// (C) 2011 Underground Software
// See the README and GPLv3 files for licensing and warranty information
//
-// JLH = James L. Hammons <jlhamm@acm.org>
+// JLH = James Hammons <jlhamm@acm.org>
//
// 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:
//
+// - Lots of stuff
//
// Uncomment this for debugging...
//#define DEBUG
-//#define DEBUGFOO // Various tool debugging...
+//#define DEBUGFOO // Various tool debugging...
//#define DEBUGTP // Toolpalette debugging...
#include "drawingview.h"
#include <stdint.h>
#include "mathconstants.h"
-#include "arc.h"
-#include "circle.h"
-#include "dimension.h"
-#include "line.h"
+//#include "arc.h"
+//#include "circle.h"
+//#include "dimension.h"
+//#include "geometry.h"
+//#include "line.h"
+#include "global.h"
+#include "painter.h"
+
+
+#define BACKGROUND_MAX_SIZE 512
+
+// Class variable
+//Container DrawingView::document(Vector(0, 0));
DrawingView::DrawingView(QWidget * parent/*= NULL*/): QWidget(parent),
-// scale(1.0), offsetX(-10), offsetY(-10), tool(TOOLSelect),
-// ptHighlight(-1), oldPtHighlight(-1), ptNextHighlight(-1), oldPtNextHighlight(-1),
-// polyFirstPoint(true)
- scale(1.0), offsetX(-10), offsetY(-10),
- document(Vector(0, 0)),
- gridSpacing(32.0), collided(false)
+ // The value in the settings file will override this.
+ useAntialiasing(true),
+ gridBackground(BACKGROUND_MAX_SIZE, BACKGROUND_MAX_SIZE),
+ scale(1.0), offsetX(-10), offsetY(-10),// document(Vector(0, 0)),
+ gridPixels(0), collided(false)//, toolAction(NULL)
{
+// 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)
- document.Add(new Line(Vector(5, 5), Vector(50, 40), &document));
+#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));
document.Add(new Line(Vector(10, 83), Vector(17, 2), &document));
document.Add(new Circle(Vector(100, 100), 36, &document));
document.Add(new Circle(Vector(50, 150), 49, &document));
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));
- document.Add(new Dimension(Vector(5, 5), Vector(50, 40), &document));
-}
-
-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.
- 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
- return QPoint(-offsetX + x, (size().height() - (-offsetY + y)) * +1.0);
-}
-
-void DrawingView::paintEvent(QPaintEvent * /*event*/)
-{
- QPainter painter(this);
- painter.setRenderHint(QPainter::Antialiasing);
-
-#if 0
- painter.translate(QPoint(-offsetX, size.height() - (-offsetY)));
- painter.scale(1.0, -1.0);
+#if 1
+ Dimension * dimension = new Dimension(Vector(0, 0), Vector(0, 0), DTLinear, &document);
+ line->SetDimensionOnLine(dimension);
+ document.Add(dimension);
#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);
+ // Alternate way to do the above...
+ line->SetDimensionOnLine();
+#endif
#endif
- Object::SetViewportHeight(size().height());
- // Draw coordinate axes
+/*
+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 / Painter::zoom;
+
+Painter::zoom is the zoom factor for the drawing, and all mouse clicks are
+translated to Cartesian coordinates through this. (Initially, Painter::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. Painter::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"), Painter::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
+Painter::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! :-)
- painter.setPen(QPen(Qt::blue, 1.0, Qt::DotLine));
- painter.drawLine(0, -16384, 0, 16384);
- painter.drawLine(-16384, 0, 16384, 0);
+*/
+ SetGridSize(12); // This is in pixels
+}
-// Maybe we can make the grid into a background brush instead, and let Qt deal
-// with it???
- // Draw grid
#if 0
- painter.setPen(QPen(QColor(90, 90, 90), 1.0, Qt::DotLine));
-
- //these two loops kill performance!
- for(double x=0; x<size().width(); x+=gridSpacing*10.0)
- p.drawLine((int)x, -16384, (int)x, 16384);
-
- for(double y=0; y<size().height(); y+=gridSpacing*10.0)
- p.drawLine(-16384, (int)y, 16384, (int)y);
+void DrawingView::SetToolActive(Action * action)
+{
+ if (action != NULL)
+ {
+ toolAction = action;
+ connect(toolAction, SIGNAL(ObjectReady(Object *)), this,
+ SLOT(AddNewObjectToDocument(Object *)));
+ connect(toolAction, SIGNAL(NeedRefresh()), this, SLOT(HandleActionUpdate()));
+ }
+}
#endif
- painter.setPen(QPen(Qt::black, 1.0, Qt::SolidLine));
- for(double x=0; x<size().width(); x+=gridSpacing)
- for(double y=0; y<size().height(); y+=gridSpacing)
- painter.drawPoint((int)x, (int)y);
+void DrawingView::SetGridSize(uint32_t size)
+{
+ // Sanity check
+ if (size == gridPixels)
+ return;
- // The top level document takes care of rendering for us...
- document.Draw(&painter);
-}
+ // 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));
-void DrawingView::mousePressEvent(QMouseEvent * event)
-{
- if (event->button() == Qt::LeftButton)
+ for(int i=0; i<(BACKGROUND_MAX_SIZE-1); i+=gridPixels)
{
- QPoint pt = GetAdjustedMousePosition(event);
- Vector point(pt.x(), pt.y());
+ pmp.drawLine(i, 0, i, BACKGROUND_MAX_SIZE - 1);
+ pmp.drawLine(0, i, BACKGROUND_MAX_SIZE - 1, i);
+ }
- collided = document.Collided(point);
+ pmp.end();
- if (collided)
- update(); // Do an update if collided with at least *one* object in the document
- }
+ // Set up new BG brush & zoom level (pixels per base unit)
+// Painter::zoom = gridPixels / gridSpacing;
+ Painter::zoom = gridPixels / Global::gridSpacing;
+ UpdateGridBackground();
}
-void DrawingView::mouseMoveEvent(QMouseEvent * event)
-{
- QPoint pt = GetAdjustedMousePosition(event);
- Vector point(pt.x(), pt.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.
- 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;
-#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();
+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);
}
-void DrawingView::mouseReleaseEvent(QMouseEvent * event)
+
+void DrawingView::AddNewObjectToDocument(Object * object)
{
- if (event->button() == Qt::LeftButton)
+ if (object)
{
- 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())
-// if (collided)
- update(); // Do an update if collided with at least *one* object in the document
+// object->Reparent(&document);
+// document.Add(object);
+ update();
}
+//printf("DrawingView::AddNewObjectToDocument(). object=%08X\n", object);
}
-#if 0
-QSize DrawingView::minimumSizeHint() const
+void DrawingView::HandleActionUpdate(void)
{
- return QSize(50, 50);
+ update();
}
-QSize DrawingView::sizeHint() const
+
+void DrawingView::SetCurrentLayer(int layer)
{
- return QSize(400, 400);
+ Global::currentLayer = layer;
+//printf("DrawingView::CurrentLayer = %i\n", layer);
}
-void DrawingView::CreateCursors(void)
+
+QPoint DrawingView::GetAdjustedMousePosition(QMouseEvent * event)
{
- int hotx[8] = { 1, 1, 11, 15, 1, 1, 1, 1 };
- int hoty[8] = { 1, 1, 11, 13, 1, 1, 1, 1 };
+ // 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()));
+}
- 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]);
- }
+
+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
+ return QPoint(-offsetX + x, (size().height() - (-offsetY + y)) * +1.0);
}
-/*
-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);
-
-// 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();
-
-// dc.SetDeviceOrigin(-offsetX, height - (-offsetY));
-// dc.SetAxisOrientation(true, true);
- p.translate(QPoint(-offsetX, winSize.height() - (-offsetY)));
- p.scale(1.0, -1.0);
-
-// 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...
-
-// 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));
-
- // Draw coordinate axes
-
-// dc.CrossHair(0, 0);
- p.drawLine(0, -16384, 0, 16384);
- p.drawLine(-16384, 0, 16384, 0);
-
- // Draw points
-
- for(int i=0; i<pts.GetNumPoints(); i++)
- {
- if (i == ptHighlight)
- {
-// dc.SetPen(*(wxThePenList->FindOrCreatePen(wxColour(0xFF, 0x00, 0x00), 1, wxSOLID)));
-//// SelectObject(hdc, hRedPen1);
- p.setPen(QPen(Qt::red, 1.0, Qt::SolidLine));
+ QPainter qtPainter(this);
+ Painter painter(&qtPainter);
- if (pts.GetOnCurve(i))
- {
- DrawSquareDotN(p, pts.GetX(i), pts.GetY(i), 7);
- DrawSquareDotN(p, pts.GetX(i), pts.GetY(i), 9);
- }
- else
- {
- DrawRoundDotN(p, pts.GetX(i), pts.GetY(i), 7);
- DrawRoundDotN(p, pts.GetX(i), pts.GetY(i), 9);
- }
- }
- 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))
- {
- DrawSquareDotN(p, pts.GetX(i), pts.GetY(i), 7);
- DrawSquareDotN(p, pts.GetX(i), pts.GetY(i), 9);
- }
- else
- {
- DrawRoundDotN(p, pts.GetX(i), pts.GetY(i), 7);
- DrawRoundDotN(p, pts.GetX(i), pts.GetY(i), 9);
- }
- }
- 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 (useAntialiasing)
+ qtPainter.setRenderHint(QPainter::Antialiasing);
- 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);
- }
- }
+ Global::viewportHeight = size().height();
-//// SelectObject(hdc, hBlackPen1);
-// dc.SetPen(*(wxThePenList->FindOrCreatePen(wxColour(0x00, 0x00, 0x00), 1, wxSOLID)));
- p.setPen(QPen(Qt::black, 1.0, Qt::SolidLine));
+ // 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 curve formed by points
+ // The top level document takes care of rendering for us...
+// document.Draw(&painter);
- for(int poly=0; poly<pts.GetNumPolys(); poly++)
+#if 0
+ if (toolAction)
{
- if (pts.GetNumPoints(poly) > 2)
- {
- // Initial move...
- // If it's not on curve, then move to it, otherwise move to last point...
-
- int x, y;
-
- 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);
-
- for(int i=0; i<pts.GetNumPoints(poly); i++)
- {
- if (pts.GetOnCurve(poly, i))
-// LineTo(hdc, pts.GetX(poly, i), pts.GetY(poly, i));
- {
- p.drawLine(x, y, pts.GetX(poly, i), pts.GetY(poly, i));
- x = (int)pts.GetX(poly, i), y = (int)pts.GetY(poly, i);
- }
- 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.SetPen(QPen(QColor(200, 100, 0, 255), 1.0, Qt::DashLine));
+ painter.DrawCrosshair(oldPoint);
+ toolAction->Draw(&painter);
+ }
+#endif
- if (!pts.GetOnCurve(poly, next))
- nx = (nx + pts.GetX(poly, i)) / 2.0f,
- ny = (ny + pts.GetY(poly, i)) / 2.0f;
+#if 1
+ if (Global::selectionInProgress)
+ {
+ painter.SetPen(QPen(QColor(255, 127, 0, 255)));
+ painter.SetBrush(QBrush(QColor(255, 127, 0, 100)));
+ painter.DrawRect(Global::selection);
+ }
+#endif
+}
- Bezier(p, point(px, py), point(pts.GetX(poly, i), pts.GetY(poly, i)), point(nx, ny));
- x = (int)nx, y = (int)ny;
- if (pts.GetOnCurve(poly, next))
- i++; // Following point is on curve, so move past it
- }
- }
- }
- }
+void DrawingView::resizeEvent(QResizeEvent * /*event*/)
+{
+ Painter::screenSize = Vector(size().width(), size().height());
+ UpdateGridBackground();
}
+
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 (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 (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();
- }
- }
- else if (tool == TOOLAddPoly) // "Add Poly" tool
- {
-#ifdef DEBUGFOO
-WriteLogMsg("Adding point... # polys: %u, # points: %u", pts.GetNumPolys(), pts.GetNumPoints());
-#endif
- if (polyFirstPoint)
- {
- polyFirstPoint = false;
- pts.AddNewPolyAtEnd();
- }
+ Vector point = Painter::QtToCartesianCoords(Vector(event->x(), event->y()));
+// collided = document.Collided(point);
+ collided = false;
- 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
- }
- else if (tool == TOOLSelect || tool == TOOLPolySelect)
+ // Do an update if collided with at least *one* object in the document
+// if (collided)
+// update();
+
+#if 0
+ if (toolAction)
{
- 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 (Global::snapToGrid)
+ point = Global::SnapPointToGrid(point);
- if (event->modifiers() == Qt::ShiftModifier || event->modifiers() == Qt::ControlModifier)
- {
- pts.SetOnCurve(ptHighlight, !pts.GetOnCurve(ptHighlight));
- update();
- }
- }
+ // We always snap to object points, and they take precendence over
+ // grid points...
+ if (Global::snapPointIsValid)
+ point = Global::snapPoint;
+
+ toolAction->MouseDown(point);
}
- else if (tool == TOOLDelPt)
+#endif
+
+#if 1
+ // Didn't hit any object and not using a tool, so do a selection rectangle
+ if (!(collided))// || toolAction))
{
- if (pts.GetNumPoints() > 0)
-//Or could use:
-// if (ptHighlight != -1)
- {
-//This assumes that WM_MOUSEMOVE happens before this!
-//The above commented out line should take care of this contingency... !!! FIX !!!
- pts.DeletePoint(ptHighlight);
- update();
- }
+ Global::selectionInProgress = true;
+ Global::selection.setTopLeft(QPointF(point.x, point.y));
+ Global::selection.setBottomRight(QPointF(point.x, point.y));
}
+#endif
+ }
+ 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);
}
-
- event->accept();
}
+
void DrawingView::mouseMoveEvent(QMouseEvent * event)
{
- if (event->buttons() == Qt::RightButton)
- {
- ToolType newTool = toolPalette->FindSelectedTool();
+ 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;
- if (newTool != toolPalette->prevTool)
- {
- toolPalette->prevTool = newTool;
- toolPalette->repaint();
- }
- }
- else if (event->buttons() == Qt::MidButton)
+ // Scrolling...
+ if (event->buttons() & Qt::MiddleButton)
{
- // 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();
+ 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 /= Painter::zoom;
+ delta.y = -delta.y;
+ Painter::origin -= delta;
+
+ UpdateGridBackground();
update();
- ptPrevious = pt;
+ oldPoint = point;
+ return;
}
- else if (event->buttons() == Qt::LeftButton)
- {
-#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();
- }
- }
- }
- else if (event->buttons() == Qt::NoButton)
+ // Grid processing... (only snap here is left button is down)
+ if ((event->buttons() & Qt::LeftButton) && Global::snapToGrid)
{
- // Moving, not dragging...
- if (tool == TOOLSelect || tool == TOOLDelPt || tool == TOOLAddPt
- || tool == TOOLPolySelect)// || tool == TOOLAddPoly)
- {
- QPoint pt2 = GetAdjustedMousePosition(event);
- double closest = 1.0e+99;
+ point = SnapPointToGrid(point);
+ }
- for(int i=0; i<pts.GetNumPoints(); i++)
- {
- double dist = ((pt2.x() - pts.GetX(i)) * (pt2.x() - pts.GetX(i)))
- + ((pt2.y() - pts.GetY(i)) * (pt2.y() - pts.GetY(i)));
+ // Snap points on objects always take precedence over the grid, whether
+ // dragging an object or not...
+//thisnowok
+ if (Global::snapPointIsValid)
+ {
+// Uncommenting this causes the cursor to become unresponsive after the first
+// object is added.
+// point = Global::snapPoint;
+ }
+#endif
- if (dist < closest)
- closest = dist, ptHighlight = i;
- }
+// oldPoint = point;
+//we should keep track of the last point here and only pass this down *if* the point
+//changed...
- if (ptHighlight != oldPtHighlight)
- {
- oldPtHighlight = ptHighlight;
- update();
- }
+#if 0
+ // This returns true if we've moved over an object...
+ if (document.PointerMoved(point))
+ {
+/*
+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...
- // 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'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...
- // 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).
- if (pts.GetNumPoints() > 1 && tool == TOOLAddPt)
+*/
+ // 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 smallest = 1.0e+99;
+ double t;
+ int n = Geometry::Intersects((Line *)document.lastObjectHovered, (Line *)document.penultimateObjectHovered, &t);
- for(int i=0; i<pts.GetNumPoints(); i++)
+ if (n == 1)
{
- int32 p1x = pts.GetX(i), p1y = pts.GetY(i),
- p2x = pts.GetX(pts.GetNext(i)), p2y = pts.GetY(pts.GetNext(i));
-
- vector ls(p2x, p2y, 0, p1x, p1y, 0), v1(pt2.x(), pt2.y(), 0, p1x, p1y, 0),
- v2(pt2.x(), pt2.y(), 0, p2x, p2y, 0);
- double pp = ls.dot(v1) / ls.length(), dist;
-// Geometric interpretation:
-// pp is the paremeterized point on the vector ls where the perpendicular intersects ls.
-// If pp < 0, then the perpendicular lies beyond the 1st endpoint. If pp > 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.
-
- if (dist < smallest)
- smallest = dist, ptNextHighlight = pts.GetNext(i), ptHighlight = i;
+ 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 (ptNextHighlight != oldPtNextHighlight)
+ if (n == 1)
+ {
+ Global::snapPoint = p1;
+ Global::snapPointIsValid = true;
+ }
+ else if (n == 2)
{
- oldPtNextHighlight = ptNextHighlight;
- update();
+ 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);
- ptPrevious = event->pos();
+ // We always snap to object points, and they take precendence over
+ // grid points...
+ if (Global::snapPointIsValid)
+ point = Global::snapPoint;
+
+ toolAction->MouseMoved(point);
}
+#endif
+
+ // This is used to draw the tool crosshair...
+ oldPoint = point;
- event->accept();
+#if 1
+ if (/*document.NeedsUpdate() ||*/ Global::selectionInProgress /*|| toolAction*/)
+ update();
+#endif
}
+
void DrawingView::mouseReleaseEvent(QMouseEvent * event)
{
- if (event->button() == Qt::RightButton)
+ if (event->button() == Qt::LeftButton)
{
- ToolType newTool = toolPalette->FindSelectedTool();
+#if 0
+ document.PointerReleased();
+#endif
- // We only change the tool if a new one was actually selected. Otherwise, we do nothing.
- if (newTool != TOOLNone)
- {
- tool = newTool;
+//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 (tool == TOOLScroll || tool == TOOLZoom || tool == TOOLAddPoly
- || tool == TOOLDelPoly)
- ptHighlight = -1;
+#if 0
+ if (toolAction)
+ toolAction->MouseReleased();
+#endif
- if (tool == TOOLAddPoly)
- polyFirstPoint = true;
+ if (Global::selectionInProgress)
+ {
+ // Select all the stuff inside of selection
+ Global::selectionInProgress = false;
}
-
- toolPalette->setVisible(false);
- setCursor(cur[tool]);
- // Just in case we changed highlighting style with the new tool...
- update();
}
- else if (event->button() == Qt::MidButton)
+ else if (event->button() == Qt::MiddleButton)
{
- setCursor(cur[tool]); // Restore previous cursor
+ scrollDrag = false;
+ setCursor(Qt::ArrowCursor);
}
- else if (event->button() == Qt::LeftButton)
+}
+
+
+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 - Painter::origin) / zoomFactor);
+ Painter::origin = newOrigin;
+ Painter::zoom *= zoomFactor;
+ }
+ else
{
-// if (tool == TOOLScroll || tool == TOOLZoom)
-// ReleaseMouse();
-//this is prolly too much
- ((TTEdit *)qApp)->charWnd->MakePathFromPoints(&pts);
- ((TTEdit *)qApp)->charWnd->update();
+ Vector newOrigin = center + ((-center + Painter::origin) * zoomFactor);
+ Painter::origin = newOrigin;
+ Painter::zoom /= zoomFactor;
}
- event->accept();
+#if 1
+// Global::gridSpacing = gridPixels / Painter::zoom;
+// UpdateGridBackground();
+ SetGridSize(Global::gridSpacing * Painter::zoom);
+ update();
+// zoomIndicator->setText(QString("Grid: %1\", BU: Inch").arg(Global::gridSpacing));
+#endif
+}
+
+
+void DrawingView::keyPressEvent(QKeyEvent * event)
+{
+#if 0
+ if (toolAction)
+ toolAction->KeyDown(event->key());
+#endif
}
+
+
+void DrawingView::keyReleaseEvent(QKeyEvent * event)
+{
+#if 0
+ if (toolAction)
+ toolAction->KeyReleased(event->key());
#endif
+}
+
+//
+// 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;
+}
+
projects / architektonas / blobdiff