diff options
Diffstat (limited to 'src/formula.cpp')
| -rw-r--r-- | src/formula.cpp | 46 |
1 files changed, 39 insertions, 7 deletions
diff --git a/src/formula.cpp b/src/formula.cpp index d7e444c..f35fd47 100644 --- a/src/formula.cpp +++ b/src/formula.cpp @@ -17,6 +17,9 @@ #include <stdlib.h> #include <unistd.h> +#ifdef _WIN32 +#include <windows.h> +#endif #include "qtbc.h" #include <qfile.h> @@ -165,29 +168,58 @@ void FormulaList::generateBitmaps(const char *path) const double scaleFactor = 16.0/3.0; int gx = (((int)((x2-x1)*scaleFactor))+3)&~2; int gy = (((int)((y2-y1)*scaleFactor))+3)&~2; - char gsCmd[256]; // Then we run ghostscript to convert the postscript to a pixmap // The pixmap is a truecolor image, where only black and white are // used. #ifdef _WIN32 - sprintf(gsCmd,"gswin32 -q -g%dx%d -r%dx%dx -sDEVICE=ppmraw " - "-sOutputFile=%s.pnm -DNOPAUSE -- %s.ps", - gx,gy,(int)(scaleFactor*72),(int)(scaleFactor*72), - formBase.data(),formBase.data() + char gsArgs[256]; + sprintf(gsArgs,"-q -g%dx%d -r%dx%dx -sDEVICE=ppmraw " + "-sOutputFile=%s.pnm -DNOPAUSE -- %s.ps", + gx,gy,(int)(scaleFactor*72),(int)(scaleFactor*72), + formBase.data(),formBase.data() ); + // gswin32 is a GUI api which will pop up a window and run + // asynchronously. To prevent both, we use ShellExecuteEx and + // WaitForSingleObject (thanks to Robert Golias for the code) + SHELLEXECUTEINFO sInfo = { + sizeof(SHELLEXECUTEINFO), /* structure size */ + SEE_MASK_NOCLOSEPROCESS, /* leave the process running */ + NULL, /* window handle */ + NULL, /* action to perform: open */ + "gswin32.exe", /* file to execute */ + gsArgs, /* argument list */ + NULL, /* use current working dir */ + SW_HIDE /* minimize on start-up */ + 0, /* application instance handle */ + NULL, /* ignored: id list */ + NULL, /* ignored: class name */ + NULL, /* ignored: key class */ + 0, /* ignored: hot key */ + NULL, /* ignored: icon */ + NULL /* resulting application handle */ + }; + if (!ShellExecuteEx(&sInfo)) + { + err("Problem running ghostscript. Check your installation!\n"); + return; + } + else if (sInfo.hProcess) /* executable was launched, wait for it to finish */ + { + WaitForSingleObject(sInfo.hProcess,INFINITE); + } #else + char gsCmd[256]; sprintf(gsCmd,"gs -q -g%dx%d -r%dx%dx -sDEVICE=ppmraw " "-sOutputFile=%s.pnm -DNOPAUSE -- %s.ps", gx,gy,(int)(scaleFactor*72),(int)(scaleFactor*72), formBase.data(),formBase.data() ); -#endif - //printf("Running ghostscript...\n"); if (iSystem(gsCmd)!=0) { err("Problem running ghostscript. Check your installation!\n"); return; } +#endif f.setName(formBase+".pnm"); uint imageX=0,imageY=0; // we read the generated image again, to obtain the pixel data. |