1 files changed, 271 insertions, 0 deletions
diff --git a/chalk/plugins/tools/tool_polyline/kis_tool_polyline.cpp b/chalk/plugins/tools/tool_polyline/kis_tool_polyline.cpp
new file mode 100644
index 000000000..ab89cf3f4
--- /dev/null
+++ b/chalk/plugins/tools/tool_polyline/kis_tool_polyline.cpp
@@ -0,0 +1,271 @@
+/*
+ *  kis_tool_polyline.cpp -- part of Chalk
+ *
+ *  Copyright (c) 2004 Michael Thaler <michael.thaler@physik.tu-muenchen.de>
+ *
+ *  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 <math.h>
+
+#include <tqpainter.h>
+#include <tqspinbox.h>
+
+#include <tdeaction.h>
+#include <kdebug.h>
+#include <tdelocale.h>
+#include <kdebug.h>
+#include <knuminput.h>
+
+#include "kis_doc.h"
+#include "kis_view.h"
+#include "kis_painter.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_paintop_registry.h"
+#include "kis_canvas.h"
+#include "kis_canvas_painter.h"
+#include "kis_cursor.h"
+
+#include "kis_tool_polyline.h"
+
+KisToolPolyline::KisToolPolyline()
+        : super(i18n ("Polyline")),
+          m_dragging (false),
+          m_currentImage (0)
+{
+    setName("tool_polyline");
+    setCursor(KisCursor::load("tool_polyline_cursor.png", 6, 6));
+}
+
+KisToolPolyline::~KisToolPolyline()
+{
+}
+
+void KisToolPolyline::update (KisCanvasSubject *subject)
+{
+        super::update (subject);
+        if (m_subject)
+            m_currentImage = m_subject->currentImg ();
+}
+
+void KisToolPolyline::buttonPress(KisButtonPressEvent *event)
+{
+    if (m_currentImage) {
+        if (event->button() == Qt::LeftButton && event->state() != TQt::ShiftButton ) {
+
+            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() == Qt::LeftButton && event->state() == TQt::ShiftButton ) {
+            finish();
+        }
+    }
+}
+
+void KisToolPolyline::deactivate()
+{
+    draw();
+    m_points.clear();
+    m_dragging = false;
+}
+
+void KisToolPolyline::finish()
+{
+    // erase old lines on canvas
+    draw();
+    m_dragging = false;
+
+    KisPaintDeviceSP device = m_currentImage->activeDevice ();
+    if (!device) return;
+    
+    KisPainter painter (device);
+    if (m_currentImage->undo()) painter.beginTransaction (i18n ("Polyline"));
+
+    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
+
+    KisPoint start,end;
+    KisPointVector::iterator it;
+    for( it = m_points.begin(); it != m_points.end(); ++it )
+    {
+        if( it == m_points.begin() )
+        {
+            start = (*it);
+        } else {
+            end = (*it);
+            painter.paintLine(start, PRESSURE_DEFAULT, 0, 0, end, PRESSURE_DEFAULT, 0, 0);
+            start = end;
+        }
+    }
+    m_points.clear();
+
+    device->setDirty( painter.dirtyRect() );
+    notifyModified();
+
+    if (m_currentImage->undo()) {
+        m_currentImage->undoAdapter()->addCommand(painter.endTransaction());
+    }
+
+}
+void KisToolPolyline::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 KisToolPolyline::buttonRelease(KisButtonReleaseEvent *event)
+{
+        if (!m_subject || !m_currentImage)
+            return;
+
+        if (m_dragging && event->button() == Qt::LeftButton)  {
+                m_dragging = false;
+                m_points.append (m_dragEnd);
+    }
+
+    if (m_dragging && event->button() == Qt::RightButton) {
+
+        }
+}
+
+
+void KisToolPolyline::doubleClick(KisDoubleClickEvent *)
+{
+    finish();
+}
+
+
+void KisToolPolyline::paint(KisCanvasPainter& gc)
+{
+    draw(gc);
+}
+
+void KisToolPolyline::paint(KisCanvasPainter& gc, const TQRect&)
+{
+    draw(gc);
+}
+
+void KisToolPolyline::draw()
+{
+    if (m_subject) {
+        KisCanvasController *controller = m_subject->canvasController();
+        KisCanvas *canvas = controller->kiscanvas();
+        KisCanvasPainter gc(canvas);
+
+        draw(gc);
+    }
+}
+
+void KisToolPolyline::draw(KisCanvasPainter& gc)
+{
+        if (!m_subject || !m_currentImage)
+            return;
+
+        TQPen pen(TQt::white, 0, TQt::SolidLine);
+
+    gc.setPen(pen);
+        gc.setRasterOp(TQt::XorROP);
+
+    KisCanvasController *controller = m_subject->canvasController();
+    KisPoint start, end;
+    TQPoint startPos;
+    TQPoint endPos;
+
+    if (m_dragging) {
+        startPos = controller->windowToView(m_dragStart.floorTQPoint());
+        endPos = controller->windowToView(m_dragEnd.floorTQPoint());
+        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.floorTQPoint());
+                endPos = controller->windowToView(end.floorTQPoint());
+
+                gc.drawLine(startPos, endPos);
+
+                start = end;
+            }
+        }
+    }
+}
+
+void KisToolPolyline::setup(TDEActionCollection *collection)
+{
+        m_action = static_cast<TDERadioAction *>(collection->action(name()));
+
+    if (m_action == 0) {
+        TDEShortcut shortcut(TQt::Key_Plus);
+        shortcut.append(TDEShortcut(TQt::Key_F9));
+        m_action = new TDERadioAction(i18n("&Polyline"),
+                        "polyline",
+                        shortcut,
+                        this,
+                        TQT_SLOT(activate()),
+                        collection,
+                        name());
+        TQ_CHECK_PTR(m_action);
+
+        m_action->setToolTip(i18n("Draw a polyline. Shift-mouseclick ends the polyline."));
+        m_action->setExclusiveGroup("tools");
+        m_ownAction = true;
+        }
+}
+
+TQString KisToolPolyline::quickHelp() const
+{
+    return i18n("Press shift-mouseclick to end the polyline.");
+}
+
+void KisToolPolyline::keyPress(TQKeyEvent *e)
+{
+    if (e->key()==TQt::Key_Escape) {
+        // erase old lines on canvas
+        draw();
+        m_dragging = false;
+        m_points.clear();
+    }
+}
+
+#include "kis_tool_polyline.moc"