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pixmapfx/kpPixmapFX_DrawShapes.cpp
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| 44 | #include "imagelib/kpColor.h" | 44 | #include "imagelib/kpColor.h" | ||
| 45 | #include "kpDefs.h" | 45 | #include "kpDefs.h" | ||
| 46 | 46 | | |||
| 47 | //--------------------------------------------------------------------- | 47 | //--------------------------------------------------------------------- | ||
| 48 | 48 | | |||
| 49 | // Returns whether there is only 1 distinct point in <points>. | 49 | // Returns whether there is only 1 distinct point in <points>. | ||
| 50 | bool kpPixmapFX::Only1PixelInPointArray (const QPolygon &points) | 50 | bool kpPixmapFX::Only1PixelInPointArray (const QPolygon &points) | ||
| 51 | { | 51 | { | ||
| 52 | if (points.count () == 0) | 52 | if (points.count () == 0) { | ||
| 53 | return false; | 53 | return false; | ||
| 54 | } | ||||
| 54 | 55 | | |||
| 55 | for (int i = 1; i < static_cast<int> (points.count ()); i++) | 56 | for (int i = 1; i < static_cast<int> (points.count ()); i++) | ||
| 56 | { | 57 | { | ||
| 57 | if (points [i] != points [0]) | 58 | if (points [i] != points [0]) { | ||
| 58 | return false; | 59 | return false; | ||
| 59 | } | 60 | } | ||
| 61 | } | ||||
| 60 | 62 | | |||
| 61 | return true; | 63 | return true; | ||
| 62 | } | 64 | } | ||
| 63 | 65 | | |||
| 64 | //--------------------------------------------------------------------- | 66 | //--------------------------------------------------------------------- | ||
| 65 | 67 | | |||
| 66 | // Warp the given <width> from 1 to 0. | 68 | // Warp the given <width> from 1 to 0. | ||
| 67 | // This is not always done (specifically if <drawingEllipse>) because | 69 | // This is not always done (specifically if <drawingEllipse>) because | ||
| ▲ Show 20 Lines • Show All 115 Lines • ▼ Show 20 Line(s) | 180 | void kpPixmapFX::drawPolygon (QImage *image, | |||
| 183 | const kpColor &fStippleColor) | 185 | const kpColor &fStippleColor) | ||
| 184 | { | 186 | { | ||
| 185 | QPainter p(image); | 187 | QPainter p(image); | ||
| 186 | 188 | | |||
| 187 | ::QPainterSetPenWithStipple (&p, | 189 | ::QPainterSetPenWithStipple (&p, | ||
| 188 | fcolor, penWidth, | 190 | fcolor, penWidth, | ||
| 189 | fStippleColor); | 191 | fStippleColor); | ||
| 190 | 192 | | |||
| 191 | if (bcolor.isValid ()) | 193 | if (bcolor.isValid ()) { | ||
| 192 | p.setBrush (QBrush (bcolor.toQColor())); | 194 | p.setBrush (QBrush (bcolor.toQColor())); | ||
| 195 | } | ||||
| 193 | // HACK: seems to be needed if set_Pen_(Qt::color0) else fills with Qt::color0. | 196 | // HACK: seems to be needed if set_Pen_(Qt::color0) else fills with Qt::color0. | ||
| 194 | else | 197 | else { | ||
| 195 | p.setBrush (Qt::NoBrush); | 198 | p.setBrush (Qt::NoBrush); | ||
| 199 | } | ||||
| 196 | 200 | | |||
| 197 | // Qt bug: single point doesn't show up depending on penWidth. | 201 | // Qt bug: single point doesn't show up depending on penWidth. | ||
| 198 | if (Only1PixelInPointArray (points)) | 202 | if (Only1PixelInPointArray (points)) | ||
| 199 | { | 203 | { | ||
| 200 | qCDebug(kpLogPixmapfx) << "\tinvoking single point hack"; | 204 | qCDebug(kpLogPixmapfx) << "\tinvoking single point hack"; | ||
| 201 | p.drawPoint(points [0]); | 205 | p.drawPoint(points [0]); | ||
| 202 | return; | 206 | return; | ||
| 203 | } | 207 | } | ||
| 204 | 208 | | |||
| 205 | // TODO: why aren't the ends rounded? | 209 | // TODO: why aren't the ends rounded? | ||
| 206 | p.drawPolygon(points, Qt::OddEvenFill); | 210 | p.drawPolygon(points, Qt::OddEvenFill); | ||
| 207 | 211 | | |||
| 208 | if ( isFinal ) | 212 | if ( isFinal ) { | ||
| 209 | return; | 213 | return; | ||
| 214 | } | ||||
| 210 | 215 | | |||
| 211 | if ( points.count() <= 2 ) | 216 | if ( points.count() <= 2 ) { | ||
| 212 | return; | 217 | return; | ||
| 218 | } | ||||
| 213 | 219 | | |||
| 214 | p.setCompositionMode(QPainter::RasterOp_SourceXorDestination); | 220 | p.setCompositionMode(QPainter::RasterOp_SourceXorDestination); | ||
| 215 | p.setPen(QPen(Qt::white)); | 221 | p.setPen(QPen(Qt::white)); | ||
| 216 | p.drawLine(points[0], points[points.count() - 1]); | 222 | p.drawLine(points[0], points[points.count() - 1]); | ||
| 217 | } | 223 | } | ||
| 218 | 224 | | |||
| 219 | //--------------------------------------------------------------------- | 225 | //--------------------------------------------------------------------- | ||
| 220 | // public static | 226 | // public static | ||
| Show All 17 Lines | 240 | { | |||
| 238 | 244 | | |||
| 239 | for (int dy = 0; dy < height; dy += StippleSize) | 245 | for (int dy = 0; dy < height; dy += StippleSize) | ||
| 240 | { | 246 | { | ||
| 241 | for (int dx = 0; dx < width; dx += StippleSize) | 247 | for (int dx = 0; dx < width; dx += StippleSize) | ||
| 242 | { | 248 | { | ||
| 243 | const bool parity = ((dy + dx) / StippleSize) % 2; | 249 | const bool parity = ((dy + dx) / StippleSize) % 2; | ||
| 244 | 250 | | |||
| 245 | kpColor useColor; | 251 | kpColor useColor; | ||
| 246 | if (!parity) | 252 | if (!parity) { | ||
| 247 | useColor = color; | 253 | useColor = color; | ||
| 248 | else | 254 | } | ||
| 255 | else { | ||||
| 249 | useColor = stippleColor; | 256 | useColor = stippleColor; | ||
| 257 | } | ||||
| 250 | 258 | | |||
| 251 | painter.fillRect (x + dx, y + dy, StippleSize, StippleSize, useColor.toQColor()); | 259 | painter.fillRect (x + dx, y + dy, StippleSize, StippleSize, useColor.toQColor()); | ||
| 252 | } | 260 | } | ||
| 253 | } | 261 | } | ||
| 254 | 262 | | |||
| 255 | } | 263 | } | ||
| 256 | } | 264 | } | ||
| 257 | 265 | | |||
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