Small refactorings, removed over-ambitious todo

Makefile

@@ -1,6 +1,6 @@
 all: sxiv
 
-VERSION=0.7
+VERSION=git-20110227
 
 CC?=gcc
 PREFIX?=/usr/local

TODO

@@ -1 +0,0 @@
-- Keyboard mapping to save rotated images

main.c

@@ -69,17 +69,20 @@ void cleanup() {
 	}
 }
 
-int load_image() {
+int load_image(int new) {
 	struct stat fstats;
 
+	if (new >= 0 && new < filecnt) {
 		img_close(&img);
-
+		fileidx = new;
 		if (!stat(filenames[fileidx], &fstats))
 			filesize = fstats.st_size;
 		else
 			filesize = 0;
-
 		return img_load(&img, filenames[fileidx]);
+	} else {
+		return 0;
+	}
 }
 
 int main(int argc, char **argv) {
@@ -140,7 +143,7 @@ int main(int argc, char **argv) {
 	} else {
 		mode = MODE_NORMAL;
 		tns.thumbs = NULL;
-		load_image();
+		load_image(fileidx);
 		img_render(&img, &win);
 	}
 
@@ -307,41 +310,29 @@ void on_keypress(XKeyEvent *kev) {
 			/* navigate image list */
 			case XK_n:
 			case XK_space:
-				if (fileidx + 1 < filecnt) {
-					++fileidx;
-					changed = load_image();
-				}
+				if (fileidx + 1 < filecnt)
+					changed = load_image(fileidx + 1);
 				break;
 			case XK_p:
 			case XK_BackSpace:
-				if (fileidx > 0) {
-					--fileidx;
-					changed = load_image();
-				}
+				if (fileidx > 0)
+					changed = load_image(fileidx - 1);
 				break;
 			case XK_bracketleft:
-				if (fileidx != 0) {
-					fileidx = MAX(0, fileidx - 10);
-					changed = load_image();
-				}
+				if (fileidx != 0)
+					changed = load_image(MAX(0, fileidx - 10));
 				break;
 			case XK_bracketright:
-				if (fileidx != filecnt - 1) {
-					fileidx = MIN(fileidx + 10, filecnt - 1);
-					changed = load_image();
-				}
+				if (fileidx != filecnt - 1)
+					changed = load_image(MIN(fileidx + 10, filecnt - 1));
 				break;
 			case XK_g:
-				if (fileidx != 0) {
-					fileidx = 0;
-					changed = load_image();
-				}
+				if (fileidx != 0)
+					changed = load_image(0);
 				break;
 			case XK_G:
-				if (fileidx != filecnt - 1) {
-					fileidx = filecnt - 1;
-					changed = load_image();
-				}
+				if (fileidx != filecnt - 1)
+					changed = load_image(filecnt - 1);
 				break;
 
 			/* zooming */
@@ -418,7 +409,7 @@ void on_keypress(XKeyEvent *kev) {
 				changed = 1;
 				break;
 			case XK_r:
-				changed = load_image();
+				changed = load_image(fileidx);
 				break;
 		}
 	} else {
@@ -426,8 +417,7 @@ void on_keypress(XKeyEvent *kev) {
 		switch (ksym) {
 			/* open selected image */
 			case XK_Return:
-				fileidx = tns.sel;
-				load_image();
+				load_image(tns.sel);
 				mode = MODE_NORMAL;
 				win_set_cursor(&win, CURSOR_NONE);
 				changed = 1;
@@ -496,10 +486,8 @@ void on_buttonpress(XButtonEvent *bev) {
 	if (mode == MODE_NORMAL) {
 		switch (bev->button) {
 			case Button1:
-				if (fileidx + 1 < filecnt) {
-					++fileidx;
-					changed = load_image();
-				}
+				if (fileidx + 1 < filecnt)
+					changed = load_image(fileidx + 1);
 				break;
 			case Button2:
 				mox = bev->x;
@@ -509,10 +497,8 @@ void on_buttonpress(XButtonEvent *bev) {
 				drag = 1;
 				break;
 			case Button3:
-				if (fileidx > 0) {
-					--fileidx;
-					changed = load_image();
-				}
+				if (fileidx > 0)
+					changed = load_image(fileidx - 1);
 				break;
 			case Button4:
 				if (mask == ControlMask)
@@ -543,8 +529,7 @@ void on_buttonpress(XButtonEvent *bev) {
 			case Button1:
 				if ((sel = tns_translate(&tns, bev->x, bev->y)) >= 0) {
 					if (sel == tns.sel) {
-						fileidx = tns.sel;
-						load_image();
+						load_image(tns.sel);
 						mode = MODE_NORMAL;
 						timo_cursor = TO_CURSOR_HIDE;
 					} else {
@@ -600,7 +585,8 @@ void run() {
 			gettimeofday(&t0, 0);
 
 			while (!XPending(win.env.dpy) && tns.cnt < filecnt) {
-				tns_load(&tns, &win, filenames[tns.cnt]);
+				/* tns.cnt is increased inside tns_load */
+				tns_load(&tns, &win, tns.cnt, filenames[tns.cnt]);
 				gettimeofday(&t1, 0);
 				if (TV_TO_DOUBLE(t1) - TV_TO_DOUBLE(t0) >= 0.25)
 					break;

thumbs.c

@@ -35,6 +35,7 @@ void tns_init(tns_t *tns, int cnt) {
 	tns->cnt = tns->first = tns->sel = 0;
 	tns->thumbs = (thumb_t*) s_malloc(cnt * sizeof(thumb_t));
 	memset(tns->thumbs, 0, cnt * sizeof(thumb_t));
+	tns->cap = cnt;
 	tns->dirty = 0;
 }
 
@@ -51,7 +52,7 @@ void tns_free(tns_t *tns, win_t *win) {
 	tns->thumbs = NULL;
 }
 
-void tns_load(tns_t *tns, win_t *win, const char *filename) {
+void tns_load(tns_t *tns, win_t *win, int n, const char *filename) {
 	int w, h;
 	float z, zw, zh;
 	thumb_t *t;
@@ -60,10 +61,17 @@ void tns_load(tns_t *tns, win_t *win, const char *filename) {
 	if (!tns || !win || !filename)
 		return;
 
-	if ((im = imlib_load_image(filename)))
+	if (n >= tns->cap)
+		return;
+	else if (n >= tns->cnt)
+		tns->cnt = n + 1;
+
+	if ((im = imlib_load_image(filename))) {
 		imlib_context_set_image(im);
-	else
+		imlib_image_set_changes_on_disk();
+	} else {
 		imlib_context_set_image(im_broken);
+	}
 
 	w = imlib_image_get_width();
 	h = imlib_image_get_height();
@@ -73,10 +81,12 @@ void tns_load(tns_t *tns, win_t *win, const char *filename) {
 	if (!im && z > 1.0)
 		z = 1.0;
 
-	t = &tns->thumbs[tns->cnt++];
+	t = &tns->thumbs[n];
 	t->w = z * w;
 	t->h = z * h;
 
+	if (t->pm)
+		win_free_pixmap(win, t->pm);
 	t->pm = win_create_pixmap(win, t->w, t->h);
 	imlib_context_set_drawable(t->pm);
 	imlib_context_set_anti_alias(1);

thumbs.h

@@ -38,6 +38,7 @@ typedef struct thumb_s {
 
 typedef struct tns_s {
 	thumb_t *thumbs;
+	int cap;
 	int cnt;
 	int x;
 	int y;
@@ -51,7 +52,7 @@ typedef struct tns_s {
 void tns_init(tns_t*, int);
 void tns_free(tns_t*, win_t*);
 
-void tns_load(tns_t*, win_t*, const char*);
+void tns_load(tns_t*, win_t*, int, const char*);
 
 void tns_render(tns_t*, win_t*);
 void tns_highlight(tns_t*, win_t*, int, Bool);