From 8362bf63dea22bbf6736609b0f49c152f975eb63 Mon Sep 17 00:00:00 2001 From: tpearson Date: Wed, 20 Jan 2010 01:29:50 +0000 Subject: Added old abandoned KDE3 version of koffice git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/koffice@1077364 283d02a7-25f6-0310-bc7c-ecb5cbfe19da --- krita/plugins/tools/tool_curves/kis_tool_curve.cc | 593 ++++++++++++++++++++++ 1 file changed, 593 insertions(+) create mode 100644 krita/plugins/tools/tool_curves/kis_tool_curve.cc (limited to 'krita/plugins/tools/tool_curves/kis_tool_curve.cc') diff --git a/krita/plugins/tools/tool_curves/kis_tool_curve.cc b/krita/plugins/tools/tool_curves/kis_tool_curve.cc new file mode 100644 index 00000000..526311e3 --- /dev/null +++ b/krita/plugins/tools/tool_curves/kis_tool_curve.cc @@ -0,0 +1,593 @@ +/* + * kis_tool_curve.cc -- part of Krita + * + * Copyright (c) 2006 Emanuele Tamponi + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "kis_global.h" +#include "kis_doc.h" +#include "kis_painter.h" +#include "kis_point.h" +#include "kis_canvas_subject.h" +#include "kis_canvas_controller.h" +#include "kis_button_press_event.h" +#include "kis_button_release_event.h" +#include "kis_move_event.h" +#include "kis_canvas.h" +#include "kis_canvas_painter.h" +#include "kis_cursor.h" +#include "kis_tool_controller.h" +#include "kis_vec.h" +#include "kis_selection.h" +#include "kis_selection_options.h" +#include "kis_selected_transaction.h" +#include "kis_paintop_registry.h" + +#include "kis_curve_framework.h" +#include "kis_tool_curve.h" + +QRect KisToolCurve::pivotRect (const QPoint& pos) +{ + return QRect (pos-QPoint(4,4),pos+QPoint(4,4)); +} + +QRect KisToolCurve::selectedPivotRect (const QPoint& pos) +{ + return QRect (pos-QPoint(5,5),pos+QPoint(5,5)); +} + +KisToolCurve::KisToolCurve(const QString& UIName) + : super(UIName) +{ + m_UIName = UIName; + m_currentImage = 0; + m_optWidget = 0; + + m_curve = 0; + + m_dragging = false; + m_draggingCursor = false; + m_drawPivots = true; + m_drawingPen = QPen(Qt::white, 0, Qt::SolidLine); + m_pivotPen = QPen(Qt::gray, 0, Qt::SolidLine); + m_selectedPivotPen = QPen(Qt::yellow, 0, Qt::SolidLine); + m_pivotRounding = m_selectedPivotRounding = 55; + + m_actionOptions = NOOPTIONS; + m_supportMinimalDraw = true; + m_selectAction = SELECTION_ADD; +} + +KisToolCurve::~KisToolCurve() +{ + +} + +void KisToolCurve::update (KisCanvasSubject *subject) +{ + super::update(subject); + if (m_subject) + m_currentImage = m_subject->currentImg(); +} + +void KisToolCurve::deactivate() +{ + draw(false); + if (m_curve) { + m_curve->clear(); + m_curve->endActionOptions(); + } + + m_actionOptions = NOOPTIONS; + m_dragging = false; + m_drawPivots = true; +} + +void KisToolCurve::buttonPress(KisButtonPressEvent *event) +{ + updateOptions(event->state()); + if (!m_currentImage) + return; + if (event->button() == Qt::LeftButton) { + m_dragging = true; + m_currentPoint = event->pos(); + PointPair temp = pointUnderMouse (m_subject->canvasController()->windowToView(event->pos().toQPoint())); + if (temp.first == m_curve->end() && !(m_actionOptions)) { + draw(true, true); + m_curve->selectAll(false); + draw(true, true); + draw(m_curve->end()); + m_previous = m_curve->find(m_curve->last()); + m_current = m_curve->pushPivot(event->pos()); + if (m_curve->pivots().count() > 1) + m_curve->calculateCurve(m_previous,m_current,m_current); + draw(m_current); + } else { + draw(true, true); + if (temp.second) + m_current = m_curve->selectPivot(temp.first); + else + m_current = selectByMouse(temp.first); + + if (!(*m_current).isSelected()) + m_dragging = false; + draw(true, true); + } + } +} + +void KisToolCurve::keyPress(QKeyEvent *event) +{ + if (event->key() == Qt::Key_Return) { + m_dragging = false; + commitCurve(); + } else + if (event->key() == Qt::Key_Escape) { + m_dragging = false; + draw(false); + m_curve->clear(); + } else + if (event->key() == Qt::Key_Delete) { + draw(false); + m_dragging = false; + m_curve->deleteSelected(); + m_current = m_curve->find(m_curve->last()); + m_previous = m_curve->selectPivot(m_current); + draw(false); + } +} + +void KisToolCurve::keyRelease(QKeyEvent *) +{ + +} + +void KisToolCurve::buttonRelease(KisButtonReleaseEvent *event) +{ + updateOptions(event->state()); + m_dragging = false; +} + +void KisToolCurve::doubleClick(KisDoubleClickEvent *) +{ + commitCurve(); +} + +void KisToolCurve::move(KisMoveEvent *event) +{ + updateOptions(event->state()); + PointPair temp = pointUnderMouse(m_subject->canvasController()->windowToView(event->pos().toQPoint())); + if (temp.first == m_curve->end() && !m_dragging) { + if (m_draggingCursor) { + setCursor(KisCursor::load(m_cursor, 6, 6)); + m_draggingCursor = false; + } + } else { + setCursor(KisCursor::load("tool_curve_dragging.png", 6, 6)); + m_draggingCursor = true; + } + if (m_dragging) { + draw(); + KisPoint trans = event->pos() - m_currentPoint; + m_curve->moveSelected(trans); + m_currentPoint = event->pos(); + draw(); + } +} + +double pointToSegmentDistance(const KisPoint& p, const KisPoint& l0, const KisPoint& l1) +{ + double lineLength = sqrt((l1.x() - l0.x()) * (l1.x() - l0.x()) + (l1.y() - l0.y()) * (l1.y() - l0.y())); + double distance = 0; + KisVector2D v0(l0), v1(l1), v(p), seg(v0-v1), dist0(v0-p), dist1(v1-p); + + if (seg.length() < dist0.length() || + seg.length() < dist1.length()) // the point doesn't perpendicolarly intersecate the segment (or it's too far from the segment) + return (double)INT_MAX; + + if (lineLength > DBL_EPSILON) { + distance = ((l0.y() - l1.y()) * p.x() + (l1.x() - l0.x()) * p.y() + l0.x() * l1.y() - l1.x() * l0.y()) / lineLength; + distance = fabs(distance); + } + + return distance; +} + +PointPair KisToolCurve::pointUnderMouse(const QPoint& pos) +{ + KisCurve::iterator it, next; + QPoint pos1, pos2; + it = handleUnderMouse(pos); + if (it != m_curve->end()) + return PointPair(it,true); + + for (it = m_curve->begin(); it != m_curve->end(); it++) { + next = it.next(); + if (next == m_curve->end() || it == m_curve->end()) + return PointPair(m_curve->end(),false); + if ((*it).hint() > LINEHINT || (*next).hint() > LINEHINT) + continue; + pos1 = m_subject->canvasController()->windowToView((*it).point().toQPoint()); + pos2 = m_subject->canvasController()->windowToView((*next).point().toQPoint()); + if (pos1 == pos2) + continue; + if (pointToSegmentDistance(pos,pos1,pos2) <= MAXDISTANCE) + break; + } + + return PointPair(it,false); +} + +KisCurve::iterator KisToolCurve::handleUnderMouse(const QPoint& pos) +{ + KisCurve pivs = m_curve->pivots(), inHandle; + KisCurve::iterator it; + for (it = pivs.begin(); it != pivs.end(); it++) { + if (pivotRect(m_subject->canvasController()->windowToView((*it).point().toQPoint())).contains(pos)) + inHandle.pushPoint((*it)); + } + if (inHandle.isEmpty()) + return m_curve->end(); + return m_curve->find(inHandle.last()); +} + +KisCurve::iterator KisToolCurve::selectByMouse(KisCurve::iterator it) +{ + KisCurve::iterator prevPivot, nextPivot; + + if ((*it).isPivot()) + prevPivot = it; + else + prevPivot = it.previousPivot(); + nextPivot = it.nextPivot(); + + m_curve->selectPivot(prevPivot); + (*nextPivot).setSelected(true); + + return prevPivot; +} + +int KisToolCurve::updateOptions(int key) +{ + int options = 0x0000; + + if (key & Qt::ControlButton) + options |= CONTROLOPTION; + + if (key & Qt::ShiftButton) + options |= SHIFTOPTION; + + if (key & Qt::AltButton) + options |= ALTOPTION; + + if (options != m_actionOptions) { + draw(false); + m_actionOptions = options; + m_curve->setActionOptions(m_actionOptions); + draw(false); + } + + return m_actionOptions; +} + +void KisToolCurve::draw(bool m, bool o) +{ + draw(KisCurve::iterator(), o, m); +} + +void KisToolCurve::draw(KisCurve::iterator inf, bool pivotonly, bool minimal) +{ + if (m_curve->isEmpty()) + return; + KisCanvasPainter *gc; + KisCanvasController *controller; + KisCanvas *canvas; + if (m_subject && m_currentImage) { + controller = m_subject->canvasController(); + canvas = controller->kiscanvas(); + gc = new KisCanvasPainter(canvas); + } else + return; + + gc->setPen(m_drawingPen); + gc->setRasterOp(Qt::XorROP); + + KisCurve::iterator it, finish; + + if (minimal && m_supportMinimalDraw) { + if (pivotonly) { + KisCurve p = m_curve->pivots(); + for (KisCurve::iterator i = p.begin(); i != p.end(); i++) + drawPivotHandle (*gc, i); + delete gc; + return; + } + if (inf.target() != 0) { + if (inf != m_curve->end()) { + it = inf.previousPivot(); + finish = inf.nextPivot(); + } else { + it = --m_curve->end(); + finish = m_curve->end(); + } + } else { + KisCurve sel = m_curve->selectedPivots(); + if (sel.isEmpty()) { + delete gc; + return; + } + for (KisCurve::iterator i = sel.begin(); i != sel.end(); i++) { + it = m_curve->find(*i).previousPivot(); + finish = m_curve->find(*i).nextPivot(); + if ((*finish).isSelected()) + finish = finish.previousPivot(); + while (it != finish) { + if ((*it).isPivot()) + drawPivotHandle (*gc, it); + it = drawPoint (*gc, it); + } + } + delete gc; + return; + } + } else { + it = m_curve->begin(); + finish = m_curve->end(); + } + while (it != finish) { + if ((*it).isPivot()) + drawPivotHandle (*gc, it); + it = drawPoint (*gc, it); + } + + delete gc; +} + +KisCurve::iterator KisToolCurve::drawPoint(KisCanvasPainter& gc, KisCurve::iterator point) +{ + KisCanvasController *controller = m_subject->canvasController(); + + QPoint pos1, pos2; + pos1 = controller->windowToView((*point).point().toQPoint()); + + switch ((*point).hint()) { + case POINTHINT: + gc.drawPoint(pos1); + point += 1; + break; + case LINEHINT: + gc.drawPoint(pos1); + if (++point != m_curve->end() && (*point).hint() <= LINEHINT) { + pos2 = controller->windowToView((*point).point().toQPoint()); + gc.drawLine(pos1,pos2); + } + break; + default: + point += 1; + } + + return point; +} + +void KisToolCurve::drawPivotHandle(KisCanvasPainter& gc, KisCurve::iterator point) +{ + KisCanvasController *controller = m_subject->canvasController(); + + if (m_drawPivots) { + QPoint pos = controller->windowToView((*point).point().toQPoint()); + if ((*point).isSelected()) { + gc.setPen(m_selectedPivotPen); + gc.drawRoundRect(selectedPivotRect(pos),m_selectedPivotRounding,m_selectedPivotRounding); + } else { + gc.setPen(m_pivotPen); + gc.drawRoundRect(pivotRect(pos),m_pivotRounding,m_pivotRounding); + } + gc.setPen(m_drawingPen); + } +} + +void KisToolCurve::paint(KisCanvasPainter&) +{ + draw(false); +} + +void KisToolCurve::paint(KisCanvasPainter&, const QRect&) +{ + draw(false); +} + +void KisToolCurve::commitCurve() +{ + if (toolType() == TOOL_SHAPE || toolType() == TOOL_FREEHAND) + paintCurve(); + else if (toolType() == TOOL_SELECT) + selectCurve(); + else + kdDebug(0) << "NO SUPPORT FOR THIS TYPE OF TOOL" << endl; + + m_curve->clear(); + m_curve->endActionOptions(); +} + +void KisToolCurve::paintCurve() +{ + KisPaintDeviceSP device = m_currentImage->activeDevice (); + if (!device) return; + + KisPainter painter (device); + if (m_currentImage->undo()) painter.beginTransaction (m_transactionMessage); + + painter.setPaintColor(m_subject->fgColor()); + painter.setBrush(m_subject->currentBrush()); + painter.setOpacity(m_opacity); + painter.setCompositeOp(m_compositeOp); + KisPaintOp * op = KisPaintOpRegistry::instance()->paintOp(m_subject->currentPaintop(), m_subject->currentPaintopSettings(), &painter); + painter.setPaintOp(op); // Painter takes ownership + +// Call paintPoint + KisCurve::iterator it = m_curve->begin(); + while (it != m_curve->end()) + it = paintPoint(painter,it); +// Finish + + device->setDirty( painter.dirtyRect() ); + notifyModified(); + + if (m_currentImage->undo()) { + m_currentImage->undoAdapter()->addCommand(painter.endTransaction()); + } + + draw(false); +} + +KisCurve::iterator KisToolCurve::paintPoint (KisPainter& painter, KisCurve::iterator point) +{ + KisCurve::iterator next = point; next+=1; + switch ((*point).hint()) { + case POINTHINT: + painter.paintAt((*point++).point(), PRESSURE_DEFAULT, 0, 0); + break; + case LINEHINT: + if (next != m_curve->end() && (*next).hint() <= LINEHINT) + painter.paintLine((*point++).point(), PRESSURE_DEFAULT, 0, 0, (*next).point(), PRESSURE_DEFAULT, 0, 0); + else + painter.paintAt((*point++).point(), PRESSURE_DEFAULT, 0, 0); + break; + default: + point += 1; + } + + return point; +} + +QValueVector KisToolCurve::convertCurve() +{ + QValueVector points; + + for (KisCurve::iterator i = m_curve->begin(); i != m_curve->end(); i++) + if ((*i).hint() != NOHINTS) + points.append((*i).point()); + + return points; +} + +void KisToolCurve::selectCurve() +{ + QApplication::setOverrideCursor(KisCursor::waitCursor()); + KisPaintDeviceSP dev = m_currentImage->activeDevice(); + bool hasSelection = dev->hasSelection(); + KisSelectedTransaction *t = 0; + if (m_currentImage->undo()) t = new KisSelectedTransaction(m_transactionMessage, dev); + KisSelectionSP selection = dev->selection(); + + if (!hasSelection) { + selection->clear(); + } + + KisPainter painter(selection.data()); + + painter.setPaintColor(KisColor(Qt::black, selection->colorSpace())); + painter.setFillStyle(KisPainter::FillStyleForegroundColor); + painter.setStrokeStyle(KisPainter::StrokeStyleNone); + painter.setBrush(m_subject->currentBrush()); + painter.setOpacity(OPACITY_OPAQUE); + KisPaintOp * op = KisPaintOpRegistry::instance()->paintOp("paintbrush", 0, &painter); + painter.setPaintOp(op); // And now the painter owns the op and will destroy it. + + switch (m_selectAction) { + case SELECTION_ADD: + painter.setCompositeOp(COMPOSITE_OVER); + break; + case SELECTION_SUBTRACT: + painter.setCompositeOp(COMPOSITE_SUBTRACT); + break; + default: + break; + } + + painter.paintPolygon(convertCurve()); + + + if(hasSelection) { + QRect dirty(painter.dirtyRect()); + dev->setDirty(dirty); + dev->emitSelectionChanged(dirty); + } else { + dev->setDirty(); + dev->emitSelectionChanged(); + } + + if (m_currentImage->undo()) + m_currentImage->undoAdapter()->addCommand(t); + + QApplication::restoreOverrideCursor(); + + draw(false); +} + +QWidget* KisToolCurve::createOptionWidget(QWidget* parent) +{ + if (toolType() == TOOL_SHAPE || toolType() == TOOL_FREEHAND) + return super::createOptionWidget(parent); + else if (toolType() == TOOL_SELECT) + return createSelectionOptionWidget(parent); + else + kdDebug(0) << "NO SUPPORT FOR THIS TOOL TYPE" << endl; + return 0; +} + +void KisToolCurve::slotSetAction(int action) { + if (action >= SELECTION_ADD && action <= SELECTION_SUBTRACT) + m_selectAction =(enumSelectionMode)action; +} + +QWidget* KisToolCurve::createSelectionOptionWidget(QWidget* parent) +{ + m_optWidget = new KisSelectionOptions(parent, m_subject); + Q_CHECK_PTR(m_optWidget); + m_optWidget->setCaption(m_UIName); + + connect (m_optWidget, SIGNAL(actionChanged(int)), this, SLOT(slotSetAction(int))); + + QVBoxLayout * l = dynamic_cast(m_optWidget->layout()); + l->addItem(new QSpacerItem(1, 1, QSizePolicy::Fixed, QSizePolicy::Expanding)); + + return m_optWidget; +} + +QWidget* KisToolCurve::optionWidget() +{ + if (toolType() == TOOL_SELECT) + return m_optWidget; + else + return super::optionWidget(); +} + +#include "kis_tool_curve.moc" -- cgit v1.2.1