Added <,> mappings to rotate image

Makefile

@@ -1,6 +1,6 @@
 all: sxiv
 
-VERSION=0.2
+VERSION=git-20110126
 
 CC?=gcc
 PREFIX?=/usr/local

README.md

@@ -42,5 +42,6 @@ Use the following keys to control sxiv:
     +,=          Zoom in
     -            Zoom out
     h,j,k,l      Scroll left/down/up/right
+		<,>          Rotate image (counter-)clockwise by 90 degrees
     f            Toggle fullscreen mode (requires an EWMH/NetWM compliant
                  window manager)

image.c

@@ -104,7 +104,7 @@ void img_render(img_t *img, win_t *win) {
 	if (!img || !win || !imlib_context_get_image())
 		return;
 
-	if ((!img->re || !img->zoomed) && SCALE_MODE != SCALE_ZOOM) {
+	if (!img->zoomed && SCALE_MODE != SCALE_ZOOM) {
 		/* set zoom level to fit image into window */
 		zw = (float) win->w / (float) img->w;
 		zh = (float) win->h / (float) img->h;
@@ -241,3 +241,34 @@ int img_pan(img_t *img, win_t *win, pandir_t dir) {
 
 	return ox != img->x || oy != img->y;
 }
+
+int img_rotate(img_t *img, win_t *win, int d) {
+	int ox, oy, tmp;
+
+	if (!img || !win)
+		return 0;
+
+	ox = d == 1 ? img->x : win->w - img->x - img->w * img->zoom;
+	oy = d == 3 ? img->y : win->h - img->y - img->h * img->zoom;
+
+	imlib_image_orientate(d);
+
+	img->x = oy + (win->w - win->h) / 2;
+	img->y = ox + (win->h - win->w) / 2;
+
+	tmp = img->w;
+	img->w = img->h;
+	img->h = tmp;
+
+	img->checkpan = 1;
+
+	return 1;
+}
+
+int img_rotate_left(img_t *img, win_t *win) {
+	return img_rotate(img, win, 3);
+}
+
+int img_rotate_right(img_t *img, win_t *win) {
+	return img_rotate(img, win, 1);
+}

image.h

@@ -56,4 +56,7 @@ int img_zoom_out(img_t*);
 
 int img_pan(img_t*, win_t*, pandir_t);
 
+int img_rotate_left(img_t*, win_t*);
+int img_rotate_right(img_t*, win_t*);
+
 #endif /* IMAGE_H */

main.c

@@ -219,6 +219,14 @@ void on_keypress(XEvent *ev) {
 			changed = img_pan(&img, &win, PAN_RIGHT);
 			break;
 
+		/* rotation */
+		case '<':
+			changed = img_rotate_left(&img, &win);
+			break;
+		case '>':
+			changed = img_rotate_right(&img, &win);
+			break;
+
 		/* Control window */
 		case 'f':
 			win_toggle_fullscreen(&win);

sxiv.1

@@ -65,6 +65,13 @@ Pan up.
 .TP
 .B l
 Pan right.
+.SS Rotation
+.TP
+.B <
+Rotate image counter-clockwise by 90 degrees.
+.TP
+.B >
+Rotate image clockwise by 90 degrees.
 .SS Control window
 .TP
 .B f