]> Shamusworld >> Repos - architektonas/blobdiff - src/drawingview.cpp
Added mouse wheel zoom.
[architektonas] / src / drawingview.cpp
index 8f689a80bd0e33cd2ef3000ba7bff14fea6d5c59..9341a76279044ef78c64e3d21a39f95d85cda41c 100644 (file)
@@ -19,6 +19,7 @@
 //
 // STILL TO BE DONE:
 //
+// - Lots of stuff
 //
 
 // Uncomment this for debugging...
 #include "arc.h"
 #include "circle.h"
 #include "dimension.h"
-#include "drawcircleaction.h"
-#include "drawdimensionaction.h"
-#include "drawlineaction.h"
 #include "line.h"
 #include "painter.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.
@@ -50,16 +51,17 @@ DrawingView::DrawingView(QWidget * parent/*= NULL*/): QWidget(parent),
        gridBackground(BACKGROUND_MAX_SIZE, BACKGROUND_MAX_SIZE),
        scale(1.0), offsetX(-10), offsetY(-10),
        document(Vector(0, 0)),
-       gridSpacing(12.0), gridPixels(0), collided(false), rotateTool(false),
-       rx(150.0), ry(150.0),
-       scrollDrag(false), addLineTool(false), addCircleTool(false),
-       addDimensionTool(false),
+       /*gridSpacing(12.0),*/ gridPixels(0), collided(false), //rotateTool(false),
+//     rx(150.0), ry(150.0),
+//     scrollDrag(false), addLineTool(false), addCircleTool(false),
+//     addDimensionTool(false),
        toolAction(NULL)
 {
        document.isTopLevelContainer = true;
        setBackgroundRole(QPalette::Base);
        setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 
+       Object::gridSpacing = 12.0;
 //     toolPalette = new ToolWindow();
 //     CreateCursors();
 //     setCursor(cur[TOOLSelect]);
@@ -124,72 +126,23 @@ 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.
+need a thickness parameter similar to the "size" param for dimensions. (And now
+we do! :-)
 
 */
-#if 0
-       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+=12)
-       {
-               pmp.drawLine(i, 0, i, BACKGROUND_MAX_SIZE - 1);
-               pmp.drawLine(0, i, BACKGROUND_MAX_SIZE - 1, i);
-       }
-
-       pmp.end();
-       UpdateGridBackground();
-#else
        SetGridSize(12);
-#endif
-}
-
-
-void DrawingView::SetRotateToolActive(bool state/*= true*/)
-{
-       rotateTool = state;
-       update();
-}
-
-
-void DrawingView::SetAddLineToolActive(bool state/*= true*/)
-{
-       if (state)
-       {
-               toolAction = new DrawLineAction();
-               connect(toolAction, SIGNAL(ObjectReady(Object *)), this,
-                       SLOT(AddNewObjectToDocument(Object *)));
-       }
-
-       update();
-//printf("DrawingView::SetAddLineToolActive(). toolAction=%08X\n", toolAction);
-}
-
-
-void DrawingView::SetAddCircleToolActive(bool state/*= true*/)
-{
-       if (state)
-       {
-               toolAction = new DrawCircleAction();
-               connect(toolAction, SIGNAL(ObjectReady(Object *)), this,
-                       SLOT(AddNewObjectToDocument(Object *)));
-       }
-
-       update();
 }
 
 
-void DrawingView::SetAddDimensionToolActive(bool state/*= true*/)
+void DrawingView::SetToolActive(Action * action)
 {
-       if (state)
+       if (action != NULL)
        {
-               toolAction = new DrawDimensionAction();
+               toolAction = action;
                connect(toolAction, SIGNAL(ObjectReady(Object *)), this,
                        SLOT(AddNewObjectToDocument(Object *)));
+               connect(toolAction, SIGNAL(NeedRefresh()), this, SLOT(HandleActionUpdate()));
        }
-
-       update();
 }
 
 
@@ -214,7 +167,8 @@ void DrawingView::SetGridSize(uint32_t size)
        pmp.end();
 
        // Set up new BG brush & zoom level (pixels per base unit)
-       Painter::zoom = gridPixels / gridSpacing;
+//     Painter::zoom = gridPixels / gridSpacing;
+       Painter::zoom = gridPixels / Object::gridSpacing;
        UpdateGridBackground();
 }
 
@@ -310,6 +264,19 @@ void DrawingView::AddNewObjectToDocument(Object * object)
 }
 
 
+void DrawingView::HandleActionUpdate(void)
+{
+       update();
+}
+
+
+void DrawingView::SetCurrentLayer(int layer)
+{
+       Object::currentLayer = layer;
+//printf("DrawingView::CurrentLayer = %i\n", layer);
+}
+
+
 QPoint DrawingView::GetAdjustedMousePosition(QMouseEvent * event)
 {
        // This is undoing the transform, e.g. going from client coords to local coords.
@@ -336,40 +303,26 @@ void DrawingView::paintEvent(QPaintEvent * /*event*/)
        if (useAntialiasing)
                qtPainter.setRenderHint(QPainter::Antialiasing);
 
-//     Painter::screenSize = Vector(size().width(), size().height());
        Object::SetViewportHeight(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
-// NOTE that this can be done as an action!
-// In that case, we would need access to the document...
-// [We can do that by making the document a class object...]
-       if (rotateTool)
-       {
-               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);
-       }
-
-// Maybe we can make the grid into a background brush instead, and let Qt deal
-// with it??? YES!!
-
        // The top level document takes care of rendering for us...
        document.Draw(&painter);
 
        if (toolAction)
+       {
+               painter.SetPen(QPen(QColor(200, 100, 0, 255), 1.0, Qt::DashLine));
+               painter.DrawCrosshair(oldPoint);
                toolAction->Draw(&painter);
+       }
 
        if (Object::selectionInProgress)
        {
-//             painter.SetPen(QPen(Qt::green, 1.0, Qt::SolidLine));
                painter.SetPen(QPen(QColor(255, 127, 0, 255)));
-//             painter.SetBrush(QBrush(Qt::NoBrush));
                painter.SetBrush(QBrush(QColor(255, 127, 0, 100)));
                painter.DrawRect(Object::selection);
        }
@@ -388,13 +341,34 @@ void DrawingView::mousePressEvent(QMouseEvent * event)
        if (event->button() == Qt::LeftButton)
        {
                Vector point = Painter::QtToCartesianCoords(Vector(event->x(), event->y()));
+
+// Problem with this: Can't select stuff very well with the snap grid on.
+// Completely screws things up, as sometimes things don't fall on the grid.
+/*
+So, how to fix this? Have the Object check itself?
+Maybe we can fix this by having the initial point not be snapped, but when there's
+a drag, we substitute the snapped point 'oldPoint' which the Object keeps track of
+internally to know how far it was dragged...
+
+Now we do... :-/
+*/
+#if 0
+               if (Object::snapToGrid)
+                       point = Object::SnapPointToGrid(point);
+#endif
+
                collided = document.Collided(point);
 
                if (collided)
                        update();       // Do an update if collided with at least *one* object in the document
 
                if (toolAction)
+               {
+                       if (Object::snapToGrid)
+                               point = Object::SnapPointToGrid(point);
+
                        toolAction->MouseDown(point);
+               }
 
                // Didn't hit any object and not using a tool, so do a selection rectangle
                if (!(collided || toolAction))
@@ -436,27 +410,12 @@ void DrawingView::mouseMoveEvent(QMouseEvent * event)
        }
 
        // 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)
+       if ((event->buttons() & Qt::LeftButton) && Object::snapToGrid)
        {
-               point += gridSpacing / 2.0;                                     // *This* adds to Z!!!
-               point /= gridSpacing;
-//200% is ok, gridSpacing = 6 in this case...
-//won't run into problems until gridSpacing = 1.5 (zoom = 800%)
-//run into problems with this approach: when zoom level is 200% this truncates to
-//integers, which is *not* what's wanted here...
-               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;
+               point = Object::SnapPointToGrid(point);
        }
-#endif
+
+       oldPoint = point;
 //we should keep track of the last point here and only pass this down *if* the point
 //changed...
        document.PointerMoved(point);
@@ -466,6 +425,12 @@ void DrawingView::mouseMoveEvent(QMouseEvent * event)
 
        if (toolAction)
        {
+               if (Object::snapToGrid)
+               {
+                       point = Object::SnapPointToGrid(point);
+                       oldPoint = point;
+               }
+
                toolAction->MouseMoved(point);
                update();
        }
@@ -501,3 +466,45 @@ void DrawingView::mouseReleaseEvent(QMouseEvent * event)
        }
 }
 
+
+void DrawingView::wheelEvent(QWheelEvent * event)
+{
+       double zoomFactor = 1.25;
+       QSize sizeWin = /*drawing->*/size();
+       Vector center(sizeWin.width() / 2.0, sizeWin.height() / 2.0);
+       center = Painter::QtToCartesianCoords(center);
+
+       if (event->delta() > 0)
+       {
+               Vector newOrigin = center - ((center - Painter::origin) / zoomFactor);
+               Painter::origin = newOrigin;
+               Painter::zoom *= zoomFactor;
+       }
+       else
+       {
+               Vector newOrigin = center + ((-center + Painter::origin) * zoomFactor);
+               Painter::origin = newOrigin;
+               Painter::zoom /= zoomFactor;
+       }
+
+//     Object::gridSpacing = /*drawing->*/gridPixels / Painter::zoom;
+       SetGridSize(Object::gridSpacing * Painter::zoom);
+//     /*drawing->*/UpdateGridBackground();
+       /*drawing->*/update();
+//     zoomIndicator->setText(QString("Grid: %1\", BU: Inch").arg(Object::gridSpacing));
+}
+
+
+void DrawingView::keyPressEvent(QKeyEvent * event)
+{
+       if (toolAction)
+               toolAction->KeyDown(event->key());
+}
+
+
+void DrawingView::keyReleaseEvent(QKeyEvent * event)
+{
+       if (toolAction)
+               toolAction->KeyReleased(event->key());
+}
+