/// <summary>
/// Finalize re-editable text (if applicable).
/// </summary>
public void FinalizeText()
{
//If this is true, don't finalize any text - this is used to prevent the code from looping recursively.
if (!ignoreCloneFinalizations)
{
//Only bother finalizing text if editing.
if (CurrentTextEngine.State != TextMode.Unchanged)
{
//Start ignoring any Surface.Clone calls from this point on (so that it doesn't start to loop).
ignoreCloneFinalizations = true;
Document doc = PintaCore.Workspace.ActiveDocument;
//Create a backup of everything before redrawing the text and etc.
Cairo.ImageSurface oldTextSurface = doc.Layers.CurrentUserLayer.TextLayer.Layer.Surface.Clone();
Cairo.ImageSurface oldUserSurface = doc.Layers.CurrentUserLayer.Surface.Clone();
TextEngine oldTextEngine = CurrentTextEngine.Clone();
//Draw the text onto the UserLayer (without the cursor) rather than the TextLayer.
RedrawText(false, false);
//Clear the TextLayer.
doc.Layers.CurrentUserLayer.TextLayer.Layer.Clear();
//Clear the text and its boundaries.
CurrentTextEngine.Clear();
CurrentTextBounds = Gdk.Rectangle.Zero;
//Create a new TextHistoryItem so that the finalization of the text can be undone. Construct
//it on the spot so that it is more memory efficient if the changes are small.
TextHistoryItem hist = new TextHistoryItem(Icon, FinalizeName, oldTextSurface, oldUserSurface,
oldTextEngine, doc.Layers.CurrentUserLayer);
//Add the new TextHistoryItem.
doc.History.PushNewItem(hist);
//Stop ignoring any Surface.Clone calls from this point on.
ignoreCloneFinalizations = false;
//Now that the text has been finalized, change its state.
CurrentTextEngine.State = TextMode.Unchanged;
if (selection != null)
{
selection.Dispose();
selection = null;
}
}
}
}
protected override void OnMouseDown(Document document, ToolMouseEventArgs e)
{
ctrlKey = e.IsControlPressed;
//Store the mouse position.
Point pt = e.PointDouble.ToGdkPoint();
// Grab focus so we can get keystrokes
imContext.FocusIn();
if (selection != null)
{
selection.Dispose();
}
selection = document.Selection.Clone();
// A right click allows you to move the text around
if (e.MouseButton == MouseButton.Right)
{
//The user is dragging text with the right mouse button held down, so track the mouse as it moves.
tracking = true;
//Remember the position of the mouse before the text is dragged.
startMouseXY = e.PointDouble;
startClickPoint = clickPoint;
//Change the cursor to indicate that the text is being dragged.
SetCursor(cursor_hand);
return;
}
// The user clicked the left mouse button
if (e.MouseButton == MouseButton.Left)
{
// If the user is [editing or holding down Ctrl] and clicked
//within the text, move the cursor to the click location
if ((is_editing || ctrlKey) && CurrentTextBounds.ContainsCorrect(pt))
{
StartEditing();
//Change the position of the cursor to where the mouse clicked.
TextPosition p = CurrentTextLayout.PointToTextPosition(pt);
CurrentTextEngine.SetCursorPosition(p, true);
//Redraw the text with the new cursor position.
RedrawText(true, true);
return;
}
// We're already editing and the user clicked outside the text,
// commit the user's work, and start a new edit
switch (CurrentTextEngine.State)
{
// We were editing, save and stop
case TextMode.Uncommitted:
StopEditing(true);
break;
// We were editing, but nothing had been
// keyed. Stop editing.
case TextMode.Unchanged:
StopEditing(false);
break;
}
if (ctrlKey)
{
//Go through every UserLayer.
foreach (UserLayer ul in document.Layers.UserLayers)
{
//Check each UserLayer's editable text boundaries to see if they contain the mouse position.
if (ul.textBounds.ContainsCorrect(pt))
{
//The mouse clicked on editable text.
//Change the current UserLayer to the Layer that contains the text that was clicked on.
document.Layers.SetCurrentUserLayer(ul);
//The user is editing text now.
is_editing = true;
//Set the cursor in the editable text where the mouse was clicked.
TextPosition p = CurrentTextLayout.PointToTextPosition(pt);
CurrentTextEngine.SetCursorPosition(p, true);
//Redraw the editable text with the cursor.
RedrawText(true, true);
//Don't check any more UserLayers - stop at the first UserLayer that has editable text containing the mouse position.
return;
}
}
}
else
{
if (CurrentTextEngine.State == TextMode.NotFinalized)
{
//The user is making a new text and the old text hasn't been finalized yet.
FinalizeText();
}
if (!is_editing)
{
// Start editing at the cursor location
clickPoint = pt;
CurrentTextEngine.Clear();
UpdateFont();
clickPoint.Offset(0, -CurrentTextLayout.FontHeight / 2);
CurrentTextEngine.Origin = clickPoint;
StartEditing();
RedrawText(true, true);
}
}
}
}
protected override void OnMouseDown(DrawingArea canvas, ButtonPressEventArgs args, Cairo.PointD point)
{
ctrlKey = (args.Event.State & ModifierType.ControlMask) != 0;
//Store the mouse position.
Point pt = point.ToGdkPoint();
// Grab focus so we can get keystrokes
PintaCore.Chrome.Canvas.GrabFocus();
if (selection != null)
{
selection.DisposeSelection();
}
selection = PintaCore.Workspace.ActiveDocument.Selection.Clone();
// A right click allows you to move the text around
if (args.Event.Button == 3)
{
//The user is dragging text with the right mouse button held down, so track the mouse as it moves.
tracking = true;
//Remember the position of the mouse before the text is dragged.
startMouseXY = point;
startClickPoint = clickPoint;
//Change the cursor to indicate that the text is being dragged.
SetCursor(cursor_hand);
return;
}
// The user clicked the left mouse button
if (args.Event.Button == 1)
{
// If the user is [editing or holding down Ctrl] and clicked
//within the text, move the cursor to the click location
if ((is_editing || ctrlKey) && CurrentTextBounds.ContainsCorrect(pt))
{
StartEditing();
//Change the position of the cursor to where the mouse clicked.
Position p = CurrentTextEngine.PointToTextPosition(pt);
CurrentTextEngine.SetCursorPosition(p, true);
//Redraw the text with the new cursor position.
RedrawText(true, true);
return;
}
// We're already editing and the user clicked outside the text,
// commit the user's work, and start a new edit
switch (CurrentTextEngine.EditMode)
{
// We were editing, save and stop
case EditingMode.Editing:
StopEditing(true);
break;
// We were editing, but nothing had been
// keyed. Stop editing.
case EditingMode.EmptyEdit:
StopEditing(false);
break;
}
if (ctrlKey)
{
//Go through every UserLayer.
foreach (UserLayer ul in PintaCore.Workspace.ActiveDocument.UserLayers)
{
//Check each UserLayer's editable text boundaries to see if they contain the mouse position.
if (ul.textBounds.ContainsCorrect(pt))
{
//The mouse clicked on editable text.
//Change the current UserLayer to the Layer that contains the text that was clicked on.
PintaCore.Workspace.ActiveDocument.SetCurrentUserLayer(ul);
//The user is editing text now.
is_editing = true;
//Set the cursor in the editable text where the mouse was clicked.
Position p = CurrentTextEngine.PointToTextPosition(pt);
CurrentTextEngine.SetCursorPosition(p, true);
//Redraw the editable text with the cursor.
RedrawText(true, true);
//Don't check any more UserLayers - stop at the first UserLayer that has editable text containing the mouse position.
return;
}
}
}
else
{
if (CurrentTextEngine.textMode == TextMode.NotFinalized)
{
//The user is making a new text and the old text hasn't been finalized yet.
FinalizeText();
}
if (!is_editing)
{
// Start editing at the cursor location
clickPoint = pt;
CurrentTextEngine.Clear();
clickPoint.Offset(0, -CurrentTextEngine.FontHeight / 2);
CurrentTextEngine.Origin = clickPoint;
StartEditing();
RedrawText(true, true);
}
}
}
}