X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdrawingview.cpp;h=5ae9c9a9081e5ccf121c82958eac22e6634d6400;hb=6a7baa2814a8b4d0b93df776a4c99689bcfb3ffa;hp=0d62be16552d6eafc26e70268b8b085faa6b2ace;hpb=7b7c8ec7d7f5379e09a8b7392f465f41639b0c79;p=architektonas diff --git a/src/drawingview.cpp b/src/drawingview.cpp index 0d62be1..5ae9c9a 100644 --- a/src/drawingview.cpp +++ b/src/drawingview.cpp @@ -19,6 +19,8 @@ // // STILL TO BE DONE: // +// - Lots of stuff +// - Layer locking (hiding works) // // Uncomment this for debugging... @@ -29,34 +31,36 @@ #include "drawingview.h" #include +#include "geometry.h" +#include "global.h" #include "mathconstants.h" - -#include "arc.h" -#include "circle.h" -#include "dimension.h" -#include "drawcircleaction.h" -#include "drawlineaction.h" -#include "line.h" #include "painter.h" +#include "structs.h" +#include "utils.h" + + +#define BACKGROUND_MAX_SIZE 512 + +// Class variable +//Container DrawingView::document(Vector(0, 0)); DrawingView::DrawingView(QWidget * parent/*= NULL*/): QWidget(parent), // The value in the settings file will override this. - useAntialiasing(true), - gridBackground(256, 256), + 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(Vector(0, 0)), - gridSpacing(32.0), collided(false), rotateTool(false), rx(150.0), ry(150.0), - scrollDrag(false), addLineTool(false), toolAction(NULL) + gridPixels(0), collided(false), hoveringIntersection(false) { +// document.isTopLevelContainer = true; +//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)); @@ -66,143 +70,274 @@ 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 -// connect(toolAction, SIGNAL(ObjectReady(Object *)), this, -// SLOT(AddNewObjectToDocument(Object *))); -//This works, now how to scroll it??? -// QPixmap pm(256, 256); - QPainter pmp(&gridBackground); -#if 0 - pmp.fillRect(0, 0, 256, 256, Qt::lightGray); - - pmp.fillRect(0, 64, 64, 64, Qt::darkGray); - pmp.fillRect(0, 192, 64, 64, Qt::darkGray); - pmp.fillRect(64, 0, 64, 64, Qt::darkGray); - pmp.fillRect(64, 128, 64, 64, Qt::darkGray); - pmp.fillRect(128, 64, 64, 64, Qt::darkGray); - pmp.fillRect(128, 192, 64, 64, Qt::darkGray); - pmp.fillRect(192, 0, 64, 64, Qt::darkGray); - pmp.fillRect(192, 128, 64, 64, Qt::darkGray); #else - pmp.fillRect(0, 0, 256, 256, QColor(240, 240, 240)); - pmp.setPen(QPen(QColor(190, 190, 255), 2.0, Qt::SolidLine)); - for(int i=0; i<255; i+=12) - pmp.drawLine(i, 0, i, 255); - for(int i=0; i<255; i+=12) - pmp.drawLine(0, i, 255, i); + 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, PI / 4.0, PI * 1.3)), + document.objects.push_back(new Arc(Vector(200, 200), 60, PI / 2.0, PI * 1.5)); + 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 - pmp.end(); - UpdateGridBackground(); -} -void DrawingView::SetRotateToolActive(bool state/*= true*/) -{ - rotateTool = state; - update(); +/* +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::SetAddLineToolActive(bool state/*= true*/) + +#if 0 +void DrawingView::SetToolActive(Action * action) { - if (state)// && toolAction == NULL) + if (action != NULL) { - if (toolAction) - delete toolAction; - - addCircleTool = false; - toolAction = new DrawLineAction(); + toolAction = action; connect(toolAction, SIGNAL(ObjectReady(Object *)), this, SLOT(AddNewObjectToDocument(Object *))); + connect(toolAction, SIGNAL(NeedRefresh()), this, SLOT(HandleActionUpdate())); } - else if (!state && addLineTool && toolAction) - { - delete toolAction; - toolAction = NULL; - } - - addLineTool = state; - update(); -//printf("DrawingView::SetAddLineToolActive(). toolAction=%08X\n", toolAction); } +#endif -void DrawingView::SetAddCircleToolActive(bool state/*= true*/) + +void DrawingView::SetGridSize(uint32_t size) { - if (state)// && toolAction == NULL) - { - if (toolAction) - delete toolAction; + // Sanity check + if (size == gridPixels) + return; - addLineTool = false; - toolAction = new DrawCircleAction(); - connect(toolAction, SIGNAL(ObjectReady(Object *)), this, - SLOT(AddNewObjectToDocument(Object *))); - } - else if (!state && addCircleTool && toolAction) + // 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) { - delete toolAction; - toolAction = NULL; + pmp.drawLine(i, 0, i, BACKGROUND_MAX_SIZE - 1); + pmp.drawLine(0, i, BACKGROUND_MAX_SIZE - 1, i); } - addCircleTool = state; - update(); -//printf("DrawingView::SetAddCircleToolActive(). toolAction=%08X\n", toolAction); + pmp.end(); + + // Set up new BG brush & zoom level (pixels per base unit) +// Painter::zoom = gridPixels / gridSpacing; + Global::zoom = gridPixels / Global::gridSpacing; + UpdateGridBackground(); } + void DrawingView::UpdateGridBackground(void) { -#if 0 -// Shift the background to match our scrolling... -QBrush newBrush = *backgroundBrush; -//QMatrix brushMatrix = backgroundBrush->matrix(); -QTransform brushMatrix = backgroundBrush->transform(); -brushMatrix.translate(Painter::origin.x, Painter::origin.y); -//brushMatrix.translate(15.0, 15.0); -//backgroundBrush->setMatrix(brushMatrix); -//backgroundBrush->setTransform(brushMatrix); -newBrush.setTransform(brushMatrix); -QPalette pal = palette(); -//pal.setBrush(backgroundRole(), *backgroundBrush); -pal.setBrush(backgroundRole(), newBrush); -setPalette(pal); -//Background painting does not honor the transformation matrix (either one)... -// So... -#else -//was: 128 -#define BG_BRUSH_SPAN 72 // Transform the origin to Qt coordinates Vector pixmapOrigin = Painter::CartesianToQtCoords(Vector()); int x = (int)pixmapOrigin.x; int y = (int)pixmapOrigin.y; - // Problem with mod 128: Negative numbers screw it up... [FIXED] - x = (x < 0 ? 0 : BG_BRUSH_SPAN - 1) - (x % BG_BRUSH_SPAN); - y = (y < 0 ? 0 : BG_BRUSH_SPAN - 1) - (y % BG_BRUSH_SPAN); + // 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, BG_BRUSH_SPAN, BG_BRUSH_SPAN); + QPixmap pm = gridBackground.copy(x, y, gridPixels, gridPixels); QPalette pal = palette(); pal.setBrush(backgroundRole(), QBrush(pm)); setAutoFillBackground(true); setPalette(pal); -#endif } -void DrawingView::AddNewObjectToDocument(Object * object) + +void DrawingView::SetCurrentLayer(int /*layer*/) +{ +//Not needed anymore... +// Global::currentLayer = layer; +//printf("DrawingView::CurrentLayer = %i\n", layer); +} + + +// +// 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) { - if (object) +//printf("DrawingView::DeleteCurrentLayer(): currentLayer = %i\n", layer); + std::vector::iterator i = document.objects.begin(); + + while (i != document.objects.end()) { - object->Reparent(&document); - document.Add(object); - update(); + Object * obj = (Object *)(*i); + + if (obj->layer < layer) + i++; + else if (obj->layer == layer) + { + document.objects.erase(i); + delete obj; + } + else + { + obj->layer--; + i++; + } } -//printf("DrawingView::AddNewObjectToDocument(). object=%08X\n", object); + + // We've just done a destructive action, so update the screen! + update(); } + +void DrawingView::HandleLayerToggle(void) +{ + // 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. @@ -211,6 +346,7 @@ QPoint DrawingView::GetAdjustedMousePosition(QMouseEvent * event) return QPoint(offsetX + event->x(), offsetY + (size().height() - event->y())); } + QPoint DrawingView::GetAdjustedClientPosition(int x, int y) { // VOODOO ALERT (ON Y COMPONENT!!!!) (eh?) @@ -219,76 +355,888 @@ QPoint DrawingView::GetAdjustedClientPosition(int x, int y) return QPoint(-offsetX + x, (size().height() - (-offsetY + y)) * +1.0); } + void DrawingView::paintEvent(QPaintEvent * /*event*/) { QPainter qtPainter(this); Painter painter(&qtPainter); -// qtPainter.setBackground(QBrush(Qt::DiagCrossPattern)); -// qtPainter.setBackgroundMode(Qt::OpaqueMode); - if (useAntialiasing) qtPainter.setRenderHint(QPainter::Antialiasing); - Painter::screenSize = Vector(size().width(), size().height()); - 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 + // Do object rendering... + for(int i=0; i & v, int layer) +{ + std::vector::iterator i; + + for(i=v.begin(); i!=v.end(); i++) + { + Object * obj = (Object *)(*i); + float scaledThickness = Global::scale * obj->thickness; + + // If the object isn't on the current layer being drawn, skip it + if (obj->layer != layer) + continue; - if (rotateTool) + 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 (obj->selected || obj->hitObject) + painter->SetPen(0xFF0000, Global::zoom * scaledThickness, LSDash); + } + + switch (obj->type) + { + case OTLine: + painter->DrawLine(obj->p[0], obj->p[1]); + + if (obj->hitPoint[0]) + painter->DrawHandle(obj->p[0]); + + if (obj->hitPoint[1]) + painter->DrawHandle(obj->p[1]); + + break; + case OTCircle: + painter->SetBrush(QBrush(Qt::NoBrush)); + painter->DrawEllipse(obj->p[0], obj->radius[0], obj->radius[0]); + + if (obj->hitPoint[0]) + painter->DrawHandle(obj->p[0]); + + break; + case OTArc: + painter->DrawArc(obj->p[0], obj->radius[0], obj->angle[0], obj->angle[1]); + + if (obj->hitPoint[0]) + painter->DrawHandle(obj->p[0]); + + if (obj->hitPoint[1]) + painter->DrawHandle(obj->p[0] + (Vector(cos(obj->angle[0]), sin(obj->angle[0])) * obj->radius[0])); + + 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])); + + break; + case OTDimension: + { + Dimension * d = (Dimension *)obj; + + Vector v(d->p[0], d->p[1]); + double angle = v.Angle(); + Vector unit = v.Unit(); + Vector linePt1 = d->p[0], linePt2 = d->p[1]; + Vector ortho; + double x1, y1, length; + + if (d->subtype == DTLinearVert) + { + if ((angle < 0) || (angle > PI)) + { + 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 = PI3_OVER_2; + } + 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 = PI_OVER_2; + } + + linePt1.x = linePt2.x = x1; + length = fabs(d->p[0].y - d->p[1].y); + } + else if (d->subtype == DTLinearHorz) + { + if ((angle < PI_OVER_2) || (angle > PI3_OVER_2)) + { + 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 = PI; + } + + linePt1.y = linePt2.y = y1; + length = fabs(d->p[0].x - d->p[1].x); + } + else if (d->subtype == DTLinear) + { + angle = Vector(linePt1, linePt2).Angle(); + ortho = Vector::Normal(linePt1, linePt2); + length = v.Magnitude(); + } + + unit = Vector(linePt1, linePt2).Unit(); + + Point p1 = linePt1 + (ortho * 10.0 * scaledThickness); + Point p2 = linePt2 + (ortho * 10.0 * scaledThickness); + Point p3 = linePt1 + (ortho * 16.0 * scaledThickness); + Point p4 = linePt2 + (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(linePt1, linePt2, linePt2 - (unit * 9.0 * scaledThickness)); + //printf("Dimension::Draw(): t = %lf\n", t); + + // 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) + { + // Draw main dimension line + arrowheads + painter->DrawLine(p1, p2); + painter->DrawArrowhead(p1, p2, scaledThickness); + painter->DrawArrowhead(p2, p1, scaledThickness); + } + else + { + // 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)); + } + + // Draw length of dimension line... + painter->SetFont(QFont("Arial", 8.0 * Global::zoom * scaledThickness)); + Point ctr = p2 + (Vector(p2, p1) / 2.0); + + #if 0 + QString dimText = QString("%1\"").arg(Vector(endpoint - position).Magnitude()); + #else + QString dimText; + + if (length < 12.0) + dimText = QString("%1\"").arg(length); + else + { + double feet = (double)((int)length / 12); + double inches = length - (feet * 12.0); + + if (inches == 0) + dimText = QString("%1'").arg(feet); + else + dimText = QString("%1' %2\"").arg(feet).arg(inches); + } + #endif + + painter->DrawAngledText(ctr, angle, dimText, scaledThickness); + + break; + } + case OTText: + { + Text * t = (Text *)obj; + painter->DrawTextObject(t->p[0], t->s.c_str(), scaledThickness); + break; + } + default: + break; + } + } +} + + +void DrawingView::AddHoveredToSelection(void) +{ + std::vector::iterator i; + + for(i=document.objects.begin(); i!=document.objects.end(); i++) + { + if (((Object *)(*i))->hovered) + ((Object *)(*i))->selected = true; + } +} + + +void DrawingView::GetSelection(std::vector & v) +{ + v.clear(); + std::vector::iterator i; + + for(i=document.objects.begin(); i!=document.objects.end(); i++) + { + if (((Object *)(*i))->selected) + v.push_back(*i); + } +} + + +void DrawingView::GetHovered(std::vector & v) +{ + v.clear(); + std::vector::iterator i; + + 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); +// } + } +} + + +void DrawingView::resizeEvent(QResizeEvent * /*event*/) +{ + Global::screenSize = Vector(size().width(), size().height()); + UpdateGridBackground(); +} + + +void DrawingView::ToolHandler(int mode, Point p) +{ + 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); +} + + +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) { - painter.SetPen(QPen(QColor(0, 200, 0), 2.0, Qt::SolidLine)); - painter.DrawLine(rx - 10, ry, rx + 10, ry); - painter.DrawLine(rx, ry - 10, rx, ry + 10); + if (Global::toolState == TSNone) + { + painter->DrawHandle(toolPoint[0]); + } + else if ((Global::toolState == TSPoint2) && shiftDown) + { + painter->DrawHandle(toolPoint[1]); + } + else + { + double length = Vector::Magnitude(toolPoint[0], toolPoint[1]); +// painter->DrawLine(toolPoint[0], toolPoint[1]); +// painter->DrawHandle(toolPoint[1]); + painter->SetBrush(QBrush(Qt::NoBrush)); + painter->DrawEllipse(toolPoint[0], length, length); + QString text = tr("Radius: %1 in.");//\n") + QChar(0x2221) + tr(": %2"); + informativeText = text.arg(length);//.arg(absAngle); + } } + 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; -// Maybe we can make the grid into a background brush instead, and let Qt deal -// with it??? - // Draw grid + if (span < 0) + span += PI_TIMES_2; + 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]); + // Likely we need a tool container for this... (now we do!) #if 0 - painter.setPen(QPen(QColor(90, 90, 90), 1.0, Qt::DotLine)); + 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; + QString text = QChar(0x2221) + QObject::tr(": %1"); + informativeText = text.arg(absAngle); - //these two loops kill performance! - // Also, these overwrite our coordinate axes - for(double x=0; xDrawHandle(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; + } - for(double y=0; y 180.0) + absAngle -= 180.0; - // The top level document takes care of rendering for us... - document.Draw(&painter); + QString text = QChar(0x2221) + QObject::tr(": %1"); + informativeText = text.arg(absAngle); - if (toolAction) - toolAction->Draw(&painter); + 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::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] > 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 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::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] > 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 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())); - collided = document.Collided(point); - if (collided) - update(); // Do an update if collided with at least *one* object in the document + // 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 (toolAction) - toolAction->MouseDown(point); + // 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) { @@ -299,19 +1247,25 @@ void DrawingView::mousePressEvent(QMouseEvent * event) } } + 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(point, oldPoint); - delta /= Painter::zoom; + Vector delta(oldPoint, point); + delta /= Global::zoom; delta.y = -delta.y; - Painter::origin -= delta; + Global::origin -= delta; UpdateGridBackground(); update(); @@ -319,53 +1273,123 @@ void DrawingView::mouseMoveEvent(QMouseEvent * event) return; } - // 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; + // 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; } -#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()) + // 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; + } - if (toolAction) + // Do object hit testing... + bool needUpdate = HitTestObjects(point); + + // Check for multi-hover... + if (numHovered > 1) { - toolAction->MouseMoved(point); - update(); + 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) { - document.PointerReleased(); - //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(); // Do an update if collided with at least *one* object in the document + update(); - if (toolAction) - toolAction->MouseReleased(); + 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::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) { @@ -373,3 +1397,504 @@ void DrawingView::mouseReleaseEvent(QMouseEvent * event) 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(); + } +} + + +// +// 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; +} + + +void DrawingView::CheckObjectBounds(void) +{ + std::vector::iterator i; + numSelected = 0; + + 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 += 2.0 * PI; + + // Adjust the bounds depending on which axes are crossed + if ((start < PI_OVER_2) && (end > PI_OVER_2)) + bounds.setTop(1.0); + + if ((start < PI) && (end > PI)) + bounds.setLeft(-1.0); + + if ((start < (PI + PI_OVER_2)) && (end > (PI + PI_OVER_2))) + bounds.setBottom(-1.0); + + if ((start < (2.0 * PI)) && (end > (2.0 * PI))) + bounds.setRight(1.0); + + if ((start < ((2.0 * PI) + PI_OVER_2)) && (end > ((2.0 * PI) + PI_OVER_2))) + bounds.setTop(1.0); + + if ((start < (3.0 * PI)) && (end > (3.0 * PI))) + bounds.setLeft(-1.0); + + if ((start < ((3.0 * PI) + PI_OVER_2)) && (end > ((3.0 * PI) + PI_OVER_2))) + 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; + } + + if (obj->selected) + numSelected++; + } +} + + +bool DrawingView::HitTestObjects(Point point) +{ + std::vector::iterator i; + numHovered = 0; + bool needUpdate = false; + + for(i=document.objects.begin(); i!=document.objects.end(); i++) + { + Object * obj = (Object *)(*i); + + 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; + else if ((v2.Magnitude() * Global::zoom) < 8.0) + obj->hitPoint[1] = 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 += PI_TIMES_2; + + // 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; + else if ((length3 * Global::zoom) < 8.0) + obj->hitPoint[2] = 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; + } + default: + break; + } + + if (obj->hovered) +// { + numHovered++; +//printf("MouseMove: OBJECT HOVERED (numHovered = %i)\n", numHovered); +// } + } + + return needUpdate; +} + + +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]; +//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 += PI_TIMES_2; + + obj->angle[1] -= delta; + obj->angle[0] = angle; + + if (obj->angle[1] < 0) + obj->angle[1] += PI_TIMES_2; + + 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] += PI_TIMES_2; + + 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] += PI_TIMES_2; + + 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; + default: + break; + } +} + + + +#if 0 + // This returns true if we've moved over an object... + if (document.PointerMoved(point)) // <-- This + // This is where the object would do automagic dragging & shit. Since we don't + // do that anymore, we need a strategy to handle it. + { + +/* +Now objects handle mouse move snapping as well. The code below mainly works only +for tools; we need to fix it so that objects work as well... + +There's a problem with the object point snapping in that it's dependent on the +order of the objects in the document. Most likely this is because it counts the +selected object last and thus fucks up the algorithm. Need to fix this... + + +*/ + // Do object snapping here. Grid snapping on mouse down is done in the + // objects themselves, only because we have to hit test the raw point, + // not the snapped point. There has to be a better way...! + if (document.penultimateObjectHovered) + { + // Two objects are hovered, see if we have an intersection point + if ((document.lastObjectHovered->type == OTLine) && (document.penultimateObjectHovered->type == OTLine)) + { + double t; + int n = Geometry::Intersects((Line *)document.lastObjectHovered, (Line *)document.penultimateObjectHovered, &t); + + if (n == 1) + { + Global::snapPoint = document.lastObjectHovered->GetPointAtParameter(t); + Global::snapPointIsValid = true; + } + } + else if ((document.lastObjectHovered->type == OTCircle) && (document.penultimateObjectHovered->type == OTCircle)) + { + Point p1, p2; + int n = Geometry::Intersects((Circle *)document.lastObjectHovered, (Circle *)document.penultimateObjectHovered, 0, 0, 0, 0, &p1, &p2); + + if (n == 1) + { + Global::snapPoint = p1; + Global::snapPointIsValid = true; + } + else if (n == 2) + { + double d1 = Vector(point, p1).Magnitude(); + double d2 = Vector(point, p2).Magnitude(); + + if (d1 < d2) + Global::snapPoint = p1; + else + Global::snapPoint = p2; + + Global::snapPointIsValid = true; + } + } + } +// else +// { + // Otherwise, it was a single object hovered... +// } + } + + if (toolAction) + { + if (Global::snapToGrid) + point = Global::SnapPointToGrid(point); + + // We always snap to object points, and they take precendence over + // grid points... + if (Global::snapPointIsValid) + point = Global::snapPoint; + + toolAction->MouseMoved(point); + } +#else +#endif +