| /* |
| * X11 graphics driver graphics functions |
| * |
| * Copyright 1993,1994 Alexandre Julliard |
| */ |
| |
| #include <math.h> |
| #ifdef HAVE_FLOAT_H |
| # include <float.h> |
| #endif |
| #include <stdlib.h> |
| #include "ts_xlib.h" |
| #include "ts_xutil.h" |
| #include <X11/Intrinsic.h> |
| #ifndef PI |
| #define PI M_PI |
| #endif |
| #include <string.h> |
| |
| #include "x11drv.h" |
| #include "bitmap.h" |
| #include "gdi.h" |
| #include "graphics.h" |
| #include "dc.h" |
| #include "bitmap.h" |
| #include "callback.h" |
| #include "metafile.h" |
| #include "palette.h" |
| #include "color.h" |
| #include "region.h" |
| #include "struct32.h" |
| #include "debug.h" |
| #include "xmalloc.h" |
| |
| |
| /********************************************************************** |
| * X11DRV_MoveToEx |
| */ |
| BOOL32 |
| X11DRV_MoveToEx(DC *dc,INT32 x,INT32 y,LPPOINT32 pt) { |
| if (pt) |
| { |
| pt->x = dc->w.CursPosX; |
| pt->y = dc->w.CursPosY; |
| } |
| dc->w.CursPosX = x; |
| dc->w.CursPosY = y; |
| return TRUE; |
| } |
| |
| /*********************************************************************** |
| * X11DRV_LineTo |
| */ |
| BOOL32 |
| X11DRV_LineTo( DC *dc, INT32 x, INT32 y ) |
| { |
| if (DC_SetupGCForPen( dc )) |
| TSXDrawLine(display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + XLPTODP( dc, dc->w.CursPosX ), |
| dc->w.DCOrgY + YLPTODP( dc, dc->w.CursPosY ), |
| dc->w.DCOrgX + XLPTODP( dc, x ), |
| dc->w.DCOrgY + YLPTODP( dc, y ) ); |
| dc->w.CursPosX = x; |
| dc->w.CursPosY = y; |
| return TRUE; |
| } |
| |
| |
| |
| /*********************************************************************** |
| * GRAPH_DrawArc |
| * |
| * Helper functions for Arc(), Chord() and Pie(). |
| * 'lines' is the number of lines to draw: 0 for Arc, 1 for Chord, 2 for Pie. |
| */ |
| static BOOL32 |
| X11DRV_DrawArc( DC *dc, INT32 left, INT32 top, INT32 right, |
| INT32 bottom, INT32 xstart, INT32 ystart, |
| INT32 xend, INT32 yend, INT32 lines ) |
| { |
| INT32 xcenter, ycenter, istart_angle, idiff_angle, tmp; |
| double start_angle, end_angle; |
| XPoint points[3]; |
| |
| left = XLPTODP( dc, left ); |
| top = YLPTODP( dc, top ); |
| right = XLPTODP( dc, right ); |
| bottom = YLPTODP( dc, bottom ); |
| xstart = XLPTODP( dc, xstart ); |
| ystart = YLPTODP( dc, ystart ); |
| xend = XLPTODP( dc, xend ); |
| yend = YLPTODP( dc, yend ); |
| |
| if ((left == right) || (top == bottom)) return FALSE; |
| |
| if (left > right) { tmp=left; left=right; right=tmp; } |
| if (top > bottom) { tmp=top; top=bottom; bottom=tmp; } |
| xcenter = (right + left) / 2; |
| ycenter = (bottom + top) / 2; |
| start_angle = atan2( (double)(ycenter-ystart)*(right-left), |
| (double)(xstart-xcenter)*(bottom-top) ); |
| end_angle = atan2( (double)(ycenter-yend)*(right-left), |
| (double)(xend-xcenter)*(bottom-top) ); |
| if ((xstart==xend)&&(ystart==yend)) |
| { /* A lazy program delivers xstart=xend=ystart=yend=0) */ |
| start_angle = 0; |
| end_angle = 2* PI; |
| } |
| else /* notorious cases */ |
| if ((start_angle == PI)&&( end_angle <0)) |
| start_angle = - PI; |
| else |
| if ((end_angle == PI)&&( start_angle <0)) |
| end_angle = - PI; |
| istart_angle = (INT32)(start_angle * 180 * 64 / PI); |
| idiff_angle = (INT32)((end_angle - start_angle) * 180 * 64 / PI ); |
| if (idiff_angle <= 0) idiff_angle += 360 * 64; |
| |
| /* Fill arc with brush if Chord() or Pie() */ |
| |
| if ((lines > 0) && DC_SetupGCForBrush( dc )) |
| { |
| TSXSetArcMode( display, dc->u.x.gc, (lines==1) ? ArcChord : ArcPieSlice); |
| TSXFillArc( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left, dc->w.DCOrgY + top, |
| right-left-1, bottom-top-1, istart_angle, idiff_angle ); |
| } |
| |
| /* Draw arc and lines */ |
| |
| if (!DC_SetupGCForPen( dc )) return TRUE; |
| TSXDrawArc( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left, dc->w.DCOrgY + top, |
| right-left-1, bottom-top-1, istart_angle, idiff_angle ); |
| if (!lines) return TRUE; |
| |
| points[0].x = dc->w.DCOrgX + xcenter + (int)(cos(start_angle) * (right-left) / 2); |
| points[0].y = dc->w.DCOrgY + ycenter - (int)(sin(start_angle) * (bottom-top) / 2); |
| points[1].x = dc->w.DCOrgX + xcenter + (int)(cos(end_angle) * (right-left) / 2); |
| points[1].y = dc->w.DCOrgY + ycenter - (int)(sin(end_angle) * (bottom-top) / 2); |
| if (lines == 2) |
| { |
| points[2] = points[1]; |
| points[1].x = dc->w.DCOrgX + xcenter; |
| points[1].y = dc->w.DCOrgY + ycenter; |
| } |
| TSXDrawLines( display, dc->u.x.drawable, dc->u.x.gc, |
| points, lines+1, CoordModeOrigin ); |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * X11DRV_Arc |
| */ |
| BOOL32 |
| X11DRV_Arc( DC *dc, INT32 left, INT32 top, INT32 right, INT32 bottom, |
| INT32 xstart, INT32 ystart, INT32 xend, INT32 yend ) |
| { |
| return X11DRV_DrawArc( dc, left, top, right, bottom, |
| xstart, ystart, xend, yend, 0 ); |
| } |
| |
| |
| /*********************************************************************** |
| * X11DRV_Pie |
| */ |
| BOOL32 |
| X11DRV_Pie( DC *dc, INT32 left, INT32 top, INT32 right, INT32 bottom, |
| INT32 xstart, INT32 ystart, INT32 xend, INT32 yend ) |
| { |
| return X11DRV_DrawArc( dc, left, top, right, bottom, |
| xstart, ystart, xend, yend, 2 ); |
| } |
| |
| /*********************************************************************** |
| * X11DRV_Chord |
| */ |
| BOOL32 |
| X11DRV_Chord( DC *dc, INT32 left, INT32 top, INT32 right, INT32 bottom, |
| INT32 xstart, INT32 ystart, INT32 xend, INT32 yend ) |
| { |
| return X11DRV_DrawArc( dc, left, top, right, bottom, |
| xstart, ystart, xend, yend, 1 ); |
| } |
| |
| |
| /*********************************************************************** |
| * X11DRV_Ellipse |
| */ |
| BOOL32 |
| X11DRV_Ellipse( DC *dc, INT32 left, INT32 top, INT32 right, INT32 bottom ) |
| { |
| left = XLPTODP( dc, left ); |
| top = YLPTODP( dc, top ); |
| right = XLPTODP( dc, right ); |
| bottom = YLPTODP( dc, bottom ); |
| if ((left == right) || (top == bottom)) return FALSE; |
| |
| if (right < left) { INT32 tmp = right; right = left; left = tmp; } |
| if (bottom < top) { INT32 tmp = bottom; bottom = top; top = tmp; } |
| |
| if ((dc->u.x.pen.style == PS_INSIDEFRAME) && |
| (dc->u.x.pen.width < right-left-1) && |
| (dc->u.x.pen.width < bottom-top-1)) |
| { |
| left += dc->u.x.pen.width / 2; |
| right -= (dc->u.x.pen.width + 1) / 2; |
| top += dc->u.x.pen.width / 2; |
| bottom -= (dc->u.x.pen.width + 1) / 2; |
| } |
| |
| if (DC_SetupGCForBrush( dc )) |
| TSXFillArc( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left, dc->w.DCOrgY + top, |
| right-left-1, bottom-top-1, 0, 360*64 ); |
| if (DC_SetupGCForPen( dc )) |
| TSXDrawArc( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left, dc->w.DCOrgY + top, |
| right-left-1, bottom-top-1, 0, 360*64 ); |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * X11DRV_Rectangle |
| */ |
| BOOL32 |
| X11DRV_Rectangle(DC *dc, INT32 left, INT32 top, INT32 right, INT32 bottom) |
| { |
| INT32 width; |
| left = XLPTODP( dc, left ); |
| top = YLPTODP( dc, top ); |
| right = XLPTODP( dc, right ); |
| bottom = YLPTODP( dc, bottom ); |
| |
| if (right < left) { INT32 tmp = right; right = left; left = tmp; } |
| if (bottom < top) { INT32 tmp = bottom; bottom = top; top = tmp; } |
| |
| if ((left == right) || (top == bottom)) |
| { |
| #if 0 |
| if (DC_SetupGCForPen( dc )) |
| TSXDrawLine(display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left, |
| dc->w.DCOrgY + top, |
| dc->w.DCOrgX + right, |
| dc->w.DCOrgY + bottom); |
| #endif |
| return TRUE; |
| } |
| width = dc->u.x.pen.width; |
| if (!width) width = 1; |
| if(dc->u.x.pen.style == PS_NULL) width = 0; |
| |
| if ((dc->u.x.pen.style == PS_INSIDEFRAME) && |
| (width < right-left) && (width < bottom-top)) |
| { |
| left += width / 2; |
| right -= (width + 1) / 2; |
| top += width / 2; |
| bottom -= (width + 1) / 2; |
| } |
| |
| if ((right > left + width) && (bottom > top + width)) |
| { |
| if (DC_SetupGCForBrush( dc )) |
| TSXFillRectangle( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left + (width + 1) / 2, |
| dc->w.DCOrgY + top + (width + 1) / 2, |
| right-left-width-1, bottom-top-width-1); |
| } |
| if (DC_SetupGCForPen( dc )) |
| TSXDrawRectangle( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left, dc->w.DCOrgY + top, |
| right-left-1, bottom-top-1 ); |
| return TRUE; |
| } |
| |
| /*********************************************************************** |
| * X11DRV_RoundRect |
| */ |
| BOOL32 |
| X11DRV_RoundRect( DC *dc, INT32 left, INT32 top, INT32 right, |
| INT32 bottom, INT32 ell_width, INT32 ell_height ) |
| { |
| TRACE(graphics, "(%d %d %d %d %d %d\n", |
| left, top, right, bottom, ell_width, ell_height); |
| |
| left = XLPTODP( dc, left ); |
| top = YLPTODP( dc, top ); |
| right = XLPTODP( dc, right ); |
| bottom = YLPTODP( dc, bottom ); |
| ell_width = abs( ell_width * dc->vportExtX / dc->wndExtX ); |
| ell_height = abs( ell_height * dc->vportExtY / dc->wndExtY ); |
| |
| /* Fix the coordinates */ |
| |
| if (right < left) { INT32 tmp = right; right = left; left = tmp; } |
| if (bottom < top) { INT32 tmp = bottom; bottom = top; top = tmp; } |
| if (ell_width > right - left) ell_width = right - left; |
| if (ell_height > bottom - top) ell_height = bottom - top; |
| |
| if (DC_SetupGCForBrush( dc )) |
| { |
| if (ell_width && ell_height) |
| { |
| TSXFillArc( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left, dc->w.DCOrgY + top, |
| ell_width, ell_height, 90 * 64, 90 * 64 ); |
| TSXFillArc( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left, dc->w.DCOrgY + bottom - ell_height, |
| ell_width, ell_height, 180 * 64, 90 * 64 ); |
| TSXFillArc( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + right - ell_width, |
| dc->w.DCOrgY + bottom - ell_height, |
| ell_width, ell_height, 270 * 64, 90 * 64 ); |
| TSXFillArc( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + right - ell_width, dc->w.DCOrgY + top, |
| ell_width, ell_height, 0, 90 * 64 ); |
| } |
| if (ell_width < right - left) |
| { |
| TSXFillRectangle( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left + ell_width / 2, |
| dc->w.DCOrgY + top, |
| right - left - ell_width, ell_height / 2 ); |
| TSXFillRectangle( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left + ell_width / 2, |
| dc->w.DCOrgY + bottom - (ell_height+1) / 2, |
| right - left - ell_width, (ell_height+1) / 2 ); |
| } |
| if (ell_height < bottom - top) |
| { |
| TSXFillRectangle( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left, |
| dc->w.DCOrgY + top + ell_height / 2, |
| right - left, bottom - top - ell_height ); |
| } |
| } |
| if (DC_SetupGCForPen(dc)) |
| { |
| if (ell_width && ell_height) |
| { |
| TSXDrawArc( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left, dc->w.DCOrgY + top, |
| ell_width, ell_height, 90 * 64, 90 * 64 ); |
| TSXDrawArc( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left, dc->w.DCOrgY + bottom - ell_height, |
| ell_width, ell_height, 180 * 64, 90 * 64 ); |
| TSXDrawArc( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + right - ell_width, |
| dc->w.DCOrgY + bottom - ell_height, |
| ell_width, ell_height, 270 * 64, 90 * 64 ); |
| TSXDrawArc( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + right - ell_width, dc->w.DCOrgY + top, |
| ell_width, ell_height, 0, 90 * 64 ); |
| } |
| if (ell_width < right - left) |
| { |
| TSXDrawLine( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left + ell_width / 2, |
| dc->w.DCOrgY + top, |
| dc->w.DCOrgX + right - ell_width / 2, |
| dc->w.DCOrgY + top ); |
| TSXDrawLine( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left + ell_width / 2, |
| dc->w.DCOrgY + bottom, |
| dc->w.DCOrgX + right - ell_width / 2, |
| dc->w.DCOrgY + bottom ); |
| } |
| if (ell_height < bottom - top) |
| { |
| TSXDrawLine( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + right, |
| dc->w.DCOrgY + top + ell_height / 2, |
| dc->w.DCOrgX + right, |
| dc->w.DCOrgY + bottom - ell_height / 2 ); |
| TSXDrawLine( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + left, |
| dc->w.DCOrgY + top + ell_height / 2, |
| dc->w.DCOrgX + left, |
| dc->w.DCOrgY + bottom - ell_height / 2 ); |
| } |
| } |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * X11DRV_SetPixel |
| */ |
| COLORREF |
| X11DRV_SetPixel( DC *dc, INT32 x, INT32 y, COLORREF color ) |
| { |
| Pixel pixel; |
| |
| x = dc->w.DCOrgX + XLPTODP( dc, x ); |
| y = dc->w.DCOrgY + YLPTODP( dc, y ); |
| pixel = COLOR_ToPhysical( dc, color ); |
| |
| TSXSetForeground( display, dc->u.x.gc, pixel ); |
| TSXSetFunction( display, dc->u.x.gc, GXcopy ); |
| TSXDrawPoint( display, dc->u.x.drawable, dc->u.x.gc, x, y ); |
| |
| /* inefficient but simple... */ |
| |
| return COLOR_ToLogical(pixel); |
| } |
| |
| |
| /*********************************************************************** |
| * X11DRV_GetPixel |
| */ |
| COLORREF |
| X11DRV_GetPixel( DC *dc, INT32 x, INT32 y ) |
| { |
| static Pixmap pixmap = 0; |
| XImage * image; |
| int pixel; |
| |
| x = dc->w.DCOrgX + XLPTODP( dc, x ); |
| y = dc->w.DCOrgY + YLPTODP( dc, y ); |
| EnterCriticalSection( &X11DRV_CritSection ); |
| if (dc->w.flags & DC_MEMORY) |
| { |
| image = XGetImage( display, dc->u.x.drawable, x, y, 1, 1, |
| AllPlanes, ZPixmap ); |
| } |
| else |
| { |
| /* If we are reading from the screen, use a temporary copy */ |
| /* to avoid a BadMatch error */ |
| if (!pixmap) pixmap = XCreatePixmap( display, rootWindow, |
| 1, 1, dc->w.bitsPerPixel ); |
| XCopyArea( display, dc->u.x.drawable, pixmap, BITMAP_colorGC, |
| x, y, 1, 1, 0, 0 ); |
| image = XGetImage( display, pixmap, 0, 0, 1, 1, AllPlanes, ZPixmap ); |
| } |
| pixel = XGetPixel( image, 0, 0 ); |
| XDestroyImage( image ); |
| LeaveCriticalSection( &X11DRV_CritSection ); |
| |
| return COLOR_ToLogical(pixel); |
| } |
| |
| |
| /*********************************************************************** |
| * X11DRV_PaintRgn |
| */ |
| BOOL32 |
| X11DRV_PaintRgn( DC *dc, HRGN32 hrgn ) |
| { |
| RECT32 box; |
| HRGN32 tmpVisRgn, prevVisRgn; |
| HDC32 hdc = dc->hSelf; /* FIXME: should not mix dc/hdc this way */ |
| |
| if (!(tmpVisRgn = CreateRectRgn32( 0, 0, 0, 0 ))) return FALSE; |
| |
| /* Transform region into device co-ords */ |
| if (!REGION_LPTODP( hdc, tmpVisRgn, hrgn )) { |
| DeleteObject32( tmpVisRgn ); |
| return FALSE; |
| } |
| |
| /* Modify visible region */ |
| if (!(prevVisRgn = SaveVisRgn( hdc ))) { |
| DeleteObject32( tmpVisRgn ); |
| return FALSE; |
| } |
| CombineRgn32( tmpVisRgn, prevVisRgn, tmpVisRgn, RGN_AND ); |
| SelectVisRgn( hdc, tmpVisRgn ); |
| DeleteObject32( tmpVisRgn ); |
| |
| /* Fill the region */ |
| |
| GetRgnBox32( dc->w.hGCClipRgn, &box ); |
| if (DC_SetupGCForBrush( dc )) |
| TSXFillRectangle( display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + box.left, dc->w.DCOrgY + box.top, |
| box.right-box.left, box.bottom-box.top ); |
| |
| /* Restore the visible region */ |
| |
| RestoreVisRgn( hdc ); |
| return TRUE; |
| } |
| |
| /********************************************************************** |
| * X11DRV_Polyline |
| */ |
| BOOL32 |
| X11DRV_Polyline( DC *dc, const LPPOINT32 pt, INT32 count ) |
| { |
| register int i; |
| |
| if (DC_SetupGCForPen( dc )) |
| for (i = 0; i < count-1; i ++) |
| TSXDrawLine (display, dc->u.x.drawable, dc->u.x.gc, |
| dc->w.DCOrgX + XLPTODP(dc, pt [i].x), |
| dc->w.DCOrgY + YLPTODP(dc, pt [i].y), |
| dc->w.DCOrgX + XLPTODP(dc, pt [i+1].x), |
| dc->w.DCOrgY + YLPTODP(dc, pt [i+1].y)); |
| return TRUE; |
| } |
| |
| |
| /********************************************************************** |
| * X11DRV_Polygon |
| */ |
| BOOL32 |
| X11DRV_Polygon( DC *dc, LPPOINT32 pt, INT32 count ) |
| { |
| register int i; |
| XPoint *points; |
| |
| points = (XPoint *) xmalloc (sizeof (XPoint) * (count+1)); |
| for (i = 0; i < count; i++) |
| { |
| points[i].x = dc->w.DCOrgX + XLPTODP( dc, pt[i].x ); |
| points[i].y = dc->w.DCOrgY + YLPTODP( dc, pt[i].y ); |
| } |
| points[count] = points[0]; |
| |
| if (DC_SetupGCForBrush( dc )) |
| TSXFillPolygon( display, dc->u.x.drawable, dc->u.x.gc, |
| points, count+1, Complex, CoordModeOrigin); |
| |
| if (DC_SetupGCForPen ( dc )) |
| TSXDrawLines( display, dc->u.x.drawable, dc->u.x.gc, |
| points, count+1, CoordModeOrigin ); |
| |
| free( points ); |
| return TRUE; |
| } |
| |
| |
| /********************************************************************** |
| * X11DRV_PolyPolygon |
| */ |
| BOOL32 |
| X11DRV_PolyPolygon( DC *dc, LPPOINT32 pt, LPINT32 counts, UINT32 polygons) |
| { |
| HRGN32 hrgn; |
| |
| /* FIXME: The points should be converted to device coords before */ |
| /* creating the region. But as CreatePolyPolygonRgn is not */ |
| /* really correct either, it doesn't matter much... */ |
| /* At least the outline will be correct :-) */ |
| hrgn = CreatePolyPolygonRgn32( pt, counts, polygons, dc->w.polyFillMode ); |
| X11DRV_PaintRgn( dc, hrgn ); |
| DeleteObject32( hrgn ); |
| |
| /* Draw the outline of the polygons */ |
| |
| if (DC_SetupGCForPen ( dc )) |
| { |
| int i, j, max = 0; |
| XPoint *points; |
| |
| for (i = 0; i < polygons; i++) if (counts[i] > max) max = counts[i]; |
| points = (XPoint *) xmalloc( sizeof(XPoint) * (max+1) ); |
| |
| for (i = 0; i < polygons; i++) |
| { |
| for (j = 0; j < counts[i]; j++) |
| { |
| points[j].x = dc->w.DCOrgX + XLPTODP( dc, pt->x ); |
| points[j].y = dc->w.DCOrgY + YLPTODP( dc, pt->y ); |
| pt++; |
| } |
| points[j] = points[0]; |
| TSXDrawLines( display, dc->u.x.drawable, dc->u.x.gc, |
| points, j + 1, CoordModeOrigin ); |
| } |
| free( points ); |
| } |
| return TRUE; |
| } |
| |
| |
| /********************************************************************** |
| * X11DRV_PolyPolyline |
| */ |
| BOOL32 |
| X11DRV_PolyPolyline( DC *dc, LPPOINT32 pt, LPINT32 counts, UINT32 polylines ) |
| { |
| if (DC_SetupGCForPen ( dc )) |
| { |
| int i, j, max = 0; |
| XPoint *points; |
| |
| for (i = 0; i < polylines; i++) if (counts[i] > max) max = counts[i]; |
| points = (XPoint *) xmalloc( sizeof(XPoint) * (max+1) ); |
| |
| for (i = 0; i < polylines; i++) |
| { |
| for (j = 0; j < counts[i]; j++) |
| { |
| points[j].x = dc->w.DCOrgX + XLPTODP( dc, pt->x ); |
| points[j].y = dc->w.DCOrgY + YLPTODP( dc, pt->y ); |
| pt++; |
| } |
| points[j] = points[0]; |
| TSXDrawLines( display, dc->u.x.drawable, dc->u.x.gc, |
| points, j + 1, CoordModeOrigin ); |
| } |
| free( points ); |
| } |
| return TRUE; |
| } |
| |
| |
| /********************************************************************** |
| * X11DRV_InternalFloodFill |
| * |
| * Internal helper function for flood fill. |
| * (xorg,yorg) is the origin of the X image relative to the drawable. |
| * (x,y) is relative to the origin of the X image. |
| */ |
| static void X11DRV_InternalFloodFill(XImage *image, DC *dc, |
| int x, int y, |
| int xOrg, int yOrg, |
| Pixel pixel, WORD fillType ) |
| { |
| int left, right; |
| |
| #define TO_FLOOD(x,y) ((fillType == FLOODFILLBORDER) ? \ |
| (XGetPixel(image,x,y) != pixel) : \ |
| (XGetPixel(image,x,y) == pixel)) |
| |
| if (!TO_FLOOD(x,y)) return; |
| |
| /* Find left and right boundaries */ |
| |
| left = right = x; |
| while ((left > 0) && TO_FLOOD( left-1, y )) left--; |
| while ((right < image->width) && TO_FLOOD( right, y )) right++; |
| XFillRectangle( display, dc->u.x.drawable, dc->u.x.gc, |
| xOrg + left, yOrg + y, right-left, 1 ); |
| |
| /* Set the pixels of this line so we don't fill it again */ |
| |
| for (x = left; x < right; x++) |
| { |
| if (fillType == FLOODFILLBORDER) XPutPixel( image, x, y, pixel ); |
| else XPutPixel( image, x, y, ~pixel ); |
| } |
| |
| /* Fill the line above */ |
| |
| if (--y >= 0) |
| { |
| x = left; |
| while (x < right) |
| { |
| while ((x < right) && !TO_FLOOD(x,y)) x++; |
| if (x >= right) break; |
| while ((x < right) && TO_FLOOD(x,y)) x++; |
| X11DRV_InternalFloodFill(image, dc, x-1, y, |
| xOrg, yOrg, pixel, fillType ); |
| } |
| } |
| |
| /* Fill the line below */ |
| |
| if ((y += 2) < image->height) |
| { |
| x = left; |
| while (x < right) |
| { |
| while ((x < right) && !TO_FLOOD(x,y)) x++; |
| if (x >= right) break; |
| while ((x < right) && TO_FLOOD(x,y)) x++; |
| X11DRV_InternalFloodFill(image, dc, x-1, y, |
| xOrg, yOrg, pixel, fillType ); |
| } |
| } |
| #undef TO_FLOOD |
| } |
| |
| |
| /********************************************************************** |
| * X11DRV_DoFloodFill |
| * |
| * Main flood-fill routine. |
| * |
| * The Xlib critical section must be entered before calling this function. |
| */ |
| |
| struct FloodFill_params |
| { |
| DC *dc; |
| INT32 x; |
| INT32 y; |
| COLORREF color; |
| UINT32 fillType; |
| }; |
| |
| static BOOL32 X11DRV_DoFloodFill( const struct FloodFill_params *params ) |
| { |
| XImage *image; |
| RECT32 rect; |
| DC *dc = params->dc; |
| |
| if (GetRgnBox32( dc->w.hGCClipRgn, &rect ) == ERROR) return FALSE; |
| |
| if (!(image = XGetImage( display, dc->u.x.drawable, |
| dc->w.DCOrgX + rect.left, |
| dc->w.DCOrgY + rect.top, |
| rect.right - rect.left, |
| rect.bottom - rect.top, |
| AllPlanes, ZPixmap ))) return FALSE; |
| |
| if (DC_SetupGCForBrush( dc )) |
| { |
| /* ROP mode is always GXcopy for flood-fill */ |
| XSetFunction( display, dc->u.x.gc, GXcopy ); |
| X11DRV_InternalFloodFill(image, dc, |
| XLPTODP(dc,params->x) - rect.left, |
| YLPTODP(dc,params->y) - rect.top, |
| dc->w.DCOrgX + rect.left, |
| dc->w.DCOrgY + rect.top, |
| COLOR_ToPhysical( dc, params->color ), |
| params->fillType ); |
| } |
| |
| XDestroyImage( image ); |
| return TRUE; |
| } |
| |
| |
| /********************************************************************** |
| * X11DRV_ExtFloodFill |
| */ |
| BOOL32 |
| X11DRV_ExtFloodFill( DC *dc, INT32 x, INT32 y, COLORREF color, |
| UINT32 fillType ) |
| { |
| BOOL32 result; |
| struct FloodFill_params params = { dc, x, y, color, fillType }; |
| |
| TRACE(graphics, "X11DRV_ExtFloodFill %d,%d %06lx %d\n", |
| x, y, color, fillType ); |
| |
| if (!PtVisible32( dc->hSelf, x, y )) return FALSE; |
| EnterCriticalSection( &X11DRV_CritSection ); |
| result = CALL_LARGE_STACK( X11DRV_DoFloodFill, ¶ms ); |
| LeaveCriticalSection( &X11DRV_CritSection ); |
| return result; |
| } |