diff options
Diffstat (limited to 'krita/plugins/tools/selectiontools/kis_tool_select_polygonal.cc')
| -rw-r--r-- | krita/plugins/tools/selectiontools/kis_tool_select_polygonal.cc | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/krita/plugins/tools/selectiontools/kis_tool_select_polygonal.cc b/krita/plugins/tools/selectiontools/kis_tool_select_polygonal.cc new file mode 100644 index 000000000..dc7cec97c --- /dev/null +++ b/krita/plugins/tools/selectiontools/kis_tool_select_polygonal.cc @@ -0,0 +1,315 @@ +/* + * kis_tool_select_polygonal.h - part of Krayon^WKrita + * + * Copyright (c) 2000 John Califf <jcaliff@compuzone.net> + * Copyright (c) 2002 Patrick Julien <freak@codepimps.org> + * Copyright (c) 2004 Boudewijn Rempt <boud@valdyas.org> + * + * 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 <qapplication.h> +#include <qpainter.h> +#include <qregion.h> +#include <qwidget.h> +#include <qlayout.h> + +#include <kaction.h> +#include <kdebug.h> +#include <kcommand.h> +#include <klocale.h> + +#include <kis_layer.h> +#include <kis_selection_options.h> +#include <kis_canvas_controller.h> +#include <kis_canvas_subject.h> +#include <kis_cursor.h> +#include <kis_image.h> +#include <kis_tool_select_polygonal.h> +#include <kis_vec.h> +#include <kis_undo_adapter.h> +#include <kis_button_press_event.h> +#include <kis_button_release_event.h> +#include <kis_move_event.h> +#include "kis_selected_transaction.h" +#include "kis_painter.h" +#include "kis_paintop_registry.h" +#include "kis_canvas.h" +#include "kis_canvas_painter.h" + +KisToolSelectPolygonal::KisToolSelectPolygonal() + : super(i18n("Select Polygonal")) +{ + setName("tool_select_polygonal"); + setCursor(KisCursor::load("tool_polygonal_selection_cursor.png", 6, 6)); + + m_subject = 0; + m_dragging = false; + m_optWidget = 0; + m_selectAction = SELECTION_ADD; +} + +KisToolSelectPolygonal::~KisToolSelectPolygonal() +{ +} + +void KisToolSelectPolygonal::activate() +{ + m_points.clear(); + super::activate(); + + if (!m_optWidget) + return; + + m_optWidget->slotActivated(); +} + +void KisToolSelectPolygonal::deactivate() +{ + draw(); + m_points.clear(); + m_dragging = false; +} + + +void KisToolSelectPolygonal::update (KisCanvasSubject *subject) +{ + m_subject = subject; + super::update(m_subject); +} + +void KisToolSelectPolygonal::buttonPress(KisButtonPressEvent *event) +{ + if (event->button() == LeftButton) { + m_dragging = true; + + if (m_points.isEmpty()) + { + m_dragStart = event->pos(); + m_dragEnd = event->pos(); + m_points.append(m_dragStart); + } else { + m_dragStart = m_dragEnd; + m_dragEnd = event->pos(); + draw(); + } + } else if (event->button() == LeftButton && event->state() == ShiftButton) { + finish(); + } +} + + +void KisToolSelectPolygonal::doubleClick( KisDoubleClickEvent * ) +{ + finish(); +} + +void KisToolSelectPolygonal::finish() +{ + // erase old lines on canvas + draw(); + m_dragging = false; + + KisImageSP img = m_subject->currentImg(); + + if (img && img->activeDevice()) { + QApplication::setOverrideCursor(KisCursor::waitCursor()); + KisPaintDeviceSP dev = img->activeDevice(); + + bool hasSelection = dev->hasSelection(); + KisSelectedTransaction *t = 0; + if (img->undo()) t = new KisSelectedTransaction(i18n("Polygonal Selection"), 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(m_points); + + if(hasSelection) { + QRect rect(painter.dirtyRect()); + dev->setDirty(rect); + dev->emitSelectionChanged(rect); + } else { + dev->setDirty(); + dev->emitSelectionChanged(); + } + + if (img->undo()) img->undoAdapter()->addCommand(t); + + QApplication::restoreOverrideCursor(); + } + + m_points.clear(); + +} + +void KisToolSelectPolygonal::move(KisMoveEvent *event) +{ + if (m_dragging) { + // erase old lines on canvas + draw(); + // get current mouse position + m_dragEnd = event->pos(); + // draw new lines on canvas + draw(); + } +} + +void KisToolSelectPolygonal::buttonRelease(KisButtonReleaseEvent *event) +{ + if (!m_subject) + return; + + if (m_dragging && event->button() == LeftButton) { + m_dragging = false; + m_points.append (m_dragEnd); + } + + if (m_dragging && event->button() == RightButton) { + + } +} + +void KisToolSelectPolygonal::paint(KisCanvasPainter& gc) +{ + draw(gc); +} + +void KisToolSelectPolygonal::paint(KisCanvasPainter& gc, const QRect&) +{ + draw(gc); +} + +void KisToolSelectPolygonal::draw() +{ + if (m_subject) { + KisCanvasController *controller = m_subject->canvasController(); + KisCanvas *canvas = controller->kiscanvas(); + KisCanvasPainter gc(canvas); + + draw(gc); + } +} + +void KisToolSelectPolygonal::draw(KisCanvasPainter& gc) +{ + if (!m_subject) + return; + + QPen pen(Qt::white, 0, Qt::DotLine); + + gc.setPen(pen); + gc.setRasterOp(Qt::XorROP); + + KisCanvasController *controller = m_subject->canvasController(); + KisPoint start, end; + QPoint startPos; + QPoint endPos; + + if (m_dragging) { + startPos = controller->windowToView(m_dragStart.floorQPoint()); + endPos = controller->windowToView(m_dragEnd.floorQPoint()); + gc.drawLine(startPos, endPos); + } else { + for (KisPointVector::iterator it = m_points.begin(); it != m_points.end(); ++it) { + + if (it == m_points.begin()) + { + start = (*it); + } else { + end = (*it); + + startPos = controller->windowToView(start.floorQPoint()); + endPos = controller->windowToView(end.floorQPoint()); + + gc.drawLine(startPos, endPos); + + start = end; + } + } + } +} + + +void KisToolSelectPolygonal::setup(KActionCollection *collection) +{ + m_action = static_cast<KRadioAction *>(collection->action(name())); + + if (m_action == 0) { + m_action = new KRadioAction(i18n("&Polygonal Selection"), + "tool_polygonal_selection" , + 0, + this, + SLOT(activate()), + collection, + name()); + Q_CHECK_PTR(m_action); + m_action->setExclusiveGroup("tools"); + m_action->setToolTip(i18n("Select a polygonal area")); + m_ownAction = true; + } +} + + +QWidget* KisToolSelectPolygonal::createOptionWidget(QWidget* parent) +{ + m_optWidget = new KisSelectionOptions(parent, m_subject); + Q_CHECK_PTR(m_optWidget); + m_optWidget->setCaption(i18n("Polygonal Selection")); + + connect (m_optWidget, SIGNAL(actionChanged(int)), this, SLOT(slotSetAction(int))); + + QVBoxLayout * l = dynamic_cast<QVBoxLayout*>(m_optWidget->layout()); + l->addItem(new QSpacerItem(1, 1, QSizePolicy::Fixed, QSizePolicy::Expanding)); + + return m_optWidget; +} + +QWidget* KisToolSelectPolygonal::optionWidget() +{ + return m_optWidget; +} + +void KisToolSelectPolygonal::slotSetAction(int action) { + if (action >= SELECTION_ADD && action <= SELECTION_SUBTRACT) + m_selectAction =(enumSelectionMode)action; +} + + + +#include "kis_tool_select_polygonal.moc" |