Evan Stade : gdiplus: Draw custom dashes.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 1f61f4821fb7cd1004b04355306d341a4fc7f216
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=1f61f4821fb7cd1004b0435530...

Author: Evan Stade 
Date:   Fri Jul 27 16:07:39 2007 -0700

gdiplus: Draw custom dashes.

---

dlls/gdiplus/gdiplus_private.h |    1 +
 dlls/gdiplus/graphics.c        |   20 ++++++++++++++++++--
 dlls/gdiplus/pen.c             |    8 ++------
 3 files changed, 21 insertions(+), 8 deletions(-)

diff --git a/dlls/gdiplus/gdiplus_private.h b/dlls/gdiplus/gdiplus_private.h
index f20ea3d..b9420a3 100644
--- a/dlls/gdiplus/gdiplus_private.h
+++ b/dlls/gdiplus/gdiplus_private.h
@@ -26,6 +26,7 @@

#define GP_DEFAULT_PENSTYLE (PS_GEOMETRIC | PS_SOLID | PS_ENDCAP_FLAT | PS_JOIN_MITER)
 #define MAX_ARC_PTS (13)
+#define MAX_DASHLEN (16) /* this is a limitation of gdi */

COLORREF ARGB2COLORREF(ARGB color);
 extern INT arc2polybezier(GpPointF * points, REAL x1, REAL y1, REAL x2, REAL y2,
diff --git a/dlls/gdiplus/graphics.c b/dlls/gdiplus/graphics.c
index 3836476..cb56c73 100644
--- a/dlls/gdiplus/graphics.c
+++ b/dlls/gdiplus/graphics.c
@@ -98,8 +98,9 @@ static INT prepare_dc(GpGraphics *graphics, GpPen *pen)
 {
     HPEN gdipen;
     REAL width;
-    INT save_state = SaveDC(graphics->hdc);
+    INT save_state = SaveDC(graphics->hdc), i, numdashes;
     GpPointF pt[2];
+    DWORD dash_array[MAX_DASHLEN];

EndPath(graphics->hdc);

@@ -116,7 +117,22 @@ static INT prepare_dc(GpGraphics *graphics, GpPen *pen)
     width *= pen->width * convert_unit(graphics->hdc,
                           pen->unit == UnitWorld ? graphics->unit : pen->unit);

-    gdipen = ExtCreatePen(pen->style, roundr(width), &pen->brush->lb, 0, NULL);
+    if(pen->dash == DashStyleCustom){
+        numdashes = min(pen->numdashes, MAX_DASHLEN);
+
+        TRACE("dashes are: ");
+        for(i = 0; i < numdashes; i++){
+            dash_array[i] = roundr(width * pen->dashes[i]);
+            TRACE("%d, ", dash_array[i]);
+        }
+        TRACE("\n and the pen style is %x\n", pen->style);
+
+        gdipen = ExtCreatePen(pen->style, roundr(width), &pen->brush->lb,
+                              numdashes, dash_array);
+    }
+    else
+        gdipen = ExtCreatePen(pen->style, roundr(width), &pen->brush->lb, 0, NULL);
+
     SelectObject(graphics->hdc, gdipen);

return save_state;
diff --git a/dlls/gdiplus/pen.c b/dlls/gdiplus/pen.c
index e582f76..7d7237b 100644
--- a/dlls/gdiplus/pen.c
+++ b/dlls/gdiplus/pen.c
@@ -29,8 +29,6 @@ WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);

static DWORD gdip_to_gdi_dash(GpDashStyle dash)
 {
-    static int calls;
-
     switch(dash){
         case DashStyleSolid:
             return PS_SOLID;
@@ -43,9 +41,7 @@ static DWORD gdip_to_gdi_dash(GpDashStyle dash)
         case DashStyleDashDotDot:
             return PS_DASHDOTDOT;
         case DashStyleCustom:
-            if(!(calls++))
-                FIXME("DashStyleCustom not implemented\n");
-            return PS_SOLID;
+            return PS_USERSTYLE;
         default:
             ERR("Not a member of GpDashStyle enumeration\n");
             return 0;
@@ -240,7 +236,7 @@ GpStatus WINGDIPAPI GdipSetPenDashArray(GpPen *pen, GDIPCONST REAL *dash,
         return OutOfMemory;
     }

-    pen->dash = DashStyleCustom;
+    GdipSetPenDashStyle(pen, DashStyleCustom);
     memcpy(pen->dashes, dash, count * sizeof(REAL));
     pen->numdashes = count;