X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdrawingview.cpp;h=943a9b9f4cd9edb088df0a5d8a75a9824512d4cd;hb=6533354910fbf76d9747deeae02b2e910ef9aa48;hp=a5349d98b8721da800da1f497055dd06f435b6d4;hpb=3b9b56d429a8a8733c8195e41f9b5e525b9b730d;p=architektonas diff --git a/src/drawingview.cpp b/src/drawingview.cpp index a5349d9..943a9b9 100644 --- a/src/drawingview.cpp +++ b/src/drawingview.cpp @@ -4,20 +4,23 @@ // (C) 2011 Underground Software // See the README and GPLv3 files for licensing and warranty information // -// JLH = James L. Hammons +// JLH = James Hammons // // Who When What -// --- ---------- ------------------------------------------------------------- +// --- ---------- ------------------------------------------------------------ // JLH 03/22/2011 Created this file +// JLH 09/29/2011 Added middle mouse button panning // // FIXED: // +// - Redo rendering code to *not* use Qt's transform functions, as they are tied +// to a left-handed system and we need a right-handed one. [DONE] // // STILL TO BE DONE: // -// - Redo rendering code to *not* use Qt's transform functions, as they are tied -// to a left-handed system and we need a right-handed one. +// - Lots of stuff +// - Layer locking (hiding works) // // Uncomment this for debugging... @@ -28,30 +31,32 @@ #include "drawingview.h" #include +#include "geometry.h" +#include "global.h" #include "mathconstants.h" - -#include "arc.h" -#include "circle.h" -#include "dimension.h" -#include "line.h" #include "painter.h" +#include "structs.h" +#include "utils.h" + + +#define BACKGROUND_MAX_SIZE 512 DrawingView::DrawingView(QWidget * parent/*= NULL*/): QWidget(parent), // The value in the settings file will override this. - useAntialiasing(true), - scale(1.0), offsetX(-10), offsetY(-10), - document(Vector(0, 0)), - gridSpacing(32.0), collided(false), rotateTool(false), rx(150.0), ry(150.0) + useAntialiasing(true), /*numSelected(0),*/ numHovered(0), shiftDown(false), + ctrlDown(false), + gridBackground(BACKGROUND_MAX_SIZE, BACKGROUND_MAX_SIZE), + scale(1.0), offsetX(-10), offsetY(-10), document(true), + gridPixels(0), collided(false), hoveringIntersection(false), + dragged(NULL), draggingObject(false), angleSnap(false) { +//wtf? doesn't work except in c++11??? document = { 0 }; setBackgroundRole(QPalette::Base); setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); -// toolPalette = new ToolWindow(); -// CreateCursors(); -// setCursor(cur[TOOLSelect]); -// setMouseTracking(true); - + Global::gridSpacing = 12.0; // In base units (inch is default) +#if 0 Line * line = new Line(Vector(5, 5), Vector(50, 40), &document); document.Add(line); document.Add(new Line(Vector(50, 40), Vector(10, 83), &document)); @@ -61,37 +66,269 @@ DrawingView::DrawingView(QWidget * parent/*= NULL*/): QWidget(parent), document.Add(new Arc(Vector(300, 300), 32, PI / 4.0, PI * 1.3, &document)), document.Add(new Arc(Vector(200, 200), 60, PI / 2.0, PI * 1.5, &document)); #if 1 - Dimension * dimension = new Dimension(Vector(0, 0), Vector(0, 0), &document); + Dimension * dimension = new Dimension(Vector(0, 0), Vector(0, 0), DTLinear, &document); line->SetDimensionOnLine(dimension); document.Add(dimension); #else // Alternate way to do the above... line->SetDimensionOnLine(); #endif +#else + Line * line = new Line;//(Vector(5, 5), Vector(50, 40), &document); + line->p[0] = Vector(5, 5); + line->p[1] = Vector(50, 40); + line->type = OTLine; + line->thickness = 2.0; + line->style = LSDash; + line->color = 0xFF7F00; + line->layer = 0; + document.objects.push_back(line); + document.objects.push_back(new Line(Vector(50, 40), Vector(10, 83))); + document.objects.push_back(new Line(Vector(10, 83), Vector(17, 2))); + document.objects.push_back(new Circle(Vector(100, 100), 36)); + document.objects.push_back(new Circle(Vector(50, 150), 49)); + document.objects.push_back(new Arc(Vector(300, 300), 32, TAU / 8.0, TAU * 0.65)), + document.objects.push_back(new Arc(Vector(200, 200), 60, TAU / 4.0, TAU * 0.75)); + document.objects.push_back(new Dimension(Vector(50, 40), Vector(5, 5))); + document.objects.push_back(new Text(Vector(10, 83), "Here is some awesome text!")); +#endif + +/* +Here we set the grid size in pixels--12 in this case. Initially, we have our +zoom set to make this represent 12 inches at a zoom factor of 25%. (This is +arbitrary.) So, to be able to decouple the grid size from the zoom, we need +to be able to set the size of the background grid (which we do here at an +arbitrary 12 pixels) to anything we want (within reason, of course :-). + +The drawing enforces the grid spacing through the drawing->gridSpacing variable. + + drawing->gridSpacing = 12.0 / Global::zoom; + +Global::zoom is the zoom factor for the drawing, and all mouse clicks are +translated to Cartesian coordinates through this. (Initially, Global::zoom is +set to 1.0. SCREEN_ZOOM is set to 1.0/4.0.) + +Really, the 100% zoom level can be set at *any* zoom level, it's more of a +convenience function than any measure of absolutes. Doing things that way we +could rid ourselves of the whole SCREEN_ZOOM parameter and all the attendant +shittiness that comes with it. + +However, it seems that SCREEN_ZOOM is used to make text and arrow sizes show up +a certain way, which means we should probably create something else in those +objects to take its place--like some kind of scale factor. This would seem to +imply that certain point sizes actually *do* tie things like fonts to absolute +sizes on the screen, but not necessarily because you could have an inch scale +with text that is quite small relative to other objects on the screen, which +currently you have to zoom in to see (and which blows up the text). Point sizes +in an application like this are a bit meaningless; even though an inch is an +inch regardless of the zoom level a piece of text can be larger or smaller than +this. Maybe this is the case for having a base unit and basing point sizes off +of that. + +Here's what's been figured out. Global::zoom is simply the ratio of pixels to +base units. What that means is that if you have a 12px grid with a 6" grid size +(& base unit of "inches"), Global::zoom becomes 12px / 6" = 2.0 px/in. + +Dimensions now have a "size" parameter to set their absolute size in relation +to the base unit. ATM, the arrows are drawn in pixels, but also scaled by +Global::zoom *and* size. Same with the dimension text; it's drawn at 10pt and +scaled the same way as the arrowheads. + +Need a way to scale line widths as well. :-/ Shouldn't be too difficult, just +need a thickness parameter similar to the "size" param for dimensions. (And now +we do! :-) + +*/ + SetGridSize(12); // This is in pixels +} + + +void DrawingView::SetGridSize(uint32_t size) +{ + // Sanity check + if (size == gridPixels) + return; + + // Recreate the background bitmap + gridPixels = size; + QPainter pmp(&gridBackground); + pmp.fillRect(0, 0, BACKGROUND_MAX_SIZE, BACKGROUND_MAX_SIZE, QColor(240, 240, 240)); + pmp.setPen(QPen(QColor(210, 210, 255), 2.0, Qt::SolidLine)); + + for(int i=0; i<(BACKGROUND_MAX_SIZE-1); i+=gridPixels) + { + pmp.drawLine(i, 0, i, BACKGROUND_MAX_SIZE - 1); + pmp.drawLine(0, i, BACKGROUND_MAX_SIZE - 1, i); + } + + pmp.end(); + + // Set up new BG brush & zoom level (pixels per base unit) + Global::zoom = gridPixels / Global::gridSpacing; + UpdateGridBackground(); +} + + +void DrawingView::UpdateGridBackground(void) +{ + // Transform the origin to Qt coordinates + Vector pixmapOrigin = Painter::CartesianToQtCoords(Vector()); + int x = (int)pixmapOrigin.x; + int y = (int)pixmapOrigin.y; + // Use mod arithmetic to grab the correct swatch of background +/* +Negative numbers still screw it up... Need to think about what we're +trying to do here. The fact that it worked with 72 seems to have been pure luck. +It seems the problem is negative numbers: We can't let that happen. +When taking away the zero, it pops over 1 px at zero, then goes about 1/2 a +grid at x<0. + +The bitmap looks like this: + ++---+---+---+---+--- +| | | | | +| | | | | ++---+---+---+---+--- +| | | | | +| | | | | +| | | | | + +@ x = 1, we want it to look like: + +-+---+---+---+---+--- + | | | | | + | | | | | +-+---+---+---+---+--- + | | | | | + | | | | | + | | | | | + +Which means we need to grab the sample from x = 3. @ x = -1: + +---+---+---+---+--- + | | | | + | | | | +---+---+---+---+--- + | | | | + | | | | + | | | | + +Which means we need to grab the sample from x = 1. Which means we have to take +the mirror of the modulus of gridPixels. + +Doing a mod of a negative number is problematic: 1st, the compiler converts the +negative number to an unsigned int, then it does the mod. Gets you wrong answers +most of the time, unless you use a power of 2. :-P So what we do here is just +take the modulus of the negation, which means we don't have to worry about +mirroring it later. + +The positive case looks gruesome (and it is) but it boils down to this: We take +the modulus of the X coordinate, then mirror it by subtraction from the +maximum (in this case, gridPixels). This gives us a number in the range of 1 to +gridPixels. But we need the case where the result equalling gridPixels to be +zero; so we do another modulus operation on the result to achieve this. +*/ + if (x < 0) + x = -x % gridPixels; + else + x = (gridPixels - (x % gridPixels)) % gridPixels; + + if (y < 0) + y = -y % gridPixels; + else + y = (gridPixels - (y % gridPixels)) % gridPixels; + + // Here we grab a section of the bigger pixmap, so that the background + // *looks* like it's scrolling... + QPixmap pm = gridBackground.copy(x, y, gridPixels, gridPixels); + QPalette pal = palette(); + pal.setBrush(backgroundRole(), QBrush(pm)); + setAutoFillBackground(true); + setPalette(pal); +} + + +// +// Basically, we just make a single pass through the Container. If the layer # +// is less than the layer # being deleted, then do nothing. If the layer # is +// equal to the layer # being deleted, then delete the object. If the layer # +// is greater than the layer # being deleted, then set the layer # to its layer +// # - 1. +// +void DrawingView::DeleteCurrentLayer(int layer) +{ +//printf("DrawingView::DeleteCurrentLayer(): currentLayer = %i\n", layer); + std::vector::iterator i = document.objects.begin(); + + while (i != document.objects.end()) + { + Object * obj = (Object *)(*i); + + if (obj->layer < layer) + i++; + else if (obj->layer == layer) + { + document.objects.erase(i); + delete obj; + } + else + { + obj->layer--; + i++; + } + } + + // We've just done a destructive action, so update the screen! + update(); } -void DrawingView::SetRotateToolActive(bool state/*= true*/) + +void DrawingView::HandleLayerToggle(void) { - rotateTool = state; + // A layer's visibility was toggled, so update the screen... update(); } + +// +// A layer was moved up or down in the layer list, so we have to swap the +// document's object's layer numbers in the layers that were swapped. +// +void DrawingView::HandleLayerSwap(int layer1, int layer2) +{ +//printf("DrawingView: Swapping layers %i and %i.\n", layer1, layer2); + std::vector::iterator i; + + for(i=document.objects.begin(); i!=document.objects.end(); i++) + { + Object * obj = (Object *)(*i); + + if (obj->layer == layer1) + obj->layer = layer2; + else if (obj->layer == layer2) + obj->layer = layer1; + } +} + + QPoint DrawingView::GetAdjustedMousePosition(QMouseEvent * event) { - // This is undoing the transform, e.g. going from client coords to local coords. - // In essence, the height - y is height + (y * -1), the (y * -1) term doing the - // conversion of the y-axis from increasing bottom to top. + // This is undoing the transform, e.g. going from client coords to local + // coords. In essence, the height - y is height + (y * -1), the (y * -1) + // term doing the conversion of the y-axis from increasing bottom to top. return QPoint(offsetX + event->x(), offsetY + (size().height() - event->y())); } + QPoint DrawingView::GetAdjustedClientPosition(int x, int y) { // VOODOO ALERT (ON Y COMPONENT!!!!) (eh?) // No voodoo here, it's just grouped wrong to see it. It should be: - // -offsetY + (size.height() + (y * -1.0)) <-- this is wrong, offsetY should be positive + // -offsetY + (size.height() + (y * -1.0)) <-- this is wrong, offsetY should be positive [why? we use -offsetX after all] return QPoint(-offsetX + x, (size().height() - (-offsetY + y)) * +1.0); } + void DrawingView::paintEvent(QPaintEvent * /*event*/) { QPainter qtPainter(this); @@ -100,615 +337,1834 @@ void DrawingView::paintEvent(QPaintEvent * /*event*/) if (useAntialiasing) qtPainter.setRenderHint(QPainter::Antialiasing); - Painter::screenSize = Vector(size().width(), size().height()); - Painter::zoom = 2.0; // 200% zoom -#if 0 -#if 0 - painter.translate(QPoint(-offsetX, size.height() - (-offsetY))); - painter.scale(1.0, -1.0); -#else - QTransform transform; -//order of operations is important! N.B.: Can't use scaling other than 1.0, it -//causes lines to look strange (i.e., it scales the pen strokes too) -// transform.translate(-offsetX, size().height() - (-offsetY)); - transform.scale(1.0, -1.0); - transform.translate(-offsetX, -size().height() - offsetY); -// transform.scale(0.25, 0.25); - painter.setTransform(transform); -#endif -#endif - Object::SetViewportHeight(size().height()); + Global::viewportHeight = size().height(); // Draw coordinate axes - painter.SetPen(QPen(Qt::blue, 1.0, Qt::DotLine)); painter.DrawLine(0, -16384, 0, 16384); painter.DrawLine(-16384, 0, 16384, 0); - // Draw supplemental (tool related) points - - if (rotateTool) + // Do object rendering... + for(int i=0; ibutton() == Qt::LeftButton) + // Do tool rendering, if any... + if (Global::tool) { -// QPoint pt = GetAdjustedMousePosition(event); -// Vector point(pt.x(), pt.y()); - Vector point = Painter::QtToCartesianCoords(Vector(event->x(), event->y())); - - collided = document.Collided(point); - - if (collided) - update(); // Do an update if collided with at least *one* object in the document + painter.SetPen(QPen(QColor(200, 100, 0, 255), 1.0, Qt::DashLine)); + painter.DrawCrosshair(oldPoint); + ToolDraw(&painter); } -} - -void DrawingView::mouseMoveEvent(QMouseEvent * event) -{ -// QPoint pt = GetAdjustedMousePosition(event); -// Vector point(pt.x(), pt.y()); - Vector point = Painter::QtToCartesianCoords(Vector(event->x(), event->y())); - // Grid processing... -#if 1 - // This looks strange, but it's really quite simple: We want a point that's - // more than half-way to the next grid point to snap there while conversely - // we want a point that's less than half-way to to the next grid point then - // snap to the one before it. So we add half of the grid spacing to the - // point, then divide by it so that we can remove the fractional part, then - // multiply it back to get back to the correct answer. - if (event->buttons() & Qt::LeftButton) - { - point += gridSpacing / 2.0; // *This* adds to Z!!! - point /= gridSpacing; - point.x = floor(point.x);//need to fix this for negative numbers... - point.y = floor(point.y); - point.z = 0; // Make *sure* Z doesn't go anywhere!!! - point *= gridSpacing; + // Do selection rectangle rendering, if any + if (Global::selectionInProgress) + { + painter.SetPen(QPen(QColor(255, 127, 0, 255))); + painter.SetBrush(QBrush(QColor(255, 127, 0, 100))); + painter.DrawRect(Global::selection); } -#endif -//we should keep track of the last point here and only pass this down *if* the point -//changed... - document.PointerMoved(point); - if (document.NeedsUpdate()) - update(); + if (hoveringIntersection) + painter.DrawHandle(intersectionPoint); + + if (!informativeText.isEmpty()) + painter.DrawInformativeText(informativeText); } -void DrawingView::mouseReleaseEvent(QMouseEvent * event) + +// +// Renders objects in the passed in vector +// +void DrawingView::RenderObjects(Painter * painter, std::vector & v, int layer, bool ignoreLayer/*= false*/) { - if (event->button() == Qt::LeftButton) + std::vector::iterator i; + + for(i=v.begin(); i!=v.end(); i++) { - document.PointerReleased(); + Object * obj = (Object *)(*i); + float scaledThickness = Global::scale * obj->thickness; -//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()) -// if (collided) - update(); // Do an update if collided with at least *one* object in the document - } -} + // If the object isn't on the current layer being drawn, skip it + if (!ignoreLayer && (obj->layer != layer)) + continue; + if ((Global::tool == TTRotate) && ctrlDown && obj->selected) + { + painter->SetPen(0x00FF00, 2.0, LSSolid); + } + else + { + painter->SetPen(obj->color, Global::zoom * scaledThickness, obj->style); + painter->SetBrush(obj->color); -#if 0 -QSize DrawingView::minimumSizeHint() const -{ - return QSize(50, 50); -} + if (obj->selected || obj->hitObject) + painter->SetPen(0xFF0000, Global::zoom * scaledThickness, LSDash); + } -QSize DrawingView::sizeHint() const -{ - return QSize(400, 400); -} + switch (obj->type) + { + case OTLine: + painter->DrawLine(obj->p[0], obj->p[1]); -void DrawingView::CreateCursors(void) -{ - int hotx[8] = { 1, 1, 11, 15, 1, 1, 1, 1 }; - int hoty[8] = { 1, 1, 11, 13, 1, 1, 1, 1 }; + if (obj->hitPoint[0]) + painter->DrawHandle(obj->p[0]); - for(int i=0; i<8; i++) - { - QString s; - s.sprintf(":/res/cursor%u.png", i+1); - QPixmap pmTmp(s); - cur[i] = QCursor(pmTmp, hotx[i], hoty[i]); - } -} + if (obj->hitPoint[1]) + painter->DrawHandle(obj->p[1]); -/* -TODO: - o Different colors for polys on selected points - o Different colors for handles on non-selected polys - o Line of sight (dashed, dotted) for off-curve points - o Repaints for press/release of CTRL/SHIFT during point creation -*/ -void DrawingView::paintEvent(QPaintEvent * /*event*/) -{ - QPainter p(this); -//hm, causes lockup -// p.setRenderHint(QPainter::Antialiasing); -//Doesn't do crap! -//dc.SetBackground(*wxWHITE_BRUSH); + break; + case OTCircle: + painter->SetBrush(QBrush(Qt::NoBrush)); + painter->DrawEllipse(obj->p[0], obj->radius[0], obj->radius[0]); -// Due to the screwiness of wxWidgets coord system, the origin is ALWAYS -// the upper left corner--regardless of axis orientation, etc... -// int width, height; -// dc.GetSize(&width, &height); - QSize winSize = size(); + if (obj->hitPoint[0]) + painter->DrawHandle(obj->p[0]); -// dc.SetDeviceOrigin(-offsetX, height - (-offsetY)); -// dc.SetAxisOrientation(true, true); - p.translate(QPoint(-offsetX, winSize.height() - (-offsetY))); - p.scale(1.0, -1.0); + break; + case OTArc: + painter->DrawArc(obj->p[0], obj->radius[0], obj->angle[0], obj->angle[1]); -// Scrolling can be done by using OffsetViewportOrgEx -// Scaling can be done by adjusting SetWindowExtEx (it's denominator of txform) -// you'd use: % = ViewportExt / WindowExt -// But it makes the window look like crap: fuggetuboutit. -// Instead, we have to scale EVERYTHING by hand. Crap! -// It's not *that* bad, but not as convenient either... + if (obj->hitPoint[0]) + painter->DrawHandle(obj->p[0]); -// dc.SetPen(*(wxThePenList->FindOrCreatePen(wxColour(0x00, 0x00, 0xFF), 1, wxDOT))); -//// dc.DrawLine(0, 0, 10, 10); - p.setPen(QPen(Qt::blue, 1.0, Qt::DotLine)); + if (obj->hitPoint[1]) + painter->DrawHandle(obj->p[0] + (Vector(cos(obj->angle[0]), sin(obj->angle[0])) * obj->radius[0])); - // Draw coordinate axes + if (obj->hitPoint[2]) + painter->DrawHandle(obj->p[0] + (Vector(cos(obj->angle[0] + obj->angle[1]), sin(obj->angle[0] + obj->angle[1])) * obj->radius[0])); -// dc.CrossHair(0, 0); - p.drawLine(0, -16384, 0, 16384); - p.drawLine(-16384, 0, 16384, 0); + break; + case OTDimension: + { + Dimension * d = (Dimension *)obj; - // Draw points + Vector v(d->p[0], d->p[1]); + double angle = v.Angle(); + Vector unit = v.Unit(); + d->lp[0] = d->p[0], d->lp[1] = d->p[1]; + Vector ortho; + double x1, y1, length; - for(int i=0; iFindOrCreatePen(wxColour(0xFF, 0x00, 0x00), 1, wxSOLID))); -//// SelectObject(hdc, hRedPen1); - p.setPen(QPen(Qt::red, 1.0, Qt::SolidLine)); + if (d->subtype == DTLinearVert) + { + if ((angle < 0) || (angle > HALF_TAU)) + { + x1 = (d->p[0].x > d->p[1].x ? d->p[0].x : d->p[1].x); + y1 = (d->p[0].y > d->p[1].y ? d->p[0].y : d->p[1].y); + ortho = Vector(1.0, 0); + angle = THREE_QTR_TAU; + } + else + { + x1 = (d->p[0].x > d->p[1].x ? d->p[1].x : d->p[0].x); + y1 = (d->p[0].y > d->p[1].y ? d->p[1].y : d->p[0].y); + ortho = Vector(-1.0, 0); + angle = QTR_TAU; + } - if (pts.GetOnCurve(i)) + d->lp[0].x = d->lp[1].x = x1; + length = fabs(d->p[0].y - d->p[1].y); + } + else if (d->subtype == DTLinearHorz) { - DrawSquareDotN(p, pts.GetX(i), pts.GetY(i), 7); - DrawSquareDotN(p, pts.GetX(i), pts.GetY(i), 9); + if ((angle < QTR_TAU) || (angle > THREE_QTR_TAU)) + { + x1 = (d->p[0].x > d->p[1].x ? d->p[0].x : d->p[1].x); + y1 = (d->p[0].y > d->p[1].y ? d->p[0].y : d->p[1].y); + ortho = Vector(0, 1.0); + angle = 0; + } + else + { + x1 = (d->p[0].x > d->p[1].x ? d->p[1].x : d->p[0].x); + y1 = (d->p[0].y > d->p[1].y ? d->p[1].y : d->p[0].y); + ortho = Vector(0, -1.0); + angle = HALF_TAU; + } + + d->lp[0].y = d->lp[1].y = y1; + length = fabs(d->p[0].x - d->p[1].x); } - else + else if (d->subtype == DTLinear) { - DrawRoundDotN(p, pts.GetX(i), pts.GetY(i), 7); - DrawRoundDotN(p, pts.GetX(i), pts.GetY(i), 9); + angle = Vector(d->lp[0], d->lp[1]).Angle(); + ortho = Vector::Normal(d->lp[0], d->lp[1]); + length = v.Magnitude(); } - } - else if ((i == ptHighlight || i == ptNextHighlight) && tool == TOOLAddPt) - { -// dc.SetPen(*(wxThePenList->FindOrCreatePen(wxColour(0x00, 0xAF, 0x00), 1, wxSOLID))); -//// SelectObject(hdc, hGreenPen1); - p.setPen(QPen(Qt::green, 1.0, Qt::SolidLine)); - if (pts.GetOnCurve(i)) + unit = Vector(d->lp[0], d->lp[1]).Unit(); + + Point p1 = d->lp[0] + (ortho * 10.0 * scaledThickness); + Point p2 = d->lp[1] + (ortho * 10.0 * scaledThickness); + Point p3 = d->lp[0] + (ortho * 16.0 * scaledThickness); + Point p4 = d->lp[1] + (ortho * 16.0 * scaledThickness); + Point p5 = d->p[0] + (ortho * 4.0 * scaledThickness); + Point p6 = d->p[1] + (ortho * 4.0 * scaledThickness); + + /* + The numbers hardcoded into here, what are they? + I believe they are pixels. + */ + // Draw extension lines (if certain type) + painter->DrawLine(p3, p5); + painter->DrawLine(p4, p6); + + // Calculate whether or not the arrowheads are too crowded to put + // inside the extension lines. 9.0 is the length of the arrowhead. + double t = Geometry::ParameterOfLineAndPoint(d->lp[0], d->lp[1], d->lp[1] - (unit * 9.0 * scaledThickness)); + + // On the screen, it's acting like this is actually 58%... + // This is correct, we want it to happen at > 50% + if (t > 0.58) { - DrawSquareDotN(p, pts.GetX(i), pts.GetY(i), 7); - DrawSquareDotN(p, pts.GetX(i), pts.GetY(i), 9); + // Draw main dimension line + arrowheads + painter->DrawLine(p1, p2); + painter->DrawArrowhead(p1, p2, scaledThickness); + painter->DrawArrowhead(p2, p1, scaledThickness); } else { - DrawRoundDotN(p, pts.GetX(i), pts.GetY(i), 7); - DrawRoundDotN(p, pts.GetX(i), pts.GetY(i), 9); + // Draw outside arrowheads + Point p7 = p1 - (unit * 9.0 * scaledThickness); + Point p8 = p2 + (unit * 9.0 * scaledThickness); + painter->DrawArrowhead(p1, p7, scaledThickness); + painter->DrawArrowhead(p2, p8, scaledThickness); + painter->DrawLine(p1, p1 - (unit * 14.0 * scaledThickness)); + painter->DrawLine(p2, p2 + (unit * 14.0 * scaledThickness)); } - } - else - { -// dc.SetPen(*(wxThePenList->FindOrCreatePen(wxColour(0x00, 0x00, 0x00), 1, wxSOLID))); -//// SelectObject(hdc, hBlackPen1); - p.setPen(QPen(Qt::black, 1.0, Qt::SolidLine)); - - if (pts.GetOnCurve(i)) - DrawSquareDot(p, pts.GetX(i), pts.GetY(i)); - else - DrawRoundDot(p, pts.GetX(i), pts.GetY(i)); - } - - if (tool == TOOLDelPt && i == ptHighlight) - { -#if 0 - dc.SetPen(*(wxThePenList->FindOrCreatePen(wxColour(0xFF, 0x00, 0x00), 1, wxSOLID))); -// SelectObject(hdc, hRedPen1); -// MoveToEx(hdc, pts.GetX(i) - 5, pts.GetY(i) - 5, NULL); -// LineTo(hdc, pts.GetX(i) + 5, pts.GetY(i) + 5); -// LineTo(hdc, pts.GetX(i) - 5, pts.GetY(i) - 5);//Lameness! -// MoveToEx(hdc, pts.GetX(i) - 5, pts.GetY(i) + 5, NULL); -// LineTo(hdc, pts.GetX(i) + 5, pts.GetY(i) - 5); -// LineTo(hdc, pts.GetX(i) - 5, pts.GetY(i) + 5);//More lameness!! -#endif - p.setPen(QPen(Qt::red, 1.0, Qt::SolidLine)); - p.drawLine(pts.GetX(i) - 5, pts.GetY(i) - 5, pts.GetX(i) + 5, pts.GetY(i) + 5); - p.drawLine(pts.GetX(i) + 5, pts.GetY(i) - 5, pts.GetX(i) - 5, pts.GetY(i) + 5); - } - } -//// SelectObject(hdc, hBlackPen1); -// dc.SetPen(*(wxThePenList->FindOrCreatePen(wxColour(0x00, 0x00, 0x00), 1, wxSOLID))); - p.setPen(QPen(Qt::black, 1.0, Qt::SolidLine)); + // Draw length of dimension line... + painter->SetFont(QFont("Arial", 8.0 * Global::zoom * scaledThickness)); + Point ctr = p2 + (Vector(p2, p1) / 2.0); - // Draw curve formed by points + QString dimText; - for(int poly=0; poly 2) - { - // Initial move... - // If it's not on curve, then move to it, otherwise move to last point... + if (length < 12.0) + dimText = QString("%1\"").arg(length); + else + { + double feet = (double)((int)length / 12); + double inches = length - (feet * 12.0); - int x, y; + if (inches == 0) + dimText = QString("%1'").arg(feet); + else + dimText = QString("%1' %2\"").arg(feet).arg(inches); + } - if (pts.GetOnCurve(poly, pts.GetNumPoints(poly) - 1)) - x = (int)pts.GetX(poly, pts.GetNumPoints(poly) - 1), y = (int)pts.GetY(poly, pts.GetNumPoints(poly) - 1); - else - x = (int)pts.GetX(poly, 0), y = (int)pts.GetY(poly, 0); + painter->DrawAngledText(ctr, angle, dimText, scaledThickness); - for(int i=0; ihitObject) { - if (pts.GetOnCurve(poly, i)) -// LineTo(hdc, pts.GetX(poly, i), pts.GetY(poly, i)); + Point hp1 = (p1 + p2) / 2.0; + Point hp2 = (p1 + hp1) / 2.0; + Point hp3 = (hp1 + p2) / 2.0; + + if (d->hitPoint[2]) { - p.drawLine(x, y, pts.GetX(poly, i), pts.GetY(poly, i)); - x = (int)pts.GetX(poly, i), y = (int)pts.GetY(poly, i); + painter->SetPen(QPen(Qt::magenta, 1.0, Qt::SolidLine)); + painter->SetBrush(QBrush(QColor(Qt::magenta))); + painter->DrawArrowHandle(hp1, ortho.Angle() + HALF_TAU); + painter->SetPen(QPen(Qt::magenta, 2.0, Qt::DotLine)); } - else - { - uint32 prev = pts.GetPrev(poly, i), next = pts.GetNext(poly, i); - float px = pts.GetX(poly, prev), py = pts.GetY(poly, prev), - nx = pts.GetX(poly, next), ny = pts.GetY(poly, next); - if (!pts.GetOnCurve(poly, prev)) - px = (px + pts.GetX(poly, i)) / 2.0f, - py = (py + pts.GetY(poly, i)) / 2.0f; + painter->DrawHandle(hp1); + painter->SetPen(QPen(Qt::blue, 1.0 * Global::zoom * scaledThickness, Qt::SolidLine)); - if (!pts.GetOnCurve(poly, next)) - nx = (nx + pts.GetX(poly, i)) / 2.0f, - ny = (ny + pts.GetY(poly, i)) / 2.0f; + if (d->hitPoint[3]) + { + painter->SetPen(QPen(Qt::magenta, 1.0, Qt::SolidLine)); + painter->SetBrush(QBrush(QColor(Qt::magenta))); + painter->DrawArrowToLineHandle(hp2, (d->subtype == DTLinearVert ? v.Angle() - QTR_TAU : (v.Angle() < HALF_TAU ? HALF_TAU : 0))); + painter->SetPen(QPen(Qt::magenta, 2.0, Qt::DotLine)); + } - Bezier(p, point(px, py), point(pts.GetX(poly, i), pts.GetY(poly, i)), point(nx, ny)); - x = (int)nx, y = (int)ny; + painter->DrawHandle(hp2); + painter->SetPen(QPen(Qt::blue, 1.0 * Global::zoom * scaledThickness, Qt::SolidLine)); - if (pts.GetOnCurve(poly, next)) - i++; // Following point is on curve, so move past it + if (d->hitPoint[4]) + { + painter->SetPen(QPen(Qt::magenta, 1.0, Qt::SolidLine)); + painter->SetBrush(QBrush(QColor(Qt::magenta))); + painter->DrawArrowToLineHandle(hp3, (d->subtype == DTLinearHorz ? v.Angle() - QTR_TAU : (v.Angle() > HALF_TAU && v.Angle() < THREE_QTR_TAU ? THREE_QTR_TAU : QTR_TAU))); + painter->SetPen(QPen(Qt::magenta, 2.0, Qt::DotLine)); } + + painter->DrawHandle(hp3); } - } - } -} -void DrawingView::mousePressEvent(QMouseEvent * event) -{ - if (event->button() == Qt::RightButton) - { - toolPalette->move(event->globalPos()); - toolPalette->setVisible(true); - setCursor(cur[TOOLSelect]); - toolPalette->prevTool = TOOLSelect; - } - else if (event->button() == Qt::MidButton) - { - setCursor(cur[2]); // Scrolling cursor - } - else if (event->button() == Qt::LeftButton) - { - if (tool == TOOLScroll || tool == TOOLZoom) -;//meh CaptureMouse(); // Make sure we capture the mouse when in scroll/zoom mode - else if (tool == TOOLAddPt) // "Add Point" tool + if (obj->hitPoint[0]) + painter->DrawHandle(obj->p[0]); + + if (obj->hitPoint[1]) + painter->DrawHandle(obj->p[1]); + + break; + } + case OTText: { - if (pts.GetNumPoints() > 0) - { - QPoint pt = GetAdjustedMousePosition(event); - pts.InsertPoint(pts.GetNext(ptHighlight), pt.x(), pt.y(), ((event->modifiers() == Qt::ShiftModifier || event->modifiers() == Qt::ControlModifier) ? false : true)); - ptHighlight = ptNextHighlight; - update(); - } + Text * t = (Text *)obj; + painter->DrawTextObject(t->p[0], t->s.c_str(), scaledThickness); + break; } - else if (tool == TOOLAddPoly) // "Add Poly" tool + case OTSpline: { -#ifdef DEBUGFOO -WriteLogMsg("Adding point... # polys: %u, # points: %u", pts.GetNumPolys(), pts.GetNumPoints()); -#endif - if (polyFirstPoint) - { - polyFirstPoint = false; - pts.AddNewPolyAtEnd(); - } - - QPoint pt = GetAdjustedMousePosition(event); -//printf("GetAdjustedMousePosition = %i, %i\n", pt.x(), pt.y()); - // Append a point to the end of the structure - pts += IPoint(pt.x(), pt.y(), ((event->modifiers() == Qt::ShiftModifier || event->modifiers() == Qt::ControlModifier) ? false : true)); - ptHighlight = pts.GetNumPoints() - 1; - update(); -#ifdef DEBUGFOO -WriteLogMsg(" --> [# polys: %u, # points: %u]\n", pts.GetNumPolys(), pts.GetNumPoints()); -#endif + break; } - else if (tool == TOOLSelect || tool == TOOLPolySelect) + case OTPolygon: { - if (pts.GetNumPoints() > 0) - { - pt = GetAdjustedClientPosition(pts.GetX(ptHighlight), pts.GetY(ptHighlight)); -//printf("GetAdjustedClientPosition = %i, %i\n", pt.x(), pt.y()); -// WarpPointer(pt.x, pt.y); - QCursor::setPos(mapToGlobal(pt)); - - if (event->modifiers() == Qt::ShiftModifier || event->modifiers() == Qt::ControlModifier) - { - pts.SetOnCurve(ptHighlight, !pts.GetOnCurve(ptHighlight)); - update(); - } - } + break; } - else if (tool == TOOLDelPt) + case OTContainer: { - if (pts.GetNumPoints() > 0) -//Or could use: -// if (ptHighlight != -1) + // Containers require recursive rendering... + Container * c = (Container *)obj; + RenderObjects(painter, (*c).objects, layer); + +//printf("Container extents: <%lf, %lf>, <%lf, %lf>\nsize: %i\n", r.l, r.t, r.r, r.b, c->objects.size()); + // Containers also have special indicators showing they are selected + if (c->selected || c->hitObject) { -//This assumes that WM_MOUSEMOVE happens before this! -//The above commented out line should take care of this contingency... !!! FIX !!! - pts.DeletePoint(ptHighlight); - update(); + Rect r = GetObjectExtents(obj); + painter->DrawRectCorners(r); } + + break; + } + default: + break; } } - - event->accept(); } -void DrawingView::mouseMoveEvent(QMouseEvent * event) + +void DrawingView::AddHoveredToSelection(void) { - if (event->buttons() == Qt::RightButton) - { - ToolType newTool = toolPalette->FindSelectedTool(); + std::vector::iterator i; - if (newTool != toolPalette->prevTool) - { - toolPalette->prevTool = newTool; - toolPalette->repaint(); - } - } - else if (event->buttons() == Qt::MidButton) + for(i=document.objects.begin(); i!=document.objects.end(); i++) { - // Calc offset from previous point - pt = event->pos(); - ptOffset = QPoint(pt.x() - ptPrevious.x(), pt.y() - ptPrevious.y()); - -// Then multiply it by the scaling factor. Whee! - // This looks wacky because we're using screen coords for the offset... - // Otherwise, we would subtract both offsets! - offsetX -= ptOffset.x(), offsetY += ptOffset.y(); - update(); - ptPrevious = pt; + if (((Object *)(*i))->hovered) + ((Object *)(*i))->selected = true; } - else if (event->buttons() == Qt::LeftButton) +} + + +void DrawingView::GetSelection(std::vector & v) +{ + v.clear(); + std::vector::iterator i; + + for(i=document.objects.begin(); i!=document.objects.end(); i++) { -#if 0 - if (tool == TOOLScroll) - { - // Extract current point from lParam/calc offset from previous point - - pt = e.GetPosition(); - ptOffset.x = pt.x - ptPrevious.x, - ptOffset.y = pt.y - ptPrevious.y; - - // NOTE: OffsetViewportOrg operates in DEVICE UNITS... - -//Seems there's no equivalent for this in wxWidgets...! -//!!! FIX !!! -// hdc = GetDC(hWnd); -// OffsetViewportOrgEx(hdc, ptOffset.x, ptOffset.y, NULL); -// ReleaseDC(hWnd, hdc); - -// this shows that it works, so the logic above must be faulty... -// And it is. It should convert the coords first, then do the subtraction to figure the offset... -// Above: DONE -// Then multiply it by the scaling factor. Whee! - // This looks wacky because we're using screen coords for the offset... - // Otherwise, we would subtract both offsets! - offsetX -= ptOffset.x, offsetY += ptOffset.y; - Refresh(); - } - else -#endif - if (tool == TOOLAddPt || tool == TOOLAddPoly || tool == TOOLSelect) - { - if (tool != TOOLAddPt || pts.GetNumPoints() > 0)//yecch. - { -//temporary, for testing. BTW, Select drag bug is here...! -#if 1 - QPoint pt2 = GetAdjustedMousePosition(event); - pts.SetXY(ptHighlight, pt2.x(), pt2.y()); - update(); -#endif - } - } - else if (tool == TOOLPolySelect) - { - if (pts.GetNumPoints() > 0) - { - QPoint pt2 = GetAdjustedMousePosition(event); - // Should also set onCurve here as well, depending on keystate -//Or should we? - pts.OffsetPoly(pts.GetPoly(ptHighlight), pt2.x() - pts.GetX(ptHighlight), pt2.y() - pts.GetY(ptHighlight)); - update(); - } - } + if (((Object *)(*i))->selected) + v.push_back(*i); } - else if (event->buttons() == Qt::NoButton) - { - // Moving, not dragging... - if (tool == TOOLSelect || tool == TOOLDelPt || tool == TOOLAddPt - || tool == TOOLPolySelect)// || tool == TOOLAddPoly) - { - QPoint pt2 = GetAdjustedMousePosition(event); - double closest = 1.0e+99; +} - for(int i=0; i & v) +{ + v.clear(); + std::vector::iterator i; - if (ptHighlight != oldPtHighlight) - { - oldPtHighlight = ptHighlight; - update(); - } + for(i=document.objects.begin(); i!=document.objects.end(); i++) + { + if (((Object *)(*i))->hovered) +// { +//printf("GetHovered: adding object (%X) to hover... hp1=%s, hp2=%s, hl=%s\n", (*i), (((Line *)(*i))->hitPoint[0] ? "true" : "false"), (((Line *)(*i))->hitPoint[1] ? "true" : "false"), (((Line *)(*i))->hitObject ? "true" : "false")); + v.push_back(*i); +// } + } +} - // What follows here looks like voodoo, but is really simple. What we do is - // check to see if the mouse point has a perpendicular intersection with any of - // the line segments. If it does, calculate the length of the perpendicular - // and choose the smallest length. If there is no perpendicular, then choose the - // length of line connecting the closer of either the first endpoint or the - // second and choose the smallest of those. - // There is one bit of math that looks like voodoo to me ATM--will explain once - // I understand it better (the calculation of the length of the perpendicular). +void DrawingView::resizeEvent(QResizeEvent * /*event*/) +{ + Global::screenSize = Vector(size().width(), size().height()); + UpdateGridBackground(); +} - if (pts.GetNumPoints() > 1 && tool == TOOLAddPt) - { - double smallest = 1.0e+99; - for(int i=0; i length of ls, -// then the perpendicular lies beyond the 2nd endpoint. - - if (pp < 0.0) - dist = v1.length(); - else if (pp > ls.length()) - dist = v2.length(); - else // distance = ?Det?(ls, v1) / |ls| - dist = fabs((ls.x * v1.y - v1.x * ls.y) / ls.length()); - -//The answer to the above looks like it might be found here: -// -//If the segment endpoints are s and e, and the point is p, then the test for the perpendicular -//intercepting the segment is equivalent to insisting that the two dot products {s-e}.{s-p} and -//{e-s}.{e-p} are both non-negative. Perpendicular distance from the point to the segment is -//computed by first computing the area of the triangle the three points form, then dividing by the -//length of the segment. Distances are done just by the Pythagorean theorem. Twice the area of the -//triangle formed by three points is the determinant of the following matrix: -// -//sx sy 1 -//ex ey 1 -//px py 1 -// -//By translating the start point to the origin, this can be rewritten as: -//By subtracting row 1 from all rows, you get the following: -//[because sx = sy = 0. you could leave out the -sx/y terms below. because we subtracted -// row 1 from all rows (including row 1) row 1 turns out to be zero. duh!] -// -//0 0 0 -//(ex - sx) (ey - sy) 0 -//(px - sx) (py - sy) 0 -// -//which greatly simplifies the calculation of the determinant. +void DrawingView::ToolHandler(int mode, Point p) +{ + // Drop angle snap until it's needed + angleSnap = false; + + if (Global::tool == TTLine) + LineHandler(mode, p); + else if (Global::tool == TTCircle) + CircleHandler(mode, p); + else if (Global::tool == TTArc) + ArcHandler(mode, p); + else if (Global::tool == TTRotate) + RotateHandler(mode, p); + else if (Global::tool == TTMirror) + MirrorHandler(mode, p); +} - if (dist < smallest) - smallest = dist, ptNextHighlight = pts.GetNext(i), ptHighlight = i; - } - if (ptNextHighlight != oldPtNextHighlight) - { - oldPtNextHighlight = ptNextHighlight; - update(); - } - } - } +void DrawingView::ToolDraw(Painter * painter) +{ + if (Global::tool == TTLine) + { + if (Global::toolState == TSNone) + { + painter->DrawHandle(toolPoint[0]); + } + else if ((Global::toolState == TSPoint2) && shiftDown) + { + painter->DrawHandle(toolPoint[1]); + } + else + { + painter->DrawLine(toolPoint[0], toolPoint[1]); + painter->DrawHandle(toolPoint[1]); + + Vector v(toolPoint[0], toolPoint[1]); + double absAngle = v.Angle() * RADIANS_TO_DEGREES; + double absLength = v.Magnitude(); + QString text = tr("Length: %1 in.\n") + QChar(0x2221) + tr(": %2"); + informativeText = text.arg(absLength).arg(absAngle); + } + } + else if (Global::tool == TTCircle) + { + if (Global::toolState == TSNone) + { + painter->DrawHandle(toolPoint[0]); + } + else if ((Global::toolState == TSPoint2) && shiftDown) + { + painter->DrawHandle(toolPoint[1]); + } + else + { + painter->DrawCross(toolPoint[0]); + double length = Vector::Magnitude(toolPoint[0], toolPoint[1]); + painter->SetBrush(QBrush(Qt::NoBrush)); + painter->DrawEllipse(toolPoint[0], length, length); + QString text = tr("Radius: %1 in."); + informativeText = text.arg(length); + } + } + else if (Global::tool == TTArc) + { + if (Global::toolState == TSNone) + { + painter->DrawHandle(toolPoint[0]); + } + else if (Global::toolState == TSPoint2) + { + double length = Vector::Magnitude(toolPoint[0], toolPoint[1]); + painter->SetBrush(QBrush(Qt::NoBrush)); + painter->DrawEllipse(toolPoint[0], length, length); + painter->DrawLine(toolPoint[0], toolPoint[1]); + painter->DrawHandle(toolPoint[1]); + QString text = tr("Radius: %1 in."); + informativeText = text.arg(length); + } + else if (Global::toolState == TSPoint3) + { + double angle = Vector::Angle(toolPoint[0], toolPoint[2]); + painter->DrawLine(toolPoint[0], toolPoint[2]); + painter->SetBrush(QBrush(Qt::NoBrush)); + painter->DrawEllipse(toolPoint[0], toolPoint[1].x, toolPoint[1].x); + painter->DrawHandle(toolPoint[0] + (Vector(cos(angle), sin(angle)) * toolPoint[1].x)); + QString text = tr("Angle start: %1") + QChar(0x00B0); + informativeText = text.arg(RADIANS_TO_DEGREES * angle); + } + else + { + double angle = Vector::Angle(toolPoint[0], toolPoint[3]); + double span = angle - toolPoint[2].x; + + if (span < 0) + span += TAU; + + painter->DrawLine(toolPoint[0], toolPoint[3]); + painter->SetBrush(QBrush(Qt::NoBrush)); + painter->DrawEllipse(toolPoint[0], toolPoint[1].x, toolPoint[1].x); + painter->SetPen(0xFF00FF, 2.0, LSSolid); + painter->DrawArc(toolPoint[0], toolPoint[1].x, toolPoint[2].x, span); + painter->DrawHandle(toolPoint[0] + (Vector(cos(angle), sin(angle)) * toolPoint[1].x)); + QString text = tr("Arc span: %1") + QChar(0x00B0); + informativeText = text.arg(RADIANS_TO_DEGREES * span); + } + } + else if (Global::tool == TTRotate) + { + 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; + + painter->DrawLine(toolPoint[0], toolPoint[1]); + + 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(mirrorPoint, toolPoint[1]); + + 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; - ptPrevious = event->pos(); + 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; + angleSnap = true; + } + else + { + toolPoint[3] = p; + angleSnap = true; + } - event->accept(); + 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 arc 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 += TAU; + + 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; + + angleSnap = true; + double angle = Vector(toolPoint[0], toolPoint[1]).Angle(); + std::vector::iterator j = select.begin(); + std::vector::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] > TAU) + obj2->angle[0] -= TAU; + } + } + } + + 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 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; + + angleSnap = true; + double angle = Vector(toolPoint[0], toolPoint[1]).Angle(); + std::vector::iterator j = select.begin(); + std::vector::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] > TAU) + obj2->angle[0] -= TAU; + } + } + } + + 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 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 (hoveringIntersection) + point = intersectionPoint; + else 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 + dragged = (Object *)hover[0]; + draggingObject = true; + + // See if anything is using just a straight click on a handle + if (HandleObjectClicked()) + { + draggingObject = false; + update(); + return; + } + + // Needed for grab & moving objects + // We do it *after*... why? (doesn't seem to confer any advantage...) + if (hoveringIntersection) + oldPoint = intersectionPoint; + else 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; + } + + // Do object hit testing... + bool needUpdate = HitTestObjects(point); + GetHovered(hover); + + // Check for multi-hover... + if (numHovered > 1) + { +//need to check for case where hover is over 2 circles and a 3rd's center... + Object * obj1 = (Object *)hover[0], * obj2 = (Object *)hover[1]; + + Geometry::Intersects(obj1, obj2); + int numIntersecting = Global::numIntersectParams; + double t = Global::intersectParam[0]; + double u = Global::intersectParam[1]; + + if (numIntersecting > 0) + { + Vector v1 = Geometry::GetPointForParameter(obj1, t); + Vector v2 = Geometry::GetPointForParameter(obj2, 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]; + + if (numIntersecting == 2) + { + Vector v2 = Global::intersectPoint[1]; + + if (Vector::Magnitude(v2, point) < Vector::Magnitude(v1, point)) + v1 = v2; + } + + QString text = tr("Intersection <%1, %2>"); + informativeText = text.arg(v1.x).arg(v1.y); + hoveringIntersection = true; + intersectionPoint = v1; + } + } + + // Handle object movement (left button down & over an object) + if ((event->buttons() & Qt::LeftButton) && draggingObject && !Global::tool) + { + if (hoveringIntersection) + point = intersectionPoint; + else if (hoverPointValid) + point = hoverPoint; + else if (Global::snapToGrid) + point = SnapPointToGrid(point); + + HandleObjectMovement(point); + update(); + oldPoint = point; + return; + } + + // Do tool handling, if any are active... + if (Global::tool) + { + if (hoveringIntersection) + point = intersectionPoint; + else if (hoverPointValid) + point = hoverPoint; + else if (Global::snapToGrid) + { + if (angleSnap) + point = SnapPointToAngle(point); + else + 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::RightButton) + if (event->button() == Qt::LeftButton) { - ToolType newTool = toolPalette->FindSelectedTool(); +//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(); - // We only change the tool if a new one was actually selected. Otherwise, we do nothing. - if (newTool != TOOLNone) + if (Global::tool) { - tool = newTool; + 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(); - if (tool == TOOLScroll || tool == TOOLZoom || tool == TOOLAddPoly - || tool == TOOLDelPoly) - ptHighlight = -1; + // Scoop 'em up + std::vector::iterator i; - if (tool == TOOLAddPoly) - polyFirstPoint = true; + for(i=document.objects.begin(); i!=document.objects.end(); i++) + { + if (((Object *)(*i))->selected) + select.push_back(*i); } - toolPalette->setVisible(false); - setCursor(cur[tool]); - // Just in case we changed highlighting style with the new tool... + draggingObject = false; + } + 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(); } - else if (event->button() == Qt::MidButton) + + if (select.size() > 0) { - setCursor(cur[tool]); // Restore previous cursor + if (event->key() == Qt::Key_Up) + { + TranslateObjects(select, Point(0, +1.0)); + update(); + } + else if (event->key() == Qt::Key_Down) + { + TranslateObjects(select, Point(0, -1.0)); + update(); + } + else if (event->key() == Qt::Key_Right) + { + TranslateObjects(select, Point(+1.0, 0)); + update(); + } + else if (event->key() == Qt::Key_Left) + { + TranslateObjects(select, Point(-1.0, 0)); + update(); + } } - else if (event->button() == Qt::LeftButton) +} + + +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 (tool == TOOLScroll || tool == TOOLZoom) -// ReleaseMouse(); -//this is prolly too much - ((TTEdit *)qApp)->charWnd->MakePathFromPoints(&pts); - ((TTEdit *)qApp)->charWnd->update(); + if (Global::tool) + ToolHandler(ToolKeyUp, Point(0, 0)); + + update(); } +} - event->accept(); + +// +// This looks strange, but it's really quite simple: We want a point that's +// more than half-way to the next grid point to snap there while conversely we +// want a point that's less than half-way to to the next grid point then snap +// to the one before it. So we add half of the grid spacing to the point, then +// divide by it so that we can remove the fractional part, then multiply it +// back to get back to the correct answer. +// +Point DrawingView::SnapPointToGrid(Point point) +{ + point += Global::gridSpacing / 2.0; // *This* adds to Z!!! + point /= Global::gridSpacing; + point.x = floor(point.x);//need to fix this for negative numbers... + point.y = floor(point.y); + point.z = 0; // Make *sure* Z doesn't go anywhere!!! + point *= Global::gridSpacing; + return point; } + + +Point DrawingView::SnapPointToAngle(Point point) +{ + // Snap to a single digit angle (using toolpoint #1 as the center) + double angle = Vector::Angle(toolPoint[0], point); + double length = Vector::Magnitude(toolPoint[0], point); + + // Convert from radians to degrees + double degAngle = angle * RADIANS_TO_DEGREES; + double snapAngle = (double)((int)(degAngle + 0.5)); + + Vector v; + v.SetAngleAndLength(snapAngle * DEGREES_TO_RADIANS, length); + point = toolPoint[0] + v; + + return point; +} + + +Rect DrawingView::GetObjectExtents(Object * obj) +{ + // Default to empty rect, if object checks below fail for some reason + Rect rect; + + switch (obj->type) + { + case OTLine: + { + rect = Rect(obj->p[0], obj->p[1]); + break; + } + case OTCircle: + { + rect = Rect(obj->p[0], obj->p[0]); + rect.Expand(obj->radius[0]); + break; + } + case OTArc: + { + Arc * a = (Arc *)obj; + + double start = a->angle[0]; + double end = start + a->angle[1]; + rect = Rect(Point(cos(start), sin(start)), Point(cos(end), sin(end))); + + // If the end of the arc is before the beginning, add 360 degrees to it + if (end < start) + end += TAU; + + // Adjust the bounds depending on which axes are crossed + if ((start < QTR_TAU) && (end > QTR_TAU)) + rect.t = 1.0; + + if ((start < HALF_TAU) && (end > HALF_TAU)) + rect.l = -1.0; + + if ((start < THREE_QTR_TAU) && (end > THREE_QTR_TAU)) + rect.b = -1.0; + + if ((start < TAU) && (end > TAU)) + rect.r = 1.0; + + if ((start < (TAU + QTR_TAU)) && (end > (TAU + QTR_TAU))) + rect.t = 1.0; + + if ((start < (TAU + HALF_TAU)) && (end > (TAU + HALF_TAU))) + rect.l = -1.0; + + if ((start < (TAU + THREE_QTR_TAU)) && (end > (TAU + THREE_QTR_TAU))) + rect.b = -1.0; + + rect *= a->radius[0]; + rect.Translate(a->p[0]); + + break; + } + case OTContainer: + { + Container * c = (Container *)obj; + std::vector::iterator i = c->objects.begin(); + rect = GetObjectExtents((Object *)*i); + i++; + + for(; i!=c->objects.end(); i++) + rect |= GetObjectExtents((Object *)*i); + } + default: + break; + } + + return rect; +} + + +void DrawingView::CheckObjectBounds(void) +{ + std::vector::iterator i; + + for(i=document.objects.begin(); i!=document.objects.end(); i++) + { + Object * obj = (Object *)(*i); + obj->selected = false; + + switch (obj->type) + { + case OTLine: + { + Line * l = (Line *)obj; + + if (Global::selection.contains(l->p[0].x, l->p[0].y) && Global::selection.contains(l->p[1].x, l->p[1].y)) + l->selected = true; + + break; + } + case OTCircle: + { + Circle * c = (Circle *)obj; + + if (Global::selection.contains(c->p[0].x - c->radius[0], c->p[0].y - c->radius[0]) && Global::selection.contains(c->p[0].x + c->radius[0], c->p[0].y + c->radius[0])) + c->selected = true; + + break; + } + case OTArc: + { + Arc * a = (Arc *)obj; + + double start = a->angle[0]; + double end = start + a->angle[1]; + QPointF p1(cos(start), sin(start)); + QPointF p2(cos(end), sin(end)); + QRectF bounds(p1, p2); + +#if 1 + // Swap X/Y coordinates if they're backwards... + if (bounds.left() > bounds.right()) + { + double temp = bounds.left(); + bounds.setLeft(bounds.right()); + bounds.setRight(temp); + } + + if (bounds.bottom() > bounds.top()) + { + double temp = bounds.bottom(); + bounds.setBottom(bounds.top()); + bounds.setTop(temp); + } +#else + // Doesn't work as advertised! For shame! + bounds = bounds.normalized(); #endif + + // If the end of the arc is before the beginning, add 360 degrees to it + if (end < start) + end += TAU; + + // Adjust the bounds depending on which axes are crossed + if ((start < QTR_TAU) && (end > QTR_TAU)) + bounds.setTop(1.0); + + if ((start < HALF_TAU) && (end > HALF_TAU)) + bounds.setLeft(-1.0); + + if ((start < THREE_QTR_TAU) && (end > THREE_QTR_TAU)) + bounds.setBottom(-1.0); + + if ((start < TAU) && (end > TAU)) + bounds.setRight(1.0); + + if ((start < (TAU + QTR_TAU)) && (end > (TAU + QTR_TAU))) + bounds.setTop(1.0); + + if ((start < (TAU + HALF_TAU)) && (end > (TAU + HALF_TAU))) + bounds.setLeft(-1.0); + + if ((start < (TAU + THREE_QTR_TAU)) && (end > (TAU + THREE_QTR_TAU))) + bounds.setBottom(-1.0); + + bounds.setTopLeft(QPointF(bounds.left() * a->radius[0], bounds.top() * a->radius[0])); + bounds.setBottomRight(QPointF(bounds.right() * a->radius[0], bounds.bottom() * a->radius[0])); + bounds.translate(a->p[0].x, a->p[0].y); + + if (Global::selection.contains(bounds)) + a->selected = true; + + break; + } + default: + break; + } + } +} + + +bool DrawingView::HitTestObjects(Point point) +{ + std::vector::iterator i; + numHovered = 0; + bool needUpdate = false; + hoverPointValid = false; + + for(i=document.objects.begin(); i!=document.objects.end(); i++) + { + Object * obj = (Object *)(*i); + + // If we're seeing the object we're dragging, skip it + if (draggingObject && (obj == dragged)) + continue; + + if (HitTest(obj, point)) + needUpdate = true; + + if (obj->hovered) + { + numHovered++; +//printf("MouseMove: OBJECT HOVERED (numHovered = %i)\n", numHovered); + emit(ObjectHovered(obj)); + } + } + + return needUpdate; +} + + +bool DrawingView::HitTest(Object * obj, Point point) +{ + bool needUpdate = false; + + switch (obj->type) + { + case OTLine: + { + bool oldHP0 = obj->hitPoint[0], oldHP1 = obj->hitPoint[1], oldHO = obj->hitObject; + obj->hitPoint[0] = obj->hitPoint[1] = obj->hitObject = false; + Vector lineSegment = obj->p[1] - obj->p[0]; + Vector v1 = point - obj->p[0]; + Vector v2 = point - obj->p[1]; + double t = Geometry::ParameterOfLineAndPoint(obj->p[0], obj->p[1], point); + double distance; + + if (t < 0.0) + distance = v1.Magnitude(); + else if (t > 1.0) + distance = v2.Magnitude(); + else + // distance = ?Det?(ls, v1) / |ls| + distance = fabs((lineSegment.x * v1.y - v1.x * lineSegment.y) + / lineSegment.Magnitude()); + + if ((v1.Magnitude() * Global::zoom) < 8.0) + { + obj->hitPoint[0] = true; + hoverPoint = obj->p[0]; + hoverPointValid = true; + } + else if ((v2.Magnitude() * Global::zoom) < 8.0) + { + obj->hitPoint[1] = true; + hoverPoint = obj->p[1]; + hoverPointValid = true; + } + else if ((distance * Global::zoom) < 5.0) + obj->hitObject = true; + + obj->hovered = (obj->hitPoint[0] || obj->hitPoint[1] || obj->hitObject ? true : false); + + if ((oldHP0 != obj->hitPoint[0]) || (oldHP1 != obj->hitPoint[1]) || (oldHO != obj->hitObject)) + needUpdate = true; + + break; + } + case OTCircle: + { + bool oldHP = obj->hitPoint[0], oldHO = obj->hitObject; + obj->hitPoint[0] = obj->hitObject = false; + double length = Vector::Magnitude(obj->p[0], point); + + if ((length * Global::zoom) < 8.0) + obj->hitPoint[0] = true; + else if ((fabs(length - obj->radius[0]) * Global::zoom) < 2.0) + obj->hitObject = true; + + obj->hovered = (obj->hitPoint[0] || obj->hitObject ? true : false); + + if ((oldHP != obj->hitPoint[0]) || (oldHO != obj->hitObject)) + needUpdate = true; + + break; + } + case OTArc: + { + bool oldHP0 = obj->hitPoint[0], oldHP1 = obj->hitPoint[1], oldHP2 = obj->hitPoint[2], oldHO = obj->hitObject; + obj->hitPoint[0] = obj->hitPoint[1] = obj->hitPoint[2] = obj->hitObject = false; + double length = Vector::Magnitude(obj->p[0], point); + double angle = Vector::Angle(obj->p[0], point); + + // Make sure we get the angle in the correct spot + if (angle < obj->angle[0]) + angle += TAU; + + // Get the span that we're pointing at... + double span = angle - obj->angle[0]; + + // N.B.: Still need to hit test the arc start & arc span handles... + double spanAngle = obj->angle[0] + obj->angle[1]; + Point handle1 = obj->p[0] + (Vector(cos(obj->angle[0]), sin(obj->angle[0])) * obj->radius[0]); + Point handle2 = obj->p[0] + (Vector(cos(spanAngle), sin(spanAngle)) * obj->radius[0]); + double length2 = Vector::Magnitude(point, handle1); + double length3 = Vector::Magnitude(point, handle2); + + if ((length * Global::zoom) < 8.0) + obj->hitPoint[0] = true; + else if ((length2 * Global::zoom) < 8.0) + { + obj->hitPoint[1] = true; + hoverPoint = handle1; + hoverPointValid = true; + } + else if ((length3 * Global::zoom) < 8.0) + { + obj->hitPoint[2] = true; + hoverPoint = handle2; + hoverPointValid = true; + } + else if (((fabs(length - obj->radius[0]) * Global::zoom) < 2.0) && (span < obj->angle[1])) + obj->hitObject = true; + + obj->hovered = (obj->hitPoint[0] || obj->hitPoint[1] || obj->hitPoint[2] || obj->hitObject ? true : false); + + if ((oldHP0 != obj->hitPoint[0]) || (oldHP1 != obj->hitPoint[1]) || (oldHP2 != obj->hitPoint[2]) || (oldHO != obj->hitObject)) + needUpdate = true; + + break; + } + case OTDimension: + { + bool oldHP0 = obj->hitPoint[0], oldHP1 = obj->hitPoint[1], oldHP2 = obj->hitPoint[2], oldHP3 = obj->hitPoint[3], oldHP4 = obj->hitPoint[4], oldHO = obj->hitObject; + obj->hitPoint[0] = obj->hitPoint[1] = obj->hitPoint[2] = obj->hitPoint[3] = obj->hitPoint[4] = obj->hitObject = false; + + Dimension * d = (Dimension *)obj; + + Vector orthogonal = Vector::Normal(d->lp[0], d->lp[1]); + // Get our line parallel to our points + float scaledThickness = Global::scale * obj->thickness; + Point p1 = d->lp[0] + (orthogonal * 10.0 * scaledThickness); + Point p2 = d->lp[1] + (orthogonal * 10.0 * scaledThickness); + Point p3(p1, point); + + Vector v1(d->p[0], point); + Vector v2(d->p[1], point); + Vector lineSegment(p1, p2); + double t = Geometry::ParameterOfLineAndPoint(p1, p2, point); + double distance; + Point midpoint = (p1 + p2) / 2.0; + Point hFSPoint = Point(midpoint, point); + Point hCS1Point = Point((p1 + midpoint) / 2.0, point); + Point hCS2Point = Point((midpoint + p2) / 2.0, point); + + if (t < 0.0) + distance = v1.Magnitude(); + else if (t > 1.0) + distance = v2.Magnitude(); + else + // distance = ?Det?(ls, v1) / |ls| + distance = fabs((lineSegment.x * p3.y - p3.x * lineSegment.y) + / lineSegment.Magnitude()); + + if ((v1.Magnitude() * Global::zoom) < 8.0) + obj->hitPoint[0] = true; + else if ((v2.Magnitude() * Global::zoom) < 8.0) + obj->hitPoint[1] = true; + else if ((distance * Global::zoom) < 5.0) + obj->hitObject = true; + + if ((hFSPoint.Magnitude() * Global::zoom) < 8.0) + obj->hitPoint[2] = true; + else if ((hCS1Point.Magnitude() * Global::zoom) < 8.0) + obj->hitPoint[3] = true; + else if ((hCS2Point.Magnitude() * Global::zoom) < 8.0) + obj->hitPoint[4] = true; + +// return (hitPoint1 || hitPoint2 || hitLine || hitFlipSwitch || hitChangeSwitch1 || hitChangeSwitch2 ? true : false); + obj->hovered = (obj->hitPoint[0] || obj->hitPoint[1] || obj->hitPoint[2] || obj->hitPoint[3] || obj->hitPoint[4] || obj->hitObject ? true : false); + + if ((oldHP0 != obj->hitPoint[0]) || (oldHP1 != obj->hitPoint[1]) || (oldHP2 != obj->hitPoint[2]) || (oldHP3 != obj->hitPoint[3]) || (oldHP4 != obj->hitPoint[4]) || (oldHO != obj->hitObject)) + needUpdate = true; + + + break; + } + case OTContainer: + { + // Containers must be recursively tested... + Container * c = (Container *)obj; + c->hitObject = false; + c->hovered = false; + std::vector::iterator i; + + for(i=c->objects.begin(); i!=c->objects.end(); i++) + { + Object * cObj = (Object *)*i; + + if (HitTest(cObj, point)) + needUpdate = true; + + if (cObj->hitObject == true) + c->hitObject = true; + + if (cObj->hovered == true) + c->hovered = true; + } + + break; + } + default: + break; + } + + return needUpdate; +} + + +bool DrawingView::HandleObjectClicked(void) +{ + if (dragged->type == OTDimension) + { + Dimension * d = (Dimension *)dragged; + + if (d->hitPoint[2]) + { + // Hit the "flip sides" switch, so flip 'em + Point temp = d->p[0]; + d->p[0] = d->p[1]; + d->p[1] = temp; + return true; + } + else if (d->hitPoint[3]) + { + // There are three cases here: aligned, horizontal, & vertical. + // Aligned and horizontal do the same thing, vertical goes back to + // linear. + if (d->subtype == DTLinearVert) + d->subtype = DTLinear; + else + d->subtype = DTLinearVert; + + return true; + } + else if (d->hitPoint[4]) + { + // There are three cases here: aligned, horizontal, & vertical. + // Aligned and vertical do the same thing, horizontal goes back to + // linear. + if (d->subtype == DTLinearHorz) + d->subtype = DTLinear; + else + d->subtype = DTLinearHorz; + + return true; + } + } + + return false; +} + + +void DrawingView::HandleObjectMovement(Point point) +{ + Point delta = point - oldPoint; +//printf("HOM: old = (%f,%f), new = (%f, %f), delta = (%f, %f)\n", oldPoint.x, oldPoint.y, point.x, point.y, delta.x, delta.y); +// Object * obj = (Object *)hover[0]; + Object * obj = dragged; +//printf("Object type = %i (size=%i), ", obj->type, hover.size()); +//printf("Object (%X) move: hp1=%s, hp2=%s, hl=%s\n", obj, (obj->hitPoint[0] ? "true" : "false"), (obj->hitPoint[1] ? "true" : "false"), (obj->hitObject ? "true" : "false")); + + switch (obj->type) + { + case OTLine: + if (obj->hitPoint[0]) + obj->p[0] = point; + else if (obj->hitPoint[1]) + obj->p[1] = point; + else if (obj->hitObject) + { + obj->p[0] += delta; + obj->p[1] += delta; + } + + break; + + case OTCircle: + if (obj->hitPoint[0]) + obj->p[0] = point; + else if (obj->hitObject) + { +//this doesn't work. we need to save this on mouse down for this to work correctly! +// double oldRadius = obj->radius[0]; + obj->radius[0] = Vector::Magnitude(obj->p[0], point); + + QString text = QObject::tr("Radius: %1");//\nScale: %2%"); + informativeText = text.arg(obj->radius[0], 0, 'd', 4);//.arg(obj->radius[0] / oldRadius * 100.0, 0, 'd', 0); + } + + break; + + case OTArc: + if (obj->hitPoint[0]) + obj->p[0] = point; + else if (obj->hitPoint[1]) + { + // Change the Arc's span (handle #1) + if (shiftDown) + { + double angle = Vector::Angle(obj->p[0], point); + double delta = angle - obj->angle[0]; + + if (delta < 0) + delta += TAU; + + obj->angle[1] -= delta; + obj->angle[0] = angle; + + if (obj->angle[1] < 0) + obj->angle[1] += TAU; + + QString text = QObject::tr("Span: %1") + QChar(0x00B0) + QObject::tr("\n%2") + QChar(0x00B0) + QObject::tr(" - %3") + QChar(0x00B0); + informativeText = text.arg(obj->angle[1] * RADIANS_TO_DEGREES, 0, 'd', 4).arg(obj->angle[0] * RADIANS_TO_DEGREES, 0, 'd', 2).arg((obj->angle[0] + obj->angle[1]) * RADIANS_TO_DEGREES, 0, 'd', 2); + return; + } + + double angle = Vector::Angle(obj->p[0], point); + obj->angle[0] = angle; + QString text = QObject::tr("Start angle: %1") + QChar(0x00B0); + informativeText = text.arg(obj->angle[0] * RADIANS_TO_DEGREES, 0, 'd', 4); + } + else if (obj->hitPoint[2]) + { + // Change the Arc's span (handle #2) + if (shiftDown) + { + double angle = Vector::Angle(obj->p[0], point); + obj->angle[1] = angle - obj->angle[0]; + + if (obj->angle[1] < 0) + obj->angle[1] += TAU; + + QString text = QObject::tr("Span: %1") + QChar(0x00B0) + QObject::tr("\n%2") + QChar(0x00B0) + QObject::tr(" - %3") + QChar(0x00B0); + informativeText = text.arg(obj->angle[1] * RADIANS_TO_DEGREES, 0, 'd', 4).arg(obj->angle[0] * RADIANS_TO_DEGREES, 0, 'd', 2).arg((obj->angle[0] + obj->angle[1]) * RADIANS_TO_DEGREES, 0, 'd', 2); + return; + } + + double angle = Vector::Angle(obj->p[0], point); + obj->angle[0] = angle - obj->angle[1]; + + if (obj->angle[0] < 0) + obj->angle[0] += TAU; + + QString text = QObject::tr("End angle: %1") + QChar(0x00B0); + informativeText = text.arg((obj->angle[0] + obj->angle[1]) * RADIANS_TO_DEGREES, 0, 'd', 4); + } + else if (obj->hitObject) + { + if (shiftDown) + { + return; + } + + obj->radius[0] = Vector::Magnitude(obj->p[0], point); + QString text = QObject::tr("Radius: %1"); + informativeText = text.arg(obj->radius[0], 0, 'd', 4); + } + + break; + + case OTDimension: + if (obj->hitPoint[0]) + obj->p[0] = point; + else if (obj->hitPoint[1]) + obj->p[1] = point; + else if (obj->hitObject) + { + obj->p[0] += delta; + obj->p[1] += delta; + } + + break; + + case OTContainer: + // This is shitty, but works for now until I can code up something + // nicer :-) + TranslateObject(obj, delta); + + break; + default: + break; + } +} +