New Cairo driver

1 files changed, 160 insertions, 0 deletions

diff --git a/src/cairo/cdcaironative_win32.c b/src/cairo/cdcaironative_win32.c
new file mode 100644
index 0000000..b685d12
--- /dev/null
+++ b/src/cairo/cdcaironative_win32.c
@@ -0,0 +1,160 @@
+/** \file
+* \brief Cairo Native Window Driver
+*
+* See Copyright Notice in cd.h
+*/
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "cdcairoctx.h"
+#include "cdnative.h"
+
+#include <windows.h>
+#include <cairo-win32.h>
+
+
+static void cdkillcanvas(cdCtxCanvas *ctxcanvas)
+{
+  if (ctxcanvas->hDC)
+    ReleaseDC(ctxcanvas->hWnd, ctxcanvas->hDC);
+
+  cdcairoKillCanvas(ctxcanvas);
+}
+
+int cdactivate(cdCtxCanvas *ctxcanvas)
+{
+  if (ctxcanvas->hWnd)
+  {
+    RECT rect;
+    GetClientRect(ctxcanvas->hWnd, &rect);
+    ctxcanvas->canvas->w = rect.right - rect.left;
+    ctxcanvas->canvas->h = rect.bottom - rect.top;
+  
+    ctxcanvas->canvas->bpp = cdGetScreenColorPlanes();
+  }
+
+  /* Se nao e' ownwer, tem que restaurar o contexto */
+  if (!ctxcanvas->isOwnedDC)
+  {
+    cairo_surface_t *surface;
+
+    if (ctxcanvas->hDC) /* deactivate not called */
+    {
+      cairo_destroy(ctxcanvas->cr);
+      ReleaseDC(ctxcanvas->hWnd, ctxcanvas->hDC);
+    }
+
+    ctxcanvas->hDC = GetDC(ctxcanvas->hWnd);
+    surface = cairo_win32_surface_create(ctxcanvas->hDC);
+    ctxcanvas->cr = cairo_create(surface);
+    cairo_surface_destroy(surface);
+  }
+
+  ctxcanvas->canvas->w_mm = ((double)ctxcanvas->canvas->w) / ctxcanvas->canvas->xres;
+  ctxcanvas->canvas->h_mm = ((double)ctxcanvas->canvas->h) / ctxcanvas->canvas->yres;
+
+  if (ctxcanvas->canvas->use_matrix)
+    ctxcanvas->canvas->cxTransform(ctxcanvas, ctxcanvas->canvas->matrix);
+
+  return CD_OK;
+}
+
+static void cddeactivate(cdCtxCanvas *ctxcanvas)
+{
+  /* If not owner, release the DC */
+  if (!ctxcanvas->isOwnedDC && ctxcanvas->hDC)
+  {
+    cairo_destroy(ctxcanvas->cr);
+    ReleaseDC(ctxcanvas->hWnd, ctxcanvas->hDC);
+    ctxcanvas->cr = NULL;
+    ctxcanvas->hDC = NULL;
+  }
+}
+
+static void cdcreatecanvas(cdCanvas* canvas, void *data)
+{
+  cdCtxCanvas* ctxcanvas;
+  cairo_surface_t *surface;
+
+  HWND hWnd = (HWND)data;
+  HDC ScreenDC, hDC;
+  HRGN clip_hrgn;
+
+  ScreenDC = GetDC(NULL);
+  canvas->bpp = GetDeviceCaps(ScreenDC, BITSPIXEL);
+  canvas->xres = (float)(((double)GetDeviceCaps(ScreenDC, LOGPIXELSX)) / 25.4);
+  canvas->yres = (float)(((double)GetDeviceCaps(ScreenDC, LOGPIXELSY)) / 25.4);
+  ReleaseDC(NULL, ScreenDC);
+
+  if (!data)
+  {
+    hDC = GetDC(NULL);
+    canvas->w = GetDeviceCaps(hDC, HORZRES);
+    canvas->h = GetDeviceCaps(hDC, VERTRES);
+  }
+  else 
+  {
+    RECT rect;
+    hWnd = (HWND)data;
+
+    hDC = GetDC(hWnd);
+  
+    GetClientRect(hWnd, &rect);
+    canvas->w = rect.right - rect.left;
+    canvas->h = rect.bottom - rect.top;
+  }
+
+  /* initial clip extents controls size */
+  clip_hrgn = CreateRectRgn(0, 0, canvas->w, canvas->h);
+  SelectClipRgn(hDC, clip_hrgn);
+  DeleteObject(clip_hrgn);
+
+  surface = cairo_win32_surface_create(hDC);
+
+  canvas->w_mm = ((double)canvas->w) / canvas->xres;
+  canvas->h_mm = ((double)canvas->h) / canvas->yres;
+
+  ctxcanvas = cdcairoCreateCanvas(canvas, cairo_create(surface));
+  cairo_surface_destroy(surface);
+
+  ctxcanvas->hDC = hDC;
+  ctxcanvas->hWnd = hWnd;
+
+  if (hWnd)
+  {
+    LONG style = GetClassLong(hWnd, GCL_STYLE);
+    ctxcanvas->isOwnedDC = (int) ((style & CS_OWNDC) || (style & CS_CLASSDC));
+  }
+  else
+    ctxcanvas->isOwnedDC = 1;
+}
+
+static void cdinittable(cdCanvas* canvas)
+{
+  cdcairoInitTable(canvas);
+
+  canvas->cxKillCanvas = cdkillcanvas;
+  canvas->cxActivate = cdactivate;
+  canvas->cxDeactivate = cddeactivate;
+}
+
+/******************************************************/
+
+static cdContext cdNativeWindowContext =
+{
+  CD_CAP_ALL & ~(CD_CAP_PLAY | CD_CAP_YAXIS | CD_CAP_REGION | CD_CAP_WRITEMODE | CD_CAP_PALETTE | CD_CAP_FPRIMTIVES),
+  1,
+  cdcreatecanvas,
+  cdinittable,
+  NULL,
+  NULL,
+};
+
+
+cdContext* cdContextCairoNativeWindow(void)
+{
+  return &cdNativeWindowContext;
+}
+
+// cairo_win32_printing_surface_create  CD_PRINTER