1 files changed, 245 insertions, 0 deletions
diff --git a/chalk/plugins/tools/tool_star/kis_tool_star.cpp b/chalk/plugins/tools/tool_star/kis_tool_star.cpp
new file mode 100644
index 00000000..3a260545
--- /dev/null
+++ b/chalk/plugins/tools/tool_star/kis_tool_star.cpp
@@ -0,0 +1,245 @@
+/*
+ *  kis_tool_star.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 <tqlayout.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_int_spinbox.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_int_spinbox.h"
+
+#include "kis_tool_star.h"
+#include "wdg_tool_star.h"
+
+KisToolStar::KisToolStar()
+    : super(i18n("Star")),
+      m_dragging (false),
+      m_currentImage (0)
+{
+    setName("tool_star");
+    setCursor(KisCursor::load("tool_star_cursor.png", 6, 6));
+    m_innerOuterRatio=40;
+    m_vertices=5;
+}
+
+KisToolStar::~KisToolStar()
+{
+}
+
+void KisToolStar::update (KisCanvasSubject *subject)
+{
+    super::update (subject);
+    if (m_subject)
+        m_currentImage = m_subject->currentImg ();
+}
+
+void KisToolStar::buttonPress(KisButtonPressEvent *event)
+{
+    if (m_currentImage && event->button() == Qt::LeftButton) {
+        m_dragging = true;
+        m_dragStart = event->pos();
+        m_dragEnd = event->pos();
+        m_vertices = m_optWidget->verticesSpinBox->value();
+        m_innerOuterRatio = m_optWidget->ratioSpinBox->value();
+    }
+}
+
+void KisToolStar::move(KisMoveEvent *event)
+{
+    if (m_dragging) {
+        // erase old lines on canvas
+        draw(m_dragStart, m_dragEnd);
+        // move (alt) or resize star
+        if (event->state() & TQt::AltButton) {
+            KisPoint trans = event->pos() - m_dragEnd;
+            m_dragStart += trans;
+            m_dragEnd += trans;
+        } else {
+            m_dragEnd = event->pos();
+        }
+        // draw new lines on canvas
+        draw(m_dragStart, m_dragEnd);
+    }
+}
+
+void KisToolStar::buttonRelease(KisButtonReleaseEvent *event)
+{
+    if (!m_subject || !m_currentImage)
+        return;
+
+    if (m_dragging && event->button() == Qt::LeftButton) {
+        // erase old lines on canvas
+        draw(m_dragStart, m_dragEnd);
+        m_dragging = false;
+
+        if (m_dragStart == m_dragEnd)
+            return;
+
+        if (!m_currentImage)
+            return;
+
+        if (!m_currentImage->activeDevice())
+            return;
+        
+        KisPaintDeviceSP device = m_currentImage->activeDevice ();;
+        KisPainter painter (device);
+        if (m_currentImage->undo()) painter.beginTransaction (i18n("Star"));
+
+        painter.setPaintColor(m_subject->fgColor());
+        painter.setBackgroundColor(m_subject->bgColor());
+        painter.setFillStyle(fillStyle());
+        painter.setBrush(m_subject->currentBrush());
+        painter.setPattern(m_subject->currentPattern());
+        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
+
+        vKisPoint coord = starCoordinates(m_vertices, m_dragStart.x(), m_dragStart.y(), m_dragEnd.x(), m_dragEnd.y());
+
+        painter.paintPolygon(coord);
+        
+        device->setDirty( painter.dirtyRect() );
+        notifyModified();
+
+        if (m_currentImage->undo()) {
+            m_currentImage->undoAdapter()->addCommand(painter.endTransaction());
+        }
+    }
+}
+
+void KisToolStar::draw(const KisPoint& start, const KisPoint& end )
+{
+    if (!m_subject || !m_currentImage)
+        return;
+
+    KisCanvasController *controller = m_subject->canvasController();
+    KisCanvas *canvas = controller->kiscanvas();
+    KisCanvasPainter p (canvas);
+    TQPen pen(TQt::SolidLine);
+
+    KisPoint startPos;
+    KisPoint endPos;
+    startPos = controller->windowToView(start);
+    endPos = controller->windowToView(end);
+
+    p.setRasterOp(TQt::NotROP);
+
+    vKisPoint points = starCoordinates(m_vertices, startPos.x(), startPos.y(), endPos.x(), endPos.y());
+
+    for (uint i = 0; i < points.count() - 1; i++) {
+        p.drawLine(points[i].floorTQPoint(), points[i + 1].floorTQPoint());
+    }
+    p.drawLine(points[points.count() - 1].floorTQPoint(), points[0].floorTQPoint());
+
+    p.end ();
+}
+
+void KisToolStar::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("&Star"),
+                                    "tool_star",
+                                    shortcut,
+                                    this,
+                                    TQT_SLOT(activate()),
+                                    collection,
+                                    name());
+        TQ_CHECK_PTR(m_action);
+
+        m_action->setToolTip(i18n("Draw a star"));
+        m_action->setExclusiveGroup("tools");
+        m_ownAction = true;
+    }
+}
+
+vKisPoint KisToolStar::starCoordinates(int N, double mx, double my, double x, double y)
+{
+    double R=0, r=0;
+    TQ_INT32 n=0;
+    double angle;
+
+    vKisPoint starCoordinatesArray(2*N);
+
+    // the radius of the outer edges
+    R=sqrt((x-mx)*(x-mx)+(y-my)*(y-my));
+
+    // the radius of the inner edges
+    r=R*m_innerOuterRatio/100.0;
+
+    // the angle
+    angle=-atan2((x-mx),(y-my));
+
+    //set outer edges
+    for(n=0;n<N;n++){
+        starCoordinatesArray[2*n] = KisPoint(mx+R*cos(n * 2.0 * M_PI / N + angle),my+R*sin(n *2.0 * M_PI / N+angle));
+    }
+
+    //set inner edges
+    for(n=0;n<N;n++){
+        starCoordinatesArray[2*n+1] = KisPoint(mx+r*cos((n + 0.5) * 2.0 * M_PI / N + angle),my+r*sin((n +0.5) * 2.0 * M_PI / N + angle));
+    }
+
+    return starCoordinatesArray;
+}
+
+TQWidget* KisToolStar::createOptionWidget(TQWidget* parent)
+{
+    TQWidget *widget = super::createOptionWidget(parent);
+
+    m_optWidget = new WdgToolStar(widget);
+    TQ_CHECK_PTR(m_optWidget);
+
+    m_optWidget->ratioSpinBox->setValue(m_innerOuterRatio);
+
+    TQGridLayout *optionLayout = new TQGridLayout(widget, 1, 1);
+    super::addOptionWidgetLayout(optionLayout);
+
+    optionLayout->addWidget(m_optWidget, 0, 0);
+
+    return widget;
+}
+
+#include "kis_tool_star.moc"