1 files changed, 117 insertions, 0 deletions
diff --git a/src/win32/cdwemf.c b/src/win32/cdwemf.c
new file mode 100644
index 0000000..ad037c9
--- /dev/null
+++ b/src/win32/cdwemf.c
@@ -0,0 +1,117 @@
+/** \file
+ * \brief Windows EMF Driver
+ *
+ * See Copyright Notice in cd.h
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "cdwin.h"
+#include "cdemf.h"
+
+
+
+static void cdkillcanvas (cdCtxCanvas* ctxcanvas)
+{
+  HENHMETAFILE hmf;
+  
+  cdwKillCanvas(ctxcanvas);
+  
+  hmf = CloseEnhMetaFile(ctxcanvas->hDC);
+  DeleteEnhMetaFile(hmf);
+  
+  memset(ctxcanvas, 0, sizeof(cdCtxCanvas));
+  free(ctxcanvas);
+}
+
+/*
+%F cdCreateCanvas para EMF.
+O DC é um EMF em memoria.
+*/
+static void cdcreatecanvas(cdCanvas* canvas, void* data)
+{
+  cdCtxCanvas* ctxcanvas;
+  char* strdata = (char*)data;
+  int w = 0, h = 0;
+  double xres, yres;
+  FILE* file;
+  char filename[10240] = "";
+  HDC ScreenDC, hDC;
+  RECT rect;
+  
+  /* Inicializa parametros */
+  if (strdata == NULL) 
+    return;
+
+  strdata += cdGetFileName(strdata, filename);
+  if (filename[0] == 0)
+    return;
+ 
+  sscanf(strdata,"%dx%d", &w, &h); 
+  if (w == 0 || h == 0)
+    return;
+  
+  /* Verifica se o arquivo pode ser aberto para escrita */
+  file = fopen(filename, "wb");
+  if (file == NULL) return;
+  fclose(file);
+  
+  ScreenDC = GetDC(NULL);
+  /* LOGPIXELS can not be used for EMF */
+  xres = (double)GetDeviceCaps(ScreenDC, HORZRES) / (double)GetDeviceCaps(ScreenDC, HORZSIZE);
+  yres = (double)GetDeviceCaps(ScreenDC, VERTRES) / (double)GetDeviceCaps(ScreenDC, VERTSIZE);
+  rect.left = 0;
+  rect.top = 0;
+  rect.right = (int)(100. * w / xres);
+  rect.bottom = (int)(100. * h / yres);
+  hDC = CreateEnhMetaFile(ScreenDC,filename,&rect,NULL);
+  ReleaseDC(NULL, ScreenDC);
+  
+  if(!hDC)
+    return;
+  
+  /* Inicializa driver WIN32 */
+  ctxcanvas = cdwCreateCanvas(canvas, NULL, hDC, CDW_EMF);
+
+  canvas->w = w;
+  canvas->h = h;
+  canvas->xres = xres;
+  canvas->yres = yres;
+  canvas->w_mm = ((double)w) / xres;
+  canvas->h_mm = ((double)h) / yres;
+  canvas->bpp = 24;
+  ctxcanvas->clip_pnt[2].x = ctxcanvas->clip_pnt[1].x = canvas->w - 1;
+  ctxcanvas->clip_pnt[3].y = ctxcanvas->clip_pnt[2].y = canvas->h - 1;
+}
+
+static void cdinittable(cdCanvas* canvas)
+{
+  cdwInitTable(canvas);
+  
+  canvas->cxKillCanvas = cdkillcanvas;
+}
+
+static cdContext cdEMFContext =
+{
+  CD_CAP_ALL & ~(CD_CAP_CLEAR | CD_CAP_YAXIS | 
+                 CD_CAP_IMAGERGBA | CD_CAP_GETIMAGERGB | CD_CAP_IMAGESRV | 
+                 CD_CAP_FPRIMTIVES ),
+  0,
+  cdcreatecanvas,  
+  cdinittable,
+  cdplayEMF,          
+  cdregistercallbackEMF
+};
+
+cdContext* cdContextEMF(void)
+{
+  if (cdUseContextPlus(CD_QUERY))
+  {
+    cdContext* ctx = cdGetContextPlus(CD_CTX_EMF);
+    if (ctx != NULL)
+      return ctx;
+  }
+
+  return &cdEMFContext;
+}