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metafile.c
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metafile.c
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/*
* Copyright (C) 2007 Novell, Inc (http://www.novell.com)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
* and associated documentation files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
* NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
* Sebastien Pouliot <sebastien@ximian.com>
*/
#include "metafile-private.h"
#include "solidbrush-private.h"
#include "graphics.h"
#include "graphics-path-private.h"
#include "pen.h"
//#define DEBUG_METAFILE
/* http://wvware.sourceforge.net/caolan/SaveDC.html */
GpStatus
gdip_metafile_SaveDC (MetafilePlayContext *context)
{
#ifdef DEBUG_METAFILE
printf ("SaveDC");
#endif
/* TODO */
return Ok;
}
/* http://wvware.sourceforge.net/caolan/SetBkMode.html */
GpStatus
gdip_metafile_SetBkMode (MetafilePlayContext *context, DWORD bkMode)
{
#ifdef DEBUG_METAFILE
printf ("SetBkMode %d", bkMode);
#endif
/* TODO - currently unused elsewhere */
context->bk_mode = bkMode;
return Ok;
}
/* http://wvware.sourceforge.net/caolan/SetMapMode.html */
GpStatus
gdip_metafile_SetMapMode (MetafilePlayContext *context, DWORD mode)
{
GpStatus status;
float scale;
#ifdef DEBUG_METAFILE
printf ("SetMapMode %d", mode);
#endif
context->map_mode = mode;
switch (mode) {
case MM_HIENGLISH:
/* 1 logical unit == 0.001 inch */
scale = gdip_get_display_dpi () * 0.001;
break;
case MM_LOENGLISH:
/* 1 logical unit == 0.01 inch */
scale = gdip_get_display_dpi () * 0.01;
break;
case MM_HIMETRIC:
/* 1 logical unit == 0.01 mm */
scale = gdip_get_display_dpi () / METAFILE_DIMENSION_FACTOR;
break;
case MM_LOMETRIC:
/* 1 logical unit == 0.1 mm */
scale = 10 * gdip_get_display_dpi () / METAFILE_DIMENSION_FACTOR;
break;
case MM_TWIPS:
/* 1 logical point == 1/1440 inch (1/20 of a "old" printer point ;-) */
scale = gdip_get_display_dpi () / 1440;
break;
case MM_TEXT:
default:
/* 1 logical unit == 1 pixel */
scale = 1.0f;
context->map_mode = MM_TEXT;
break;
case MM_ISOTROPIC:
case MM_ANISOTROPIC:
/* SetWindowExt will calculate the correct ratio */
return Ok;
}
/* this isn't cumulative (and we get a lot of "junk" calls) */
GdipSetWorldTransform (context->graphics, &context->matrix);
status = GdipScaleWorldTransform (context->graphics, scale, scale, MatrixOrderPrepend);
#ifdef DEBUG_METAFILE_2
printf ("\n\tGdipScaleWorldTransform sx %g, sy %g (status %d)", scale, scale, status);
#endif
return status;
}
/* http://wvware.sourceforge.net/caolan/SetROP2.html */
GpStatus
gdip_metafile_SetROP2 (MetafilePlayContext *context, DWORD rop)
{
#ifdef DEBUG_METAFILE
printf ("SetROP2 %d", rop);
#endif
/* TODO */
return Ok;
}
/* http://www.ousob.com/ng/win2api/ng30859.php */
GpStatus
gdip_metafile_SetRelabs (MetafilePlayContext *context, DWORD mode)
{
#ifdef DEBUG_METAFILE
printf ("SetRelabs %d", mode);
#endif
/* TODO */
return Ok;
}
/* http://wvware.sourceforge.net/caolan/SetPolyFillMode.html */
GpStatus
gdip_metafile_SetPolyFillMode (MetafilePlayContext *context, DWORD fillmode)
{
#ifdef DEBUG_METAFILE
printf ("SetPolyFillMode %d", fillmode);
#endif
switch (fillmode) {
case WINDING:
context->fill_mode = FillModeWinding;
break;
default:
g_warning ("Unknown fillmode %d, assuming ALTERNATE", fillmode);
/* fall through */
case ALTERNATE:
context->fill_mode = FillModeAlternate;
break;
}
return Ok;
}
/* http://wvware.sourceforge.net/caolan/SetStretchBltMode.html */
GpStatus
gdip_metafile_SetStretchBltMode (MetafilePlayContext *context, int iStretchMode)
{
#ifdef DEBUG_METAFILE
printf ("SetStretchBltMode %d", iStretchMode);
#endif
/* TODO */
return Ok;
}
/* http://wvware.sourceforge.net/caolan/RestoreDC.html */
GpStatus
gdip_metafile_RestoreDC (MetafilePlayContext *context)
{
#ifdef DEBUG_METAFILE
printf ("RestoreDC");
#endif
/* TODO */
return Ok;
}
/* http://wvware.sourceforge.net/caolan/SelectObject.html */
GpStatus
gdip_metafile_SelectObject (MetafilePlayContext *context, DWORD slot)
{
// EMF have some stock objects that do not requires creation
if (slot & ENHMETA_STOCK_OBJECT) {
#ifdef DEBUG_METAFILE
printf ("SelectObject stock #%X", slot);
#endif
switch (slot - ENHMETA_STOCK_OBJECT) {
case WHITE_BRUSH:
case LTGRAY_BRUSH:
case GRAY_BRUSH:
case DKGRAY_BRUSH:
case BLACK_BRUSH:
case NULL_BRUSH:
context->selected_brush = slot;
break;
case WHITE_PEN:
case BLACK_PEN:
case NULL_PEN:
context->selected_pen = slot;
break;
case OEM_FIXED_FONT:
case ANSI_FIXED_FONT:
case ANSI_VAR_FONT:
case SYSTEM_FONT:
case DEVICE_DEFAULT_FONT:
case SYSTEM_FIXED_FONT:
context->selected_font = slot;
break;
case DEFAULT_PALETTE:
context->selected_palette = slot;
break;
default:
return InvalidParameter;
}
return Ok;
}
#ifdef DEBUG_METAFILE
printf ("SelectObject %d (out of %d slots)", slot, context->objects_count);
#endif
if (slot >= context->objects_count) {
g_warning ("SelectObject %d, invalid slot number.", slot);
return InvalidParameter;
}
/* FIXME - what's first ? the created object or what's in the slot ? */
switch (context->created.type) {
case METAOBJECT_TYPE_EMPTY:
/* if nothing is "created" (and not yet selected into a slot) then we "reselect" the object */
switch (context->objects [slot].type) {
case METAOBJECT_TYPE_EMPTY:
g_warning ("SelectObject %d, no created object, slot empty.", slot);
break;
case METAOBJECT_TYPE_PEN:
context->selected_pen = slot;
break;
case METAOBJECT_TYPE_BRUSH:
context->selected_brush = slot;
break;
}
return Ok;
case METAOBJECT_TYPE_PEN:
context->selected_pen = slot;
break;
case METAOBJECT_TYPE_BRUSH:
context->selected_brush = slot;
break;
}
context->objects [slot].type = context->created.type;
context->objects [slot].ptr = context->created.ptr;
context->created.type = METAOBJECT_TYPE_EMPTY;
context->created.ptr = NULL;
return Ok;
}
GpStatus
gdip_metafile_ModifyWorldTransform (MetafilePlayContext *context, XFORM *lpXform, DWORD iMode)
{
GpMatrix matrix;
GpMatrixOrder order;
switch (iMode) {
case MWT_IDENTITY:
/* This is a reset and it ignores lpXform in this case */
/* we can't use GdipResetWorldTransform as we still want the original parameters */
return GdipSetWorldTransform (context->graphics, &context->matrix);
case MWT_LEFTMULTIPLY:
order = MatrixOrderPrepend;
break;
case MWT_RIGHTMULTIPLY:
order = MatrixOrderPrepend;
break;
default:
return InvalidParameter;
}
if (!lpXform)
return InvalidParameter;
matrix.xx = lpXform->eM11;
matrix.yx = lpXform->eM12;
matrix.xy = lpXform->eM21;
matrix.yy = lpXform->eM22;
matrix.x0 = lpXform->eDx;
matrix.y0 = lpXform->eDy;
return GdipMultiplyWorldTransform (context->graphics, &matrix, order);
}
/* http://wvware.sourceforge.net/caolan/SetTextAlign.html */
GpStatus
gdip_metafile_SetTextAlign (MetafilePlayContext *context, DWORD textalign)
{
#ifdef DEBUG_METAFILE
printf ("SetTextAlign %d", textalign);
#endif
/* TODO */
return Ok;
}
/* http://wvware.sourceforge.net/caolan/DeleteObject.html */
GpStatus
gdip_metafile_DeleteObject (MetafilePlayContext *context, DWORD slot)
{
GpStatus status = Ok;
GpMetafile *metafile = context->metafile;
MetaObject *obj;
if (slot >= context->objects_count) {
g_warning ("DeleteObject failure");
return InvalidParameter;
}
obj = &context->objects [slot];
switch (obj->type) {
case METAOBJECT_TYPE_PEN:
status = GdipDeletePen ((GpPen*)obj->ptr);
break;
case METAOBJECT_TYPE_BRUSH:
status = GdipDeleteBrush ((GpBrush*)obj->ptr);
break;
case METAOBJECT_TYPE_EMPTY:
break;
}
#ifdef DEBUG_METAFILE
printf ("DeleteObject %d (type %d, ptr %p, status %d)", slot, obj->type, obj->ptr, status);
#endif
obj->type = METAOBJECT_TYPE_EMPTY;
obj->ptr = NULL;
return status;
}
/* http://wvware.sourceforge.net/caolan/SetBkColor.html */
GpStatus
gdip_metafile_SetBkColor (MetafilePlayContext *context, DWORD color)
{
#ifdef DEBUG_METAFILE
printf ("SetBkColor %X", color);
#endif
/* TODO - currently unused elsewhere */
context->bk_color = color;
return Ok;
}
/* http://wvware.sourceforge.net/caolan/SetWindowOrg.html */
GpStatus
gdip_metafile_SetWindowOrg (MetafilePlayContext *context, int x, int y)
{
#ifdef DEBUG_METAFILE
printf ("SetWindowOrg X: %d, Y: %d", x, y);
#endif
/* TODO */
return Ok;
}
/* http://wvware.sourceforge.net/caolan/SetWindowExt.html */
GpStatus
gdip_metafile_SetWindowExt (MetafilePlayContext *context, int height, int width)
{
GpStatus status;
float sx, sy;
#ifdef DEBUG_METAFILE
printf ("SetWindowExt height %d, width %d", height, width);
#endif
switch (context->map_mode) {
case MM_ISOTROPIC:
sx = (float)context->metafile->metafile_header.Width / width;
sy = (float)context->metafile->metafile_header.Height / height;
/* keeps ratio to 1:1 */
if (sx < sy)
sy = sx;
break;
case MM_ANISOTROPIC:
sx = (float)context->metafile->metafile_header.Width / width;
sy = (float)context->metafile->metafile_header.Height / height;
break;
default:
/* most cases are handled by SetMapMode */
return Ok;
}
/* this isn't cumulative (and we get a lot of "junk" calls) */
GdipSetWorldTransform (context->graphics, &context->matrix);
status = GdipScaleWorldTransform (context->graphics, sx, sy, MatrixOrderPrepend);
#ifdef DEBUG_METAFILE_2
printf ("\n\tGdipScaleWorldTransform sx %g, sy %g (status %d)", sx, sy, status);
#endif
return status;
}
/* http://wvware.sourceforge.net/caolan/LineTo.html */
GpStatus
gdip_metafile_LineTo (MetafilePlayContext *context, int x, int y)
{
GpStatus status;
#ifdef DEBUG_METAFILE
printf ("LineTo %s%d, %d", context->use_path ? "Path " : " ", x, y);
#endif
if (context->use_path) {
status = GdipAddPathLine (context->path, context->current_x, context->current_y, x, y);
} else {
GpPen *pen = gdip_metafile_GetSelectedPen (context);
status = GdipDrawLine (context->graphics, pen, context->current_x, context->current_y, x, y);
}
context->current_x = x;
context->current_y = y;
return status;
}
/* http://wvware.sourceforge.net/caolan/MoveTo.html */
GpStatus
gdip_metafile_MoveTo (MetafilePlayContext *context, int x, int y)
{
#ifdef DEBUG_METAFILE
printf ("MoveTo X: %d, Y: %d", x, y);
#endif
/* seems to always be called before Arc but, according to documentation,
Arc doesn't depend on the current cursor position */
context->current_x = x;
context->current_y = y;
return Ok;
}
GpStatus
gdip_metafile_SetMiterLimit (MetafilePlayContext *context, float eNewLimit, float *peOldLimit)
{
if (peOldLimit)
*peOldLimit = context->miter_limit;
/* GDI+ keeps the miter limit with it's pen, not the context, definition */
context->miter_limit = eNewLimit;
return Ok;
}
/* http://wvware.sourceforge.net/caolan/CreatePenIndirect.html */
GpStatus
gdip_metafile_CreatePenIndirect (MetafilePlayContext *context, DWORD style, DWORD width, DWORD color)
{
GpStatus status;
GpPen *pen = NULL;
GpLineCap line_cap = LineCapRound;
GpLineJoin line_join = LineJoinRound;
int s = style & PS_STYLE_MASK;
#ifdef DEBUG_METAFILE
printf ("CreatePenIndirect style %d, width %d, color %X", style, width, color);
#endif
if (s == PS_NULL)
color &= 0x00FFFFFF;
else
color |= 0xFF000000;
if (width > 1) {
/* style is always solid for width > 1 */
status = GdipCreatePen1 (color, width, UnitPixel, &pen);
} else {
/* 0 isn't a mistake, this ensure we have a "real" pixel-wide line drawn */
status = GdipCreatePen1 (color, 0, UnitPixel, &pen);
switch (s) {
default:
g_warning ("Invalid pen style %d, style & PS_STYLE_MASK %d", style, s);
/* fall through */
case PS_NULL:
case DashStyleSolid:
break;
case DashStyleDash:
case DashStyleDot:
case DashStyleDashDot:
case DashStyleDashDotDot:
if (status == Ok)
status = GdipSetPenDashStyle (pen, s);
break;
}
}
if (status != Ok) {
if (pen)
GdipDeletePen (pen);
return status;
}
/* at this stage we got a pen, so we won't abort drawing on it's style */
s = (style & PS_ENDCAP_MASK);
switch (s) {
default:
g_warning ("Invalid pen endcap, style %d, (style & PS_ENDCAP_MASK) %d", style, s);
/* fall through */
case PS_ENDCAP_ROUND:
line_cap = LineCapRound;
break;
case PS_ENDCAP_SQUARE:
line_cap = LineCapSquare;
break;
case PS_ENDCAP_FLAT:
line_cap = LineCapFlat;
break;
}
GdipSetPenStartCap (pen, line_cap);
GdipSetPenEndCap (pen, line_cap);
s = (style & PS_JOIN_MASK);
switch (s) {
default:
g_warning ("Invalid pen join, style %d, (style & PS_JOIN_MASK) %d", style, s);
/* fall through */
case PS_JOIN_ROUND:
line_join = LineJoinRound;
break;
case PS_JOIN_BEVEL:
line_join = LineJoinBevel;
break;
case PS_JOIN_MITER:
line_join = LineJoinMiter;
break;
}
GdipSetPenLineJoin (pen, line_join);
context->created.type = METAOBJECT_TYPE_PEN;
context->created.ptr = pen;
return Ok;
}
GpStatus
gdip_metafile_ExtCreatePen (MetafilePlayContext *context, DWORD dwPenStyle, DWORD dwWidth, CONST LOGBRUSH *lplb,
DWORD dwStyleCount, CONST DWORD *lpStyle)
{
/* TODO - there's more cases to consider */
return gdip_metafile_CreatePenIndirect (context, dwPenStyle, dwWidth, lplb->lbColor);
}
/* http://wvware.sourceforge.net/caolan/CreateBrushIndirect.html */
GpStatus
gdip_metafile_CreateBrushIndirect (MetafilePlayContext *context, DWORD style, DWORD color, DWORD hatch)
{
GpStatus status = Ok;
GpSolidFill *brush;
switch (style) {
case BS_SOLID:
color |= 0xFF000000;
status = GdipCreateSolidFill (color, &brush);
break;
case BS_NULL:
color &= 0x00FFFFFF;
status = GdipCreateSolidFill (color, &brush);
break;
default:
g_warning ("gdip_metafile_CreateBrushIndirect unimplemented style %d", style);
status = GdipCreateSolidFill (color, &brush);
break;
}
#ifdef DEBUG_METAFILE
printf ("CreateBrushIndirect style %d, color %X, hatch %d (%p, status %d)", style, color, hatch, brush, status);
#endif
context->created.type = METAOBJECT_TYPE_BRUSH;
context->created.ptr = brush;
return status;
}
/* http://wvware.sourceforge.net/caolan/Arc.html */
GpStatus
gdip_metafile_Arc (MetafilePlayContext *context, int left, int top, int right, int bottom,
int xstart, int ystart, int xend, int yend)
{
#ifdef DEBUG_METAFILE
printf ("Arc left %d, top %d, right %d, bottom %d, xstart %d, ystart %d, xend %d, yend %d",
left, top, right, bottom, xstart, ystart, xend, yend);
#endif
/* don't draw if the bounds are empty (width or height) */
if ((right - left <= 0) || (bottom = top <= 0))
return Ok;
return GdipDrawArc (context->graphics, gdip_metafile_GetSelectedPen (context), left, top,
(right - left), (bottom - top), atan2 (ystart, xstart), atan2 (yend, xend));
}
/* http://wvware.sourceforge.net/caolan/ora-wmf.html */
GpStatus
gdip_metafile_StretchDIBits (MetafilePlayContext *context, int XDest, int YDest, int nDestWidth, int nDestHeight,
int XSrc, int YSrc, int nSrcWidth, int nSrcHeight, CONST void *lpBits, CONST BITMAPINFO *lpBitsInfo,
UINT iUsage, DWORD dwRop)
{
GpStatus status = OutOfMemory;
GpImage *image = NULL;
MemorySource ms;
#ifdef DEBUG_METAFILE
printf ("StretchDIBits\n\t[XDest %d, YDest %d, nDestWidth %d, nDestHeight %d]", XDest, YDest, nDestWidth, nDestHeight);
printf ("\n\t[XSrc %d, YSrc %d, nSrcWidth %d, nSrcHeight %d]", XSrc, YSrc, nSrcWidth, nSrcHeight);
printf ("\n\tlpBits %p, lpBitsInfo %p, iUsage %d, dwRop %d", lpBits, lpBitsInfo, iUsage, dwRop);
printf ("\n\tBITMAPINFO\n\t\tSize: %d", lpBitsInfo->bmiHeader.biSize);
printf ("\n\t\tWidth: %d", lpBitsInfo->bmiHeader.biWidth);
printf ("\n\t\tHeight: %d", lpBitsInfo->bmiHeader.biHeight);
printf ("\n\t\tPlanes: %d", lpBitsInfo->bmiHeader.biPlanes);
printf ("\n\t\tBitCount: %d", lpBitsInfo->bmiHeader.biBitCount);
printf ("\n\t\tCompression: %d", lpBitsInfo->bmiHeader.biCompression);
printf ("\n\t\tSizeImage: %d", lpBitsInfo->bmiHeader.biSizeImage);
printf ("\n\t\tXPelsPerMeter: %d", lpBitsInfo->bmiHeader.biXPelsPerMeter);
printf ("\n\t\tYPelsPerMeter: %d", lpBitsInfo->bmiHeader.biXPelsPerMeter);
printf ("\n\t\tClrUsed: %d", lpBitsInfo->bmiHeader.biClrUsed);
printf ("\n\t\tClrImportant: %d", lpBitsInfo->bmiHeader.biClrImportant);
#endif
ms.ptr = (BYTE*)lpBitsInfo;
ms.size = lpBitsInfo->bmiHeader.biSizeImage;
ms.pos = 0;
status = gdip_read_bmp_image (&ms, &image, Memory);
if (status == Ok) {
status = GdipDrawImageRectRect (context->graphics, image, context->x + XDest, context->y + YDest,
context->width, context->height, XSrc, YSrc, nSrcWidth, nSrcHeight, UnitPixel, NULL, NULL, NULL);
}
if (image)
GdipDisposeImage (image);
return status;
}
/*
* Return the selected GDI+ Pen to draw on the metafile or NULL if none is selected/valid.
*/
GpPen*
gdip_metafile_GetSelectedPen (MetafilePlayContext *context)
{
GpPen *pen;
// EMF have some stock objects that do not requires explicit creation
if (context->selected_pen & ENHMETA_STOCK_OBJECT) {
switch (context->selected_pen - ENHMETA_STOCK_OBJECT) {
case WHITE_PEN:
if (!context->stock_pen_white) {
if (GdipCreatePen1 (0xFFFFFFFF, 0, UnitPixel, &context->stock_pen_white) != Ok)
return NULL;
}
pen = context->stock_pen_white;
break;
case BLACK_PEN:
if (!context->stock_pen_black) {
if (GdipCreatePen1 (0xFF000000, 0, UnitPixel, &context->stock_pen_black) != Ok)
return NULL;
}
pen = context->stock_pen_black;
break;
case NULL_PEN:
if (!context->stock_pen_null) {
if (GdipCreatePen1 (0x00000000, 0, UnitPixel, &context->stock_pen_null) != Ok)
return NULL;
}
pen = context->stock_pen_null;
break;
default:
return NULL;
}
} else {
if ((context->selected_pen < 0) || (context->selected_pen >= context->objects_count)) {
g_warning ("Invalid pen handle %d [0..%d[", context->selected_pen, context->objects_count);
return NULL;
}
if (context->objects [context->selected_pen].type != METAOBJECT_TYPE_PEN) {
g_warning ("Wrong object type %d, expected pen (%d)", context->objects [context->selected_pen].type,
METAOBJECT_TYPE_PEN);
return NULL;
}
#ifdef DEBUG_METAFILE
printf ("\tusing pen #%d (%p)", context->selected_pen, context->objects [context->selected_pen].ptr);
#endif
pen = (GpPen*) context->objects [context->selected_pen].ptr;
}
/* miter limit was global (i.e. context not pen specific) in GDI */
GdipSetPenMiterLimit (pen, context->miter_limit);
return pen;
}
/*
* Return the selected GDI+ Brush to fill on the metafile or NULL if none is selected/valid.
*/
GpBrush*
gdip_metafile_GetSelectedBrush (MetafilePlayContext *context)
{
// EMF have some stock objects that do not requires explicit creation
if (context->selected_brush & ENHMETA_STOCK_OBJECT) {
switch (context->selected_brush - ENHMETA_STOCK_OBJECT) {
case WHITE_BRUSH:
if (!context->stock_brush_white) {
if (GdipCreateSolidFill (0xFFFFFFFF, &context->stock_brush_white) != Ok)
return NULL;
}
return (GpBrush*)context->stock_brush_white;
case LTGRAY_BRUSH:
if (!context->stock_brush_ltgray) {
if (GdipCreateSolidFill (0xFFBBBBBB, &context->stock_brush_ltgray) != Ok)
return NULL;
}
return (GpBrush*)context->stock_brush_ltgray;
case GRAY_BRUSH:
if (!context->stock_brush_gray) {
if (GdipCreateSolidFill (0xFF888888, &context->stock_brush_gray) != Ok)
return NULL;
}
return (GpBrush*)context->stock_brush_gray;
case DKGRAY_BRUSH:
if (!context->stock_brush_dkgray) {
if (GdipCreateSolidFill (0xFF444444, &context->stock_brush_dkgray) != Ok)
return NULL;
}
return (GpBrush*)context->stock_brush_dkgray;
case BLACK_BRUSH:
if (!context->stock_brush_black) {
if (GdipCreateSolidFill (0xFF000000, &context->stock_brush_black) != Ok)
return NULL;
}
return (GpBrush*)context->stock_brush_black;
case NULL_BRUSH:
if (!context->stock_brush_null) {
if (GdipCreateSolidFill (0x00000000, &context->stock_brush_null) != Ok)
return NULL;
}
return (GpBrush*)context->stock_brush_null;
default:
return NULL;
}
}
if ((context->selected_brush < 0) || (context->selected_brush >= context->objects_count)) {
g_warning ("Invalid brush handle %d [0..%d[", context->selected_brush, context->objects_count);
return NULL;
}
if (context->objects [context->selected_brush].type != METAOBJECT_TYPE_BRUSH) {
g_warning ("Wrong object type %d, expected brush (%d)", context->objects [context->selected_brush].type,
METAOBJECT_TYPE_BRUSH);
return NULL;
}
#ifdef DEBUG_METAFILE
printf ("\tusing brush #%d (%p)", context->selected_brush, context->objects [context->selected_brush].ptr);
#endif
return (GpBrush*) context->objects [context->selected_brush].ptr;
}
GpStatus
gdip_metafile_PolyBezier (MetafilePlayContext *context, GpPointF *points, int count)
{
GpStatus status;
#ifdef DEBUG_METAFILE
printf ("PolyBezier %s count %d", context->use_path ? "Path " : " ", count);
#endif
if (context->use_path) {
status = GdipAddPathBeziers (context->path, points, count);
} else {
GpPen *pen = gdip_metafile_GetSelectedPen (context);
return GdipDrawCurve (context->graphics, pen, points, count);
}
return status;
}
GpStatus
gdip_metafile_Polygon (MetafilePlayContext *context, GpPointF *points, int count)
{
#ifdef DEBUG_METAFILE
printf ("Polygon %s count %d", context->use_path ? "Path " : " ", count);
#endif
GpBrush *brush = gdip_metafile_GetSelectedBrush (context);
GpStatus status = GdipFillPolygon (context->graphics, brush, points, count, context->fill_mode);
if (status == Ok) {
GpPen *pen = gdip_metafile_GetSelectedPen (context);
status = GdipDrawPolygon (context->graphics, pen, points, count);
}
return status;
}
GpStatus
gdip_metafile_BeginPath (MetafilePlayContext *context)
{
GpStatus status;
if (context->path) {
GdipDeletePath (context->path);
context->path = NULL;
}
context->use_path = TRUE;
status = GdipCreatePath (0, &context->path);
#ifdef DEBUG_METAFILE
printf ("BeginPath %p", context->path);
#endif
return status;
}
GpStatus
gdip_metafile_EndPath (MetafilePlayContext *context)
{
#ifdef DEBUG_METAFILE
printf ("EndPath %p", context->path);
#endif
context->use_path = FALSE;
return Ok;
}
GpStatus
gdip_metafile_CloseFigure (MetafilePlayContext *context)
{
#ifdef DEBUG_METAFILE
printf ("CloseFigure %p", context->path);
#endif
return GdipClosePathFigures (context->path);
}
GpStatus
gdip_metafile_FillPath (MetafilePlayContext *context)
{
#ifdef DEBUG_METAFILE
printf ("FillPath %p", context->path);
#endif
GpBrush* brush = gdip_metafile_GetSelectedBrush (context);
/* end path if required */
if (context->use_path)
gdip_metafile_EndPath (context);
return GdipFillPath (context->graphics, brush, context->path);
}
GpStatus
gdip_metafile_StrokePath (MetafilePlayContext *context)
{
#ifdef DEBUG_METAFILE
printf ("StrokePath %p", context->path);
#endif
GpPen *pen = gdip_metafile_GetSelectedPen (context);
/* end path if required */
if (context->use_path)
gdip_metafile_EndPath (context);
return GdipDrawPath (context->graphics, pen, context->path);
}
GpStatus
gdip_metafile_StrokeAndFillPath (MetafilePlayContext *context)
{
GpBrush *brush;
GpStatus status;
#ifdef DEBUG_METAFILE
printf ("StrokeAndFillPath %p", context->path);
#endif
/* end path if required */
if (context->use_path)
gdip_metafile_EndPath (context);
brush = gdip_metafile_GetSelectedBrush (context);
status = GdipFillPath (context->graphics, brush, context->path);
if (status == Ok) {
GpPen *pen = gdip_metafile_GetSelectedPen (context);
status = GdipDrawPath (context->graphics, pen, context->path);
}
return status;
}
static GpMetafile*
gdip_metafile_create ()
{
GpMetafile* mf = (GpMetafile*) GdipAlloc (sizeof (GpMetafile));
if (mf) {
mf->base.type = ImageTypeMetafile;
mf->delete = FALSE;
mf->data = NULL;
mf->length = 0;
mf->recording = FALSE;
mf->fp = NULL;
mf->stream = NULL;
}
return mf;
}
GpStatus
gdip_metafile_clone (GpMetafile *metafile, GpMetafile **clonedmetafile)
{
GpMetafile *mf = gdip_metafile_create ();
if (!mf)
return OutOfMemory;
memcpy (&mf->metafile_header, &metafile->metafile_header, sizeof (MetafileHeader));
if (metafile->length > 0) {
mf->data = GdipAlloc (metafile->length);
memcpy (mf->data, metafile->data, metafile->length);
mf->length = metafile->length;
}
*clonedmetafile = mf;
return Ok;
}
GpStatus
gdip_metafile_dispose (GpMetafile *metafile)
{
if (!metafile)
return InvalidParameter;
/* TODO deal with "delete" flag */
metafile->length = 0;
if (metafile->data) {
GdipFree (metafile->data);
metafile->data = NULL;
}
if (metafile->recording)
gdip_metafile_stop_recording (metafile);
GdipFree (metafile);
return Ok;
}
GpStatus
gdip_metafile_stop_recording (GpMetafile *metafile)
{
/* TODO save current stuff */
if (metafile->fp) {
fclose (metafile->fp);
metafile->fp = NULL;
}
if (metafile->stream) {
/* it's not ours to close, just forget about it */
metafile->stream = NULL;
}
/* we cannot open a new graphics instance on this metafile - recording is over */
metafile->recording = FALSE;
return Ok;
}
MetafilePlayContext*
gdip_metafile_play_setup (GpMetafile *metafile, GpGraphics *graphics, int x, int y, int width, int height)
{
int i, n;
MetaObject *obj;
MetafilePlayContext *context;
/* metafiles always render as 32bppRgb */
int stride = width * 4;
int size = height * stride;
if (!metafile || !graphics)
return NULL;
context = GdipAlloc (sizeof (MetafilePlayContext));
context->metafile = metafile;
context->graphics = graphics;
context->use_path = FALSE;
context->path = NULL;
/* keep a copy for clean up */
GdipGetWorldTransform (graphics, &context->initial);
#ifdef DEBUG_METAFILE
MetafileHeader *mh = &metafile->metafile_header;
GpMatrix *m = &context->initial;
g_warning ("\nMetafileHeader X %d, Y %d, W %d, H %d", mh->X, mh->Y, mh->Width, mh->Height);
g_warning ("\n\tinitial matrix %g %g %g %g %g %g", m->xx, m->yx, m->xy, m->yy, m->x0, m->y0);
#endif
context->x = x;
context->y = y;
context->width = width;
context->height = height;
/* and keep an adjusted copy for providing "resets" */
GdipTranslateWorldTransform (graphics, -metafile->metafile_header.X, -metafile->metafile_header.Y, MatrixOrderPrepend);
GdipGetWorldTransform (graphics, &context->matrix);
/* defaults */
context->fill_mode = FillModeAlternate;
context->map_mode = MM_TEXT;
context->miter_limit = 10.0f;
context->selected_pen = -1;
context->selected_brush = -1;
context->selected_font = -1;
context->selected_palette = -1;
/* Create* functions store the object here */
context->created.type = METAOBJECT_TYPE_EMPTY;
context->created.ptr = NULL;
/* stock objects */
context->stock_pen_white = NULL;
context->stock_pen_black = NULL;
context->stock_pen_null = NULL;
context->stock_brush_white = NULL;
context->stock_brush_ltgray = NULL;
context->stock_brush_gray = NULL;
context->stock_brush_dkgray = NULL;
context->stock_brush_black = NULL;
context->stock_brush_null = NULL;
/* SelectObject | DeleteObject works on this array */
switch (context->metafile->metafile_header.Type) {
case METAFILETYPE_WMFPLACEABLE:
case METAFILETYPE_WMF:
context->objects_count = metafile->metafile_header.WmfHeader.mtNoObjects;
break;
case METAFILETYPE_EMF:
case METAFILETYPE_EMFPLUSONLY:
case METAFILETYPE_EMFPLUSDUAL:
context->objects_count = metafile->metafile_header.EmfHeader.nHandles + 1; /* 0 is reserved */
break;
default:
GdipFree (context);
return NULL;
}
context->objects = (MetaObject*) GdipAlloc (context->objects_count * sizeof (MetaObject));
if (!context->objects) {
GdipFree (context);