2 * Copyright (C) 2007 Google (Evan Stade)
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
27 #include "wine/unicode.h"
39 #include "gdiplus_private.h"
40 #include "wine/debug.h"
42 WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
44 /* looks-right constants */
45 #define TENSION_CONST (0.3)
46 #define ANCHOR_WIDTH (2.0)
47 #define MAX_ITERS (50)
49 /* Converts angle (in degrees) to x/y coordinates */
50 static void deg2xy(REAL angle, REAL x_0, REAL y_0, REAL *x, REAL *y)
52 REAL radAngle, hypotenuse;
54 radAngle = deg2rad(angle);
55 hypotenuse = 50.0; /* arbitrary */
57 *x = x_0 + cos(radAngle) * hypotenuse;
58 *y = y_0 + sin(radAngle) * hypotenuse;
61 /* Converts from gdiplus path point type to gdi path point type. */
62 static BYTE convert_path_point_type(BYTE type)
66 switch(type & PathPointTypePathTypeMask){
67 case PathPointTypeBezier:
70 case PathPointTypeLine:
73 case PathPointTypeStart:
77 ERR("Bad point type\n");
81 if(type & PathPointTypeCloseSubpath)
82 ret |= PT_CLOSEFIGURE;
87 static INT prepare_dc(GpGraphics *graphics, GpPen *pen)
91 INT save_state = SaveDC(graphics->hdc), i, numdashes;
93 DWORD dash_array[MAX_DASHLEN];
95 EndPath(graphics->hdc);
97 if(pen->unit == UnitPixel){
101 /* Get an estimate for the amount the pen width is affected by the world
102 * transform. (This is similar to what some of the wine drivers do.) */
107 GdipTransformMatrixPoints(graphics->worldtrans, pt, 2);
108 width = sqrt((pt[1].X - pt[0].X) * (pt[1].X - pt[0].X) +
109 (pt[1].Y - pt[0].Y) * (pt[1].Y - pt[0].Y)) / sqrt(2.0);
111 width *= pen->width * convert_unit(graphics->hdc,
112 pen->unit == UnitWorld ? graphics->unit : pen->unit);
115 if(pen->dash == DashStyleCustom){
116 numdashes = min(pen->numdashes, MAX_DASHLEN);
118 TRACE("dashes are: ");
119 for(i = 0; i < numdashes; i++){
120 dash_array[i] = roundr(width * pen->dashes[i]);
121 TRACE("%d, ", dash_array[i]);
123 TRACE("\n and the pen style is %x\n", pen->style);
125 gdipen = ExtCreatePen(pen->style, roundr(width), &pen->brush->lb,
126 numdashes, dash_array);
129 gdipen = ExtCreatePen(pen->style, roundr(width), &pen->brush->lb, 0, NULL);
131 SelectObject(graphics->hdc, gdipen);
136 static void restore_dc(GpGraphics *graphics, INT state)
138 DeleteObject(SelectObject(graphics->hdc, GetStockObject(NULL_PEN)));
139 RestoreDC(graphics->hdc, state);
142 /* This helper applies all the changes that the points listed in ptf need in
143 * order to be drawn on the device context. In the end, this should include at
145 * -scaling by page unit
146 * -applying world transformation
147 * -converting from float to int
148 * Native gdiplus uses gdi32 to do all this (via SetMapMode, SetViewportExtEx,
149 * SetWindowExtEx, SetWorldTransform, etc.) but we cannot because we are using
150 * gdi to draw, and these functions would irreparably mess with line widths.
152 static void transform_and_round_points(GpGraphics *graphics, POINT *pti,
153 GpPointF *ptf, INT count)
159 unitscale = convert_unit(graphics->hdc, graphics->unit);
161 /* apply page scale */
162 if(graphics->unit != UnitDisplay)
163 unitscale *= graphics->scale;
165 GdipCloneMatrix(graphics->worldtrans, &matrix);
166 GdipScaleMatrix(matrix, unitscale, unitscale, MatrixOrderAppend);
167 GdipTransformMatrixPoints(matrix, ptf, count);
168 GdipDeleteMatrix(matrix);
170 for(i = 0; i < count; i++){
171 pti[i].x = roundr(ptf[i].X);
172 pti[i].y = roundr(ptf[i].Y);
176 /* GdipDrawPie/GdipFillPie helper function */
177 static void draw_pie(GpGraphics *graphics, REAL x, REAL y, REAL width,
178 REAL height, REAL startAngle, REAL sweepAngle)
185 ptf[1].X = x + width;
186 ptf[1].Y = y + height;
188 deg2xy(startAngle+sweepAngle, x + width / 2.0, y + width / 2.0, &ptf[2].X, &ptf[2].Y);
189 deg2xy(startAngle, x + width / 2.0, y + width / 2.0, &ptf[3].X, &ptf[3].Y);
191 transform_and_round_points(graphics, pti, ptf, 4);
193 Pie(graphics->hdc, pti[0].x, pti[0].y, pti[1].x, pti[1].y, pti[2].x,
194 pti[2].y, pti[3].x, pti[3].y);
197 /* GdipDrawCurve helper function.
198 * Calculates Bezier points from cardinal spline points. */
199 static void calc_curve_bezier(CONST GpPointF *pts, REAL tension, REAL *x1,
200 REAL *y1, REAL *x2, REAL *y2)
204 /* calculate tangent */
205 xdiff = pts[2].X - pts[0].X;
206 ydiff = pts[2].Y - pts[0].Y;
208 /* apply tangent to get control points */
209 *x1 = pts[1].X - tension * xdiff;
210 *y1 = pts[1].Y - tension * ydiff;
211 *x2 = pts[1].X + tension * xdiff;
212 *y2 = pts[1].Y + tension * ydiff;
215 /* GdipDrawCurve helper function.
216 * Calculates Bezier points from cardinal spline endpoints. */
217 static void calc_curve_bezier_endp(REAL xend, REAL yend, REAL xadj, REAL yadj,
218 REAL tension, REAL *x, REAL *y)
220 /* tangent at endpoints is the line from the endpoint to the adjacent point */
221 *x = roundr(tension * (xadj - xend) + xend);
222 *y = roundr(tension * (yadj - yend) + yend);
225 /* Draws the linecap the specified color and size on the hdc. The linecap is in
226 * direction of the line from x1, y1 to x2, y2 and is anchored on x2, y2. Probably
227 * should not be called on an hdc that has a path you care about. */
228 static void draw_cap(GpGraphics *graphics, COLORREF color, GpLineCap cap, REAL size,
229 const GpCustomLineCap *custom, REAL x1, REAL y1, REAL x2, REAL y2)
231 HGDIOBJ oldbrush = NULL, oldpen = NULL;
232 GpMatrix *matrix = NULL;
235 PointF ptf[4], *custptf = NULL;
236 POINT pt[4], *custpt = NULL;
238 REAL theta, dsmall, dbig, dx, dy = 0.0;
243 if((x1 == x2) && (y1 == y2))
246 theta = gdiplus_atan2(y2 - y1, x2 - x1);
248 customstroke = (cap == LineCapCustom) && custom && (!custom->fill);
250 brush = CreateSolidBrush(color);
251 lb.lbStyle = BS_SOLID;
254 pen = ExtCreatePen(PS_GEOMETRIC | PS_SOLID | PS_ENDCAP_FLAT |
255 PS_JOIN_MITER, 1, &lb, 0,
257 oldbrush = SelectObject(graphics->hdc, brush);
258 oldpen = SelectObject(graphics->hdc, pen);
265 case LineCapSquareAnchor:
266 case LineCapDiamondAnchor:
267 size = size * (cap & LineCapNoAnchor ? ANCHOR_WIDTH : 1.0) / 2.0;
268 if(cap == LineCapDiamondAnchor){
269 dsmall = cos(theta + M_PI_2) * size;
270 dbig = sin(theta + M_PI_2) * size;
273 dsmall = cos(theta + M_PI_4) * size;
274 dbig = sin(theta + M_PI_4) * size;
277 ptf[0].X = x2 - dsmall;
278 ptf[1].X = x2 + dbig;
280 ptf[0].Y = y2 - dbig;
281 ptf[3].Y = y2 + dsmall;
283 ptf[1].Y = y2 - dsmall;
284 ptf[2].Y = y2 + dbig;
286 ptf[3].X = x2 - dbig;
287 ptf[2].X = x2 + dsmall;
289 transform_and_round_points(graphics, pt, ptf, 4);
290 Polygon(graphics->hdc, pt, 4);
293 case LineCapArrowAnchor:
294 size = size * 4.0 / sqrt(3.0);
296 dx = cos(M_PI / 6.0 + theta) * size;
297 dy = sin(M_PI / 6.0 + theta) * size;
302 dx = cos(- M_PI / 6.0 + theta) * size;
303 dy = sin(- M_PI / 6.0 + theta) * size;
311 transform_and_round_points(graphics, pt, ptf, 3);
312 Polygon(graphics->hdc, pt, 3);
315 case LineCapRoundAnchor:
316 dx = dy = ANCHOR_WIDTH * size / 2.0;
323 transform_and_round_points(graphics, pt, ptf, 2);
324 Ellipse(graphics->hdc, pt[0].x, pt[0].y, pt[1].x, pt[1].y);
327 case LineCapTriangle:
329 dx = cos(M_PI_2 + theta) * size;
330 dy = sin(M_PI_2 + theta) * size;
337 dx = cos(theta) * size;
338 dy = sin(theta) * size;
343 transform_and_round_points(graphics, pt, ptf, 3);
344 Polygon(graphics->hdc, pt, 3);
348 dx = dy = size / 2.0;
355 dx = -cos(M_PI_2 + theta) * size;
356 dy = -sin(M_PI_2 + theta) * size;
363 transform_and_round_points(graphics, pt, ptf, 4);
364 Pie(graphics->hdc, pt[0].x, pt[0].y, pt[1].x, pt[1].y, pt[2].x,
365 pt[2].y, pt[3].x, pt[3].y);
372 count = custom->pathdata.Count;
373 custptf = GdipAlloc(count * sizeof(PointF));
374 custpt = GdipAlloc(count * sizeof(POINT));
375 tp = GdipAlloc(count);
377 if(!custptf || !custpt || !tp || (GdipCreateMatrix(&matrix) != Ok))
380 memcpy(custptf, custom->pathdata.Points, count * sizeof(PointF));
382 GdipScaleMatrix(matrix, size, size, MatrixOrderAppend);
383 GdipRotateMatrix(matrix, (180.0 / M_PI) * (theta - M_PI_2),
385 GdipTranslateMatrix(matrix, x2, y2, MatrixOrderAppend);
386 GdipTransformMatrixPoints(matrix, custptf, count);
388 transform_and_round_points(graphics, custpt, custptf, count);
390 for(i = 0; i < count; i++)
391 tp[i] = convert_path_point_type(custom->pathdata.Types[i]);
394 BeginPath(graphics->hdc);
395 PolyDraw(graphics->hdc, custpt, tp, count);
396 EndPath(graphics->hdc);
397 StrokeAndFillPath(graphics->hdc);
400 PolyDraw(graphics->hdc, custpt, tp, count);
406 GdipDeleteMatrix(matrix);
413 SelectObject(graphics->hdc, oldbrush);
414 SelectObject(graphics->hdc, oldpen);
420 /* Shortens the line by the given percent by changing x2, y2.
421 * If percent is > 1.0 then the line will change direction.
422 * If percent is negative it can lengthen the line. */
423 static void shorten_line_percent(REAL x1, REAL y1, REAL *x2, REAL *y2, REAL percent)
425 REAL dist, theta, dx, dy;
427 if((y1 == *y2) && (x1 == *x2))
430 dist = sqrt((*x2 - x1) * (*x2 - x1) + (*y2 - y1) * (*y2 - y1)) * -percent;
431 theta = gdiplus_atan2((*y2 - y1), (*x2 - x1));
432 dx = cos(theta) * dist;
433 dy = sin(theta) * dist;
439 /* Shortens the line by the given amount by changing x2, y2.
440 * If the amount is greater than the distance, the line will become length 0.
441 * If the amount is negative, it can lengthen the line. */
442 static void shorten_line_amt(REAL x1, REAL y1, REAL *x2, REAL *y2, REAL amt)
444 REAL dx, dy, percent;
448 if(dx == 0 && dy == 0)
451 percent = amt / sqrt(dx * dx + dy * dy);
458 shorten_line_percent(x1, y1, x2, y2, percent);
461 /* Draws lines between the given points, and if caps is true then draws an endcap
462 * at the end of the last line. */
463 static GpStatus draw_polyline(GpGraphics *graphics, GpPen *pen,
464 GDIPCONST GpPointF * pt, INT count, BOOL caps)
467 GpPointF *ptcopy = NULL;
468 GpStatus status = GenericError;
473 pti = GdipAlloc(count * sizeof(POINT));
474 ptcopy = GdipAlloc(count * sizeof(GpPointF));
477 status = OutOfMemory;
481 memcpy(ptcopy, pt, count * sizeof(GpPointF));
484 if(pen->endcap == LineCapArrowAnchor)
485 shorten_line_amt(ptcopy[count-2].X, ptcopy[count-2].Y,
486 &ptcopy[count-1].X, &ptcopy[count-1].Y, pen->width);
487 else if((pen->endcap == LineCapCustom) && pen->customend)
488 shorten_line_amt(ptcopy[count-2].X, ptcopy[count-2].Y,
489 &ptcopy[count-1].X, &ptcopy[count-1].Y,
490 pen->customend->inset * pen->width);
492 if(pen->startcap == LineCapArrowAnchor)
493 shorten_line_amt(ptcopy[1].X, ptcopy[1].Y,
494 &ptcopy[0].X, &ptcopy[0].Y, pen->width);
495 else if((pen->startcap == LineCapCustom) && pen->customstart)
496 shorten_line_amt(ptcopy[1].X, ptcopy[1].Y,
497 &ptcopy[0].X, &ptcopy[0].Y,
498 pen->customstart->inset * pen->width);
500 draw_cap(graphics, pen->brush->lb.lbColor, pen->endcap, pen->width, pen->customend,
501 pt[count - 2].X, pt[count - 2].Y, pt[count - 1].X, pt[count - 1].Y);
502 draw_cap(graphics, pen->brush->lb.lbColor, pen->startcap, pen->width, pen->customstart,
503 pt[1].X, pt[1].Y, pt[0].X, pt[0].Y);\
506 transform_and_round_points(graphics, pti, ptcopy, count);
508 Polyline(graphics->hdc, pti, count);
517 /* Conducts a linear search to find the bezier points that will back off
518 * the endpoint of the curve by a distance of amt. Linear search works
519 * better than binary in this case because there are multiple solutions,
520 * and binary searches often find a bad one. I don't think this is what
521 * Windows does but short of rendering the bezier without GDI's help it's
522 * the best we can do. If rev then work from the start of the passed points
523 * instead of the end. */
524 static void shorten_bezier_amt(GpPointF * pt, REAL amt, BOOL rev)
527 REAL percent = 0.00, dx, dy, origx, origy, diff = -1.0;
528 INT i, first = 0, second = 1, third = 2, fourth = 3;
537 origx = pt[fourth].X;
538 origy = pt[fourth].Y;
539 memcpy(origpt, pt, sizeof(GpPointF) * 4);
541 for(i = 0; (i < MAX_ITERS) && (diff < amt); i++){
542 /* reset bezier points to original values */
543 memcpy(pt, origpt, sizeof(GpPointF) * 4);
544 /* Perform magic on bezier points. Order is important here.*/
545 shorten_line_percent(pt[third].X, pt[third].Y, &pt[fourth].X, &pt[fourth].Y, percent);
546 shorten_line_percent(pt[second].X, pt[second].Y, &pt[third].X, &pt[third].Y, percent);
547 shorten_line_percent(pt[third].X, pt[third].Y, &pt[fourth].X, &pt[fourth].Y, percent);
548 shorten_line_percent(pt[first].X, pt[first].Y, &pt[second].X, &pt[second].Y, percent);
549 shorten_line_percent(pt[second].X, pt[second].Y, &pt[third].X, &pt[third].Y, percent);
550 shorten_line_percent(pt[third].X, pt[third].Y, &pt[fourth].X, &pt[fourth].Y, percent);
552 dx = pt[fourth].X - origx;
553 dy = pt[fourth].Y - origy;
555 diff = sqrt(dx * dx + dy * dy);
556 percent += 0.0005 * amt;
560 /* Draws bezier curves between given points, and if caps is true then draws an
561 * endcap at the end of the last line. */
562 static GpStatus draw_polybezier(GpGraphics *graphics, GpPen *pen,
563 GDIPCONST GpPointF * pt, INT count, BOOL caps)
567 GpStatus status = GenericError;
572 pti = GdipAlloc(count * sizeof(POINT));
573 ptcopy = GdipAlloc(count * sizeof(GpPointF));
576 status = OutOfMemory;
580 memcpy(ptcopy, pt, count * sizeof(GpPointF));
583 if(pen->endcap == LineCapArrowAnchor)
584 shorten_bezier_amt(&ptcopy[count-4], pen->width, FALSE);
585 else if((pen->endcap == LineCapCustom) && pen->customend)
586 shorten_bezier_amt(&ptcopy[count-4], pen->width * pen->customend->inset,
589 if(pen->startcap == LineCapArrowAnchor)
590 shorten_bezier_amt(ptcopy, pen->width, TRUE);
591 else if((pen->startcap == LineCapCustom) && pen->customstart)
592 shorten_bezier_amt(ptcopy, pen->width * pen->customstart->inset, TRUE);
594 /* the direction of the line cap is parallel to the direction at the
595 * end of the bezier (which, if it has been shortened, is not the same
596 * as the direction from pt[count-2] to pt[count-1]) */
597 draw_cap(graphics, pen->brush->lb.lbColor, pen->endcap, pen->width, pen->customend,
598 pt[count - 1].X - (ptcopy[count - 1].X - ptcopy[count - 2].X),
599 pt[count - 1].Y - (ptcopy[count - 1].Y - ptcopy[count - 2].Y),
600 pt[count - 1].X, pt[count - 1].Y);
602 draw_cap(graphics, pen->brush->lb.lbColor, pen->startcap, pen->width, pen->customstart,
603 pt[0].X - (ptcopy[0].X - ptcopy[1].X),
604 pt[0].Y - (ptcopy[0].Y - ptcopy[1].Y), pt[0].X, pt[0].Y);
607 transform_and_round_points(graphics, pti, ptcopy, count);
609 PolyBezier(graphics->hdc, pti, count);
620 /* Draws a combination of bezier curves and lines between points. */
621 static GpStatus draw_poly(GpGraphics *graphics, GpPen *pen, GDIPCONST GpPointF * pt,
622 GDIPCONST BYTE * types, INT count, BOOL caps)
624 POINT *pti = GdipAlloc(count * sizeof(POINT));
625 BYTE *tp = GdipAlloc(count);
626 GpPointF *ptcopy = GdipAlloc(count * sizeof(GpPointF));
628 GpStatus status = GenericError;
634 if(!pti || !tp || !ptcopy){
635 status = OutOfMemory;
639 for(i = 1; i < count; i++){
640 if((types[i] & PathPointTypePathTypeMask) == PathPointTypeBezier){
641 if((i + 2 >= count) || !(types[i + 1] & PathPointTypeBezier)
642 || !(types[i + 1] & PathPointTypeBezier)){
643 ERR("Bad bezier points\n");
650 memcpy(ptcopy, pt, count * sizeof(GpPointF));
652 /* If we are drawing caps, go through the points and adjust them accordingly,
653 * and draw the caps. */
655 switch(types[count - 1] & PathPointTypePathTypeMask){
656 case PathPointTypeBezier:
657 if(pen->endcap == LineCapArrowAnchor)
658 shorten_bezier_amt(&ptcopy[count - 4], pen->width, FALSE);
659 else if((pen->endcap == LineCapCustom) && pen->customend)
660 shorten_bezier_amt(&ptcopy[count - 4],
661 pen->width * pen->customend->inset, FALSE);
663 draw_cap(graphics, pen->brush->lb.lbColor, pen->endcap, pen->width, pen->customend,
664 pt[count - 1].X - (ptcopy[count - 1].X - ptcopy[count - 2].X),
665 pt[count - 1].Y - (ptcopy[count - 1].Y - ptcopy[count - 2].Y),
666 pt[count - 1].X, pt[count - 1].Y);
669 case PathPointTypeLine:
670 if(pen->endcap == LineCapArrowAnchor)
671 shorten_line_amt(ptcopy[count - 2].X, ptcopy[count - 2].Y,
672 &ptcopy[count - 1].X, &ptcopy[count - 1].Y,
674 else if((pen->endcap == LineCapCustom) && pen->customend)
675 shorten_line_amt(ptcopy[count - 2].X, ptcopy[count - 2].Y,
676 &ptcopy[count - 1].X, &ptcopy[count - 1].Y,
677 pen->customend->inset * pen->width);
679 draw_cap(graphics, pen->brush->lb.lbColor, pen->endcap, pen->width, pen->customend,
680 pt[count - 2].X, pt[count - 2].Y, pt[count - 1].X,
685 ERR("Bad path last point\n");
689 /* Find start of points */
690 for(j = 1; j < count && ((types[j] & PathPointTypePathTypeMask)
691 == PathPointTypeStart); j++);
693 switch(types[j] & PathPointTypePathTypeMask){
694 case PathPointTypeBezier:
695 if(pen->startcap == LineCapArrowAnchor)
696 shorten_bezier_amt(&ptcopy[j - 1], pen->width, TRUE);
697 else if((pen->startcap == LineCapCustom) && pen->customstart)
698 shorten_bezier_amt(&ptcopy[j - 1],
699 pen->width * pen->customstart->inset, TRUE);
701 draw_cap(graphics, pen->brush->lb.lbColor, pen->startcap, pen->width, pen->customstart,
702 pt[j - 1].X - (ptcopy[j - 1].X - ptcopy[j].X),
703 pt[j - 1].Y - (ptcopy[j - 1].Y - ptcopy[j].Y),
704 pt[j - 1].X, pt[j - 1].Y);
707 case PathPointTypeLine:
708 if(pen->startcap == LineCapArrowAnchor)
709 shorten_line_amt(ptcopy[j].X, ptcopy[j].Y,
710 &ptcopy[j - 1].X, &ptcopy[j - 1].Y,
712 else if((pen->startcap == LineCapCustom) && pen->customstart)
713 shorten_line_amt(ptcopy[j].X, ptcopy[j].Y,
714 &ptcopy[j - 1].X, &ptcopy[j - 1].Y,
715 pen->customstart->inset * pen->width);
717 draw_cap(graphics, pen->brush->lb.lbColor, pen->startcap, pen->width, pen->customstart,
718 pt[j].X, pt[j].Y, pt[j - 1].X,
723 ERR("Bad path points\n");
728 transform_and_round_points(graphics, pti, ptcopy, count);
730 for(i = 0; i < count; i++){
731 tp[i] = convert_path_point_type(types[i]);
734 PolyDraw(graphics->hdc, pti, tp, count);
746 GpStatus WINGDIPAPI GdipCreateFromHDC(HDC hdc, GpGraphics **graphics)
754 return InvalidParameter;
756 *graphics = GdipAlloc(sizeof(GpGraphics));
757 if(!*graphics) return OutOfMemory;
759 if((retval = GdipCreateMatrix(&(*graphics)->worldtrans)) != Ok){
764 (*graphics)->hdc = hdc;
765 (*graphics)->hwnd = NULL;
766 (*graphics)->smoothing = SmoothingModeDefault;
767 (*graphics)->compqual = CompositingQualityDefault;
768 (*graphics)->interpolation = InterpolationModeDefault;
769 (*graphics)->pixeloffset = PixelOffsetModeDefault;
770 (*graphics)->compmode = CompositingModeSourceOver;
771 (*graphics)->unit = UnitDisplay;
772 (*graphics)->scale = 1.0;
777 GpStatus WINGDIPAPI GdipCreateFromHWND(HWND hwnd, GpGraphics **graphics)
781 if((ret = GdipCreateFromHDC(GetDC(hwnd), graphics)) != Ok)
784 (*graphics)->hwnd = hwnd;
789 GpStatus WINGDIPAPI GdipCreateMetafileFromEmf(HENHMETAFILE hemf, BOOL delete,
790 GpMetafile **metafile)
794 if(!hemf || !metafile)
795 return InvalidParameter;
798 FIXME("not implemented\n");
800 return NotImplemented;
803 GpStatus WINGDIPAPI GdipCreateMetafileFromWmf(HMETAFILE hwmf, BOOL delete,
804 GDIPCONST WmfPlaceableFileHeader * placeable, GpMetafile **metafile)
806 IStream *stream = NULL;
810 GpStatus retval = GenericError;
812 if(!hwmf || !metafile || !placeable)
813 return InvalidParameter;
816 read = GetMetaFileBitsEx(hwmf, 0, NULL);
819 copy = GdipAlloc(read);
820 GetMetaFileBitsEx(hwmf, read, copy);
822 hemf = SetWinMetaFileBits(read, copy, NULL, NULL);
825 read = GetEnhMetaFileBits(hemf, 0, NULL);
826 copy = GdipAlloc(read);
827 GetEnhMetaFileBits(hemf, read, copy);
828 DeleteEnhMetaFile(hemf);
830 if(CreateStreamOnHGlobal(copy, TRUE, &stream) != S_OK){
831 ERR("could not make stream\n");
836 *metafile = GdipAlloc(sizeof(GpMetafile));
838 retval = OutOfMemory;
842 if(OleLoadPicture(stream, 0, FALSE, &IID_IPicture,
843 (LPVOID*) &((*metafile)->image.picture)) != S_OK)
847 (*metafile)->image.type = ImageTypeMetafile;
848 (*metafile)->bounds.X = ((REAL) placeable->BoundingBox.Left) / ((REAL) placeable->Inch);
849 (*metafile)->bounds.Y = ((REAL) placeable->BoundingBox.Right) / ((REAL) placeable->Inch);
850 (*metafile)->bounds.Width = ((REAL) (placeable->BoundingBox.Right
851 - placeable->BoundingBox.Left)) / ((REAL) placeable->Inch);
852 (*metafile)->bounds.Height = ((REAL) (placeable->BoundingBox.Bottom
853 - placeable->BoundingBox.Top)) / ((REAL) placeable->Inch);
854 (*metafile)->unit = UnitInch;
857 DeleteMetaFile(hwmf);
863 IStream_Release(stream);
867 GpStatus WINGDIPAPI GdipCreateStreamOnFile(GDIPCONST WCHAR * filename,
868 UINT access, IStream **stream)
873 if(!stream || !filename)
874 return InvalidParameter;
876 if(access & GENERIC_WRITE)
877 dwMode = STGM_SHARE_DENY_WRITE | STGM_WRITE | STGM_CREATE;
878 else if(access & GENERIC_READ)
879 dwMode = STGM_SHARE_DENY_WRITE | STGM_READ | STGM_FAILIFTHERE;
881 return InvalidParameter;
883 ret = SHCreateStreamOnFileW(filename, dwMode, stream);
885 return hresult_to_status(ret);
888 GpStatus WINGDIPAPI GdipDeleteGraphics(GpGraphics *graphics)
890 if(!graphics) return InvalidParameter;
892 ReleaseDC(graphics->hwnd, graphics->hdc);
894 GdipDeleteMatrix(graphics->worldtrans);
895 HeapFree(GetProcessHeap(), 0, graphics);
900 GpStatus WINGDIPAPI GdipDrawArc(GpGraphics *graphics, GpPen *pen, REAL x,
901 REAL y, REAL width, REAL height, REAL startAngle, REAL sweepAngle)
903 INT save_state, num_pts;
904 GpPointF points[MAX_ARC_PTS];
907 if(!graphics || !pen)
908 return InvalidParameter;
910 num_pts = arc2polybezier(points, x, y, width, height, startAngle, sweepAngle);
912 save_state = prepare_dc(graphics, pen);
914 retval = draw_polybezier(graphics, pen, points, num_pts, TRUE);
916 restore_dc(graphics, save_state);
921 GpStatus WINGDIPAPI GdipDrawBezier(GpGraphics *graphics, GpPen *pen, REAL x1,
922 REAL y1, REAL x2, REAL y2, REAL x3, REAL y3, REAL x4, REAL y4)
928 if(!graphics || !pen)
929 return InvalidParameter;
940 save_state = prepare_dc(graphics, pen);
942 retval = draw_polybezier(graphics, pen, pt, 4, TRUE);
944 restore_dc(graphics, save_state);
949 /* Approximates cardinal spline with Bezier curves. */
950 GpStatus WINGDIPAPI GdipDrawCurve2(GpGraphics *graphics, GpPen *pen,
951 GDIPCONST GpPointF *points, INT count, REAL tension)
953 /* PolyBezier expects count*3-2 points. */
954 INT i, len_pt = count*3-2, save_state;
959 if(!graphics || !pen)
960 return InvalidParameter;
962 pt = GdipAlloc(len_pt * sizeof(GpPointF));
963 tension = tension * TENSION_CONST;
965 calc_curve_bezier_endp(points[0].X, points[0].Y, points[1].X, points[1].Y,
968 pt[0].X = points[0].X;
969 pt[0].Y = points[0].Y;
973 for(i = 0; i < count-2; i++){
974 calc_curve_bezier(&(points[i]), tension, &x1, &y1, &x2, &y2);
978 pt[3*i+3].X = points[i+1].X;
979 pt[3*i+3].Y = points[i+1].Y;
984 calc_curve_bezier_endp(points[count-1].X, points[count-1].Y,
985 points[count-2].X, points[count-2].Y, tension, &x1, &y1);
989 pt[len_pt-1].X = points[count-1].X;
990 pt[len_pt-1].Y = points[count-1].Y;
992 save_state = prepare_dc(graphics, pen);
994 retval = draw_polybezier(graphics, pen, pt, len_pt, TRUE);
997 restore_dc(graphics, save_state);
1002 GpStatus WINGDIPAPI GdipDrawImageI(GpGraphics *graphics, GpImage *image, INT x,
1005 UINT width, height, srcw, srch;
1007 if(!graphics || !image)
1008 return InvalidParameter;
1010 GdipGetImageWidth(image, &width);
1011 GdipGetImageHeight(image, &height);
1013 srcw = width * (((REAL) INCH_HIMETRIC) /
1014 ((REAL) GetDeviceCaps(graphics->hdc, LOGPIXELSX)));
1015 srch = height * (((REAL) INCH_HIMETRIC) /
1016 ((REAL) GetDeviceCaps(graphics->hdc, LOGPIXELSY)));
1018 if(image->type != ImageTypeMetafile){
1023 IPicture_Render(image->picture, graphics->hdc, x, y, width, height,
1024 0, 0, srcw, srch, NULL);
1029 /* FIXME: partially implemented (only works for rectangular parallelograms) */
1030 GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image,
1031 GDIPCONST GpPointF *points, INT count, REAL srcx, REAL srcy, REAL srcwidth,
1032 REAL srcheight, GpUnit srcUnit, GDIPCONST GpImageAttributes* imageAttributes,
1033 DrawImageAbort callback, VOID * callbackData)
1039 TRACE("%p %p %p %d %f %f %f %f %d %p %p %p\n", graphics, image, points, count,
1040 srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback,
1043 if(!graphics || !image || !points || !imageAttributes || count != 3)
1044 return InvalidParameter;
1046 if(srcUnit == UnitInch)
1047 dx = dy = (REAL) INCH_HIMETRIC;
1048 else if(srcUnit == UnitPixel){
1049 dx = ((REAL) INCH_HIMETRIC) /
1050 ((REAL) GetDeviceCaps(graphics->hdc, LOGPIXELSX));
1051 dy = ((REAL) INCH_HIMETRIC) /
1052 ((REAL) GetDeviceCaps(graphics->hdc, LOGPIXELSY));
1055 return NotImplemented;
1057 memcpy(ptf, points, 3 * sizeof(GpPointF));
1058 transform_and_round_points(graphics, pti, ptf, 3);
1060 /* IPicture renders bitmaps with the y-axis reversed
1061 * FIXME: flipping for unknown image type might not be correct. */
1062 if(image->type != ImageTypeMetafile){
1065 pti[0].y = pti[2].y;
1069 if(IPicture_Render(image->picture, graphics->hdc,
1070 pti[0].x, pti[0].y, pti[1].x - pti[0].x, pti[2].y - pti[0].y,
1071 srcx * dx, srcy * dy,
1072 srcwidth * dx, srcheight * dy,
1075 callback(callbackData);
1076 return GenericError;
1082 GpStatus WINGDIPAPI GdipDrawImageRectRect(GpGraphics *graphics, GpImage *image,
1083 REAL dstx, REAL dsty, REAL dstwidth, REAL dstheight, REAL srcx, REAL srcy,
1084 REAL srcwidth, REAL srcheight, GpUnit srcUnit,
1085 GDIPCONST GpImageAttributes* imageattr, DrawImageAbort callback,
1086 VOID * callbackData)
1092 points[1].X = dstx + dstwidth;
1095 points[2].Y = dsty + dstheight;
1097 return GdipDrawImagePointsRect(graphics, image, points, 3, srcx, srcy,
1098 srcwidth, srcheight, srcUnit, imageattr, callback, callbackData);
1101 GpStatus WINGDIPAPI GdipDrawLine(GpGraphics *graphics, GpPen *pen, REAL x1,
1102 REAL y1, REAL x2, REAL y2)
1108 if(!pen || !graphics)
1109 return InvalidParameter;
1116 save_state = prepare_dc(graphics, pen);
1118 retval = draw_polyline(graphics, pen, pt, 2, TRUE);
1120 restore_dc(graphics, save_state);
1125 GpStatus WINGDIPAPI GdipDrawLineI(GpGraphics *graphics, GpPen *pen, INT x1,
1126 INT y1, INT x2, INT y2)
1132 if(!pen || !graphics)
1133 return InvalidParameter;
1140 save_state = prepare_dc(graphics, pen);
1142 retval = draw_polyline(graphics, pen, pt, 2, TRUE);
1144 restore_dc(graphics, save_state);
1149 GpStatus WINGDIPAPI GdipDrawLines(GpGraphics *graphics, GpPen *pen, GDIPCONST
1150 GpPointF *points, INT count)
1155 if(!pen || !graphics || (count < 2))
1156 return InvalidParameter;
1158 save_state = prepare_dc(graphics, pen);
1160 retval = draw_polyline(graphics, pen, points, count, TRUE);
1162 restore_dc(graphics, save_state);
1167 GpStatus WINGDIPAPI GdipDrawPath(GpGraphics *graphics, GpPen *pen, GpPath *path)
1172 if(!pen || !graphics)
1173 return InvalidParameter;
1175 save_state = prepare_dc(graphics, pen);
1177 retval = draw_poly(graphics, pen, path->pathdata.Points,
1178 path->pathdata.Types, path->pathdata.Count, TRUE);
1180 restore_dc(graphics, save_state);
1185 GpStatus WINGDIPAPI GdipDrawPie(GpGraphics *graphics, GpPen *pen, REAL x,
1186 REAL y, REAL width, REAL height, REAL startAngle, REAL sweepAngle)
1190 if(!graphics || !pen)
1191 return InvalidParameter;
1193 save_state = prepare_dc(graphics, pen);
1194 SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
1196 draw_pie(graphics, x, y, width, height, startAngle, sweepAngle);
1198 restore_dc(graphics, save_state);
1203 GpStatus WINGDIPAPI GdipDrawRectangleI(GpGraphics *graphics, GpPen *pen, INT x,
1204 INT y, INT width, INT height)
1210 if(!pen || !graphics)
1211 return InvalidParameter;
1215 ptf[1].X = x + width;
1217 ptf[2].X = x + width;
1218 ptf[2].Y = y + height;
1220 ptf[3].Y = y + height;
1222 save_state = prepare_dc(graphics, pen);
1223 SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
1225 transform_and_round_points(graphics, pti, ptf, 4);
1226 Polygon(graphics->hdc, pti, 4);
1228 restore_dc(graphics, save_state);
1233 GpStatus WINGDIPAPI GdipDrawRectangles(GpGraphics *graphics, GpPen *pen,
1234 GpRectF* rects, INT count)
1240 if(!graphics || !pen || !rects || count < 1)
1241 return InvalidParameter;
1243 ptf = GdipAlloc(4 * count * sizeof(GpPointF));
1244 pti = GdipAlloc(4 * count * sizeof(POINT));
1252 for(i = 0; i < count; i++){
1253 ptf[4 * i + 3].X = ptf[4 * i].X = rects[i].X;
1254 ptf[4 * i + 1].Y = ptf[4 * i].Y = rects[i].Y;
1255 ptf[4 * i + 2].X = ptf[4 * i + 1].X = rects[i].X + rects[i].Width;
1256 ptf[4 * i + 3].Y = ptf[4 * i + 2].Y = rects[i].Y + rects[i].Height;
1259 save_state = prepare_dc(graphics, pen);
1260 SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
1262 transform_and_round_points(graphics, pti, ptf, 4 * count);
1264 for(i = 0; i < count; i++)
1265 Polygon(graphics->hdc, &pti[4 * i], 4);
1267 restore_dc(graphics, save_state);
1275 GpStatus WINGDIPAPI GdipDrawString(GpGraphics *graphics, GDIPCONST WCHAR *string,
1276 INT length, GDIPCONST GpFont *font, GDIPCONST RectF *rect,
1277 GDIPCONST GpStringFormat *format, GDIPCONST GpBrush *brush)
1282 TEXTMETRICW textmet;
1283 GpPointF pt[2], rectcpy[4];
1286 REAL angle, ang_cos, ang_sin, rel_width, rel_height;
1287 INT sum = 0, height = 0, fit, fitcpy, save_state, i, j, lret, nwidth,
1292 if(!graphics || !string || !font || !brush || !rect)
1293 return InvalidParameter;
1295 if((brush->bt != BrushTypeSolidColor)){
1296 FIXME("not implemented for given parameters\n");
1297 return NotImplemented;
1301 TRACE("may be ignoring some format flags: attr %x\n", format->attr);
1303 if(length == -1) length = lstrlenW(string);
1305 stringdup = GdipAlloc(length * sizeof(WCHAR));
1306 if(!stringdup) return OutOfMemory;
1308 save_state = SaveDC(graphics->hdc);
1309 SetBkMode(graphics->hdc, TRANSPARENT);
1310 SetTextColor(graphics->hdc, brush->lb.lbColor);
1312 rectcpy[3].X = rectcpy[0].X = rect->X;
1313 rectcpy[1].Y = rectcpy[0].Y = rect->Y;
1314 rectcpy[2].X = rectcpy[1].X = rect->X + rect->Width;
1315 rectcpy[3].Y = rectcpy[2].Y = rect->Y + rect->Height;
1316 transform_and_round_points(graphics, corners, rectcpy, 4);
1318 if(roundr(rect->Width) == 0 && roundr(rect->Height) == 0){
1319 rel_width = rel_height = 1.0;
1320 nwidth = nheight = INT_MAX;
1323 rel_width = sqrt((corners[1].x - corners[0].x) * (corners[1].x - corners[0].x) +
1324 (corners[1].y - corners[0].y) * (corners[1].y - corners[0].y))
1326 rel_height = sqrt((corners[2].x - corners[1].x) * (corners[2].x - corners[1].x) +
1327 (corners[2].y - corners[1].y) * (corners[2].y - corners[1].y))
1330 nwidth = roundr(rel_width * rect->Width);
1331 nheight = roundr(rel_height * rect->Height);
1332 rgn = CreatePolygonRgn(corners, 4, ALTERNATE);
1333 SelectClipRgn(graphics->hdc, rgn);
1336 /* Use gdi to find the font, then perform transformations on it (height,
1338 SelectObject(graphics->hdc, CreateFontIndirectW(&font->lfw));
1339 GetTextMetricsW(graphics->hdc, &textmet);
1340 memcpy(&lfw, &font->lfw, sizeof(LOGFONTW));
1342 lfw.lfHeight = roundr(((REAL)lfw.lfHeight) * rel_height);
1343 lfw.lfWidth = roundr(textmet.tmAveCharWidth * rel_width);
1349 GdipTransformMatrixPoints(graphics->worldtrans, pt, 2);
1350 angle = gdiplus_atan2((pt[1].Y - pt[0].Y), (pt[1].X - pt[0].X));
1351 ang_cos = cos(angle);
1352 ang_sin = sin(angle);
1353 lfw.lfEscapement = lfw.lfOrientation = -roundr((angle / M_PI) * 1800.0);
1355 gdifont = CreateFontIndirectW(&lfw);
1356 DeleteObject(SelectObject(graphics->hdc, CreateFontIndirectW(&lfw)));
1358 for(i = 0, j = 0; i < length; i++){
1359 if(!isprintW(string[i]) && (string[i] != '\n'))
1362 stringdup[j] = string[i];
1369 while(sum < length){
1370 drawcoord.left = corners[0].x + roundr(ang_sin * (REAL) height);
1371 drawcoord.top = corners[0].y + roundr(ang_cos * (REAL) height);
1373 GetTextExtentExPointW(graphics->hdc, stringdup + sum, length - sum,
1374 nwidth, &fit, NULL, &size);
1378 DrawTextW(graphics->hdc, stringdup + sum, 1, &drawcoord, DT_NOCLIP |
1383 for(lret = 0; lret < fit; lret++)
1384 if(*(stringdup + sum + lret) == '\n')
1387 /* Line break code (may look strange, but it imitates windows). */
1389 fit = lret; /* this is not an off-by-one error */
1390 else if(fit < (length - sum)){
1391 if(*(stringdup + sum + fit) == ' ')
1392 while(*(stringdup + sum + fit) == ' ')
1395 while(*(stringdup + sum + fit - 1) != ' '){
1398 if(*(stringdup + sum + fit) == '\t')
1407 DrawTextW(graphics->hdc, stringdup + sum, min(length - sum, fit),
1408 &drawcoord, DT_NOCLIP | DT_EXPANDTABS);
1410 sum += fit + (lret < fitcpy ? 1 : 0);
1413 if(height > nheight)
1416 /* Stop if this was a linewrap (but not if it was a linebreak). */
1417 if((lret == fitcpy) && format && (format->attr & StringFormatFlagsNoWrap))
1422 DeleteObject(gdifont);
1424 RestoreDC(graphics->hdc, save_state);
1429 GpStatus WINGDIPAPI GdipFillPath(GpGraphics *graphics, GpBrush *brush, GpPath *path)
1434 if(!brush || !graphics || !path)
1435 return InvalidParameter;
1437 save_state = SaveDC(graphics->hdc);
1438 EndPath(graphics->hdc);
1439 SelectObject(graphics->hdc, brush->gdibrush);
1440 SetPolyFillMode(graphics->hdc, (path->fill == FillModeAlternate ? ALTERNATE
1443 BeginPath(graphics->hdc);
1444 retval = draw_poly(graphics, NULL, path->pathdata.Points,
1445 path->pathdata.Types, path->pathdata.Count, FALSE);
1450 EndPath(graphics->hdc);
1451 FillPath(graphics->hdc);
1456 RestoreDC(graphics->hdc, save_state);
1461 GpStatus WINGDIPAPI GdipFillPie(GpGraphics *graphics, GpBrush *brush, REAL x,
1462 REAL y, REAL width, REAL height, REAL startAngle, REAL sweepAngle)
1466 if(!graphics || !brush)
1467 return InvalidParameter;
1469 save_state = SaveDC(graphics->hdc);
1470 EndPath(graphics->hdc);
1471 SelectObject(graphics->hdc, brush->gdibrush);
1472 SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1474 draw_pie(graphics, x, y, width, height, startAngle, sweepAngle);
1476 RestoreDC(graphics->hdc, save_state);
1481 GpStatus WINGDIPAPI GdipFillPolygon(GpGraphics *graphics, GpBrush *brush,
1482 GDIPCONST GpPointF *points, INT count, GpFillMode fillMode)
1485 GpPointF *ptf = NULL;
1487 GpStatus retval = Ok;
1489 if(!graphics || !brush || !points || !count)
1490 return InvalidParameter;
1492 ptf = GdipAlloc(count * sizeof(GpPointF));
1493 pti = GdipAlloc(count * sizeof(POINT));
1495 retval = OutOfMemory;
1499 memcpy(ptf, points, count * sizeof(GpPointF));
1501 save_state = SaveDC(graphics->hdc);
1502 EndPath(graphics->hdc);
1503 SelectObject(graphics->hdc, brush->gdibrush);
1504 SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1505 SetPolyFillMode(graphics->hdc, (fillMode == FillModeAlternate ? ALTERNATE
1508 transform_and_round_points(graphics, pti, ptf, count);
1509 Polygon(graphics->hdc, pti, count);
1511 RestoreDC(graphics->hdc, save_state);
1520 GpStatus WINGDIPAPI GdipFillPolygonI(GpGraphics *graphics, GpBrush *brush,
1521 GDIPCONST GpPoint *points, INT count, GpFillMode fillMode)
1524 GpPointF *ptf = NULL;
1526 GpStatus retval = Ok;
1528 if(!graphics || !brush || !points || !count)
1529 return InvalidParameter;
1531 ptf = GdipAlloc(count * sizeof(GpPointF));
1532 pti = GdipAlloc(count * sizeof(POINT));
1534 retval = OutOfMemory;
1538 for(i = 0; i < count; i ++){
1539 ptf[i].X = (REAL) points[i].X;
1540 ptf[i].Y = (REAL) points[i].Y;
1543 save_state = SaveDC(graphics->hdc);
1544 EndPath(graphics->hdc);
1545 SelectObject(graphics->hdc, brush->gdibrush);
1546 SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1547 SetPolyFillMode(graphics->hdc, (fillMode == FillModeAlternate ? ALTERNATE
1550 transform_and_round_points(graphics, pti, ptf, count);
1551 Polygon(graphics->hdc, pti, count);
1553 RestoreDC(graphics->hdc, save_state);
1562 GpStatus WINGDIPAPI GdipFillRectangle(GpGraphics *graphics, GpBrush *brush,
1563 REAL x, REAL y, REAL width, REAL height)
1569 if(!graphics || !brush)
1570 return InvalidParameter;
1574 ptf[1].X = x + width;
1576 ptf[2].X = x + width;
1577 ptf[2].Y = y + height;
1579 ptf[3].Y = y + height;
1581 save_state = SaveDC(graphics->hdc);
1582 EndPath(graphics->hdc);
1583 SelectObject(graphics->hdc, brush->gdibrush);
1584 SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1586 transform_and_round_points(graphics, pti, ptf, 4);
1588 Polygon(graphics->hdc, pti, 4);
1590 RestoreDC(graphics->hdc, save_state);
1595 GpStatus WINGDIPAPI GdipFillRectangleI(GpGraphics *graphics, GpBrush *brush,
1596 INT x, INT y, INT width, INT height)
1602 if(!graphics || !brush)
1603 return InvalidParameter;
1607 ptf[1].X = x + width;
1609 ptf[2].X = x + width;
1610 ptf[2].Y = y + height;
1612 ptf[3].Y = y + height;
1614 save_state = SaveDC(graphics->hdc);
1615 EndPath(graphics->hdc);
1616 SelectObject(graphics->hdc, brush->gdibrush);
1617 SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1619 transform_and_round_points(graphics, pti, ptf, 4);
1621 Polygon(graphics->hdc, pti, 4);
1623 RestoreDC(graphics->hdc, save_state);
1628 /* FIXME: Compositing mode is not used anywhere except the getter/setter. */
1629 GpStatus WINGDIPAPI GdipGetCompositingMode(GpGraphics *graphics,
1630 CompositingMode *mode)
1632 if(!graphics || !mode)
1633 return InvalidParameter;
1635 *mode = graphics->compmode;
1640 /* FIXME: Compositing quality is not used anywhere except the getter/setter. */
1641 GpStatus WINGDIPAPI GdipGetCompositingQuality(GpGraphics *graphics,
1642 CompositingQuality *quality)
1644 if(!graphics || !quality)
1645 return InvalidParameter;
1647 *quality = graphics->compqual;
1652 /* FIXME: Interpolation mode is not used anywhere except the getter/setter. */
1653 GpStatus WINGDIPAPI GdipGetInterpolationMode(GpGraphics *graphics,
1654 InterpolationMode *mode)
1656 if(!graphics || !mode)
1657 return InvalidParameter;
1659 *mode = graphics->interpolation;
1664 GpStatus WINGDIPAPI GdipGetPageScale(GpGraphics *graphics, REAL *scale)
1666 if(!graphics || !scale)
1667 return InvalidParameter;
1669 *scale = graphics->scale;
1674 GpStatus WINGDIPAPI GdipGetPageUnit(GpGraphics *graphics, GpUnit *unit)
1676 if(!graphics || !unit)
1677 return InvalidParameter;
1679 *unit = graphics->unit;
1684 /* FIXME: Pixel offset mode is not used anywhere except the getter/setter. */
1685 GpStatus WINGDIPAPI GdipGetPixelOffsetMode(GpGraphics *graphics, PixelOffsetMode
1688 if(!graphics || !mode)
1689 return InvalidParameter;
1691 *mode = graphics->pixeloffset;
1696 /* FIXME: Smoothing mode is not used anywhere except the getter/setter. */
1697 GpStatus WINGDIPAPI GdipGetSmoothingMode(GpGraphics *graphics, SmoothingMode *mode)
1699 if(!graphics || !mode)
1700 return InvalidParameter;
1702 *mode = graphics->smoothing;
1707 /* FIXME: Text rendering hint is not used anywhere except the getter/setter. */
1708 GpStatus WINGDIPAPI GdipGetTextRenderingHint(GpGraphics *graphics,
1709 TextRenderingHint *hint)
1711 if(!graphics || !hint)
1712 return InvalidParameter;
1714 *hint = graphics->texthint;
1719 GpStatus WINGDIPAPI GdipGetWorldTransform(GpGraphics *graphics, GpMatrix *matrix)
1721 if(!graphics || !matrix)
1722 return InvalidParameter;
1724 memcpy(matrix, graphics->worldtrans, sizeof(GpMatrix));
1728 /* Find the smallest rectangle that bounds the text when it is printed in rect
1729 * according to the format options listed in format. If rect has 0 width and
1730 * height, then just find the smallest rectangle that bounds the text when it's
1731 * printed at location (rect->X, rect-Y). */
1732 GpStatus WINGDIPAPI GdipMeasureString(GpGraphics *graphics,
1733 GDIPCONST WCHAR *string, INT length, GDIPCONST GpFont *font,
1734 GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format, RectF *bounds,
1735 INT *codepointsfitted, INT *linesfilled)
1739 INT sum = 0, height = 0, fit, fitcpy, max_width = 0, i, j, lret, nwidth,
1743 if(!graphics || !string || !font || !rect)
1744 return InvalidParameter;
1746 if(codepointsfitted || linesfilled){
1747 FIXME("not implemented for given parameters\n");
1748 return NotImplemented;
1752 TRACE("may be ignoring some format flags: attr %x\n", format->attr);
1754 if(length == -1) length = lstrlenW(string);
1756 stringdup = GdipAlloc(length * sizeof(WCHAR));
1757 if(!stringdup) return OutOfMemory;
1759 oldfont = SelectObject(graphics->hdc, CreateFontIndirectW(&font->lfw));
1760 nwidth = roundr(rect->Width);
1761 nheight = roundr(rect->Height);
1763 if((nwidth == 0) && (nheight == 0))
1764 nwidth = nheight = INT_MAX;
1766 for(i = 0, j = 0; i < length; i++){
1767 if(!isprintW(string[i]) && (string[i] != '\n'))
1770 stringdup[j] = string[i];
1777 while(sum < length){
1778 GetTextExtentExPointW(graphics->hdc, stringdup + sum, length - sum,
1779 nwidth, &fit, NULL, &size);
1785 for(lret = 0; lret < fit; lret++)
1786 if(*(stringdup + sum + lret) == '\n')
1789 /* Line break code (may look strange, but it imitates windows). */
1791 fit = lret; /* this is not an off-by-one error */
1792 else if(fit < (length - sum)){
1793 if(*(stringdup + sum + fit) == ' ')
1794 while(*(stringdup + sum + fit) == ' ')
1797 while(*(stringdup + sum + fit - 1) != ' '){
1800 if(*(stringdup + sum + fit) == '\t')
1810 GetTextExtentExPointW(graphics->hdc, stringdup + sum, fit,
1811 nwidth, &j, NULL, &size);
1813 sum += fit + (lret < fitcpy ? 1 : 0);
1815 max_width = max(max_width, size.cx);
1817 if(height > nheight)
1820 /* Stop if this was a linewrap (but not if it was a linebreak). */
1821 if((lret == fitcpy) && format && (format->attr & StringFormatFlagsNoWrap))
1825 bounds->X = rect->X;
1826 bounds->Y = rect->Y;
1827 bounds->Width = (REAL)max_width;
1828 bounds->Height = (REAL) min(height, nheight);
1830 DeleteObject(SelectObject(graphics->hdc, oldfont));
1835 GpStatus WINGDIPAPI GdipRestoreGraphics(GpGraphics *graphics, GraphicsState state)
1840 return InvalidParameter;
1843 FIXME("graphics state not implemented\n");
1845 return NotImplemented;
1848 GpStatus WINGDIPAPI GdipRotateWorldTransform(GpGraphics *graphics, REAL angle,
1849 GpMatrixOrder order)
1852 return InvalidParameter;
1854 return GdipRotateMatrix(graphics->worldtrans, angle, order);
1857 GpStatus WINGDIPAPI GdipSaveGraphics(GpGraphics *graphics, GraphicsState *state)
1861 if(!graphics || !state)
1862 return InvalidParameter;
1865 FIXME("graphics state not implemented\n");
1867 return NotImplemented;
1870 GpStatus WINGDIPAPI GdipScaleWorldTransform(GpGraphics *graphics, REAL sx,
1871 REAL sy, GpMatrixOrder order)
1874 return InvalidParameter;
1876 return GdipScaleMatrix(graphics->worldtrans, sx, sy, order);
1879 GpStatus WINGDIPAPI GdipSetCompositingMode(GpGraphics *graphics,
1880 CompositingMode mode)
1883 return InvalidParameter;
1885 graphics->compmode = mode;
1890 GpStatus WINGDIPAPI GdipSetCompositingQuality(GpGraphics *graphics,
1891 CompositingQuality quality)
1894 return InvalidParameter;
1896 graphics->compqual = quality;
1901 GpStatus WINGDIPAPI GdipSetInterpolationMode(GpGraphics *graphics,
1902 InterpolationMode mode)
1905 return InvalidParameter;
1907 graphics->interpolation = mode;
1912 GpStatus WINGDIPAPI GdipSetPageScale(GpGraphics *graphics, REAL scale)
1914 if(!graphics || (scale <= 0.0))
1915 return InvalidParameter;
1917 graphics->scale = scale;
1922 GpStatus WINGDIPAPI GdipSetPageUnit(GpGraphics *graphics, GpUnit unit)
1924 if(!graphics || (unit == UnitWorld))
1925 return InvalidParameter;
1927 graphics->unit = unit;
1932 GpStatus WINGDIPAPI GdipSetPixelOffsetMode(GpGraphics *graphics, PixelOffsetMode
1936 return InvalidParameter;
1938 graphics->pixeloffset = mode;
1943 GpStatus WINGDIPAPI GdipSetSmoothingMode(GpGraphics *graphics, SmoothingMode mode)
1946 return InvalidParameter;
1948 graphics->smoothing = mode;
1953 GpStatus WINGDIPAPI GdipSetTextRenderingHint(GpGraphics *graphics,
1954 TextRenderingHint hint)
1957 return InvalidParameter;
1959 graphics->texthint = hint;
1964 GpStatus WINGDIPAPI GdipSetWorldTransform(GpGraphics *graphics, GpMatrix *matrix)
1966 if(!graphics || !matrix)
1967 return InvalidParameter;
1969 GdipDeleteMatrix(graphics->worldtrans);
1970 return GdipCloneMatrix(matrix, &graphics->worldtrans);
1973 GpStatus WINGDIPAPI GdipTranslateWorldTransform(GpGraphics *graphics, REAL dx,
1974 REAL dy, GpMatrixOrder order)
1977 return InvalidParameter;
1979 return GdipTranslateMatrix(graphics->worldtrans, dx, dy, order);