1 /*
2 For general Scribus (>=1.3.2) copyright and licensing information please refer
3 to the COPYING file provided with the program. Following this notice may exist
4 a copyright and/or license notice that predates the release of Scribus 1.3.2
5 for which a new license (GPL+exception) is in place.
6 */
7 /***************************************************************************
8 pageitem.cpp - description
9 -------------------
10 begin : Sat Apr 7 2001
11 copyright : (C) 2001 by Franz Schmid
12 email : Franz.Schmid@altmuehlnet.de
13 ***************************************************************************/
14
15 /***************************************************************************
16 * *
17 * This program is free software; you can redistribute it and/or modify *
18 * it under the terms of the GNU General Public License as published by *
19 * the Free Software Foundation; either version 2 of the License, or *
20 * (at your option) any later version. *
21 * *
22 ***************************************************************************/
23
24 #if defined(_MSC_VER) && !defined(_USE_MATH_DEFINES)
25 #define _USE_MATH_DEFINES
26 #endif
27 #include <cmath>
28 #include <cassert>
29
30 #include "scconfig.h"
31
32 #include "commonstrings.h"
33 #include "pageitem.h"
34 #include "pageitem_line.h"
35 #include "prefsmanager.h"
36 #include "scpage.h"
37 #include "scpainter.h"
38 #include "scpaths.h"
39
40 #include "scribusstructs.h"
41 #include "scribusdoc.h"
42 #include "scribusview.h"
43 #include "undomanager.h"
44 #include "undostate.h"
45 #include "util.h"
46 #include "util_math.h"
47
48 using namespace std;
49
PageItem_Line(ScribusDoc * pa,double x,double y,double w,double h,double w2,const QString & fill,const QString & outline)50 PageItem_Line::PageItem_Line(ScribusDoc *pa, double x, double y, double w, double h, double w2, const QString& fill, const QString& outline)
51 : PageItem(pa, PageItem::Line, x, y, w, h, w2, fill, outline)
52 {
53 }
54
DrawObj_Item(ScPainter * p,QRectF)55 void PageItem_Line::DrawObj_Item(ScPainter *p, QRectF /*e*/)
56 {
57 if (m_Doc->RePos)
58 return;
59
60 if (m_Doc->layerOutline(m_layerID))
61 p->drawLine(FPoint(0, 0), FPoint(m_width, 0));
62 else
63 {
64 if (NamedLStyle.isEmpty())
65 {
66 ScPattern *strokePattern = m_Doc->checkedPattern(patternStrokeVal);
67 if (strokePattern)
68 {
69 if (patternStrokePath)
70 {
71 QPainterPath guidePath;
72 guidePath.moveTo(0, 0);
73 guidePath.lineTo(m_width, 0);
74 DrawStrokePattern(p, guidePath);
75 }
76 else
77 {
78 p->setPattern(strokePattern, patternStrokeScaleX, patternStrokeScaleY, patternStrokeOffsetX, patternStrokeOffsetY, patternStrokeRotation, patternStrokeSkewX, patternStrokeSkewY, patternStrokeMirrorX, patternStrokeMirrorY);
79 p->setStrokeMode(ScPainter::Pattern);
80 p->drawLine(FPoint(0, 0), FPoint(m_width, 0));
81 }
82 }
83 else if (GrTypeStroke > 0)
84 {
85 if ((!gradientStrokeVal.isEmpty()) && (!m_Doc->docGradients.contains(gradientStrokeVal)))
86 gradientStrokeVal.clear();
87 if (!(gradientStrokeVal.isEmpty()) && (m_Doc->docGradients.contains(gradientStrokeVal)))
88 stroke_gradient = m_Doc->docGradients[gradientStrokeVal];
89 if (stroke_gradient.stops() < 2) // fall back to solid stroking if there are not enough colorstops in the gradient.
90 {
91 if (lineColor() != CommonStrings::None)
92 {
93 p->setBrush(m_strokeQColor);
94 p->setStrokeMode(ScPainter::Solid);
95 }
96 else
97 {
98 no_stroke = true;
99 p->setStrokeMode(ScPainter::None);
100 }
101 }
102 else
103 {
104 p->setStrokeMode(ScPainter::Gradient);
105 p->stroke_gradient = stroke_gradient;
106 if (GrTypeStroke == Gradient_Linear)
107 p->setGradient(VGradient::linear, FPoint(GrStrokeStartX, GrStrokeStartY), FPoint(GrStrokeEndX, GrStrokeEndY), FPoint(GrStrokeStartX, GrStrokeStartY), GrStrokeScale, GrStrokeSkew);
108 else
109 p->setGradient(VGradient::radial, FPoint(GrStrokeStartX, GrStrokeStartY), FPoint(GrStrokeEndX, GrStrokeEndY), FPoint(GrStrokeFocalX, GrStrokeFocalY), GrStrokeScale, GrStrokeSkew);
110 }
111 p->drawLine(FPoint(0, 0), FPoint(m_width, 0));
112 }
113 else if (lineColor() != CommonStrings::None)
114 {
115 p->setStrokeMode(ScPainter::Solid);
116 p->drawLine(FPoint(0, 0), FPoint(m_width, 0));
117 }
118 else
119 no_stroke = true;
120 }
121 else
122 {
123 p->setStrokeMode(ScPainter::Solid);
124 multiLine ml = m_Doc->docLineStyles[NamedLStyle];
125 QColor tmp;
126 for (int it = ml.size()-1; it > -1; it--)
127 {
128 if (ml[it].Color != CommonStrings::None) // && (ml[it].Width != 0))
129 {
130 SetQColor(&tmp, ml[it].Color, ml[it].Shade);
131 p->setPen(tmp, ml[it].Width, static_cast<Qt::PenStyle>(ml[it].Dash), static_cast<Qt::PenCapStyle>(ml[it].LineEnd), static_cast<Qt::PenJoinStyle>(ml[it].LineJoin));
132 p->drawLine(FPoint(0, 0), FPoint(m_width, 0));
133 }
134 }
135 }
136 }
137 if (m_startArrowIndex != 0)
138 {
139 QTransform arrowTrans;
140 arrowTrans.translate(0, 0);
141 arrowTrans.scale(-1,1);
142 arrowTrans.scale(m_startArrowScale / 100.0, m_startArrowScale / 100.0);
143 drawArrow(p, arrowTrans, m_startArrowIndex);
144 }
145 if (m_endArrowIndex != 0)
146 {
147 QTransform arrowTrans;
148 arrowTrans.translate(m_width, 0);
149 arrowTrans.scale(m_endArrowScale / 100.0, m_endArrowScale / 100.0);
150 drawArrow(p, arrowTrans, m_endArrowIndex);
151 }
152 }
153
applicableActions(QStringList & actionList)154 void PageItem_Line::applicableActions(QStringList & actionList)
155 {
156 actionList << "itemConvertToBezierCurve";
157 }
158
infoDescription() const159 QString PageItem_Line::infoDescription() const
160 {
161 return QString();
162 }
163
startPoint() const164 QPointF PageItem_Line::startPoint() const
165 {
166 return QPointF(m_xPos, m_yPos);
167 }
168
endPoint() const169 QPointF PageItem_Line::endPoint() const
170 {
171 double rot = this->rotation();
172 double x = m_xPos + m_width * cos(rot * M_PI / 180.0);
173 double y = m_yPos + m_width * sin(rot * M_PI / 180.0);
174 return QPointF(x, y);
175 }
176
setLineClip()177 void PageItem_Line::setLineClip()
178 {
179 // Big fat warning : QPolygon::setPoints is a variadic function,
180 // only pass ints as arguments, or expect strange results
181 int ph = static_cast<int>(qMax(1.0, this->visualLineWidth() / 2.0));
182 Clip.setPoints(4, -1, -ph,
183 static_cast<int>(width() + 1.0), -ph,
184 static_cast<int>(width() + 1.0), ph,
185 -1, ph);
186 }
187
getBoundingRect(double * x1,double * y1,double * x2,double * y2) const188 void PageItem_Line::getBoundingRect(double *x1, double *y1, double *x2, double *y2) const
189 {
190 double minx = std::numeric_limits<double>::max();
191 double miny = std::numeric_limits<double>::max();
192 double maxx = -std::numeric_limits<double>::max();
193 double maxy = -std::numeric_limits<double>::max();
194 if (m_rotation != 0)
195 {
196 FPointArray pb;
197 pb.resize(0);
198 pb.addPoint(FPoint(0, - m_lineWidth / 2.0, m_xPos, m_yPos, m_rotation, 1.0, 1.0));
199 pb.addPoint(FPoint(m_width, - m_lineWidth / 2.0, m_xPos, m_yPos, m_rotation, 1.0, 1.0));
200 pb.addPoint(FPoint(m_width, + m_lineWidth / 2.0, m_xPos, m_yPos, m_rotation, 1.0, 1.0));
201 pb.addPoint(FPoint(0, + m_lineWidth / 2.0, m_xPos, m_yPos, m_rotation, 1.0, 1.0));
202 for (uint pc = 0; pc < 4; ++pc)
203 {
204 minx = qMin(minx, pb.point(pc).x());
205 miny = qMin(miny, pb.point(pc).y());
206 maxx = qMax(maxx, pb.point(pc).x());
207 maxy = qMax(maxy, pb.point(pc).y());
208 }
209 *x1 = minx;
210 *y1 = miny;
211 *x2 = maxx;
212 *y2 = maxy;
213 }
214 else
215 {
216 *x1 = m_xPos;
217 *y1 = m_yPos - qMax(1.0, m_lineWidth) / 2.0;
218 *x2 = m_xPos + m_width;
219 *y2 = m_yPos + qMax(1.0, m_lineWidth) / 2.0;
220 }
221
222 QRectF totalRect = QRectF(QPointF(*x1, *y1), QPointF(*x2, *y2));
223 if (m_startArrowIndex != 0)
224 {
225 QRectF arrowRect = getStartArrowBoundingRect();
226 totalRect = totalRect.united(arrowRect);
227 }
228 if (m_endArrowIndex != 0)
229 {
230 QRectF arrowRect = getEndArrowBoundingRect();
231 totalRect = totalRect.united(arrowRect);
232 }
233 totalRect.getCoords(x1, y1, x2, y2);
234 }
235
getOldBoundingRect(double * x1,double * y1,double * x2,double * y2) const236 void PageItem_Line::getOldBoundingRect(double *x1, double *y1, double *x2, double *y2) const
237 {
238 double minx = std::numeric_limits<double>::max();
239 double miny = std::numeric_limits<double>::max();
240 double maxx = -std::numeric_limits<double>::max();
241 double maxy = -std::numeric_limits<double>::max();
242 if (oldRot != 0)
243 {
244 FPointArray pb;
245 pb.resize(0);
246 pb.addPoint(FPoint(0, - m_oldLineWidth / 2.0, oldXpos, oldYpos, oldRot, 1.0, 1.0));
247 pb.addPoint(FPoint(oldWidth, - m_oldLineWidth / 2.0, oldXpos, oldYpos, oldRot, 1.0, 1.0));
248 pb.addPoint(FPoint(oldWidth, + m_oldLineWidth / 2.0, oldXpos, oldYpos, oldRot, 1.0, 1.0));
249 pb.addPoint(FPoint(0, + m_oldLineWidth / 2.0, oldXpos, oldYpos, oldRot, 1.0, 1.0));
250 for (uint pc = 0; pc < 4; ++pc)
251 {
252 minx = qMin(minx, pb.point(pc).x());
253 miny = qMin(miny, pb.point(pc).y());
254 maxx = qMax(maxx, pb.point(pc).x());
255 maxy = qMax(maxy, pb.point(pc).y());
256 }
257 *x1 = minx;
258 *y1 = miny;
259 *x2 = maxx;
260 *y2 = maxy;
261 }
262 else
263 {
264 *x1 = oldXpos;
265 *y1 = oldYpos - qMax(1.0, m_oldLineWidth) / 2.0;
266 *x2 = oldXpos + oldWidth;
267 *y2 = oldYpos + qMax(1.0, m_oldLineWidth) / 2.0;
268 }
269
270 QRectF totalRect = QRectF(QPointF(*x1, *y1), QPointF(*x2, *y2));
271 if (m_startArrowIndex != 0)
272 {
273 QRectF arrowRect = getStartArrowOldBoundingRect();
274 totalRect = totalRect.united(arrowRect);
275 }
276 if (m_endArrowIndex != 0)
277 {
278 QRectF arrowRect = getEndArrowOldBoundingRect();
279 totalRect = totalRect.united(arrowRect);
280 }
281 totalRect.getCoords(x1, y1, x2, y2);
282 }
283
getVisualBoundingRect(double * x1,double * y1,double * x2,double * y2) const284 void PageItem_Line::getVisualBoundingRect(double * x1, double * y1, double * x2, double * y2) const
285 {
286 double minx = std::numeric_limits<double>::max();
287 double miny = std::numeric_limits<double>::max();
288 double maxx = -std::numeric_limits<double>::max();
289 double maxy = -std::numeric_limits<double>::max();
290 double extraSpace = visualLineWidth() / 2.0;
291 if (m_rotation != 0)
292 {
293 FPointArray pb;
294 pb.resize(0);
295 pb.addPoint(FPoint(0.0, -extraSpace, xPos(), yPos(), m_rotation, 1.0, 1.0));
296 pb.addPoint(FPoint(visualWidth(), -extraSpace, xPos(), yPos(), m_rotation, 1.0, 1.0));
297 pb.addPoint(FPoint(visualWidth(), +extraSpace, xPos(), yPos(), m_rotation, 1.0, 1.0));
298 pb.addPoint(FPoint(0.0, +extraSpace, xPos(), yPos(), m_rotation, 1.0, 1.0));
299 for (uint pc = 0; pc < 4; ++pc)
300 {
301 minx = qMin(minx, pb.point(pc).x());
302 miny = qMin(miny, pb.point(pc).y());
303 maxx = qMax(maxx, pb.point(pc).x());
304 maxy = qMax(maxy, pb.point(pc).y());
305 }
306 *x1 = minx;
307 *y1 = miny;
308 *x2 = maxx;
309 *y2 = maxy;
310 }
311 else
312 {
313 *x1 = m_xPos;
314 *y1 = m_yPos - extraSpace;
315 *x2 = m_xPos + visualWidth();
316 *y2 = m_yPos + extraSpace;
317 }
318
319 QRectF totalRect(QPointF(*x1, *y1), QPointF(*x2, *y2));
320 if (m_startArrowIndex != 0)
321 {
322 QRectF arrowRect = getStartArrowBoundingRect();
323 totalRect = totalRect.united(arrowRect);
324 }
325 if (m_endArrowIndex != 0)
326 {
327 QRectF arrowRect = getEndArrowBoundingRect();
328 totalRect = totalRect.united(arrowRect);
329 }
330 totalRect.getCoords(x1, y1, x2, y2);
331 }
332
getStartArrowBoundingRect() const333 QRectF PageItem_Line::getStartArrowBoundingRect() const
334 {
335 QRectF arrowRect;
336 if (m_startArrowIndex != 0)
337 {
338 QTransform arrowTrans;
339 FPointArray arrow = m_Doc->arrowStyles().at(m_startArrowIndex - 1).points.copy();
340 arrowTrans.translate(m_xPos, m_yPos);
341 arrowTrans.rotate(m_rotation);
342 arrowTrans.translate(0, 0);
343 arrowTrans.scale(m_startArrowScale / 100.0, m_startArrowScale / 100.0);
344 if (NamedLStyle.isEmpty())
345 {
346 if (m_lineWidth != 0.0)
347 arrowTrans.scale(m_lineWidth, m_lineWidth);
348 }
349 else
350 {
351 const multiLine ml = m_Doc->docLineStyles[NamedLStyle];
352 const SingleLine& sl = ml.last();
353 if (sl.Width != 0.0)
354 arrowTrans.scale(sl.Width, sl.Width);
355 }
356 arrowTrans.scale(-1, 1);
357 arrow.map(arrowTrans);
358 FPoint minAr = getMinClipF(&arrow);
359 FPoint maxAr = getMaxClipF(&arrow);
360 arrowRect = QRectF(QPointF(minAr.x(), minAr.y()), QPointF(maxAr.x(), maxAr.y()));
361 }
362
363 return arrowRect;
364 }
365
getStartArrowOldBoundingRect() const366 QRectF PageItem_Line::getStartArrowOldBoundingRect() const
367 {
368 QRectF arrowRect;
369 if (m_startArrowIndex != 0)
370 {
371 QTransform arrowTrans;
372 FPointArray arrow = m_Doc->arrowStyles().at(m_startArrowIndex - 1).points.copy();
373 arrowTrans.translate(oldXpos, oldYpos);
374 arrowTrans.rotate(oldRot);
375 arrowTrans.translate(0, 0);
376 arrowTrans.scale(m_startArrowScale / 100.0, m_startArrowScale / 100.0);
377 if (NamedLStyle.isEmpty())
378 {
379 if (m_oldLineWidth != 0.0)
380 arrowTrans.scale(m_oldLineWidth, m_oldLineWidth);
381 }
382 else
383 {
384 const multiLine ml = m_Doc->docLineStyles[NamedLStyle];
385 const SingleLine& sl = ml.last();
386 if (sl.Width != 0.0)
387 arrowTrans.scale(sl.Width, sl.Width);
388 }
389 arrowTrans.scale(-1, 1);
390 arrow.map(arrowTrans);
391 FPoint minAr = getMinClipF(&arrow);
392 FPoint maxAr = getMaxClipF(&arrow);
393 arrowRect = QRectF(QPointF(minAr.x(), minAr.y()), QPointF(maxAr.x(), maxAr.y()));
394 }
395
396 return arrowRect;
397 }
398
getEndArrowBoundingRect() const399 QRectF PageItem_Line::getEndArrowBoundingRect() const
400 {
401 QRectF arrowRect;
402 if (m_endArrowIndex != 0)
403 {
404 QTransform arrowTrans;
405 FPointArray arrow = m_Doc->arrowStyles().at(m_endArrowIndex - 1).points.copy();
406 arrowTrans.translate(m_xPos, m_yPos);
407 arrowTrans.rotate(m_rotation);
408 arrowTrans.translate(m_width, 0);
409 arrowTrans.scale(m_endArrowScale / 100.0, m_endArrowScale / 100.0);
410 if (NamedLStyle.isEmpty())
411 {
412 if (m_lineWidth != 0.0)
413 arrowTrans.scale(m_lineWidth, m_lineWidth);
414 }
415 else
416 {
417 const multiLine ml = m_Doc->docLineStyles[NamedLStyle];
418 const SingleLine& sl = ml.last();
419 if (sl.Width != 0.0)
420 arrowTrans.scale(sl.Width, sl.Width);
421 }
422 arrow.map(arrowTrans);
423 FPoint minAr = getMinClipF(&arrow);
424 FPoint maxAr = getMaxClipF(&arrow);
425 arrowRect = QRectF(QPointF(minAr.x(), minAr.y()), QPointF(maxAr.x(), maxAr.y()));
426 }
427
428 return arrowRect;
429 }
430
getEndArrowOldBoundingRect() const431 QRectF PageItem_Line::getEndArrowOldBoundingRect() const
432 {
433 QRectF arrowRect;
434 if (m_endArrowIndex != 0)
435 {
436 QTransform arrowTrans;
437 FPointArray arrow = m_Doc->arrowStyles().at(m_endArrowIndex - 1).points.copy();
438 arrowTrans.translate(oldXpos, oldYpos);
439 arrowTrans.rotate(oldRot);
440 arrowTrans.translate(oldWidth, 0);
441 arrowTrans.scale(m_endArrowScale / 100.0, m_endArrowScale / 100.0);
442 if (NamedLStyle.isEmpty())
443 {
444 if (m_oldLineWidth != 0.0)
445 arrowTrans.scale(m_oldLineWidth, m_oldLineWidth);
446 }
447 else
448 {
449 const multiLine ml = m_Doc->docLineStyles[NamedLStyle];
450 const SingleLine& sl = ml.last();
451 if (sl.Width != 0.0)
452 arrowTrans.scale(sl.Width, sl.Width);
453 }
454 arrow.map(arrowTrans);
455 FPoint minAr = getMinClipF(&arrow);
456 FPoint maxAr = getMaxClipF(&arrow);
457 arrowRect = QRectF(QPointF(minAr.x(), minAr.y()), QPointF(maxAr.x(), maxAr.y()));
458 }
459
460 return arrowRect;
461 }
462
visualXPos() const463 double PageItem_Line::visualXPos() const
464 {
465 return m_xPos;
466 }
467
visualYPos() const468 double PageItem_Line::visualYPos() const
469 {
470 double extraSpace = visualLineWidth() / 2.0;
471 return m_yPos - extraSpace;
472 }
473
visualWidth() const474 double PageItem_Line::visualWidth() const
475 {
476 return m_width;
477 }
478
visualHeight() const479 double PageItem_Line::visualHeight() const
480 {
481 double extraSpace = visualLineWidth();
482 return extraSpace;
483 }
484