + IdoGestureManager *manager = ido_gesture_manager_get (); + GtkWindow *window = GTK_WINDOW (widget); + + ido_gesture_manager_register_window (manager, + window, + IDO_GESTURE_PINCH2, + gesture_start, + pinch_update, + gesture_end); + + ido_gesture_manager_register_window (manager, + window, + IDO_GESTURE_ROTATE2, + gesture_start, + rotate_update, + gesture_end); + + ido_gesture_manager_register_window (manager, + window, + IDO_GESTURE_DRAG2, + gesture_start, + drag_update, + gesture_end); +} + +static void +abort_handler (int x) +{ + g_print (" **** ABORT ****\n"); + + exit (1); +} + +int +main (int argc, char **argv) +{ + GtkWidget *window; + + gtk_init (&argc, &argv); + + /* Don't crash X if we're using some shitty Intel graphics like + * my Dell XT2 has in it. */ + signal (SIGABRT, abort_handler); + + window = create_window (); + + g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL); + g_signal_connect (window, "map-event", G_CALLBACK (window_mapped), NULL); + + gtk_widget_show_all (window); + + gtk_main (); + + return 0; +} + |