+ double absAngle = (Vector(toolPoint[1] - toolPoint[0]).Angle()) * RADIANS_TO_DEGREES;
+ QString text = QChar(0x2221) + QObject::tr(": %1");
+ informativeText = text.arg(absAngle);
+
+ if (ctrlDown)
+ informativeText += " (Copy)";
+ }
+ }
+ else if (Global::tool == TTMirror)
+ {
+ if ((Global::toolState == TSNone) || (Global::toolState == TSPoint1))
+ painter->DrawHandle(toolPoint[0]);
+ else if ((Global::toolState == TSPoint2) && shiftDown)
+ painter->DrawHandle(toolPoint[1]);
+ else
+ {
+ if (toolPoint[0] == toolPoint[1])
+ return;
+
+ Point mirrorPoint = toolPoint[0] + Vector(toolPoint[1], toolPoint[0]);
+// painter->DrawLine(toolPoint[0], toolPoint[1]);
+ painter->DrawLine(mirrorPoint, toolPoint[1]);
+ // Likely we need a tool container for this... (now we do!)
+#if 0
+ if (ctrlDown)
+ {
+ painter->SetPen(0x00FF00, 2.0, LSSolid);
+ overrideColor = true;
+ }
+
+ RenderObjects(painter, toolObjects);
+ overrideColor = false;
+#endif
+
+ double absAngle = (Vector(toolPoint[1] - toolPoint[0]).Angle()) * RADIANS_TO_DEGREES;
+
+ if (absAngle > 180.0)
+ absAngle -= 180.0;
+
+ QString text = QChar(0x2221) + QObject::tr(": %1");
+ informativeText = text.arg(absAngle);
+
+ if (ctrlDown)
+ informativeText += " (Copy)";
+ }
+ }
+}
+
+
+void DrawingView::LineHandler(int mode, Point p)
+{
+ switch (mode)
+ {
+ case ToolMouseDown:
+ if (Global::toolState == TSNone)
+ toolPoint[0] = p;
+ else
+ toolPoint[1] = p;
+
+ break;
+ case ToolMouseMove:
+ if (Global::toolState == TSNone)
+ toolPoint[0] = p;
+ else
+ toolPoint[1] = p;
+
+ break;
+ case ToolMouseUp:
+ if (Global::toolState == TSNone)
+ {
+ Global::toolState = TSPoint2;
+ // Prevent spurious line from drawing...
+ toolPoint[1] = toolPoint[0];
+ }
+ else if ((Global::toolState == TSPoint2) && shiftDown)
+ {
+ // Key override is telling us to make a new line, not continue the
+ // previous one.
+ toolPoint[0] = toolPoint[1];
+ }
+ else
+ {
+ Line * l = new Line(toolPoint[0], toolPoint[1]);
+ l->layer = Global::activeLayer;
+ document.objects.push_back(l);
+ toolPoint[0] = toolPoint[1];
+ }
+ }
+}
+
+
+void DrawingView::CircleHandler(int mode, Point p)
+{
+ switch (mode)
+ {
+ case ToolMouseDown:
+ if (Global::toolState == TSNone)
+ toolPoint[0] = p;
+ else
+ toolPoint[1] = p;
+
+ break;
+ case ToolMouseMove:
+ if (Global::toolState == TSNone)
+ toolPoint[0] = p;
+ else
+ toolPoint[1] = p;
+
+ break;
+ case ToolMouseUp:
+ if (Global::toolState == TSNone)
+ {
+ Global::toolState = TSPoint2;
+ // Prevent spurious line from drawing...
+ toolPoint[1] = toolPoint[0];
+ }
+ else if ((Global::toolState == TSPoint2) && shiftDown)
+ {
+ // Key override is telling us to make a new line, not continue the
+ // previous one.
+ toolPoint[0] = toolPoint[1];
+ }
+ else
+ {
+ double length = Vector::Magnitude(toolPoint[0], toolPoint[1]);
+ Circle * c = new Circle(toolPoint[0], length);
+ c->layer = Global::activeLayer;
+ document.objects.push_back(c);
+ toolPoint[0] = toolPoint[1];
+ Global::toolState = TSNone;
+ }
+ }
+}
+
+
+void DrawingView::ArcHandler(int mode, Point p)
+{
+ switch (mode)
+ {
+ case ToolMouseDown:
+ if (Global::toolState == TSNone)
+ toolPoint[0] = p;
+ else if (Global::toolState == TSPoint2)
+ toolPoint[1] = p;
+ else if (Global::toolState == TSPoint3)
+ toolPoint[2] = p;
+ else
+ toolPoint[3] = p;
+
+ break;
+ case ToolMouseMove:
+ if (Global::toolState == TSNone)
+ toolPoint[0] = p;
+ else if (Global::toolState == TSPoint2)
+ toolPoint[1] = p;
+ else if (Global::toolState == TSPoint3)
+ toolPoint[2] = p;
+ else
+ toolPoint[3] = p;
+
+ break;
+ case ToolMouseUp:
+ if (Global::toolState == TSNone)
+ {
+ // Prevent spurious line from drawing...
+ toolPoint[1] = toolPoint[0];
+ Global::toolState = TSPoint2;
+ }
+ else if (Global::toolState == TSPoint2)
+ {
+ if (shiftDown)
+ {
+ // Key override is telling us to start circle at new center, not
+ // continue the current one.
+ toolPoint[0] = toolPoint[1];
+ return;
+ }
+
+ // Set the radius in toolPoint[1].x
+ toolPoint[1].x = Vector::Magnitude(toolPoint[0], toolPoint[1]);
+ Global::toolState = TSPoint3;
+ }
+ else if (Global::toolState == TSPoint3)
+ {
+ // Set the angle in toolPoint[2].x
+ toolPoint[2].x = Vector::Angle(toolPoint[0], toolPoint[2]);
+ Global::toolState = TSPoint4;
+ }
+ else
+ {
+ double endAngle = Vector::Angle(toolPoint[0], toolPoint[3]);
+ double span = endAngle - toolPoint[2].x;
+
+ if (span < 0)
+ span += PI_TIMES_2;
+
+ Arc * arc = new Arc(toolPoint[0], toolPoint[1].x, toolPoint[2].x, span);
+ arc->layer = Global::activeLayer;
+ document.objects.push_back(arc);
+ Global::toolState = TSNone;
+ }
+ }
+}
+
+
+void DrawingView::RotateHandler(int mode, Point p)
+{
+ switch (mode)
+ {
+ case ToolMouseDown:
+ if (Global::toolState == TSNone)
+ {
+ toolPoint[0] = p;
+ SavePointsFrom(select, toolScratch);
+ Global::toolState = TSPoint1;
+ }
+ else if (Global::toolState == TSPoint1)
+ toolPoint[0] = p;
+ else
+ toolPoint[1] = p;
+
+ break;
+ case ToolMouseMove:
+ if ((Global::toolState == TSPoint1) || (Global::toolState == TSNone))
+ toolPoint[0] = p;
+ else if (Global::toolState == TSPoint2)
+ {
+ toolPoint[1] = p;
+
+ if (shiftDown)
+ return;
+
+ double angle = Vector(toolPoint[0], toolPoint[1]).Angle();
+ std::vector<void *>::iterator j = select.begin();
+ std::vector<Object>::iterator i = toolScratch.begin();
+
+ for(; i!=toolScratch.end(); i++, j++)
+ {
+ Object obj = *i;
+ Point p1 = Geometry::RotatePointAroundPoint(obj.p[0], toolPoint[0], angle);
+ Point p2 = Geometry::RotatePointAroundPoint(obj.p[1], toolPoint[0], angle);
+ Object * obj2 = (Object *)(*j);
+ obj2->p[0] = p1;
+ obj2->p[1] = p2;
+
+ if (obj.type == OTArc)
+ {
+ obj2->angle[0] = obj.angle[0] + angle;
+
+ if (obj2->angle[0] > PI_TIMES_2)
+ obj2->angle[0] -= PI_TIMES_2;
+ }
+ }
+ }
+
+ break;
+ case ToolMouseUp:
+ if (Global::toolState == TSPoint1)
+ {
+ Global::toolState = TSPoint2;
+ // Prevent spurious line from drawing...
+ toolPoint[1] = toolPoint[0];
+ }
+ else if ((Global::toolState == TSPoint2) && shiftDown)
+ {
+ // Key override is telling us to make a new line, not continue the
+ // previous one.
+ toolPoint[0] = toolPoint[1];
+ }
+ else
+ {
+ // Either we're finished with our rotate, or we're stamping a copy.
+ if (ctrlDown)
+ {
+ // Stamp a copy of the selection at the current rotation & bail
+ std::vector<void *> temp;
+ CopyObjects(select, temp);
+ ClearSelected(temp);
+ AddObjectsTo(document.objects, temp);
+ RestorePointsTo(select, toolScratch);
+ return;
+ }
+
+ toolPoint[0] = p;
+ Global::toolState = TSPoint1;
+ SavePointsFrom(select, toolScratch);
+ }
+
+ break;
+ case ToolKeyDown:
+ // Reset the selection if shift held down...
+ if (shiftDown)
+ RestorePointsTo(select, toolScratch);
+
+ break;
+ case ToolKeyUp:
+ // Reset selection when key is let up
+ if (!shiftDown)
+ RotateHandler(ToolMouseMove, toolPoint[1]);
+
+ break;
+ case ToolCleanup:
+ RestorePointsTo(select, toolScratch);
+ }
+}
+
+
+void DrawingView::MirrorHandler(int mode, Point p)
+{
+ switch (mode)
+ {
+ case ToolMouseDown:
+ if (Global::toolState == TSNone)
+ {
+ toolPoint[0] = p;
+ SavePointsFrom(select, toolScratch);
+ Global::toolState = TSPoint1;
+ }
+ else if (Global::toolState == TSPoint1)
+ toolPoint[0] = p;
+ else
+ toolPoint[1] = p;
+
+ break;
+ case ToolMouseMove:
+ if ((Global::toolState == TSPoint1) || (Global::toolState == TSNone))
+ toolPoint[0] = p;
+ else if (Global::toolState == TSPoint2)
+ {
+ toolPoint[1] = p;
+
+ if (shiftDown)
+ return;
+
+ double angle = Vector(toolPoint[0], toolPoint[1]).Angle();
+ std::vector<void *>::iterator j = select.begin();
+ std::vector<Object>::iterator i = toolScratch.begin();
+
+ for(; i!=toolScratch.end(); i++, j++)
+ {
+ Object obj = *i;
+ Point p1 = Geometry::MirrorPointAroundLine(obj.p[0], toolPoint[0], toolPoint[1]);
+ Point p2 = Geometry::MirrorPointAroundLine(obj.p[1], toolPoint[0], toolPoint[1]);
+ Object * obj2 = (Object *)(*j);
+ obj2->p[0] = p1;
+ obj2->p[1] = p2;
+
+ if (obj.type == OTArc)
+ {
+ // This is 2*mirror angle - obj angle - obj span
+ obj2->angle[0] = (2.0 * angle) - obj.angle[0] - obj.angle[1];
+
+ if (obj2->angle[0] > PI_TIMES_2)
+ obj2->angle[0] -= PI_TIMES_2;
+ }
+ }
+ }
+
+ break;
+ case ToolMouseUp:
+ if (Global::toolState == TSPoint1)
+ {
+ Global::toolState = TSPoint2;
+ // Prevent spurious line from drawing...
+ toolPoint[1] = toolPoint[0];
+ }
+ else if ((Global::toolState == TSPoint2) && shiftDown)
+ {
+ // Key override is telling us to make a new line, not continue the
+ // previous one.
+ toolPoint[0] = toolPoint[1];
+ }
+ else
+ {
+ // Either we're finished with our rotate, or we're stamping a copy.
+ if (ctrlDown)
+ {
+ // Stamp a copy of the selection at the current rotation & bail
+ std::vector<void *> temp;
+ CopyObjects(select, temp);
+ ClearSelected(temp);
+ AddObjectsTo(document.objects, temp);
+ RestorePointsTo(select, toolScratch);
+ return;
+ }
+
+ toolPoint[0] = p;
+ Global::toolState = TSPoint1;
+ SavePointsFrom(select, toolScratch);
+ }
+
+ break;
+ case ToolKeyDown:
+ // Reset the selection if shift held down...
+ if (shiftDown)
+ RestorePointsTo(select, toolScratch);
+
+ break;
+ case ToolKeyUp:
+ // Reset selection when key is let up
+ if (!shiftDown)
+ MirrorHandler(ToolMouseMove, toolPoint[1]);
+
+ break;
+ case ToolCleanup:
+ RestorePointsTo(select, toolScratch);
+ }
+}
+
+
+void DrawingView::mousePressEvent(QMouseEvent * event)
+{
+ if (event->button() == Qt::LeftButton)
+ {
+ Vector point = Painter::QtToCartesianCoords(Vector(event->x(), event->y()));
+
+ // Handle tool processing, if any
+ if (Global::tool)
+ {
+ if (Global::snapToGrid)
+ point = SnapPointToGrid(point);
+
+ //Also, may want to figure out if hovering over a snap point on an object,
+ //snap to grid if not.
+ // Snap to object point if valid...
+// if (Global::snapPointIsValid)
+// point = Global::snapPoint;
+
+ ToolHandler(ToolMouseDown, point);
+ return;
+ }
+
+ // Clear the selection only if CTRL isn't being held on click
+ if (!ctrlDown)
+ ClearSelected(document.objects);
+// ClearSelection();
+
+ // If any objects are being hovered on click, add them to the selection
+ // & return
+ if (numHovered > 0)
+ {
+ AddHoveredToSelection();
+ update(); // needed??
+ GetHovered(hover); // prolly needed
+
+ // Needed for grab & moving objects
+ // We do it *after*... why? (doesn't seem to confer any advantage...)
+ if (Global::snapToGrid)
+ oldPoint = SnapPointToGrid(point);
+
+ return;
+ }
+
+ // Didn't hit any object and not using a tool, so do a selection rectangle
+ Global::selectionInProgress = true;
+ Global::selection.setTopLeft(QPointF(point.x, point.y));
+ Global::selection.setBottomRight(QPointF(point.x, point.y));
+ }
+ else if (event->button() == Qt::MiddleButton)
+ {
+ scrollDrag = true;
+ oldPoint = Vector(event->x(), event->y());
+ // Should also change the mouse pointer as well...
+ setCursor(Qt::SizeAllCursor);
+ }
+}
+
+
+void DrawingView::mouseMoveEvent(QMouseEvent * event)
+{
+ Vector point = Painter::QtToCartesianCoords(Vector(event->x(), event->y()));
+ Global::selection.setBottomRight(QPointF(point.x, point.y));
+ // Only needs to be done here, as mouse down is always preceded by movement
+ Global::snapPointIsValid = false;
+ hoveringIntersection = false;
+
+ // Scrolling...
+ if (event->buttons() & Qt::MiddleButton)
+ {
+ point = Vector(event->x(), event->y());
+ // Since we're using Qt coords for scrolling, we have to adjust them here to
+ // conform to Cartesian coords, since the origin is using Cartesian. :-)
+ Vector delta(oldPoint, point);
+ delta /= Global::zoom;
+ delta.y = -delta.y;
+ Global::origin -= delta;
+
+ UpdateGridBackground();
+ update();
+ oldPoint = point;
+ return;
+ }
+
+ // If we're doing a selection rect, see if any objects are engulfed by it
+ // (implies left mouse button held down)
+ if (Global::selectionInProgress)
+ {
+ CheckObjectBounds();
+ update();
+ return;
+ }
+
+ // Handle object movement (left button down & over an object)
+ if ((event->buttons() & Qt::LeftButton) && numHovered && !Global::tool)
+ {
+ if (Global::snapToGrid)
+ point = SnapPointToGrid(point);
+
+ HandleObjectMovement(point);
+ update();
+ oldPoint = point;
+ return;
+ }
+
+ // Do object hit testing...
+ bool needUpdate = HitTestObjects(point);
+
+ // Check for multi-hover...
+ if (numHovered > 1)
+ {
+ GetHovered(hover);
+
+// double t, u;
+// int numIntersecting = Geometry::Intersects((Object *)hover[0], (Object *)hover[1], &t, &u);
+ Geometry::Intersects((Object *)hover[0], (Object *)hover[1]);
+ int numIntersecting = Global::numIntersectParams;
+ double t = Global::intersectParam[0];
+ double u = Global::intersectParam[1];
+
+ if (numIntersecting > 0)
+ {
+ Vector v1 = Geometry::GetPointForParameter((Object *)hover[0], t);
+ Vector v2 = Geometry::GetPointForParameter((Object *)hover[1], u);
+ QString text = tr("Intersection t=%1 (%3, %4), u=%2 (%5, %6)");
+ informativeText = text.arg(t).arg(u).arg(v1.x).arg(v1.y).arg(v2.x).arg(v2.y);
+
+ hoveringIntersection = true;
+ intersectionPoint = v1;
+ }
+
+ numIntersecting = Global::numIntersectPoints;
+
+ if (numIntersecting > 0)
+ {
+ Vector v1 = Global::intersectPoint[0];
+ QString text = tr("Intersection <%1, %2>");
+ informativeText = text.arg(v1.x).arg(v1.y);
+
+ hoveringIntersection = true;
+ intersectionPoint = v1;
+ }
+ }
+
+ // Do tool handling, if any are active...
+ if (Global::tool)
+ {
+ if (Global::snapToGrid)
+ point = SnapPointToGrid(point);
+
+ ToolHandler(ToolMouseMove, point);
+ }
+
+ // This is used to draw the tool crosshair...
+ oldPoint = point;
+
+ if (needUpdate || Global::tool)
+ update();
+}
+
+
+void DrawingView::mouseReleaseEvent(QMouseEvent * event)
+{
+ if (event->button() == Qt::LeftButton)
+ {
+//We need to update especially if nothing collided and the state needs to change. !!! FIX !!!
+//could set it up to use the document's update function (assumes that all object updates
+//are being reported correctly:
+// if (document.NeedsUpdate())
+ // Do an update if collided with at least *one* object in the document
+// if (collided)
+ update();
+
+ if (Global::tool)
+ {
+ Vector point = Painter::QtToCartesianCoords(Vector(event->x(), event->y()));
+ ToolHandler(ToolMouseUp, point);
+ return;
+ }
+
+ if (Global::selectionInProgress)
+ Global::selectionInProgress = false;
+
+ informativeText.clear();
+// Should we be doing this automagically? Hmm...
+ // Clear our vectors
+ select.clear();
+ hover.clear();
+
+ // Scoop 'em up
+ std::vector<void *>::iterator i;
+
+ for(i=document.objects.begin(); i!=document.objects.end(); i++)
+ {
+ if (((Object *)(*i))->selected)
+ select.push_back(*i);
+
+//hmm, this is no good, too late to do any good :-P
+// if ((*i)->hovered)
+// hover.push_back(*i);
+ }
+ }
+ else if (event->button() == Qt::MiddleButton)
+ {
+ scrollDrag = false;
+ setCursor(Qt::ArrowCursor);
+ }
+}
+
+
+void DrawingView::wheelEvent(QWheelEvent * event)
+{
+ double zoomFactor = 1.25;
+ QSize sizeWin = size();
+ Vector center(sizeWin.width() / 2.0, sizeWin.height() / 2.0);
+ center = Painter::QtToCartesianCoords(center);
+
+ // This is not centering for some reason. Need to figure out why. :-/
+ if (event->delta() > 0)
+ {
+ Vector newOrigin = center - ((center - Global::origin) / zoomFactor);
+ Global::origin = newOrigin;
+ Global::zoom *= zoomFactor;
+ }
+ else
+ {
+ Vector newOrigin = center + ((-center + Global::origin) * zoomFactor);
+ Global::origin = newOrigin;
+ Global::zoom /= zoomFactor;
+ }
+
+// Global::gridSpacing = gridPixels / Painter::zoom;
+// UpdateGridBackground();
+ SetGridSize(Global::gridSpacing * Global::zoom);
+ update();
+// zoomIndicator->setText(QString("Grid: %1\", BU: Inch").arg(Global::gridSpacing));
+}
+
+
+void DrawingView::keyPressEvent(QKeyEvent * event)
+{
+ bool oldShift = shiftDown;
+ bool oldCtrl = ctrlDown;
+
+ if (event->key() == Qt::Key_Shift)
+ shiftDown = true;
+ else if (event->key() == Qt::Key_Control)
+ ctrlDown = true;
+
+ if ((oldShift != shiftDown) || (oldCtrl != ctrlDown))
+ {
+ if (Global::tool)
+ ToolHandler(ToolKeyDown, Point(0, 0));
+
+ update();
+ }
+}
+
+
+void DrawingView::keyReleaseEvent(QKeyEvent * event)
+{
+ bool oldShift = shiftDown;
+ bool oldCtrl = ctrlDown;
+
+ if (event->key() == Qt::Key_Shift)
+ shiftDown = false;
+ else if (event->key() == Qt::Key_Control)
+ ctrlDown = false;
+
+ if ((oldShift != shiftDown) || (oldCtrl != ctrlDown))
+ {
+ if (Global::tool)
+ ToolHandler(ToolKeyUp, Point(0, 0));
+
+ update();
+ }
+}
+
+
+//