diff options
Diffstat (limited to 'krita/plugins/tools/selectiontools/kis_tool_move_selection.cc')
| -rw-r--r-- | krita/plugins/tools/selectiontools/kis_tool_move_selection.cc | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/krita/plugins/tools/selectiontools/kis_tool_move_selection.cc b/krita/plugins/tools/selectiontools/kis_tool_move_selection.cc new file mode 100644 index 00000000..25ceb924 --- /dev/null +++ b/krita/plugins/tools/selectiontools/kis_tool_move_selection.cc @@ -0,0 +1,223 @@ +/* + * Copyright (c) 2006 Cyrille Berger <cberger@cberger.net> + * + * 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 "kis_tool_move_selection.h" + +#include <stdlib.h> +#include <qpoint.h> +#include <kaction.h> +#include <kcommand.h> +#include <klocale.h> +#include <qcolor.h> +#include "kis_canvas_subject.h" +#include "kis_cursor.h" +#include "kis_image.h" +#include "kis_layer.h" +#include "kis_paint_layer.h" +#include "kis_paint_device.h" +#include "kis_button_press_event.h" +#include "kis_button_release_event.h" +#include "kis_move_event.h" +#include "kis_selection.h" +#include "kis_selection_manager.h" +#include "kis_undo_adapter.h" + +class KisSelectionOffsetCommand : public KNamedCommand { + typedef KNamedCommand super; + +public: + KisSelectionOffsetCommand(KisSelectionSP layer, const QPoint& oldpos, const QPoint& newpos); + virtual ~KisSelectionOffsetCommand(); + + virtual void execute(); + virtual void unexecute(); + +private: + void moveTo(const QPoint& pos); + +private: + KisSelectionSP m_layer; + QPoint m_oldPos; + QPoint m_newPos; +}; + + KisSelectionOffsetCommand::KisSelectionOffsetCommand(KisSelectionSP layer, const QPoint& oldpos, const QPoint& newpos) : + super(i18n("Move Layer")) + { + m_layer = layer; + m_oldPos = oldpos; + m_newPos = newpos; + + } + + KisSelectionOffsetCommand::~KisSelectionOffsetCommand() + { + } + + void KisSelectionOffsetCommand::execute() + { + moveTo(m_newPos); + } + + void KisSelectionOffsetCommand::unexecute() + { + moveTo(m_oldPos); + } + + void KisSelectionOffsetCommand::moveTo(const QPoint& pos) + { + if (m_layer->undoAdapter()) { + m_layer->undoAdapter()->setUndo(false); + } + + m_layer->setX(pos.x()); + m_layer->setY(pos.y()); + + m_layer->parentPaintDevice()->setDirty(); + + if (m_layer->undoAdapter()) { + m_layer->undoAdapter()->setUndo(true); + } + } + + +KisToolMoveSelection::KisToolMoveSelection() + : super(i18n("Move Selection Tool")) +{ + setName("tool_move_selection"); + m_subject = 0; + setCursor(KisCursor::moveCursor()); +} + +KisToolMoveSelection::~KisToolMoveSelection() +{ +} + +void KisToolMoveSelection::update(KisCanvasSubject *subject) +{ + m_subject = subject; + super::update(subject); + m_dragging = false; +} + +void KisToolMoveSelection::buttonPress(KisButtonPressEvent *e) +{ + m_dragging = false; + if (m_subject && e->button() == QMouseEvent::LeftButton) { + QPoint pos = e->pos().floorQPoint(); + KisImageSP img = m_subject->currentImg(); + KisPaintLayerSP lay; + + if (!img || !(lay = dynamic_cast<KisPaintLayer*>( img->activeLayer().data() ))) + return; + + m_dragStart = pos; + + if ( !lay->visible() || !lay->paintDevice()->hasSelection()) + return; + KisSelectionSP sel = lay->paintDevice()->selection(); + + m_dragging = true; + m_dragStart.setX(pos.x()); + m_dragStart.setY(pos.y()); + m_layerStart.setX(sel->getX()); + m_layerStart.setY(sel->getY()); + m_layerPosition = m_layerStart; + + } +} + +void KisToolMoveSelection::move(KisMoveEvent *e) +{ + if (m_subject && m_dragging) { + QPoint pos = e->pos().floorQPoint(); + if((e->state() & Qt::AltButton) || (e->state() & Qt::ControlButton)) { + if(fabs(pos.x() - m_dragStart.x()) > fabs(pos.y() - m_dragStart.y())) + pos.setY(m_dragStart.y()); + else + pos.setX(m_dragStart.x()); + } + + KisImageSP img = m_subject->currentImg(); + KisPaintLayerSP lay = dynamic_cast<KisPaintLayer*>(m_subject->currentImg()->activeLayer().data()); + if(!lay) return; + KisSelectionSP sel = lay->paintDevice()->selection(); + + QRect rc; + + pos -= m_dragStart; // convert to delta + rc = sel->selectedRect(); + sel->setX(sel->getX() + pos.x()); + sel->setY(sel->getY() + pos.y()); + rc = rc.unite(sel->selectedRect()); + + m_layerPosition = QPoint(sel->getX(), sel->getY()); + m_dragStart = e->pos().floorQPoint(); + + lay->paintDevice()->setDirty(rc); + } + +} + +void KisToolMoveSelection::buttonRelease(KisButtonReleaseEvent *e) +{ + if (m_subject && e->button() == QMouseEvent::LeftButton && m_dragging) { + m_dragging = false; + KisImageSP img = m_subject->currentImg(); + if(!img) return; + KisPaintLayerSP lay = dynamic_cast<KisPaintLayer*>(img->activeLayer().data()); + + if (lay->paintDevice()->hasSelection()) { + KisSelectionSP dev = lay->paintDevice()->selection(); + m_dragging = false; + + if (img->undo()) { + KCommand *cmd = new KisSelectionOffsetCommand( dev, m_layerStart, m_layerPosition); + Q_CHECK_PTR(cmd); + KisUndoAdapter *adapter = img->undoAdapter(); + if (adapter) { + adapter->addCommand(cmd); + } else { + delete cmd; + } + } + img->setModified(); + lay->setDirty(); + } + } +} + +void KisToolMoveSelection::setup(KActionCollection *collection) +{ + m_action = static_cast<KRadioAction *>(collection->action(name())); + + if (m_action == 0) { + m_action = new KRadioAction(i18n("&Move selection"), + "tool_move", + Qt::SHIFT+Qt::Key_V, + this, + SLOT(activate()), + collection, + name()); + m_action->setToolTip(i18n("Move the selection")); + m_action->setExclusiveGroup("tools"); + m_ownAction = true; + } +} + +#include "kis_tool_move_selection.moc" |