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Diffstat (limited to 'src/cairo/cdcaironative_win32.c')
-rw-r--r--src/cairo/cdcaironative_win32.c160
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