~ctwm/ctwm/trunk : contents of image

~ctwm/ctwm/trunk : (revision 716)

479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	1	/*
	2	* XPM image handling functions
	3	*/
	4
	5	#include "ctwm.h"
	6
479.1.26 by Matthew Fuller Pull includes we don't need in image_xpm.h and add the necessary ones	7	#include <stdio.h>
491.1.14 by Matthew Fuller Remove incorrect pre-ANSI potential override prototypes for malloc()	8	#include <stdlib.h>
479.1.26 by Matthew Fuller Pull includes we don't need in image_xpm.h and add the necessary ones	9	#include <string.h>
	10
479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	11	#include <X11/xpm.h>
	12
479.1.26 by Matthew Fuller Pull includes we don't need in image_xpm.h and add the necessary ones	13	#include "screen.h"
	14
479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	15	#include "image.h"
	16	#include "image_xpm.h"
	17
480.1.17 by Matthew Fuller const-ify all these image names we pass through this process.	18	static Image LoadXpmImage(const char name, ColorPair cp);
	19	static void xpmErrorMessage(int status, const char name, const char fullname);
479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	20
	21	static int reportxpmerror = 1;
	22
479.1.29 by Matthew Fuller Split the rest of the image* function definitions, and make indent.	23
480.1.1 by Matthew Fuller Shuffle the public function to the front and comment appropriately.	24	/*
	25	* External entry point
	26	*/
	27	Image *
480.1.17 by Matthew Fuller const-ify all these image names we pass through this process.	28	GetXpmImage(const char *name, ColorPair cp)
480.1.1 by Matthew Fuller Shuffle the public function to the front and comment appropriately.	29	{
480.1.2 by Matthew Fuller Add comments, restrict the scope of some variables, be a little more	30	/* For non-animated requests, just load the file */
480.1.1 by Matthew Fuller Shuffle the public function to the front and comment appropriately.	31	if(! strchr(name, '%')) {
501.1.9 by Matthew Fuller Convert pointer values from None -> NULL in image*.	32	return LoadXpmImage(name, cp);
480.1.1 by Matthew Fuller Shuffle the public function to the front and comment appropriately.	33	}
480.1.2 by Matthew Fuller Add comments, restrict the scope of some variables, be a little more	34
480.1.11 by Matthew Fuller Take the magic in LoadXpmImage() for putting together animations, and	35	/* Else it's animated, so load/return the series */
	36	return get_image_anim_cp(name, cp, LoadXpmImage);
480.1.1 by Matthew Fuller Shuffle the public function to the front and comment appropriately.	37	}
	38
	39
	40
	41	/*
	42	* Internal backend
	43	*/
479.1.29 by Matthew Fuller Split the rest of the image* function definitions, and make indent.	44	static Image *
480.1.17 by Matthew Fuller const-ify all these image names we pass through this process.	45	LoadXpmImage(const char *name, ColorPair cp)
479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	46	{
	47	char *fullname;
	48	Image *image;
	49	int status;
	50	Colormap stdcmap = Scr->RootColormaps.cwins[0]->colormap->c;
	51	XpmAttributes attributes;
	52	static XpmColorSymbol overrides[] = {
	53	{"Foreground", NULL, 0},
	54	{"Background", NULL, 0},
	55	{"HiShadow", NULL, 0},
	56	{"LoShadow", NULL, 0}
	57	};
	58
	59	fullname = ExpandPixmapPath(name);
	60	if(! fullname) {
501.1.9 by Matthew Fuller Convert pointer values from None -> NULL in image*.	61	return NULL;
479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	62	}
	63
480.1.19 by Matthew Fuller Add an AllocImage() to ensure new Image's are initialized properly,	64	image = AllocImage();
501.1.9 by Matthew Fuller Convert pointer values from None -> NULL in image*.	65	if(image == NULL) {
480.1.2 by Matthew Fuller Add comments, restrict the scope of some variables, be a little more	66	free(fullname);
501.1.9 by Matthew Fuller Convert pointer values from None -> NULL in image*.	67	return NULL;
479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	68	}
	69
	70	attributes.valuemask = 0;
	71	attributes.valuemask \|= XpmSize;
	72	attributes.valuemask \|= XpmReturnPixels;
	73	attributes.valuemask \|= XpmColormap;
	74	attributes.valuemask \|= XpmDepth;
	75	attributes.valuemask \|= XpmVisual;
	76	attributes.valuemask \|= XpmCloseness;
	77	attributes.valuemask \|= XpmColorSymbols;
	78
	79	attributes.numsymbols = 4;
	80	attributes.colorsymbols = overrides;
	81	overrides[0].pixel = cp.fore;
	82	overrides[1].pixel = cp.back;
	83	overrides[2].pixel = cp.shadd;
	84	overrides[3].pixel = cp.shadc;
	85
	86
	87	attributes.colormap = AlternateCmap ? AlternateCmap : stdcmap;
	88	attributes.depth = Scr->d_depth;
	89	attributes.visual = Scr->d_visual;
	90	attributes.closeness = 65535; /* Never fail */
	91	status = XpmReadFileToPixmap(dpy, Scr->Root, fullname,
	92	&(image->pixmap), &(image->mask), &attributes);
	93	if(status != XpmSuccess) {
	94	xpmErrorMessage(status, name, fullname);
480.1.22 by Matthew Fuller Nope, we do need to have the free in both branches here, to avoid the	95	free(fullname);
479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	96	free(image);
501.1.9 by Matthew Fuller Convert pointer values from None -> NULL in image*.	97	return NULL;
479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	98	}
480.1.22 by Matthew Fuller Nope, we do need to have the free in both branches here, to avoid the	99	free(fullname);
479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	100	image->width = attributes.width;
	101	image->height = attributes.height;
501.1.9 by Matthew Fuller Convert pointer values from None -> NULL in image*.	102	return image;
479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	103	}
	104
479.1.29 by Matthew Fuller Split the rest of the image* function definitions, and make indent.	105	static void
480.1.17 by Matthew Fuller const-ify all these image names we pass through this process.	106	xpmErrorMessage(int status, const char name, const char fullname)
479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	107	{
	108	switch(status) {
	109	case XpmSuccess:
480.1.2 by Matthew Fuller Add comments, restrict the scope of some variables, be a little more	110	/* No error */
	111	return;
479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	112
	113	case XpmColorError:
	114	if(reportxpmerror)
	115	fprintf(stderr,
	116	"Could not parse or alloc requested color : %s\n",
	117	fullname);
	118	return;
	119
	120	case XpmOpenFailed:
480.1.5 by Matthew Fuller Take out dev dropping.	121	if(reportxpmerror && reportfilenotfound) {
479.1.2 by Matthew Fuller Break out XPM functions into image_xpm. Start laying a little	122	fprintf(stderr, "unable to locate XPM file : %s\n", fullname);
	123	}
	124	return;
	125
	126	case XpmFileInvalid:
	127	fprintf(stderr, "invalid XPM file : %s\n", fullname);
	128	return;
	129
	130	case XpmNoMemory:
	131	if(reportxpmerror) {
	132	fprintf(stderr, "Not enough memory for XPM file : %s\n", fullname);
	133	}
	134	return;
	135
	136	case XpmColorFailed:
	137	if(reportxpmerror) {
	138	fprintf(stderr, "Color not found in : %s\n", fullname);
	139	}
	140	return;
	141
	142	default :
	143	fprintf(stderr, "Unknown error in : %s\n", fullname);
	144	return;
	145	}
	146	}