New mappings: ctrl-[hjkl], pan image one window width/height

Makefile

@@ -1,6 +1,6 @@
 all: sxiv
 
-VERSION=git-20110529
+VERSION=git-20110603
 
 CC?=gcc
 DESTDIR?=

README.md

@@ -69,6 +69,8 @@ thumbnail mode are denoted via brackets:
     h,j,k,l      Pan image [move selection] left/down/up/right
                  (also with arrow keys)
     H,J,K,L      Pan to left/bottom/top/right image edge
+    Ctrl-h,j,k,l Pan image one window width/height left/down/up/right
+                 (also with Ctrl-arrow keys)
 
     <,>          Rotate image (counter-)clockwise by 90 degrees
 

image.c

@@ -275,19 +275,19 @@ int img_move(img_t *img, win_t *win, int dx, int dy) {
 	return ox != img->x || oy != img->y;
 }
 
-int img_pan(img_t *img, win_t *win, pandir_t dir) {
+int img_pan(img_t *img, win_t *win, pandir_t dir, int page) {
 	if (!img || !img->im || !win)
 		return 0;
 
 	switch (dir) {
 		case PAN_LEFT:
-			return img_move(img, win, win->w / 5, 0);
+			return img_move(img, win, win->w / (page ? 1 : 5), 0);
 		case PAN_RIGHT:
-			return img_move(img, win, win->w / 5 * -1, 0);
+			return img_move(img, win, win->w / (page ? 1 : 5) * -1, 0);
 		case PAN_UP:
-			return img_move(img, win, 0, win->h / 5);
+			return img_move(img, win, 0, win->h / (page ? 1 : 5));
 		case PAN_DOWN:
-			return img_move(img, win, 0, win->h / 5 * -1);
+			return img_move(img, win, 0, win->h / (page ? 1 : 5) * -1);
 	}
 
 	return 0;

image.h

@@ -68,7 +68,7 @@ int img_zoom_in(img_t*, win_t*);
 int img_zoom_out(img_t*, win_t*);
 
 int img_move(img_t*, win_t*, int, int);
-int img_pan(img_t*, win_t*, pandir_t);
+int img_pan(img_t*, win_t*, pandir_t, int);
 int img_pan_edge(img_t*, win_t*, pandir_t);
 
 void img_rotate_left(img_t*, win_t*);

main.c

@@ -357,17 +357,18 @@ void on_keypress(XKeyEvent *kev) {
 	unsigned int w, h;
 	char key;
 	KeySym ksym;
-	int changed;
+	int changed, ctrl;
 
 	if (!kev)
 		return;
 	
 	XLookupString(kev, &key, 1, &ksym, NULL);
 	changed = 0;
+	ctrl = CLEANMASK(kev->state) & ControlMask;
 
 #if EXT_COMMANDS
 	/* external commands from commands.h */
-	if (CLEANMASK(kev->state) & ControlMask) {
+	if (ctrl) {
 		for (x = 0; x < LEN(commands); ++x) {
 			if (commands[x].ksym == ksym) {
 				win_set_cursor(&win, CURSOR_WATCH);
@@ -446,19 +447,25 @@ void on_keypress(XKeyEvent *kev) {
 			/* panning */
 			case XK_h:
 			case XK_Left:
-				changed = img_pan(&img, &win, PAN_LEFT);
+				changed = img_pan(&img, &win, PAN_LEFT, ctrl);
 				break;
 			case XK_j:
 			case XK_Down:
-				changed = img_pan(&img, &win, PAN_DOWN);
+				changed = img_pan(&img, &win, PAN_DOWN, ctrl);
 				break;
 			case XK_k:
 			case XK_Up:
-				changed = img_pan(&img, &win, PAN_UP);
+				changed = img_pan(&img, &win, PAN_UP, ctrl);
 				break;
 			case XK_l:
 			case XK_Right:
-				changed = img_pan(&img, &win, PAN_RIGHT);
+				changed = img_pan(&img, &win, PAN_RIGHT, ctrl);
+				break;
+			case XK_Prior:
+				changed = img_pan(&img, &win, PAN_UP, 1);
+				break;
+			case XK_Next:
+				changed = img_pan(&img, &win, PAN_DOWN, 1);
 				break;
 
 			case XK_H:
@@ -632,23 +639,23 @@ void on_buttonpress(XButtonEvent *bev) {
 				if (mask == ControlMask)
 					changed = img_zoom_in(&img, &win);
 				else if (mask == ShiftMask)
-					changed = img_pan(&img, &win, PAN_LEFT);
+					changed = img_pan(&img, &win, PAN_LEFT, 0);
 				else
-					changed = img_pan(&img, &win, PAN_UP);
+					changed = img_pan(&img, &win, PAN_UP, 0);
 				break;
 			case Button5:
 				if (mask == ControlMask)
 					changed = img_zoom_out(&img, &win);
 				else if (mask == ShiftMask)
-					changed = img_pan(&img, &win, PAN_RIGHT);
+					changed = img_pan(&img, &win, PAN_RIGHT, 0);
 				else
-					changed = img_pan(&img, &win, PAN_DOWN);
+					changed = img_pan(&img, &win, PAN_DOWN, 0);
 				break;
 			case 6:
-				changed = img_pan(&img, &win, PAN_LEFT);
+				changed = img_pan(&img, &win, PAN_LEFT, 0);
 				break;
 			case 7:
-				changed = img_pan(&img, &win, PAN_RIGHT);
+				changed = img_pan(&img, &win, PAN_RIGHT, 0);
 				break;
 		}
 	} else {

sxiv.1

@@ -138,17 +138,29 @@ Pan image [move selection] up.
 .BR l ", " Right
 Pan image [move selection] right.
 .TP
-.BR H
+.B H
 Pan to left image edge.
 .TP
-.BR J
+.B J
 Pan to bottom image edge.
 .TP
-.BR K
+.B K
 Pan to top image edge.
 .TP
-.BR L
+.B L
 Pan to right image edge.
+.TP
+.BR Ctrl-h ", " Ctrl-Left
+Pan image one window width left.
+.TP
+.BR Ctrl-j ", " Ctrl-Down ", " PageDn
+Pan image one window height down.
+.TP
+.BR Ctrl-k ", " Ctrl-Up ", " PageUp
+Pan image one window height up.
+.TP
+.BR Ctrl-l ", " Ctrl-Right
+Pan image one window width right.
 .SS Rotation
 .TP
 .B <