/
mapimagemap.c
2163 lines (1856 loc) · 73.5 KB
/
mapimagemap.c
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/******************************************************************************
*
* Project: MapServer
* Purpose: Implements imagemap outputformat support.
* Author: Attila Csipa
*
******************************************************************************
* Copyright (c) 1996-2005 Regents of the University of Minnesota.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies of this Software or works derived from this Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
******************************************************************************
*
* $Log$
* Revision 1.23.4.2 2006/01/25 16:10:40 dan
* Prevent systematic buffer overflow in imagemap code when vsnprintf()
* is not available (bug 1613)
*
* Revision 1.23.4.1 2006/01/16 20:41:22 sdlime
* Fixed error with image legends (shifted text) introduced by the 1449 bug fix. (bug 1607)
*
* Revision 1.23 2005/06/14 16:03:33 dan
* Updated copyright date to 2005
*
* Revision 1.22 2005/05/19 04:09:34 sdlime
* Removed the LINE_VERT_THRESHOLD test (bug 564) from PDF/SWF/SVG/imagemap drivers.
*
* Revision 1.21 2005/02/18 03:06:45 dan
* Turned all C++ (//) comments into C comments (bug 1238)
*
* Revision 1.20 2005/02/02 19:36:12 frank
* Preliminary implementation of MS_SYMBOL_VECTOR in msDrawMarkerSymbolIM
*
* Revision 1.19 2004/11/23 17:09:05 frank
* check if we have vsnprintf before using it
*
* Revision 1.18 2004/10/21 04:30:55 frank
* Added standardized headers. Added MS_CVSID().
*
*/
#include "map.h"
#include "dxfcolor.h"
#include <stdarg.h>
#include <time.h>
#ifdef _WIN32
#include <fcntl.h>
#include <io.h>
#endif
MS_CVSID("$Id$")
#define MYDEBUG 0
#define DEBUG_IF if (MYDEBUG > 2)
/*
* Client-side imagemap support was originally written by
* Attila Csipa (http://prometheus.org.yu/me.php). C. Scott Ananian
* (http://cscott.net) cleaned up the code somewhat and made it more flexible:
* you can now customize the generated HREFs and create mouseover and
* mouseout attributes.
*
* Use
* IMAGETYPE imagemap
* to select this driver.
*
* The following FORMATOPTIONs are available. If any are set to the empty
* string the associated attribute will be suppressed.
* POLYHREF the href string to use for the <area> elements.
* use a %s to interpolate the area title.
* default: "javascript:Clicked('%s');"
* POLYMOUSEOVER the onMouseOver string to use for the <area> elements.
* use a %s to interpolate the area title.
* default: "" (ie the attribute is suppressed)
* POLYMOUSEOUT the onMouseOut string to use for the <area> elements.
* use a %s to interpolate the area title.
* default: "" (ie the attribute is suppressed)
* SYMBOLMOUSEOVER and SYMBOLMOUSEOUT are equivalent properties for
* <area> tags representing symbols, with the same defaults.
* MAPNAME the string which will be used in the name attribute
* of the <map> tag. There is no %s interpolation.
* default: "map1"
* SUPPRESS if "yes", then we will suppress area declarations with
* no title.
* default: "NO"
*
* For example, http://vevo.verifiedvoting.org/verifier contains this
* .map file fragment:
* OUTPUTFORMAT
* NAME imagemap
* DRIVER imagemap
* FORMATOPTION "POLYHREF=/verifier/map.php?state=%s"
* FORMATOPTION "SYMBOLHREF=#"
* FORMATOPTION "SUPPRESS=YES"
* FORMATOPTION "MAPNAME=map-48"
* FORMATOPTION "POLYMOUSEOUT=return nd();"
* FORMATOPTION "POLYMOUSEOVER=return overlib('%s');"
* END
*/
/*-------------------------------------------------------------------------*/
/* A pString is a variable-length (appendable) string, stored as a triple:
* character pointer, allocated length, and used length. The one wrinkle
* is that we use pointers to the allocated size and character pointer,
* in order to support refering to fields declared elsewhere (ie in the
* 'image' data structure) for these. The 'iprintf' function appends
* to a pString. */
typedef struct pString {
/* these two fields are somewhere else */
char **string;
int *alloc_size;
/* this field is stored locally. */
int string_len;
} pString;
/* These are the pStrings we declare statically. One is the 'output'
* imagemap/dxf file; parts of this live in another data structure and
* are only referenced indirectly here. The other contains layer-specific
* information for the dxf output. */
static char *layerlist=NULL;
static int layersize=0;
static pString imgStr, layerStr={ &layerlist, &layersize, 0 };
/* Format strings for the various bits of a client-side imagemap. */
static const char *polyHrefFmt, *polyMOverFmt, *polyMOutFmt;
static const char *symbolHrefFmt, *symbolMOverFmt, *symbolMOutFmt;
static const char *mapName;
/* Should we suppress AREA declarations in imagemaps with no title? */
static int suppressEmpty=0;
/* Prevent buffer-overrun and format-string attacks by "sanitizing" any
* provided format string to fit the number of expected string arguments
* (MAX) exactly. */
static const char *makeFmtSafe(const char *fmt, int MAX) {
/* format string should have exactly 'MAX' %s */
char *result = malloc(strlen(fmt)+1+3*MAX), *cp;
int numstr=0, saw_percent=0;
strcpy(result, fmt);
for (cp=result; *cp; cp++) {
if (saw_percent) {
if (*cp=='%') {
/* safe */
} else if (*cp=='s' && numstr<MAX) {
numstr++; /* still safe */
} else {
/* disable this unsafe format string! */
*(cp-1)=' ';
}
saw_percent=0;
} else if (*cp=='%')
saw_percent=1;
}
/* fixup format strings without enough %s in them */
while (numstr<MAX) {
strcpy(cp, "%.s"); /* print using zero-length precision */
cp+=3;
numstr++;
}
return result;
}
/* Append the given printf-style formatted string to the pString 'ps'.
* This is much cleaner (and faster) than the technique this file
* used to use! */
static void im_iprintf(pString *ps, const char *fmt, ...) {
int n, remaining;
va_list ap;
do {
remaining = *(ps->alloc_size) - ps->string_len;
va_start(ap, fmt);
#if defined(HAVE_VSNPRINTF)
n = vsnprintf((*(ps->string)) + ps->string_len,
remaining, fmt, ap);
#else
/* If vsnprintf() is not available then require a minimum
* of 512 bytes of free space to prevent a buffer overflow
* This is not fully bulletproof but should help, see bug 1613
*/
if (remaining < 512)
n = -1;
else
n = vsprintf((*(ps->string)) + ps->string_len, fmt, ap);
#endif
va_end(ap);
/* if that worked, we're done! */
if (-1<n && n<remaining) {
ps->string_len += n;
return;
} else { /* double allocated string size */
*(ps->alloc_size) *= 2;/* these keeps realloc linear.*/
if (*(ps->alloc_size) < 1024)
/* careful: initial size can be 0 */
*(ps->alloc_size)=1024;
if (n>-1 && *(ps->alloc_size) <= (n + ps->string_len))
/* ensure at least as much as what is needed */
*(ps->alloc_size) = n+ps->string_len+1;
*(ps->string) = (char *) realloc
(*(ps->string), *(ps->alloc_size));
/* if realloc doesn't work, we're screwed! */
}
} while (1); /* go back and try again. */
}
static int lastcolor=-1;
static int matchdxfcolor(colorObj col)
{
int best=7;
int delta=128*255;
int tcolor = 0;
if (lastcolor != -1)
return lastcolor;
while (tcolor < 256 && (ctable[tcolor].r != col.red || ctable[tcolor].g != col.green || ctable[tcolor].b != col.blue)){
tcolor++;
if (abs(
(ctable[tcolor].r - col.red) * (ctable[tcolor].r - col.red)+
(ctable[tcolor].b - col.blue) * (ctable[tcolor].b - col.blue) +
(ctable[tcolor].g - col.green) * (ctable[tcolor].g - col.green) < delta)
){
best = tcolor;
delta = abs(
(ctable[tcolor].r - col.red) * (ctable[tcolor].r - col.red)+
(ctable[tcolor].b - col.blue) * (ctable[tcolor].b - col.blue) +
(ctable[tcolor].g - col.green) * (ctable[tcolor].g - col.green)
);
}
}
if (tcolor >= 256) tcolor = best;
/* DEBUG_IF printf("%d/%d/%d (%d/%d - %d), %d : %d/%d/%d<BR>\n", ctable[tcolor].r, ctable[tcolor].g, ctable[tcolor].b, tcolor, best, delta, lastcolor, col.red, col.green, col.blue); */
lastcolor = tcolor;
return tcolor;
}
#ifdef notdef /* not currently used */
static gdImagePtr searchImageCache(struct imageCacheObj *ic, styleObj *style, int size) {
/* struct imageCacheObj *icp; */
DEBUG_IF printf("searchImageCache\n<BR>");
/*
icp = ic;
while(icp) {
if(icp->symbol == symbol && icp->color == color && icp->size == size) return(icp->img);
icp = icp->next;
}
*/
return(NULL);
}
#endif /* def notdef */
static char* lname;
static int dxf;
void msImageStartLayerIM(mapObj *map, layerObj *layer, imageObj *image){
DEBUG_IF printf("ImageStartLayerIM\n<BR>");
free(lname);
if (layer->name)
lname = strdup(layer->name);
else
lname = strdup("NONE");
if (dxf == 2){
im_iprintf(&layerStr, "LAYER\n%s\n", lname);
} else if (dxf) {
im_iprintf(&layerStr,
" 0\nLAYER\n 2\n%s\n"
" 70\n 64\n 6\nCONTINUOUS\n", lname);
}
lastcolor = -1;
}
#ifdef notdef /* not currently used */
static struct imageCacheObj *addImageCache(struct imageCacheObj *ic, int *icsize, styleObj *style, int size, gdImagePtr img) {
struct imageCacheObj *icp;
DEBUG_IF printf("addImageCache\n<BR>");
if(*icsize > MS_IMAGECACHESIZE) { /* remove last element, size stays the same */
icp = ic;
while(icp->next && icp->next->next) icp = icp->next;
freeImageCache(icp->next);
icp->next = NULL;
} else
*icsize += 1;
if((icp = (struct imageCacheObj *)malloc(sizeof(struct imageCacheObj))) == NULL) {
msSetError(MS_MEMERR, NULL, "initImageCache()");
return(NULL);
}
icp->img = img;
icp->color = style->color;
icp->symbol = style->symbol;
icp->size = size;
icp->next = ic; /* insert at the beginning */
return(icp);
}
#endif /* def notdef */
/*
* Utility function to create a IM image. Returns
* a pointer to an imageObj structure.
*/
imageObj *msImageCreateIM(int width, int height, outputFormatObj *format,
char *imagepath, char *imageurl)
{
imageObj *image=NULL;
if (setvbuf(stdout, NULL, _IONBF , 0)){
printf("Whoops...");
};
DEBUG_IF printf("msImageCreateIM<BR>\n");
if (width > 0 && height > 0)
{
image = (imageObj *)calloc(1,sizeof(imageObj));
/*
if( format->imagemode == MS_IMAGEMODE_RGB
|| format->imagemode == MS_IMAGEMODE_RGBA )
{
#if IM2_VERS > 1
image->img.gd = gdImageCreateTrueColor(width, height);
#else
msSetError(MS_IMGERR,
"Attempt to use RGB or RGBA IMAGEMODE with IM 1.x, please upgrade to GD 2.x.", "msImageCreateGD()" );
#endif
}
else
image->img.gd = gdImageCreate(width, height);
*/
if (image)
{
imgStr.string = &(image->img.imagemap);
imgStr.alloc_size = &(image->size);
image->format = format;
format->refcount++;
image->width = width;
image->height = height;
image->imagepath = NULL;
image->imageurl = NULL;
if( strcasecmp("ON",msGetOutputFormatOption( format, "DXF", "OFF" )) == 0){
dxf = 1;
im_iprintf(&layerStr, " 2\nLAYER\n 70\n 10\n");
} else
dxf = 0;
if( strcasecmp("ON",msGetOutputFormatOption( format, "SCRIPT", "OFF" )) == 0){
dxf = 2;
im_iprintf(&layerStr, "");
}
/* get href formation string options */
polyHrefFmt = makeFmtSafe(msGetOutputFormatOption
( format, "POLYHREF", "javascript:Clicked('%s');"), 1);
polyMOverFmt = makeFmtSafe(msGetOutputFormatOption
( format, "POLYMOUSEOVER", ""), 1);
polyMOutFmt = makeFmtSafe(msGetOutputFormatOption
( format, "POLYMOUSEOUT", ""), 1);
symbolHrefFmt = makeFmtSafe(msGetOutputFormatOption
( format, "SYMBOLHREF", "javascript:SymbolClicked();"), 1);
symbolMOverFmt = makeFmtSafe(msGetOutputFormatOption
( format, "SYMBOLMOUSEOVER", ""), 1);
symbolMOutFmt = makeFmtSafe(msGetOutputFormatOption
( format, "SYMBOLMOUSEOUT", ""), 1);
/* get name of client-side image map */
mapName = msGetOutputFormatOption
( format, "MAPNAME", "map1" );
/* should we suppress area declarations with no title? */
if( strcasecmp("YES",msGetOutputFormatOption( format, "SUPPRESS", "NO" )) == 0){
suppressEmpty=1;
}
lname = strdup("NONE");
*(imgStr.string) = strdup("");
if (*(imgStr.string)){
*(imgStr.alloc_size) =
imgStr.string_len = strlen(*(imgStr.string));
} else {
*(imgStr.alloc_size) =
imgStr.string_len = 0;
}
if (imagepath)
{
image->imagepath = strdup(imagepath);
}
if (imageurl)
{
image->imageurl = strdup(imageurl);
}
return image;
}
else
free( image );
}
else
{
msSetError(MS_IMGERR,
"Cannot create IM image of size %d x %d.",
"msImageCreateIM()", width, height );
}
return image;
}
/*
* Utility function to initialize the color of an image. The background
* color is passed, but the outputFormatObj is consulted to see if the
* transparency should be set (for RGBA images). Note this function only
* affects TrueColor images.
*/
void msImageInitIM( imageObj *image )
{
DEBUG_IF printf("msImageInitIM<BR>\n");
/* if( image->format->imagemode == MS_IMAGEMODE_PC256 ) {
gdImageColorAllocate(image->img.gd, background->red, background->green, background->blue);
return;
}
#if IM2_VERS > 1
{
int pen, pixels, line;
int *tpixels;
if( image->format->imagemode == MS_IMAGEMODE_RGBA )
pen = imTrueColorAlpha( background->red,
background->green,
background->blue,
image->format->transparent ? 127 : 0 );
else
pen = imTrueColor( background->red,
background->green,
background->blue );
for( line = 0; line < image->img.gd->sy; line++ )
{
pixels = image->img.gd->sx;
tpixels = image->img.gd->tpixels[line];
while( pixels-- > 0 )
*(tpixels++) = pen;
}
}
#endif
*/
}
/*
* Utility function to load an image in a IM supported format, and
* return it as a valid imageObj.
*/
imageObj *msImageLoadIM( const char *filename )
{
/* FILE *stream;
gdImagePtr img=NULL;
const char *driver = NULL;
char bytes[8];
*/ imageObj *image = NULL;
DEBUG_IF printf("msImageLoadIM<BR>\n");
/*
image = (imageObj *)calloc(1,sizeof(imageObj));
stream = fopen(filename,"rb"); // allocate input and output images (same size)
if(!stream) {
msSetError(MS_IOERR, "(%s)", "msImageLoadIM()", filename );
return(NULL);
}
fread(bytes,8,1,stream); // read some bytes to try and identify the file
rewind(stream); // reset the image for the readers
if (memcmp(bytes,"GIF8",4)==0) {
#ifdef USE_GD_GIF
img = gdImageCreateFromGif(stream);
driver = "IM/GIF";
image->img.gd = img;
image->imagepath = NULL;
image->imageurl = NULL;
image->width = img->sx;
image->height = img->sy;
#else
msSetError(MS_MISCERR, "Unable to load GIF reference image.", "msImageLoadIM()");
fclose(stream);
return(NULL);
#endif
} else if (memcmp(bytes,PNGsig,8)==0) {
#ifdef USE_GD_PNG
img = gdImageCreateFromPng(stream);
driver = "IM/PNG";
image->img.gd = img;
image->imagepath = NULL;
image->imageurl = NULL;
image->width = img->sx;
image->height = img->sy;
#else
msSetError(MS_MISCERR, "Unable to load PNG reference image.", "msImageLoadIM()");
fclose(stream);
return(NULL);
#endif
} else if (memcmp(bytes,JPEGsig,3)==0) {
#ifdef USE_GD_JPEG
img = gdImageCreateFromJpeg(stream);
driver = "IM/JPEG";
image->img.gd = img;
image->imagepath = NULL;
image->imageurl = NULL;
image->width = img->sx;
image->height = img->sy;
#else
msSetError(MS_MISCERR, "Unable to load JPEG reference image.", "msImageLoadIM()");
fclose(stream);
return(NULL);
#endif
}
if(!img) {
msSetError(MS_IMERR, "Unable to initialize image '%s'", "msLoadImage()",
filename);
fclose(stream);
return(NULL);
}
// Create an outputFormatObj for the format. //
image->format = msCreateDefaultOutputFormat( NULL, driver );
if( image->format == NULL )
{
msSetError(MS_IMERR, "Unable to create default OUTPUTFORMAT definition for driver '%s'.", "msImageLoadGD()", driver );
return(NULL);
}
*/
return image;
}
#ifdef notdef /* not currently used */
/* TODO: might be a way to optimize this (halve the number of additions) */
static void imageOffsetPolyline(gdImagePtr img, shapeObj *p, int color, int offsetx, int offsety)
{
/* int i, j;
double dx, dy;
int ox=0, oy=0;
*/
DEBUG_IF printf("imageOffsetPolyline\n<BR>");
/*
if(offsety == -99) { // old-style offset (version 3.3 and earlier)
for (i = 0; i < p->numlines; i++) {
for(j=1; j<p->line[i].numpoints; j++) {
dx = abs(p->line[i].point[j-1].x - p->line[i].point[j].x);
dy = abs(p->line[i].point[j-1].y - p->line[i].point[j].y);
if(dx<=dy)
ox=offsetx;
else
oy=offsetx;
gdImageLine(img, (int)p->line[i].point[j-1].x+ox, (int)p->line[i].point[j-1].y+oy, (int)p->line[i].point[j].x+ox, (int)p->line[i].point[j].y+oy, color);
ox=0;
oy=0;
}
}
} else { // normal offset (eg. drop shadow)
for (i = 0; i < p->numlines; i++)
for(j=1; j<p->line[i].numpoints; j++)
gdImageLine(img, (int)p->line[i].point[j-1].x+offsetx, (int)p->line[i].point[j-1].y+offsety, (int)p->line[i].point[j].x+offsetx, (int)p->line[i].point[j].y+offsety, color);
}
*/
}
static void imagePolyline(gdImagePtr img, shapeObj *p, int color, int offsetx, int offsety)
{
/* int i, j; */
DEBUG_IF printf("imagePolyline\n<BR>");
/*
if(offsetx != 0 || offsetx != 0)
imageOffsetPolyline(img, p, color, offsetx, offsety);
else {
for (i = 0; i < p->numlines; i++)
for(j=1; j<p->line[i].numpoints; j++)
gdImageLine(img, (int)p->line[i].point[j-1].x, (int)p->line[i].point[j-1].y, (int)p->line[i].point[j].x, (int)p->line[i].point[j].y, color);
}
*/
}
#endif /* def notdef */
/* ------------------------------------------------------------------------- */
/* Stroke an ellipse with a line symbol of the specified size and color */
/* ------------------------------------------------------------------------- */
void msCircleDrawLineSymbolIM(symbolSetObj *symbolset, imageObj* img, pointObj *p, double r, styleObj *style, double scalefactor)
{
/* int i, j;
symbolObj *symbol;
int styleDashed[100];
int x, y, ox, oy;
int bc, fc;
int brush_bc, brush_fc;
double size, d;
gdImagePtr brush=NULL;
gdPoint points[MS_MAXVECTORPOINTS];
*/
DEBUG_IF printf("msCircleDrawLineSymbolIM\n<BR>");
/*
if(!p) return;
if(style->backgroundcolor.pen == MS_PEN_UNSET) msImageSetPenIM(img, &(style->backgroundcolor));
if(style->color.pen == MS_PEN_UNSET) msImageSetPenIM(img, &(style->color));
if(style->outlinecolor.pen == MS_PEN_UNSET) msImageSetPenIM(img, &(style->outlinecolor));
symbol = &(symbolset->symbol[style->symbol]);
bc = style->backgroundcolor.pen;
fc = style->color.pen;
if(fc==-1) fc = style->outlinecolor.pen;
ox = style->offsetx; // TODO: add scaling?
oy = style->offsety;
size = MS_NINT(style->size*scalefactor);
size = MS_MAX(size, style->minsize);
size = MS_MIN(size, style->maxsize);
if(style->symbol > symbolset->numsymbols || style->symbol < 0) return; // no such symbol, 0 is OK
if(fc < 0) return; // nothing to do
if(size < 1) return; // size too small
if(symbol == 0) { // just draw a single width line
gdImageArc(img, (int)p->x + ox, (int)p->y + oy, (int)r, (int)r, 0, 360, fc);
return;
}
switch(symbol->type) {
case(MS_SYMBOL_SIMPLE):
if(bc == -1) bc = imTransparent;
break;
case(MS_SYMBOL_TRUETYPE):
// msImageTruetypePolyline(img, p, symbol, fc, size, symbolset->fontset);
return;
break;
case(MS_SYMBOL_CARTOLINE):
return;
break;
case(MS_SYMBOL_ELLIPSE):
bc = imTransparent;
d = size/symbol->sizey;
x = MS_NINT(symbol->sizex*d);
y = MS_NINT(symbol->sizey*d);
if((x < 2) && (y < 2)) break;
// create the brush image
if((brush = searchImageCache(symbolset->imagecache, style, size)) == NULL) { // not in cache, create
brush = gdImageCreate(x, y);
brush_bc = gdImageColorAllocate(brush, gdImageRed(img,0), gdImageGreen(img, 0), gdImageBlue(img, 0));
gdImageColorTransparent(brush,0);
brush_fc = gdImageColorAllocate(brush, style->color.red, style->color.green, style->color.blue);
x = MS_NINT(brush->sx/2); // center the ellipse
y = MS_NINT(brush->sy/2);
// draw in the brush image
gdImageArc(brush, x, y, MS_NINT(d*symbol->points[0].x), MS_NINT(d*symbol->points[0].y), 0, 360, brush_fc);
if(symbol->filled)
gdImageFillToBorder(brush, x, y, brush_fc, brush_fc);
symbolset->imagecache = addImageCache(symbolset->imagecache, &symbolset->imagecachesize, style, size, brush);
}
gdImageSetBrush(img, brush);
fc=1; bc=0;
break;
case(MS_SYMBOL_PIXMAP):
gdImageSetBrush(img, symbol->img);
fc=1; bc=0;
break;
case(MS_SYMBOL_VECTOR):
if(bc == -1) bc = imTransparent;
d = size/symbol->sizey;
x = MS_NINT(symbol->sizex*d);
y = MS_NINT(symbol->sizey*d);
if((x < 2) && (y < 2)) break;
// create the brush image
if((brush = searchImageCache(symbolset->imagecache, style, size)) == NULL) { // not in cache, create
brush = gdImageCreate(x, y);
if(style->backgroundcolor.pen >= 0)
brush_bc = gdImageColorAllocate(brush, style->backgroundcolor.red, style->backgroundcolor.green, style->backgroundcolor.blue);
else {
brush_bc = gdImageColorAllocate(brush, gdImageRed(img,0), gdImageGreen(img, 0), gdImageBlue(img, 0));
gdImageColorTransparent(brush,0);
}
brush_fc = gdImageColorAllocate(brush, style->color.red, style->color.green, style->color.blue);
// draw in the brush image
for(i=0;i < symbol->numpoints;i++) {
points[i].x = MS_NINT(d*symbol->points[i].x);
points[i].y = MS_NINT(d*symbol->points[i].y);
}
gdImageFilledPolygon(brush, points, symbol->numpoints, brush_fc);
symbolset->imagecache = addImageCache(symbolset->imagecache, &symbolset->imagecachesize, style, size, brush);
}
gdImageSetBrush(img, brush);
fc = 1; bc = 0;
break;
}
if(symbol->stylelength > 0) {
int k=0, sc;
sc = fc; // start with foreground color
for(i=0; i<symbol->stylelength; i++) {
for(j=0; j<symbol->style[i]; j++) {
styleDashed[k] = sc;
k++;
}
if(sc==fc) sc = bc; else sc = fc;
}
gdImageSetStyle(img, styleDashed, k);
// gdImageArc(brush, x, y, MS_NINT(d*symbol->points[0].x), MS_NINT(d*symbol->points[0].y), 0, 360, brush_fc);
if(!brush && !symbol->img)
gdImageArc(img, (int)p->x + ox, (int)p->y + oy, (int)(2*r), (int)(2*r), 0, 360, gdStyled);
else
gdImageArc(img, (int)p->x + ox, (int)p->y + oy, (int)(2*r), (int)(2*r), 0, 360, gdStyledBrushed);
} else {
if(!brush && !symbol->img)
gdImageArc(img, (int)p->x + ox, (int)p->y + oy, (int)(2*r), (int)(2*r), 0, 360, fc);
else
gdImageArc(img, (int)p->x + ox, (int)p->y + oy, (int)(2*r), (int)(2*r), 0, 360, gdBrushed);
}
*/
return;
}
/* ------------------------------------------------------------------------- */
/* Fill a circle with a shade symbol of the specified size and color */
/* ------------------------------------------------------------------------- */
void msCircleDrawShadeSymbolIM(symbolSetObj *symbolset, imageObj* img,
pointObj *p, double r, styleObj *style, double scalefactor)
{
/* symbolObj *symbol;
int i;
gdPoint oldpnt,newpnt;
gdPoint sPoints[MS_MAXVECTORPOINTS];
gdImagePtr tile=NULL;
int x, y, ox, oy;
int fc, bc, oc;
int tile_bc=-1, tile_fc=-1; // colors (background and foreground) //
double size, d;
int bbox[8];
rectObj rect;
char *font=NULL;
*/
DEBUG_IF printf("msCircleDrawShadeSymbolIM<BR>\n");
/*
if(!p) return;
if(style->backgroundcolor.pen == MS_PEN_UNSET) msImageSetPenIM(img, &(style->backgroundcolor));
if(style->color.pen == MS_PEN_UNSET) msImageSetPenIM(img, &(style->color));
if(style->outlinecolor.pen == MS_PEN_UNSET) msImageSetPenIM(img, &(style->outlinecolor));
symbol = &(symbolset->symbol[style->symbol]);
bc = style->backgroundcolor.pen;
fc = style->color.pen;
oc = style->outlinecolor.pen;
ox = style->offsetx; // TODO: add scaling?
oy = style->offsety;
size = MS_NINT(style->size*scalefactor);
size = MS_MAX(size, style->minsize);
size = MS_MIN(size, style->maxsize);
if(fc==-1 && oc!=-1) { // use msDrawLineSymbolIM() instead (POLYLINE)
msCircleDrawLineSymbolIM(symbolset, img, p, r, style, scalefactor);
return;
}
if(style->symbol > symbolset->numsymbols || style->symbol < 0) return; // no such symbol, 0 is OK
if(fc ) return; // invalid color, -1 is valid
if(size < 1) return; // size too small
if(style->symbol == 0) { // simply draw a single pixel of the specified color
msImageFilledCircle(img, p, r, fc);
if(oc>-1) gdImageArc(img, (int)p->x, (int)p->y, (int)(2*r), (int)(2*r), 0, 360, oc);
return;
}
switch(symbol->type) {
case(MS_SYMBOL_TRUETYPE):
#if defined (USE_GD_FT) || defined (USE_GD_TTF)
font = msLookupHashTable(&(symbolset->fontset->fonts), symbol->font);
if(!font) return;
if(msGetCharacterSize(symbol->character, size, font, &rect) != MS_SUCCESS) return;
x = rect.maxx - rect.minx;
y = rect.maxy - rect.miny;
tile = gdImageCreate(x, y);
if(bc >= 0)
tile_bc = gdImageColorAllocate(tile, style->backgroundcolor.red, style->backgroundcolor.green, style->backgroundcolor.blue);
else {
tile_bc = gdImageColorAllocate(tile, gdImageRed(img, 0), gdImageGreen(img, 0), gdImageBlue(img, 0));
gdImageColorTransparent(tile,0);
}
tile_fc = gdImageColorAllocate(tile, style->color.red, style->color.green, style->color.blue);
x = -rect.minx;
y = -rect.miny;
#ifdef USE_GD_TTF
gdImageStringTTF(tile, bbox, ((symbol->antialias)?(tile_fc):-(tile_fc)), font, size, 0, x, y, symbol->character);
#else
gdImageStringFT(tile, bbox, ((symbol->antialias)?(tile_fc):-(tile_fc)), font, size, 0, x, y, symbol->character);
#endif
gdImageSetTile(img, tile);
#endif
break;
case(MS_SYMBOL_PIXMAP):
gdImageSetTile(img, symbol->img);
break;
case(MS_SYMBOL_ELLIPSE):
d = size/symbol->sizey; // size ~ height in pixels
x = MS_NINT(symbol->sizex*d)+1;
y = MS_NINT(symbol->sizey*d)+1;
if((x <= 1) && (y <= 1)) { // No sense using a tile, just fill solid
msImageFilledCircle(img, p, r, fc);
if(oc>-1) gdImageArc(img, (int)p->x, (int)p->y, (int)(2*r), (int)(2*r), 0, 360, oc);
return;
}
tile = gdImageCreate(x, y);
if(bc >= 0)
tile_bc = gdImageColorAllocate(tile, style->backgroundcolor.red, style->backgroundcolor.green, style->backgroundcolor.blue);
else {
tile_bc = gdImageColorAllocate(tile, gdImageRed(img, 0), gdImageGreen(img, 0), gdImageBlue(img, 0));
gdImageColorTransparent(tile,0);
}
tile_fc = gdImageColorAllocate(tile, style->color.red, style->color.green, style->color.blue);
x = MS_NINT(tile->sx/2);
y = MS_NINT(tile->sy/2);
//
//draw in the tile image
//
gdImageArc(tile, x, y, MS_NINT(d*symbol->points[0].x), MS_NINT(d*symbol->points[0].y), 0, 360, tile_fc);
if(symbol->filled)
gdImageFillToBorder(tile, x, y, tile_fc, tile_fc);
//
//Fill the polygon in the main image
//
gdImageSetTile(img, tile);
break;
case(MS_SYMBOL_VECTOR):
if(fc < 0)
return;
d = size/symbol->sizey; // size ~ height in pixels
x = MS_NINT(symbol->sizex*d)+1;
y = MS_NINT(symbol->sizey*d)+1;
if((x <= 1) && (y <= 1)) { // No sense using a tile, just fill solid
msImageFilledCircle(img, p, r, fc);
if(oc>-1) gdImageArc(img, (int)p->x, (int)p->y, (int)(2*r), (int)(2*r), 0, 360, oc);
return;
}
//
//create tile image
//
tile = gdImageCreate(x, y);
if(bc >= 0)
tile_bc = gdImageColorAllocate(tile, style->backgroundcolor.red, style->backgroundcolor.green, style->backgroundcolor.blue);
else {
tile_bc = gdImageColorAllocate(tile, gdImageRed(img, 0), gdImageGreen(img, 0), gdImageBlue(img, 0));
gdImageColorTransparent(tile,0);
}
tile_fc = gdImageColorAllocate(tile, style->color.red, style->color.green, style->color.blue);
//
//draw in the tile image
//
if(symbol->filled) {
for(i=0;i < symbol->numpoints;i++) {
sPoints[i].x = MS_NINT(d*symbol->points[i].x);
sPoints[i].y = MS_NINT(d*symbol->points[i].y);
}
gdImageFilledPolygon(tile, sPoints, symbol->numpoints, tile_fc);
} else { // shade is a vector drawing //
oldpnt.x = MS_NINT(d*symbol->points[0].x); // convert first point in shade smbol //
oldpnt.y = MS_NINT(d*symbol->points[0].y);
// step through the shade symbol //
for(i=1;i < symbol->numpoints;i++) {
if((symbol->points[i].x < 0) && (symbol->points[i].y < 0)) {
oldpnt.x = MS_NINT(d*symbol->points[i].x);
oldpnt.y = MS_NINT(d*symbol->points[i].y);
} else {
if((symbol->points[i-1].x < 0) && (symbol->points[i-1].y < 0)) { // Last point was PENUP, now a new beginning //
oldpnt.x = MS_NINT(d*symbol->points[i].x);
oldpnt.y = MS_NINT(d*symbol->points[i].y);
} else {
newpnt.x = MS_NINT(d*symbol->points[i].x);
newpnt.y = MS_NINT(d*symbol->points[i].y);
gdImageLine(tile, oldpnt.x, oldpnt.y, newpnt.x, newpnt.y, tile_fc);
oldpnt = newpnt;
}
}
} // end for loop //
}
//
//Fill the polygon in the main image
//
gdImageSetTile(img, tile);
break;
default:
break;
}
//
//Fill the polygon in the main image
//
msImageFilledCircle(img, p, r, imTiled);
if(oc>-1) gdImageArc(img, (int)p->x, (int)p->y, (int)(2*r), (int)(2*r), 0, 360, oc);
if(tile) gdImageDestroy(tile);
*/
return;
}
/* ------------------------------------------------------------------------- */
/* Draw a single marker symbol of the specified size and color */
/* ------------------------------------------------------------------------- */
void msDrawMarkerSymbolIM(symbolSetObj *symbolset, imageObj* img, pointObj *p, styleObj *style, double scalefactor)
{
symbolObj *symbol;
/* int offset_x, offset_y, x, y;
int j;
gdPoint oldpnt,newpnt;
gdPoint mPoints[MS_MAXVECTORPOINTS];
gdImagePtr tmp;
int tmp_fc=-1, tmp_bc, tmp_oc=-1;
*/ int fc, bc, oc;
/* double d;
int bbox[8];
rectObj rect;
char *font=NULL;
*/
int ox, oy;
double size;
DEBUG_IF printf("msDrawMarkerSymbolIM\n<BR>");
/* skip this, we don't do text */
if(!p) return;