Exemplo n.º 1
0
static ofTTFCharacter makeContoursForCharacter(FT_Face &face){

		//int num			= face->glyph->outline.n_points;
		int nContours	= face->glyph->outline.n_contours;
		int startPos	= 0;

		char * tags		= face->glyph->outline.tags;
		FT_Vector * vec = face->glyph->outline.points;

		ofTTFCharacter charOutlines;
		charOutlines.setUseShapeColor(false);

		for(int k = 0; k < nContours; k++){
			if( k > 0 ){
				startPos = face->glyph->outline.contours[k-1]+1;
			}
			int endPos = face->glyph->outline.contours[k]+1;

			if(printVectorInfo){
				ofLogNotice("ofTrueTypeFont") << "--NEW CONTOUR";
			}

			//vector <ofPoint> testOutline;
			ofPoint lastPoint;

			for(int j = startPos; j < endPos; j++){

				if( FT_CURVE_TAG(tags[j]) == FT_CURVE_TAG_ON ){
					lastPoint.set((float)vec[j].x, (float)-vec[j].y, 0);
					if(printVectorInfo){
						ofLogNotice("ofTrueTypeFont") << "flag[" << j << "] is set to 1 - regular point - " << lastPoint.x <<  lastPoint.y;
					}
					charOutlines.lineTo(lastPoint/64);

				}else{
					if(printVectorInfo){
						ofLogNotice("ofTrueTypeFont") << "flag[" << j << "] is set to 0 - control point";
					}

					if( FT_CURVE_TAG(tags[j]) == FT_CURVE_TAG_CUBIC ){
						if(printVectorInfo){
							ofLogNotice("ofTrueTypeFont") << "- bit 2 is set to 2 - CUBIC";
						}

						int prevPoint = j-1;
						if( j == 0){
							prevPoint = endPos-1;
						}

						int nextIndex = j+1;
						if( nextIndex >= endPos){
							nextIndex = startPos;
						}

						ofPoint nextPoint( (float)vec[nextIndex].x,  -(float)vec[nextIndex].y );

						//we need two control points to draw a cubic bezier
						bool lastPointCubic =  ( FT_CURVE_TAG(tags[prevPoint]) != FT_CURVE_TAG_ON ) && ( FT_CURVE_TAG(tags[prevPoint]) == FT_CURVE_TAG_CUBIC);

						if( lastPointCubic ){
							ofPoint controlPoint1((float)vec[prevPoint].x,	(float)-vec[prevPoint].y);
							ofPoint controlPoint2((float)vec[j].x, (float)-vec[j].y);
							ofPoint nextPoint((float) vec[nextIndex].x,	-(float) vec[nextIndex].y);

							//cubic_bezier(testOutline, lastPoint.x, lastPoint.y, controlPoint1.x, controlPoint1.y, controlPoint2.x, controlPoint2.y, nextPoint.x, nextPoint.y, 8);
							charOutlines.bezierTo(controlPoint1.x/64, controlPoint1.y/64, controlPoint2.x/64, controlPoint2.y/64, nextPoint.x/64, nextPoint.y/64);
						}

					}else{

						ofPoint conicPoint( (float)vec[j].x,  -(float)vec[j].y );

						if(printVectorInfo){
							ofLogNotice("ofTrueTypeFont") << "- bit 2 is set to 0 - conic- ";
							ofLogNotice("ofTrueTypeFont") << "--- conicPoint point is " << conicPoint.x << conicPoint.y;
						}

						//If the first point is connic and the last point is connic then we need to create a virutal point which acts as a wrap around
						if( j == startPos ){
							bool prevIsConnic = (  FT_CURVE_TAG( tags[endPos-1] ) != FT_CURVE_TAG_ON ) && ( FT_CURVE_TAG( tags[endPos-1]) != FT_CURVE_TAG_CUBIC );

							if( prevIsConnic ){
								ofPoint lastConnic((float)vec[endPos - 1].x, (float)-vec[endPos - 1].y);
								lastPoint = (conicPoint + lastConnic) / 2;

								if(printVectorInfo){
									ofLogNotice("ofTrueTypeFont") << "NEED TO MIX WITH LAST";
									ofLogNotice("ofTrueTypeFont") << "last is " << lastPoint.x << " " << lastPoint.y;
								}
							}
						}

						//bool doubleConic = false;

						int nextIndex = j+1;
						if( nextIndex >= endPos){
							nextIndex = startPos;
						}

						ofPoint nextPoint( (float)vec[nextIndex].x,  -(float)vec[nextIndex].y );

						if(printVectorInfo){
							ofLogNotice("ofTrueTypeFont") << "--- last point is " << lastPoint.x << " " <<  lastPoint.y;
						}

						bool nextIsConnic = (  FT_CURVE_TAG( tags[nextIndex] ) != FT_CURVE_TAG_ON ) && ( FT_CURVE_TAG( tags[nextIndex]) != FT_CURVE_TAG_CUBIC );

						//create a 'virtual on point' if we have two connic points
						if( nextIsConnic ){
							nextPoint = (conicPoint + nextPoint) / 2;
							if(printVectorInfo){
								ofLogNotice("ofTrueTypeFont") << "|_______ double connic!";
							}
						}
						if(printVectorInfo){
							ofLogNotice("ofTrueTypeFont") << "--- next point is " << nextPoint.x << " " << nextPoint.y;
						}

						//quad_bezier(testOutline, lastPoint.x, lastPoint.y, conicPoint.x, conicPoint.y, nextPoint.x, nextPoint.y, 8);
						charOutlines.quadBezierTo(lastPoint.x/64, lastPoint.y/64, conicPoint.x/64, conicPoint.y/64, nextPoint.x/64, nextPoint.y/64);

						if( nextIsConnic ){
							lastPoint = nextPoint;
						}
					}
				}

			//end for
			}
			charOutlines.close();
		}

	return charOutlines;
}
Exemplo n.º 2
0
static ofTTFCharacter makeContoursForCharacter(FT_Face &face){

		//int num			= face->glyph->outline.n_points;
		int nContours	= face->glyph->outline.n_contours;
		int startPos	= 0;

		char * tags		= face->glyph->outline.tags;
		FT_Vector * vec = face->glyph->outline.points;

		ofTTFCharacter charOutlines;

		for(int k = 0; k < nContours; k++){
			if( k > 0 ){
				startPos = face->glyph->outline.contours[k-1]+1;
			}
			int endPos = face->glyph->outline.contours[k]+1;

			if( printVectorInfo )printf("--NEW CONTOUR\n\n");

			vector <ofPoint> testOutline;
			ofPoint lastPoint;

			for(int j = startPos; j < endPos; j++){

				if( FT_CURVE_TAG(tags[j]) == FT_CURVE_TAG_ON ){
					lastPoint.set((float)vec[j].x, (float)-vec[j].y, 0);
					if( printVectorInfo )printf("flag[%i] is set to 1 - regular point - %f %f \n", j, lastPoint.x, lastPoint.y);
					testOutline.push_back(lastPoint);

				}else{
					if( printVectorInfo )printf("flag[%i] is set to 0 - control point \n", j);

					if( FT_CURVE_TAG(tags[j]) == FT_CURVE_TAG_CUBIC ){
						if( printVectorInfo )printf("- bit 2 is set to 2 - CUBIC\n");

						int prevPoint = j-1;
						if( j == 0){
							prevPoint = endPos-1;
						}

						int nextIndex = j+1;
						if( nextIndex >= endPos){
							nextIndex = startPos;
						}

						ofPoint nextPoint( (float)vec[nextIndex].x,  -(float)vec[nextIndex].y );

						//we need two control points to draw a cubic bezier
						bool lastPointCubic =  ( FT_CURVE_TAG(tags[prevPoint]) != FT_CURVE_TAG_ON ) && ( FT_CURVE_TAG(tags[prevPoint]) == FT_CURVE_TAG_CUBIC);

						if( lastPointCubic ){
							ofPoint controlPoint1((float)vec[prevPoint].x,	(float)-vec[prevPoint].y);
							ofPoint controlPoint2((float)vec[j].x, (float)-vec[j].y);
							ofPoint nextPoint((float) vec[nextIndex].x,	-(float) vec[nextIndex].y);

							cubic_bezier(testOutline, lastPoint.x, lastPoint.y, controlPoint1.x, controlPoint1.y, controlPoint2.x, controlPoint2.y, nextPoint.x, nextPoint.y, 8);
						}

					}else{

						ofPoint conicPoint( (float)vec[j].x,  -(float)vec[j].y );

						if( printVectorInfo )printf("- bit 2 is set to 0 - conic- \n");
						if( printVectorInfo )printf("--- conicPoint point is %f %f \n", conicPoint.x, conicPoint.y);

						//If the first point is connic and the last point is connic then we need to create a virutal point which acts as a wrap around
						if( j == startPos ){
							bool prevIsConnic = (  FT_CURVE_TAG( tags[endPos-1] ) != FT_CURVE_TAG_ON ) && ( FT_CURVE_TAG( tags[endPos-1]) != FT_CURVE_TAG_CUBIC );

							if( prevIsConnic ){
								ofPoint lastConnic((float)vec[endPos - 1].x, (float)-vec[endPos - 1].y);
								lastPoint = (conicPoint + lastConnic) / 2;

								if( printVectorInfo )	printf("NEED TO MIX WITH LAST\n");
								if( printVectorInfo )printf("last is %f %f \n", lastPoint.x, lastPoint.y);
							}
						}

						//bool doubleConic = false;

						int nextIndex = j+1;
						if( nextIndex >= endPos){
							nextIndex = startPos;
						}

						ofPoint nextPoint( (float)vec[nextIndex].x,  -(float)vec[nextIndex].y );

						if( printVectorInfo )printf("--- last point is %f %f \n", lastPoint.x, lastPoint.y);

						bool nextIsConnic = (  FT_CURVE_TAG( tags[nextIndex] ) != FT_CURVE_TAG_ON ) && ( FT_CURVE_TAG( tags[nextIndex]) != FT_CURVE_TAG_CUBIC );

						//create a 'virtual on point' if we have two connic points
						if( nextIsConnic ){
							nextPoint = (conicPoint + nextPoint) / 2;
							if( printVectorInfo )printf("|_______ double connic!\n");
						}
						if( printVectorInfo )printf("--- next point is %f %f \n", nextPoint.x, nextPoint.y);

						quad_bezier(testOutline, lastPoint.x, lastPoint.y, conicPoint.x, conicPoint.y, nextPoint.x, nextPoint.y, 8);

						if( nextIsConnic ){
							lastPoint = nextPoint;
						}
					}
				}

			//end for
			}

			for(int g =0; g < (int)testOutline.size(); g++){
				testOutline[g] /= 64.0f;
			}

			charOutlines.contours.push_back(ofTTFContour());

			if( testOutline.size() ){
				charOutlines.contours.back().pts = ofSimplifyContour(testOutline, (float)TTF_SHAPE_SIMPLIFICATION_AMNT);
			}else{
				charOutlines.contours.back().pts = testOutline;
			}
		}

	return charOutlines;
}