diff options
Diffstat (limited to 'chalk/plugins/tools/defaulttools/kis_tool_zoom.cpp')
| -rw-r--r-- | chalk/plugins/tools/defaulttools/kis_tool_zoom.cpp | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/chalk/plugins/tools/defaulttools/kis_tool_zoom.cpp b/chalk/plugins/tools/defaulttools/kis_tool_zoom.cpp new file mode 100644 index 00000000..fe449ee4 --- /dev/null +++ b/chalk/plugins/tools/defaulttools/kis_tool_zoom.cpp @@ -0,0 +1,191 @@ +/* + * Copyright (c) 1999 Matthias Elter <me@kde.org> + * Copyright (c) 2002 Patrick Julien <freak@codepimps.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 <tdeaction.h> +#include <tdelocale.h> +#include <tdeapplication.h> + +#include "kis_image.h" +#include "kis_paint_device.h" +#include "kis_paint_layer.h" +#include "kis_canvas_controller.h" +#include "kis_canvas_subject.h" +#include "kis_canvas.h" +#include "kis_canvas_painter.h" +#include "kis_cursor.h" +#include "kis_button_press_event.h" +#include "kis_button_release_event.h" +#include "kis_move_event.h" +#include "kis_tool_zoom.h" + + +KisToolZoom::KisToolZoom() + : super(i18n("Zoom Tool")) +{ + setName("tool_zoom"); + m_subject = 0; + m_dragging = false; + m_startPos = TQPoint(0, 0); + m_endPos = TQPoint(0, 0); + m_plusCursor = KisCursor::load("tool_zoom_plus_cursor.png", 8, 8); + m_minusCursor = KisCursor::load("tool_zoom_minus_cursor.png", 8, 8); + setCursor(m_plusCursor); + connect(&m_timer, TQT_SIGNAL(timeout()), TQT_SLOT(slotTimer())); +} + +KisToolZoom::~KisToolZoom() +{ +} + +void KisToolZoom::update(KisCanvasSubject *subject) +{ + m_subject = subject; + super::update(m_subject); +} + +void KisToolZoom::paint(KisCanvasPainter& gc) +{ + if (m_dragging) + paintOutline(gc, TQRect()); +} + +void KisToolZoom::paint(KisCanvasPainter& gc, const TQRect& rc) +{ + if (m_dragging) + paintOutline(gc, rc); +} + +void KisToolZoom::buttonPress(KisButtonPressEvent *e) +{ + if (m_subject && m_subject->currentImg() && !m_dragging) { + if (e->button() == Qt::LeftButton) { + m_startPos = e->pos().floorTQPoint(); + m_endPos = e->pos().floorTQPoint(); + m_dragging = true; + } + } +} + +void KisToolZoom::move(KisMoveEvent *e) +{ + if (m_subject && m_dragging) { + if (m_startPos != m_endPos) + paintOutline(); + + m_endPos = e->pos().floorTQPoint(); + paintOutline(); + } +} + +void KisToolZoom::buttonRelease(KisButtonReleaseEvent *e) +{ + if (m_subject && m_dragging && e->button() == Qt::LeftButton) { + + KisCanvasController *controller = m_subject->canvasController(); + m_endPos = e->pos().floorTQPoint(); + m_dragging = false; + + TQPoint delta = m_endPos - m_startPos; + + if (sqrt(delta.x() * delta.x() + delta.y() * delta.y()) < 10) { + if (e->state() & TQt::ControlButton) { + controller->zoomOut(m_endPos.x(), m_endPos.y()); + } else { + controller->zoomIn(m_endPos.x(), m_endPos.y()); + } + } else { + controller->zoomTo(TQRect(m_startPos, m_endPos)); + } + } +} + +void KisToolZoom::activate() +{ + super::activate(); + m_timer.start(50); +} + +void KisToolZoom::deactivate() +{ + m_timer.stop(); +} + +void KisToolZoom::slotTimer() +{ +#if KDE_IS_VERSION(3,4,0) + int state = kapp->keyboardMouseState() & (TQt::ShiftButton|TQt::ControlButton|TQt::AltButton); +#else + int state = kapp->keyboardModifiers() & (TDEApplication::ShiftModifier + |TDEApplication::ControlModifier|TDEApplication::Modifier1); +#endif + + if (state & TQt::ControlButton) { + m_subject->canvasController()->setCanvasCursor(m_minusCursor); + } else { + m_subject->canvasController()->setCanvasCursor(m_plusCursor); + } +} + +void KisToolZoom::paintOutline() +{ + if (m_subject) { + KisCanvasController *controller = m_subject->canvasController(); + KisCanvas *canvas = controller->kiscanvas(); + KisCanvasPainter gc(canvas); + TQRect rc; + + paintOutline(gc, rc); + } +} + +void KisToolZoom::paintOutline(KisCanvasPainter& gc, const TQRect&) +{ + if (m_subject) { + KisCanvasController *controller = m_subject->canvasController(); + RasterOp op = gc.rasterOp(); + TQPen old = gc.pen(); + TQPen pen(TQt::DotLine); + TQPoint start; + TQPoint end; + + Q_ASSERT(controller); + start = controller->windowToView(m_startPos); + end = controller->windowToView(m_endPos); + + gc.setRasterOp(TQt::NotROP); + gc.setPen(pen); + gc.drawRect(TQRect(start, end)); + gc.setRasterOp(op); + gc.setPen(old); + } +} + +void KisToolZoom::setup(TDEActionCollection *collection) +{ + m_action = static_cast<TDERadioAction *>(collection->action(name())); + + if (m_action == 0) { + m_action = new TDERadioAction(i18n("&Zoom"), "tool_zoom", TQt::Key_Z, this, TQT_SLOT(activate()), collection, name()); + m_action->setToolTip(i18n("Zoom")); + m_action->setExclusiveGroup("tools"); + m_ownAction = true; + } +} + +#include "kis_tool_zoom.moc" |