public PintaCanvas(CanvasWindow window, Document document)
{
CanvasWindow = window;
this.document = document;
cr = new CanvasRenderer(true);
// Keep the widget the same size as the canvas
document.Workspace.CanvasSizeChanged += delegate(object sender, EventArgs e) {
SetRequisition(document.Workspace.CanvasSize);
};
// Update the canvas when the image changes
document.Workspace.CanvasInvalidated += delegate(object sender, CanvasInvalidatedEventArgs e) {
// If GTK+ hasn't created the canvas window yet, no need to invalidate it
if (GdkWindow == null)
{
return;
}
if (e.EntireSurface)
{
GdkWindow.Invalidate();
}
else
{
GdkWindow.InvalidateRect(e.Rectangle, false);
}
};
// Give mouse press events to the current tool
ButtonPressEvent += delegate(object sender, ButtonPressEventArgs e) {
// The canvas gets the button press before the tab system, so
// if this click is on a canvas that isn't currently the ActiveDocument yet,
// we need to go ahead and make it the active document for the tools
// to use it, even though right after this the tab system would have switched it
if (PintaCore.Workspace.ActiveDocument != document)
{
PintaCore.Workspace.SetActiveDocument(document);
}
PintaCore.Tools.CurrentTool.DoMouseDown(this, e, document.Workspace.WindowPointToCanvas(e.Event.X, e.Event.Y));
};
// Give mouse release events to the current tool
ButtonReleaseEvent += delegate(object sender, ButtonReleaseEventArgs e) {
PintaCore.Tools.CurrentTool.DoMouseUp(this, e, document.Workspace.WindowPointToCanvas(e.Event.X, e.Event.Y));
};
// Give mouse move events to the current tool
MotionNotifyEvent += delegate(object sender, MotionNotifyEventArgs e) {
var point = document.Workspace.WindowPointToCanvas(e.Event.X, e.Event.Y);
if (document.Workspace.PointInCanvas(point))
{
PintaCore.Chrome.LastCanvasCursorPoint = point.ToGdkPoint();
}
if (PintaCore.Tools.CurrentTool != null)
{
PintaCore.Tools.CurrentTool.DoMouseMove((DrawingArea)sender, e, point);
}
};
}
public PintaCanvas()
{
cr = new CanvasRenderer();
// Keep the widget the same size as the canvas
PintaCore.Workspace.CanvasSizeChanged += delegate(object sender, EventArgs e) {
SetRequisition(PintaCore.Workspace.CanvasSize);
};
// Update the canvas when the image changes
PintaCore.Workspace.CanvasInvalidated += delegate(object sender, CanvasInvalidatedEventArgs e) {
if (e.EntireSurface)
{
GdkWindow.Invalidate();
}
else
{
GdkWindow.InvalidateRect(e.Rectangle, false);
}
};
// Give mouse press events to the current tool
ButtonPressEvent += delegate(object sender, ButtonPressEventArgs e) {
if (PintaCore.Workspace.HasOpenDocuments)
{
PintaCore.Tools.CurrentTool.DoMouseDown(this, e, PintaCore.Workspace.WindowPointToCanvas(e.Event.X, e.Event.Y));
}
};
// Give mouse release events to the current tool
ButtonReleaseEvent += delegate(object sender, ButtonReleaseEventArgs e) {
if (PintaCore.Workspace.HasOpenDocuments)
{
PintaCore.Tools.CurrentTool.DoMouseUp(this, e, PintaCore.Workspace.WindowPointToCanvas(e.Event.X, e.Event.Y));
}
};
// Give mouse move events to the current tool
MotionNotifyEvent += delegate(object sender, MotionNotifyEventArgs e) {
if (!PintaCore.Workspace.HasOpenDocuments)
{
return;
}
Cairo.PointD point = PintaCore.Workspace.ActiveWorkspace.WindowPointToCanvas(e.Event.X, e.Event.Y);
if (PintaCore.Workspace.ActiveWorkspace.PointInCanvas(point))
{
PintaCore.Chrome.LastCanvasCursorPoint = point.ToGdkPoint();
}
if (PintaCore.Tools.CurrentTool != null)
{
PintaCore.Tools.CurrentTool.DoMouseMove(sender, e, point);
}
};
// Handle key press/release events
KeyPressEvent += new KeyPressEventHandler(PintaCanvas_KeyPressEvent);
KeyReleaseEvent += new KeyReleaseEventHandler(PintaCanvas_KeyReleaseEvent);
}
