croptool

commit 3c5129b4e685e8e098026434ea5e5807050dc18e
parent 8ea1b32c8ee63a66d2b6c4328e060ff004a5c1a3
Author: lumidify <nobody@lumidify.org>
Date:   Fri,  1 May 2020 11:26:45 +0200

Add cursors

Diffstat:
M
croptool.c
 | 
37
+++++++++++++++++++++++++++++++++++--

1 file changed, 35 insertions(+), 2 deletions(-)
diff --git a/croptool.c b/croptool.c
@@ -65,6 +65,7 @@ struct State {
 	GdkPixbuf *cur_pixbuf;
 	struct Point move_handle;
 	gboolean moving;
+	gboolean resizing;
 	gboolean lock_x;
 	gboolean lock_y;
 	GdkColor gdk_color;
@@ -109,6 +110,7 @@ int main(int argc, char *argv[]) {
 	state->filenames = argv;
 	state->cur_selection = -1;
 	state->moving = FALSE;
+	state->resizing = FALSE;
 	state->lock_x = FALSE;
 	state->lock_y = FALSE;
 	state->window_w = 0;
@@ -127,7 +129,7 @@ int main(int argc, char *argv[]) {
 	gtk_widget_add_events(area,
 	    GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
 	    GDK_BUTTON_MOTION_MASK | GDK_KEY_PRESS_MASK |
-	    GDK_POINTER_MOTION_HINT_MASK);
+	    GDK_POINTER_MOTION_HINT_MASK | GDK_POINTER_MOTION_MASK);
 	gtk_container_add(GTK_CONTAINER(window), area);
 
 	g_signal_connect(area, "expose-event", G_CALLBACK(draw_expose), state);
@@ -299,6 +301,7 @@ button_press(GtkWidget *area, GdkEventButton *event, gpointer data) {
 		rect->x1 = x;
 		rect->y1 = y;
 	}
+	state->resizing = TRUE;
 	return FALSE;
 }
 
@@ -306,6 +309,7 @@ static gboolean
 button_release(GtkWidget *area, GdkEventButton *event, gpointer data) {
 	struct State *state = (struct State *)data;
 	state->moving = FALSE;
+	state->resizing = FALSE;
 	state->lock_x = FALSE;
 	state->lock_y = FALSE;
 	return FALSE;
@@ -369,11 +373,40 @@ drag_motion(GtkWidget *area, GdkEventMotion *event, gpointer data) {
 		rect->y1 += y_delta;
 		state->move_handle.x = x;
 		state->move_handle.y = y;
-	} else {
+	} else if (state->resizing == TRUE) {
 		if (state->lock_y != TRUE)
 			rect->x1 = x;
 		if (state->lock_x != TRUE)
 			rect->y1 = y;
+	} else {
+		int x0 = rect->x0, x1 = rect->x1;
+		int y0 = rect->y0, y1 = rect->y1;
+		sort_coordinates(&x0, &y0, &x1, &y1);
+		GdkCursor *c = NULL;
+		GdkCursor *old = gdk_window_get_cursor(area->window);
+		if (old)
+			gdk_cursor_unref(old);
+		if (collide_point(x, y, x0, y0)) {
+			c = gdk_cursor_new(GDK_TOP_LEFT_CORNER);
+		} else if (collide_point(x, y, x1, y0)) {
+			c = gdk_cursor_new(GDK_TOP_RIGHT_CORNER);
+		} else if (collide_point(x, y, x0, y1)) {
+			c = gdk_cursor_new(GDK_BOTTOM_LEFT_CORNER);
+		} else if (collide_point(x, y, x1, y1)) {
+			c = gdk_cursor_new(GDK_BOTTOM_RIGHT_CORNER);
+		} else if (collide_line(x, y, x0, y0, x1, y0)) {
+			c = gdk_cursor_new(GDK_TOP_SIDE);
+		} else if (collide_line(x, y, x1, y1, x0, y1)) {
+			c = gdk_cursor_new(GDK_BOTTOM_SIDE);
+		} else if (collide_line(x, y, x1, y1, x1, y0)) {
+			c = gdk_cursor_new(GDK_RIGHT_SIDE);
+		} else if (collide_line(x, y, x0, y0, x0, y1)) {
+			c = gdk_cursor_new(GDK_LEFT_SIDE);
+		} else if (collide_rect(x, y, *rect)) {
+			c = gdk_cursor_new(GDK_FLEUR);
+		}
+		gdk_window_set_cursor(area->window, c);
+		return FALSE;
 	}
 
 	gtk_widget_queue_draw(area);