//------------------------------------------------------------------------------ // Copyright (c) 2001-2003, Haiku, Inc. // // 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. // // File Name: Clipper.cpp // Author: Gabe Yoder // Description: A wrapper which translates drawing commands // into appropriately clipped drawing commands. // //------------------------------------------------------------------------------ #include "Clipper.h" #include "LayerData.h" Clipper::Clipper(DisplayDriver* driver) { fDriver = driver; } Clipper::~Clipper() { } void Clipper::DrawBitmap(BRegion* clip_reg, ServerBitmap *bmp, BRect src, BRect dest, LayerData *d) { fDriver->DrawBitmap(bmp,src,dest,d); } void Clipper::DrawString(BRegion* clip_reg, const char *string, int32 length, BPoint pt, LayerData *d, escapement_delta *edelta) { fDriver->DrawString(string,length,pt,d,edelta); } void Clipper::FillArc(const BRect r, float angle, float span, RGBColor& color, BRegion* clip_reg) { fDriver->FillArc(r,angle,span,color); } void Clipper::FillArc(const BRect r, float angle, float span, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { fDriver->FillArc(r,angle,span,pattern,high_color,low_color); } void Clipper::FillBezier(BPoint *pts, RGBColor& color, BRegion* clip_reg) { fDriver->FillBezier(pts,color); } void Clipper::FillBezier(BPoint *pts, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { fDriver->FillBezier(pts,pattern,high_color,low_color); } void Clipper::FillEllipse(BRect r, RGBColor& color, BRegion* clip_reg) { fDriver->FillEllipse(r,color); } void Clipper::FillEllipse(BRect r, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { fDriver->FillEllipse(r,pattern,high_color,low_color); } void Clipper::FillPolygon(BPoint *ptlist, int32 numpts, RGBColor& color, BRegion* clip_reg) { fDriver->FillPolygon(ptlist,numpts,color); } void Clipper::FillPolygon(BPoint *ptlist, int32 numpts, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { fDriver->FillPolygon(ptlist,numpts,pattern,high_color,low_color); } void Clipper::FillRect(const BRect r, RGBColor& color, BRegion* clip_reg) { if ( clip_reg ) { BRegion reg; reg.Set(r); reg.IntersectWith(clip_reg); fDriver->FillRegion(reg,color); } else fDriver->FillRect(r,color); } void Clipper::FillRect(const BRect r, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { if ( clip_reg ) { BRegion reg; reg.Set(r); reg.IntersectWith(clip_reg); fDriver->FillRegion(reg,pattern,high_color,low_color); } else fDriver->FillRect(r,pattern,high_color,low_color); } void Clipper::FillRegion(BRegion& r, RGBColor& color, BRegion* clip_reg) { if ( clip_reg ) { BRegion reg; reg = r; reg.IntersectWith(clip_reg); fDriver->FillRegion(reg,color); } else fDriver->FillRegion(r,color); } void Clipper::FillRegion(BRegion& r, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { if ( clip_reg ) { BRegion reg; reg = r; reg.IntersectWith(clip_reg); fDriver->FillRegion(reg,pattern,high_color,low_color); } else fDriver->FillRegion(r,pattern,high_color,low_color); } void Clipper::FillRoundRect(BRect r, float xrad, float yrad, RGBColor& color, BRegion* clip_reg) { if ( !clip_reg ) fDriver->FillRoundRect(r,xrad,yrad,color); else { BRegion reg(r); BRect corner_rect(0,0,xrad,yrad); BRect arc_rect(0,0,2*xrad,2*yrad); corner_rect.OffsetTo(r.left,r.top); reg.Exclude(corner_rect); corner_rect.OffsetTo(r.right-xrad,r.top); reg.Exclude(corner_rect); corner_rect.OffsetTo(r.left,r.bottom-yrad); reg.Exclude(corner_rect); corner_rect.OffsetTo(r.right-xrad,r.bottom-yrad); reg.Exclude(corner_rect); FillRegion(reg,color,clip_reg); arc_rect.OffsetTo(r.left,r.top); FillArc(arc_rect,90,90,color,clip_reg); arc_rect.OffsetTo(r.left,r.bottom-2*yrad); FillArc(arc_rect,180,90,color,clip_reg); arc_rect.OffsetTo(r.right-2*xrad,r.bottom-2*yrad); FillArc(arc_rect,270,90,color,clip_reg); arc_rect.OffsetTo(r.right-2*xrad,r.top); FillArc(arc_rect,0,90,color,clip_reg); } } void Clipper::FillRoundRect(BRect r, float xrad, float yrad, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { if ( !clip_reg ) fDriver->FillRoundRect(r,xrad,yrad,pattern,high_color,low_color); else { BRegion reg(r); BRect corner_rect(0,0,xrad,yrad); BRect arc_rect(0,0,2*xrad,2*yrad); corner_rect.OffsetTo(r.left,r.top); reg.Exclude(corner_rect); corner_rect.OffsetTo(r.right-xrad,r.top); reg.Exclude(corner_rect); corner_rect.OffsetTo(r.left,r.bottom-yrad); reg.Exclude(corner_rect); corner_rect.OffsetTo(r.right-xrad,r.bottom-yrad); reg.Exclude(corner_rect); FillRegion(reg,pattern,high_color,low_color,clip_reg); arc_rect.OffsetTo(r.left,r.top); FillArc(arc_rect,90,90,pattern,high_color,low_color,clip_reg); arc_rect.OffsetTo(r.left,r.bottom-2*yrad); FillArc(arc_rect,180,90,pattern,high_color,low_color,clip_reg); arc_rect.OffsetTo(r.right-2*xrad,r.bottom-2*yrad); FillArc(arc_rect,270,90,pattern,high_color,low_color,clip_reg); arc_rect.OffsetTo(r.right-2*xrad,r.top); FillArc(arc_rect,0,90,pattern,high_color,low_color,clip_reg); } } void Clipper::FillTriangle(BPoint *pts, RGBColor& color, BRegion* clip_reg) { fDriver->FillTriangle(pts,color); } void Clipper::FillTriangle(BPoint *pts, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { fDriver->FillTriangle(pts,pattern,high_color,low_color); } void Clipper::StrokeArc(BRect r, float angle, float span, float pensize, RGBColor& color, BRegion* clip_reg) { fDriver->StrokeArc(r,angle,span,pensize,color); } void Clipper::StrokeArc(BRect r, float angle, float span, float pensize, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { fDriver->StrokeArc(r,angle,span,pensize,pattern,high_color,low_color); } void Clipper::StrokeBezier(BPoint *pts, float pensize, RGBColor& color, BRegion* clip_reg) { fDriver->StrokeBezier(pts,pensize,color); } void Clipper::StrokeBezier(BPoint *pts, float pensize, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { fDriver->StrokeBezier(pts,pensize,pattern,high_color,low_color); } void Clipper::StrokeEllipse(BRect r, float pensize, RGBColor& color, BRegion* clip_reg) { fDriver->StrokeEllipse(r,pensize,color); } void Clipper::StrokeEllipse(BRect r, float pensize, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { fDriver->StrokeEllipse(r,pensize,pattern,high_color,low_color); } void Clipper::StrokeLine(BPoint start, BPoint end, float pensize, RGBColor& color, BRegion* clip_reg) { if ( clip_reg ) { int i; BRect currentRect; LineCalc line(start,end); BRect lineBounds(line.MinX(),line.MinY(),line.MaxX(),line.MaxY()); for (i=0; iCountRects(); i++) { currentRect = clip_reg->RectAt(i); if ( currentRect.Intersects(lineBounds) ) { if ( currentRect.Contains(start) && currentRect.Contains(end) ) { fDriver->StrokeLine(start,end,pensize,color); return; } if ( line.ClipToRect(currentRect) ) { fDriver->StrokeLine(line.GetStart(),line.GetEnd(),pensize,color); line.SetPoints(start,end); } } } } else fDriver->StrokeLine(start,end,pensize,color); } void Clipper::StrokeLine(BPoint start, BPoint end, float pensize, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { if ( clip_reg ) { int i; BRect currentRect; LineCalc line(start,end); BRect lineBounds(line.MinX(),line.MinY(),line.MaxX(),line.MaxY()); for (i=0; iCountRects(); i++) { currentRect = clip_reg->RectAt(i); if ( currentRect.Intersects(lineBounds) ) { if ( currentRect.Contains(start) && currentRect.Contains(end) ) { fDriver->StrokeLine(start,end,pensize,pattern,high_color,low_color); return; } if ( line.ClipToRect(currentRect) ) { fDriver->StrokeLine(line.GetStart(),line.GetEnd(),pensize,pattern,high_color,low_color); line.SetPoints(start,end); } } } } else fDriver->StrokeLine(start,end,pensize,pattern,high_color,low_color); } void Clipper::StrokePolygon(BPoint *ptlist, int32 numpts, float pensize, RGBColor& color, bool is_closed, BRegion* clip_reg) { fDriver->StrokePolygon(ptlist,numpts,pensize,color,is_closed); } void Clipper::StrokePolygon(BPoint *ptlist, int32 numpts, float pensize, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, bool is_closed, BRegion* clip_reg) { fDriver->StrokePolygon(ptlist,numpts,pensize,pattern,high_color,low_color,is_closed); } void Clipper::StrokeRect(BRect r, float pensize, RGBColor& color, BRegion* clip_reg) { if ( clip_reg ) { StrokeLine(r.LeftTop(), r.RightTop(), pensize, color, clip_reg); StrokeLine(r.LeftTop(), r.LeftBottom(), pensize, color, clip_reg); StrokeLine(r.RightTop(), r.RightBottom(), pensize, color, clip_reg); StrokeLine(r.LeftBottom(), r.RightBottom(), pensize, color, clip_reg); } else fDriver->StrokeRect(r,pensize,color); } void Clipper::StrokeRect(BRect r, float pensize, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { if ( clip_reg ) { StrokeLine(r.LeftTop(), r.RightTop(), pensize, pattern, high_color, low_color, clip_reg); StrokeLine(r.LeftTop(), r.LeftBottom(), pensize, pattern, high_color, low_color, clip_reg); StrokeLine(r.RightTop(), r.RightBottom(), pensize, pattern, high_color, low_color, clip_reg); StrokeLine(r.LeftBottom(), r.RightBottom(), pensize, pattern, high_color, low_color, clip_reg); } else fDriver->StrokeRect(r,pensize,pattern,high_color,low_color); } void Clipper::StrokeRegion(BRegion& r, float pensize, RGBColor& color, BRegion* clip_reg) { fDriver->StrokeRegion(r,pensize,color); } void Clipper::StrokeRegion(BRegion& r, float pensize, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { fDriver->StrokeRegion(r,pensize,pattern,high_color,low_color); } void Clipper::StrokeRoundRect(BRect r, float xrad, float yrad, float pensize, RGBColor& color, BRegion* clip_reg) { fDriver->StrokeRoundRect(r,xrad,yrad,pensize,color); } void Clipper::StrokeRoundRect(BRect r, float xrad, float yrad, float pensize, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { fDriver->StrokeRoundRect(r,xrad,yrad,pensize,pattern,high_color,low_color); } void Clipper::StrokeTriangle(BPoint *pts, float pensize, RGBColor& color, BRegion* clip_reg) { fDriver->StrokeTriangle(pts,pensize,color); } void Clipper::StrokeTriangle(BPoint *pts, float pensize, const Pattern& pattern, RGBColor& high_color, RGBColor& low_color, BRegion* clip_reg) { fDriver->StrokeTriangle(pts,pensize,pattern,high_color,low_color); } void Clipper::StrokeLineArray(BPoint *pts, int32 numlines, float pensize, RGBColor *colors, BRegion* clip_reg) { fDriver->StrokeLineArray(pts,numlines,pensize,colors); }