SVN commit 850698 by bjacob:

Fix bug: the actual active zone of the handles was different (here, smaller) 
than the handles drawn on the screen, making it more difficult to use this tool.

This was caused by confusion between pixel-coordinates and view-coordinates 
(pixelToView and viewToPixel). Maybe, in order to prevent this kind of bugs, it 
would be preferable to introduce separate types for 
points-expressed-in-pixels-coords and points-expressed-in-view-coords.

There remains another bug, perhaps related, but I don't know how to fix it: if 
you start editing the perspective grid and then change the zoom level, you can 
no longer use the handles.



 M  +12 -12    kis_tool_perspectivegrid.cc  


--- trunk/koffice/krita/plugins/tools/tool_perspectivegrid/kis_tool_perspectivegrid.cc #850697:850698
@@ -93,22 +93,22 @@
 
 KisPerspectiveGridNodeSP KisToolPerspectiveGrid::nodeNearPoint( KisSubPerspectiveGrid* grid, QPointF point)
 {
-    if( mouseNear( point, *grid->topLeft() ) )
+    if( mouseNear( point, pixelToView(*grid->topLeft()) ) )
     {
         dbgPlugins <<" NEAR TOPLEFT HANDLE";
         return grid->topLeft();
     }
-    else if( mouseNear( point, *grid->topRight() ) )
+    else if( mouseNear( point, pixelToView(*grid->topRight()) ) )
     {
         dbgPlugins <<" NEAR TOPRIGHT HANDLE";
         return grid->topRight();
     }
-    else if( mouseNear( point, *grid->bottomLeft() ) )
+    else if( mouseNear( point, pixelToView(*grid->bottomLeft()) ) )
     {
         dbgPlugins <<" NEAR BOTTOMLEFT HANDLE";
         return grid->bottomLeft();
     }
-    else if( mouseNear( point, *grid->bottomRight() ) )
+    else if( mouseNear( point, pixelToView(*grid->bottomRight()) ) )
     {
         dbgPlugins <<" NEAR BOTTOMRIGHT HANDLE";
         return grid->bottomRight();
@@ -143,7 +143,7 @@
         m_canvas->updateCanvas(); // TODO update only the relevant part of the canvas
     } else if(m_mode == MODE_EDITING && event->button() == Qt::LeftButton){
         // Look for the handle which was pressed
-        QPointF mousep = viewToPixel( event->pos() );
+        QPointF mousep = event->pos();
         for( QList<KisSubPerspectiveGrid*>::const_iterator it = pGrid->begin(); it != pGrid->end(); ++it)
         {
             KisSubPerspectiveGrid* grid = *it;
@@ -153,7 +153,7 @@
             {
                 m_mode = MODE_DRAGING_NODE;
                 break;
-            } else if( mouseNear( mousep, ((*grid->topLeft() + *grid->bottomLeft() )*0.5) ) )
+            } else if( mouseNear( mousep, ((pixelToView(*grid->topLeft()) + pixelToView(*grid->bottomLeft()) )*0.5) ) )
             {
                 dbgPlugins <<" PRESS LEFT HANDLE";
                 m_mode = MODE_DRAGING_TRANSLATING_TWONODES;
@@ -165,7 +165,7 @@
                 m_canvas->updateCanvas(); // TODO update only the relevant part of the canvas
                 break;
             }
-            else if( mouseNear( mousep, ((*grid->topRight() + *grid->bottomRight() )*0.5) ) )
+            else if( mouseNear( mousep, ((pixelToView(*grid->topRight()) + pixelToView(*grid->bottomRight()) )*0.5) ) )
             {
                 dbgPlugins <<" PRESS RIGHT HANDLE";
                 m_mode = MODE_DRAGING_TRANSLATING_TWONODES;
@@ -177,7 +177,7 @@
                 m_canvas->updateCanvas(); // TODO update only the relevant part of the canvas
                 break;
             }
-            else if( mouseNear( mousep, ((*grid->topLeft() + *grid->topRight() )*0.5) ) )
+            else if( mouseNear( mousep, ((pixelToView(*grid->topLeft()) + pixelToView(*grid->topRight()) )*0.5) ) )
             {
                 dbgPlugins <<" PRESS TOP HANDLE";
                 m_mode = MODE_DRAGING_TRANSLATING_TWONODES;
@@ -189,7 +189,7 @@
                 m_canvas->updateCanvas(); // TODO update only the relevant part of the canvas
                 break;
             }
-            else if( mouseNear( mousep, ((*grid->bottomLeft() + *grid->bottomRight() )*0.5) ) )
+            else if( mouseNear( mousep, ((pixelToView(*grid->bottomLeft()) + pixelToView(*grid->bottomRight()) )*0.5) ) )
             {
                 dbgPlugins <<" PRESS BOTTOM HANDLE";
                 m_mode = MODE_DRAGING_TRANSLATING_TWONODES;
@@ -200,7 +200,7 @@
                 pGrid->addNewSubGrid( newsubgrid);
                 m_canvas->updateCanvas(); // TODO update only the relevant part of the canvas
                 break;
-            } else if( QRectF( (gridCenter.x() - 16), (gridCenter.y() - 16), 32, 32).contains(mousep))
+            } else if( pixelToView(QRectF( (gridCenter.x() - 16), (gridCenter.y() - 16), 32, 32)).contains(mousep))
             {
                 dbgPlugins << " PRESS DELETE ICON";
                 pGrid->deleteSubGrid( grid );
@@ -246,7 +246,7 @@
         }
     }
     bool wasHiglightedNode = m_higlightedNode != 0;
-    QPointF mousep = viewToPixel( event->pos() );
+    QPointF mousep = event->pos();
     KisPerspectiveGrid* pGrid = m_canvas->view()->resourceProvider()->currentImage()->perspectiveGrid();
     for( QList<KisSubPerspectiveGrid*>::const_iterator it = pGrid->begin(); it != pGrid->end(); ++it)
     {
@@ -354,7 +354,7 @@
 
 void KisToolPerspectiveGrid::drawSmallRectangle(QPainter& gc, const QPointF& p)
 {
-    gc.drawRect( p.x() - m_handleHalfSize - 1, p.y() - m_handleHalfSize - 1, m_handleSize, m_handleSize);
+    gc.drawRect( p.x() - m_handleHalfSize, p.y() - m_handleHalfSize, m_handleSize, m_handleSize);
 }
 
 void KisToolPerspectiveGrid::drawGrid(QPainter& gc)