public void HandleSelectionMouseDown(IDesignPanel designPanel, MouseButtonEventArgs e, DesignPanelHitTestResult result)
{
if (e.ChangedButton == MouseButton.Left && MouseGestureBase.IsOnlyButtonPressed(e, MouseButton.Left)) {
e.Handled = true;
new RangeSelectionGesture(result.ModelHit).Start(designPanel, e);
}
}
/// <summary>
/// Performs a hit test on the design surface, raising <paramref name="callback"/> for each match.
/// Hit testing continues while the callback returns true.
/// </summary>
public void HitTest(Point mousePosition, bool testAdorners, bool testDesignSurface, Predicate<DesignPanelHitTestResult> callback, HitTestType hitTestType)
{
if (mousePosition.X < 0 || mousePosition.Y < 0 || mousePosition.X > this.RenderSize.Width || mousePosition.Y > this.RenderSize.Height) {
return;
}
// First try hit-testing on the adorner layer.
bool continueHitTest = true;
HitTestFilterCallback filterBehavior = CustomHitTestFilterBehavior ?? (x => FilterHitTestInvisibleElements(x, hitTestType));
CustomHitTestFilterBehavior = null;
if (testAdorners) {
RunHitTest(
_adornerLayer, mousePosition, filterBehavior,
delegate(HitTestResult result) {
if (result != null && result.VisualHit != null && result.VisualHit is Visual) {
DesignPanelHitTestResult customResult = new DesignPanelHitTestResult((Visual)result.VisualHit);
DependencyObject obj = result.VisualHit;
while (obj != null && obj != _adornerLayer) {
AdornerPanel adorner = obj as AdornerPanel;
if (adorner != null) {
customResult.AdornerHit = adorner;
}
obj = VisualTreeHelper.GetParent(obj);
}
continueHitTest = callback(customResult);
return continueHitTest ? HitTestResultBehavior.Continue : HitTestResultBehavior.Stop;
} else {
return HitTestResultBehavior.Continue;
}
});
}
if (continueHitTest && testDesignSurface) {
RunHitTest(
this.Child, mousePosition, filterBehavior,
delegate(HitTestResult result) {
if (result != null && result.VisualHit != null && result.VisualHit is Visual) {
DesignPanelHitTestResult customResult = new DesignPanelHitTestResult((Visual)result.VisualHit);
ViewService viewService = _context.Services.View;
DependencyObject obj = result.VisualHit;
while (obj != null) {
if ((customResult.ModelHit = viewService.GetModel(obj)) != null)
break;
obj = VisualTreeHelper.GetParent(obj);
}
if (customResult.ModelHit == null) {
customResult.ModelHit = _context.RootItem;
}
continueHitTest = callback(customResult);
return continueHitTest ? HitTestResultBehavior.Continue : HitTestResultBehavior.Stop;
} else {
return HitTestResultBehavior.Continue;
}
}
);
}
}
void MouseUp(object sender,MouseEventArgs e)
{
result = designPanel.HitTest(e.GetPosition(designPanel), false, true);
if (result.ModelHit == ExtendedItem && result.VisualHit is TextBlock && numClicks>0){
if (!isGettingDragged) {
PlaceEditor(result.VisualHit, e);
editor.Visibility = Visibility.Visible;
}
}else{ // Clicked outside the Text - > hide the editor and make the actualt text visible again
editor.Visibility = Visibility.Hidden;
if (textBlock != null) textBlock.Visibility = Visibility.Visible;
}
isMouseDown = false;
isGettingDragged = false;
}
void MouseMove(object sender, MouseEventArgs e)
{
Current += e.GetPosition(null) - Start;
result = designPanel.HitTest(e.GetPosition(designPanel), false, true);
if (result.ModelHit == ExtendedItem && result.VisualHit is TextBlock) {
if (numClicks > 0) {
if (isMouseDown &&
((Current-Start).X > SystemParameters.MinimumHorizontalDragDistance
|| (Current-Start).Y > SystemParameters.MinimumVerticalDragDistance)) {
isGettingDragged = true;
editor.Focus();
}
}
DrawBorder((FrameworkElement) result.VisualHit);
}else{
RemoveBorder();
}
}
void MouseDown(object sender,MouseEventArgs e)
{
result = designPanel.HitTest(e.GetPosition(designPanel), false, true);
if(result.ModelHit==ExtendedItem && result.VisualHit is TextBlock) {
Start = Mouse.GetPosition(null);
Current = Start;
isMouseDown = true;
}
numClicks++;
}
/// <summary>
/// Performs a hit test on the design surface, raising <paramref name="callback"/> for each match.
/// Hit testing continues while the callback returns true.
/// </summary>
public void HitTest(Point mousePosition, bool testAdorners, bool testDesignSurface, Predicate<DesignPanelHitTestResult> callback, HitTestType hitTestType)
{
if (mousePosition.X < 0 || mousePosition.Y < 0 || mousePosition.X > this.RenderSize.Width || mousePosition.Y > this.RenderSize.Height) {
return;
}
// First try hit-testing on the adorner layer.
bool continueHitTest = true;
hitTestElements.Clear();
if (testAdorners) {
RunHitTest(
_adornerLayer, mousePosition, FilterHitTestInvisibleElements,
delegate(HitTestResult result) {
if (result != null && result.VisualHit != null && result.VisualHit is Visual) {
DesignPanelHitTestResult customResult = new DesignPanelHitTestResult((Visual)result.VisualHit);
DependencyObject obj = result.VisualHit;
while (obj != null && obj != _adornerLayer) {
AdornerPanel adorner = obj as AdornerPanel;
if (adorner != null) {
customResult.AdornerHit = adorner;
}
obj = VisualTreeHelper.GetParent(obj);
}
continueHitTest = callback(customResult);
return continueHitTest ? HitTestResultBehavior.Continue : HitTestResultBehavior.Stop;
} else {
return HitTestResultBehavior.Continue;
}
});
}
if (continueHitTest && testDesignSurface) {
RunHitTest(
this.Child, mousePosition, FilterHitTestInvisibleElements,
delegate(HitTestResult result) {
if (result != null && result.VisualHit != null && result.VisualHit is Visual) {
DesignPanelHitTestResult customResult = new DesignPanelHitTestResult((Visual)result.VisualHit);
ViewService viewService = _context.Services.View;
DependencyObject obj = result.VisualHit;
if (hitTestType == HitTestType.ElementSelection)
{
if (Keyboard.IsKeyDown(Key.LeftAlt))
if (lastElement != null && lastElement != _context.RootItem.Component &&
hitTestElements.Contains(lastElement))
{
var idx = hitTestElements.IndexOf(lastElement) - 1;
if (idx >= 0)
obj = hitTestElements[idx];
}
}
while (obj != null) {
if ((customResult.ModelHit = viewService.GetModel(obj)) != null)
break;
obj = VisualTreeHelper.GetParent(obj);
}
if (customResult.ModelHit == null) {
customResult.ModelHit = _context.RootItem;
}
if (hitTestType == HitTestType.ElementSelection)
{
lastElement = obj;
}
continueHitTest = callback(customResult);
return continueHitTest ? HitTestResultBehavior.Continue : HitTestResultBehavior.Stop;
} else {
return HitTestResultBehavior.Continue;
}
}
);
}
}
/// <summary>
/// Performs a hit test on the design surface, raising <paramref name="callback"/> for each match.
/// Hit testing continues while the callback returns true.
/// </summary>
public void HitTest(Point mousePosition, bool testAdorners, bool testDesignSurface,
Predicate <DesignPanelHitTestResult> callback, HitTestType hitTestType)
{
if (mousePosition.X < 0 || mousePosition.Y < 0 || mousePosition.X > this.RenderSize.Width ||
mousePosition.Y > this.RenderSize.Height)
{
return;
}
// First try hit-testing on the adorner layer.
bool continueHitTest = true;
HitTestFilterCallback filterBehavior = CustomHitTestFilterBehavior ??
(x => FilterHitTestInvisibleElements(x, hitTestType));
CustomHitTestFilterBehavior = null;
if (testAdorners)
{
RunHitTest(
_adornerLayer, mousePosition, filterBehavior,
delegate(HitTestResult result)
{
if (result != null && result.VisualHit != null && result.VisualHit is Visual)
{
DesignPanelHitTestResult customResult =
new DesignPanelHitTestResult((Visual)result.VisualHit);
DependencyObject obj = result.VisualHit;
while (obj != null && obj != _adornerLayer)
{
AdornerPanel adorner = obj as AdornerPanel;
if (adorner != null)
{
customResult.AdornerHit = adorner;
}
obj = VisualTreeHelper.GetParent(obj);
}
continueHitTest = callback(customResult);
return(continueHitTest ? HitTestResultBehavior.Continue : HitTestResultBehavior.Stop);
}
else
{
return(HitTestResultBehavior.Continue);
}
});
}
if (continueHitTest && testDesignSurface)
{
RunHitTest(
this.Child, mousePosition, filterBehavior,
delegate(HitTestResult result)
{
if (result != null && result.VisualHit != null && result.VisualHit is Visual)
{
DesignPanelHitTestResult customResult =
new DesignPanelHitTestResult((Visual)result.VisualHit);
ViewService viewService = _context.Services.View;
DependencyObject obj = result.VisualHit;
while (obj != null)
{
if ((customResult.ModelHit = viewService.GetModel(obj)) != null)
{
break;
}
obj = VisualTreeHelper.GetParent(obj);
}
if (customResult.ModelHit == null)
{
customResult.ModelHit = _context.RootItem;
}
continueHitTest = callback(customResult);
return(continueHitTest ? HitTestResultBehavior.Continue : HitTestResultBehavior.Stop);
}
else
{
return(HitTestResultBehavior.Continue);
}
}
);
}
}
void designPanel_DragOver(object sender, DragEventArgs e)
{
try {
IDesignPanel designPanel = (IDesignPanel)sender;
e.Effects = DragDropEffects.Copy;
e.Handled = true;
Point p = e.GetPosition(designPanel);
if (moveLogic == null)
{
if (e.Data.GetData(this.GetType()) != this)
{
return;
}
// TODO: dropLayer in designPanel
designPanel.IsAdornerLayerHitTestVisible = false;
DesignPanelHitTestResult result = designPanel.HitTest(p, false, true, HitTestType.Default);
if (result.ModelHit != null)
{
designPanel.Focus();
var items = CreateItemsWithPosition(designPanel.Context, e.GetPosition(result.ModelHit.View));
if (items != null)
{
if (AddItemsWithDefaultSize(result.ModelHit, items))
{
moveLogic = new MoveLogic(items[0]);
foreach (var designItem in items)
{
if (designPanel.Context.Services.Component is XamlComponentService)
{
((XamlComponentService)designPanel.Context.Services.Component).RaiseComponentRegisteredAndAddedToContainer(designItem);
}
}
createPoint = p;
// We'll keep the ChangeGroup open as long as the moveLogic is active.
}
else
{
// Abort the ChangeGroup created by the CreateItem() call.
ChangeGroup.Abort();
}
}
else
{
DesignItem createdItem = CreateItemWithPosition(designPanel.Context, e.GetPosition(result.ModelHit.View));
if (AddItemsWithDefaultSize(result.ModelHit, new[] { createdItem }))
{
moveLogic = new MoveLogic(createdItem);
if (designPanel.Context.Services.Component is XamlComponentService)
{
((XamlComponentService)designPanel.Context.Services.Component).RaiseComponentRegisteredAndAddedToContainer(createdItem);
}
createPoint = p;
// We'll keep the ChangeGroup open as long as the moveLogic is active.
}
else
{
// Abort the ChangeGroup created by the CreateItem() call.
ChangeGroup.Abort();
}
}
}
}
else if ((moveLogic.ClickedOn.View as FrameworkElement).IsLoaded)
{
if (moveLogic.Operation == null)
{
moveLogic.Start(createPoint);
}
else
{
moveLogic.Move(p);
}
}
} catch (Exception x) {
DragDropExceptionHandler.RaiseUnhandledException(x);
}
}
void MouseUp(object sender, MouseEventArgs e)
{
result = designPanel.HitTest(e.GetPosition(designPanel), true, true, HitTestType.Default);
if (((result.ModelHit == ExtendedItem && result.VisualHit is TextBlock) || (result.VisualHit != null && result.VisualHit.TryFindParent<InPlaceEditor>() == editor)) && numClicks > 0)
{
if (!isGettingDragged) {
PlaceEditor(ExtendedItem.View, e);
foreach (var extension in ExtendedItem.Extensions)
{
if (!(extension is InPlaceEditorExtension) && !(extension is SelectedElementRectangleExtension)) {
ExtendedItem.RemoveExtension(extension);
}
}
editor.Visibility = Visibility.Visible;
}
}
else { // Clicked outside the Text - > hide the editor and make the actualt text visible again
editor.Visibility = Visibility.Hidden;
if (textBlock != null) {
textBlock.Visibility = Visibility.Visible;
}
this.ExtendedItem.ReapplyAllExtensions();
}
isMouseDown = false;
isGettingDragged = false;
}
public new void HandleSelectionMouseDown(IDesignPanel designPanel, MouseButtonEventArgs e, DesignPanelHitTestResult result)
{
if (e.ChangedButton == MouseButton.Left && MouseGestureBase.IsOnlyButtonPressed(e, MouseButton.Left))
{
e.Handled = true;
new PartialRangeSelectionGesture(result.ModelHit).Start(designPanel, e);
}
}
/// <summary>
/// Performs a hit test on the design surface, raising <paramref name="callback"/> for each match.
/// Hit testing continues while the callback returns true.
/// </summary>
public void HitTest(Point mousePosition, bool testAdorners, bool testDesignSurface, Predicate <DesignPanelHitTestResult> callback, HitTestType hitTestType)
{
if (mousePosition.X < 0 || mousePosition.Y < 0 || mousePosition.X > this.RenderSize.Width || mousePosition.Y > this.RenderSize.Height)
{
return;
}
// First try hit-testing on the adorner layer.
bool continueHitTest = true;
HitTestFilterCallback filterBehavior = CustomHitTestFilterBehavior ?? FilterHitTestInvisibleElements;
CustomHitTestFilterBehavior = null;
hitTestElements.Clear();
if (testAdorners)
{
RunHitTest(
_adornerLayer, mousePosition, filterBehavior,
delegate(HitTestResult result) {
if (result != null && result.VisualHit != null && result.VisualHit is Visual)
{
DesignPanelHitTestResult customResult = new DesignPanelHitTestResult((Visual)result.VisualHit);
DependencyObject obj = result.VisualHit;
while (obj != null && obj != _adornerLayer)
{
AdornerPanel adorner = obj as AdornerPanel;
if (adorner != null)
{
customResult.AdornerHit = adorner;
}
obj = VisualTreeHelper.GetParent(obj);
}
continueHitTest = callback(customResult);
return(continueHitTest ? HitTestResultBehavior.Continue : HitTestResultBehavior.Stop);
}
else
{
return(HitTestResultBehavior.Continue);
}
});
}
if (continueHitTest && testDesignSurface)
{
RunHitTest(
this.Child, mousePosition, filterBehavior,
delegate(HitTestResult result) {
if (result != null && result.VisualHit != null && result.VisualHit is Visual)
{
DesignPanelHitTestResult customResult = new DesignPanelHitTestResult((Visual)result.VisualHit);
ViewService viewService = _context.Services.View;
DependencyObject obj = result.VisualHit;
if (hitTestType == HitTestType.ElementSelection)
{
if (Keyboard.IsKeyDown(Key.LeftAlt))
{
if (lastElement != null && lastElement != _context.RootItem.Component &&
hitTestElements.Contains(lastElement))
{
var idx = hitTestElements.IndexOf(lastElement) - 1;
if (idx >= 0)
{
obj = hitTestElements[idx];
}
}
}
}
while (obj != null)
{
if ((customResult.ModelHit = viewService.GetModel(obj)) != null)
{
break;
}
obj = VisualTreeHelper.GetParent(obj);
}
if (customResult.ModelHit == null)
{
customResult.ModelHit = _context.RootItem;
}
if (hitTestType == HitTestType.ElementSelection)
{
lastElement = obj;
}
continueHitTest = callback(customResult);
return(continueHitTest ? HitTestResultBehavior.Continue : HitTestResultBehavior.Stop);
}
else
{
return(HitTestResultBehavior.Continue);
}
}
);
}
}
