Added plenty lots of options

Makefile

@@ -1,6 +1,6 @@
 all: sxiv
 
-VERSION=git-20110127
+VERSION=git-20110128
 
 CC?=gcc
 PREFIX?=/usr/local

README.md

@@ -30,8 +30,16 @@ Usage
 -----
 sxiv supports the following command-line options:
 
-    -w WIDTHxHEIGHT  set window width to WIDTH and height to HEIGHT
+    -d       scale all images to 100%, but fit large images into window
-                     (if HEIGHT is omitted, height is also set to WIDTH)
+    -f       start in fullscreen mode
+    -p       pixelize, i.e. turn off image anti-aliasing
+    -s       scale all images to fit into window
+    -v       print version information and exit
+    -w WIDTHxHEIGHT
+             set window width to WIDTH and height to HEIGHT
+             (if HEIGHT is omitted, height is also set to WIDTH)
+    -Z       same as `-z 100'
+    -z ZOOM  scale all images to current zoom level, use ZOOM at startup
 
 Use the following keys to control sxiv:
 

config.h

@@ -1,4 +1,5 @@
-/* default window dimensions:                            */
+/* default window dimensions:                            *
+ * (also controllable via -w option)                     */
 #define WIN_WIDTH   800
 #define WIN_HEIGHT  600
 
@@ -7,6 +8,7 @@
 #define BG_COLOR    "#888888"
 
 /* how should images be scaled when they are loaded?:    *
+ * (also controllable via -d/-s/-Z/-z options)           *
  *   SCALE_DOWN: 100%, but fit large images into window, *
  *   SCALE_FIT:  fit all images into window,             *
  *   SCALE_ZOOM: use current zoom level, 100% at startup */

image.c

@@ -23,6 +23,7 @@
 
 #include "sxiv.h"
 #include "image.h"
+#include "options.h"
 
 int zl_cnt;
 float zoom_min;
@@ -34,8 +35,10 @@ void img_init(img_t *img, win_t *win) {
 	zoom_max = zoom_levels[zl_cnt - 1] / 100.0;
 
 	if (img) {
-		img->zoom = 1.0;
+		img->zoom = options->zoom;
-		img->aa = 1;
+		img->zoom = MAX(img->zoom, zoom_min);
+		img->zoom = MIN(img->zoom, zoom_max);
+		img->aa = options->aa;
 	}
 
 	if (win) {
@@ -102,32 +105,20 @@ void img_check_pan(img_t *img, win_t *win) {
 void img_render(img_t *img, win_t *win) {
 	int sx, sy, sw, sh;
 	int dx, dy, dw, dh;
-	float zw, zh;
 
 	if (!img || !win || !imlib_context_get_image())
 		return;
 
-	if (!img->zoomed && SCALE_MODE != SCALE_ZOOM) {
+	if (!img->zoomed && options->scalemode != SCALE_ZOOM) {
-		/* set zoom level to fit image into window */
+		img_fit(img, win);
-		zw = (float) win->w / (float) img->w;
+		if (options->scalemode == SCALE_DOWN && img->zoom > 1.0)
-		zh = (float) win->h / (float) img->h;
-		img->zoom = MIN(zw, zh);
-
-		if (img->zoom < zoom_min)
-			img->zoom = zoom_min;
-		else if (img->zoom > zoom_max)
-			img->zoom = zoom_max;
-
-		if (SCALE_MODE == SCALE_DOWN && img->zoom > 1.0)
 			img->zoom = 1.0;
 	}
 
 	if (!img->re) {
 		/* rendered for the first time */
 		img->re = 1;
-		/* center image in window */
+		img_center(img, win);
-		img->x = (win->w - img->w * img->zoom) / 2;
-		img->y = (win->h - img->h * img->zoom) / 2;
 	}
 	
 	if (img->checkpan) {
@@ -167,14 +158,37 @@ void img_render(img_t *img, win_t *win) {
 	win_draw(win);
 }
 
+int img_fit(img_t *img, win_t *win) {
+	float oz, zw, zh;
+
+	if (!img || !win)
+		return 0;
+
+	oz = img->zoom;
+	zw = (float) win->w / (float) img->w;
+	zh = (float) win->h / (float) img->h;
+
+	img->zoom = MIN(zw, zh);
+	img->zoom = MAX(img->zoom, zoom_min);
+	img->zoom = MIN(img->zoom, zoom_max);
+
+	return oz != img->zoom;
+}
+
+void img_center(img_t *img, win_t *win) {
+	if (!img || !win)
+		return;
+
+	img->x = (win->w - img->w * img->zoom) / 2;
+	img->y = (win->h - img->h * img->zoom) / 2;
+}
+
 int img_zoom(img_t *img, float z) {
 	if (!img)
 		return 0;
 
-	if (z < zoom_min)
+	z = MAX(z, zoom_min);
-		z = zoom_min;
+	z = MIN(z, zoom_max);
-	else if (z > zoom_max)
-		z = zoom_max;
 
 	if (z != img->zoom) {
 		img->x -= (img->w * z - img->w * img->zoom) / 2;

image.h

@@ -21,11 +21,11 @@
 
 #include "window.h"
 
-enum scalemode {
+typedef enum scalemode_e {
 	SCALE_DOWN = 0,
 	SCALE_FIT,
 	SCALE_ZOOM
-};
+} scalemode_t;
 
 typedef enum pandir_e {
 	PAN_LEFT = 0,
@@ -52,6 +52,9 @@ void img_free(img_t*);
 int img_load(img_t*, const char*);
 void img_render(img_t*, win_t*);
 
+int img_fit(img_t*, win_t*);
+void img_center(img_t*, win_t*);
+
 int img_zoom_in(img_t*);
 int img_zoom_out(img_t*);
 

options.c

@@ -29,7 +29,7 @@ options_t _options;
 const options_t *options = (const options_t*) &_options;
 
 void print_usage() {
-	printf("usage: sxiv [-hv] [-w WIDTH[xHEIGHT]] FILES...\n");
+	printf("usage: sxiv [-dfhpsvZ] [-w WIDTH[xHEIGHT]] [-z ZOOM] FILES...\n");
 }
 
 void print_version() {
@@ -39,19 +39,37 @@ void print_version() {
 
 void parse_options(int argc, char **argv) {
 	unsigned short w, h;
+	float z;
 	int opt;
 
+	_options.scalemode = SCALE_MODE;
+	_options.zoom = 1.0;
+	_options.aa = 1;
+
 	_options.winw = w = 0;
 	_options.winh = h = 0;
+	_options.fullscreen = 0;
 
-	while ((opt = getopt(argc, argv, "hvw:")) != -1) {
+	while ((opt = getopt(argc, argv, "dfhpsvw:Zz:")) != -1) {
 		switch (opt) {
 			case '?':
 				print_usage();
 				exit(1);
+			case 'd':
+				_options.scalemode = SCALE_DOWN;
+				break;
+			case 'f':
+				_options.fullscreen = 1;
+				break;
 			case 'h':
 				print_usage();
 				exit(0);
+			case 'p':
+				_options.aa = 0;
+				break;
+			case 's':
+				_options.scalemode = SCALE_FIT;
+				break;
 			case 'v':
 				print_version();
 				exit(0);
@@ -65,6 +83,20 @@ void parse_options(int argc, char **argv) {
 					_options.winh = (int) h;
 				}
 				break;
+			case 'Z':
+				_options.scalemode = SCALE_ZOOM;
+				_options.zoom = 1.0;
+				break;
+			case 'z':
+				_options.scalemode = SCALE_ZOOM;
+				if (!sscanf(optarg, "%f", &z) || z < 0) {
+					fprintf(stderr, "sxiv: invalid argument for option -z: %s\n",
+					        optarg);
+					exit(1);
+				} else {
+					_options.zoom = z / 100.0;
+				}
+				break;
 		}
 	}
 

options.h

@@ -19,11 +19,19 @@
 #ifndef OPTIONS_H
 #define OPTIONS_H
 
+#include "image.h"
+
 typedef struct options_s {
 	const char **filenames;
 	int filecnt;
+
+	scalemode_t scalemode;
+	float zoom;
+	unsigned char aa;
+
 	int winw;
 	int winh;
+	unsigned char fullscreen;
 } options_t;
 
 extern const options_t *options;

sxiv.1

@@ -3,11 +3,12 @@
 sxiv \- Simple (or small or suckless) X Image Viewer
 .SH SYNOPSIS
 .B sxiv
-.RB [ \-hv ]
+.RB [ \-dfhpsvZ ]
-[
+.RB [ \-w
-.B \-w
 .IB WIDTH x HEIGHT
 ]
+.RB [ \-z
+.IR ZOOM ]
 .IR FILE ...
 .SH DESCRIPTION
 sxiv is a simple image viewer for X. It only has the most basic features
@@ -17,9 +18,21 @@ Please note, that the fullscreen mode requires an EWMH/NetWM compliant window
 manager.
 .SH OPTIONS
 .TP
+.B \-d
+Scale all images to 100%, but fit large images into window.
+.TP
+.B \-f
+Start in fullscreen mode.
+.TP
 .B \-h
 Print brief usage information to standard output and exit.
 .TP
+.B \-p
+Pixelize images, i.e. turn off anti-aliasing.
+.TP
+.B \-s
+Scale all images to fit into window.
+.TP
 .B \-v
 Print version information to standard output and exit.
 .TP
@@ -32,6 +45,14 @@ If
 .I HEIGHT
 is omitted, height is also set to
 .IR WIDTH .
+.TP
+.B \-Z
+The same as `-z 100'.
+.TP
+.BI "\-z " ZOOM
+Scale all images to the current zoom level, use a zoom level of
+.I ZOOM
+at startup.
 .SH KEYBOARD COMMANDS
 .SS General
 .TP

window.c

@@ -54,6 +54,7 @@ void win_open(win_t *win) {
 	win->bgcol = bgcol.pixel;
 	win->pm = 0;
 
+	win->fullscreen = 0;
 	win->w = MIN(options->winw, e->scrw);
 	win->h = MIN(options->winh, e->scrh);
 	win->x = (e->scrw - win->w) / 2;
@@ -81,6 +82,9 @@ void win_open(win_t *win) {
 
 	XMapWindow(e->dpy, win->xwin);
 	XFlush(e->dpy);
+	
+	if (options->fullscreen)
+		win_toggle_fullscreen(win);
 }
 
 void win_close(win_t *win) {

window.h

@@ -45,7 +45,7 @@ typedef struct win_s {
 	int y;
 
 	int bw;
-	int fullscreen;
+	unsigned char fullscreen;
 } win_t;
 
 void win_open(win_t*);