diff options
Diffstat (limited to 'generic/tkCanvPs.c')
| -rw-r--r-- | generic/tkCanvPs.c | 50 |
1 files changed, 36 insertions, 14 deletions
diff --git a/generic/tkCanvPs.c b/generic/tkCanvPs.c index 643f2a9..b72ded9 100644 --- a/generic/tkCanvPs.c +++ b/generic/tkCanvPs.c @@ -11,7 +11,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tkCanvPs.c,v 1.10 2002/08/05 04:30:38 dgp Exp $ + * RCS: @(#) $Id: tkCanvPs.c,v 1.11 2002/10/10 07:25:24 hobbs Exp $ */ #include "tkInt.h" @@ -23,6 +23,20 @@ */ /* + * The following definition is used in generating postscript for images + * and windows. + */ + +typedef struct TkColormapData { /* Hold color information for a window */ + int separated; /* Whether to use separate color bands */ + int color; /* Whether window is color or black/white */ + int ncolors; /* Number of color values stored */ + XColor *colors; /* Pixel value -> RGB mappings */ + int red_mask, green_mask, blue_mask; /* Masks and shifts for each */ + int red_shift, green_shift, blue_shift; /* color band */ +} TkColormapData; + +/* * One of the following structures is created to keep track of Postscript * output being generated. It consists mostly of information provided on * the widget command line. @@ -458,12 +472,13 @@ TkCanvPostscriptCmd(canvasPtr, interp, argc, argv) /* * Insert the prolog */ - Tcl_AppendResult(interp, Tcl_GetVar(interp,"::tk::ps_preamable",TCL_GLOBAL_ONLY), (char *) NULL); + Tcl_AppendResult(interp, Tcl_GetVar(interp,"::tk::ps_preamable", + TCL_GLOBAL_ONLY), (char *) NULL); + if (psInfo.chan != NULL) { Tcl_Write(psInfo.chan, Tcl_GetStringResult(interp), -1); Tcl_ResetResult(canvasPtr->interp); } - /* *----------------------------------------------------------- @@ -1118,13 +1133,24 @@ TkImageGetColor(cdata, pixel, red, green, blue) int r = (pixel & cdata->red_mask) >> cdata->red_shift; int g = (pixel & cdata->green_mask) >> cdata->green_shift; int b = (pixel & cdata->blue_mask) >> cdata->blue_shift; - *red = cdata->colors[r].red / 65535.0; +#ifdef WIN32 + /* + * Because XQueryColors is an empty stub on Windows, we need + * to just make this simple calculation. The TkColormapData + * XColor data is otherwise bogus on Windows. -- hobbs + */ + *red = (double)r / 255.0; + *green = (double)g / 255.0; + *blue = (double)b / 255.0; +#else + *red = cdata->colors[r].red / 65535.0; *green = cdata->colors[g].green / 65535.0; - *blue = cdata->colors[b].blue / 65535.0; + *blue = cdata->colors[b].blue / 65535.0; +#endif } else { - *red = cdata->colors[pixel].red / 65535.0; + *red = cdata->colors[pixel].red / 65535.0; *green = cdata->colors[pixel].green / 65535.0; - *blue = cdata->colors[pixel].blue / 65535.0; + *blue = cdata->colors[pixel].blue / 65535.0; } } @@ -1218,7 +1244,6 @@ TkPostscriptImage(interp, tkwin, psInfo, ximage, x, y, width, height) else cdata.color = 1; - XQueryColors(Tk_Display(tkwin), cmap, cdata.colors, ncolors); /* @@ -1241,8 +1266,7 @@ TkPostscriptImage(interp, tkwin, psInfo, ximage, x, y, width, height) * Postscript interpreter). */ - switch (level) - { + switch (level) { case 0: bytesPerLine = (width + 7) / 8; maxWidth = 240000; break; case 1: bytesPerLine = width; maxWidth = 60000; break; case 2: bytesPerLine = 3 * width; maxWidth = 20000; break; @@ -1323,9 +1347,7 @@ TkPostscriptImage(interp, tkwin, psInfo, ximage, x, y, width, height) TkImageGetColor(&cdata, XGetPixel(ximage, xx, yy), &red, &green, &blue); sprintf(buffer, "%02X", (int) floor(0.5 + 255.0 * - (0.30 * red + - 0.59 * green + - 0.11 * blue))); + (0.30 * red + 0.59 * green + 0.11 * blue))); Tcl_AppendResult(interp, buffer, (char *) NULL); lineLen += 2; if (lineLen > 60) { @@ -1340,7 +1362,7 @@ TkPostscriptImage(interp, tkwin, psInfo, ximage, x, y, width, height) * Finally, color mode. Here, just output the red, green, * and blue values directly. */ - for (xx = x; xx < x+width; xx++) { + for (xx = x; xx < x+width; xx++) { TkImageGetColor(&cdata, XGetPixel(ximage, xx, yy), &red, &green, &blue); sprintf(buffer, "%02X%02X%02X", |