/// <summary>
/// Draws the text.
/// </summary>
/// <param name="showCursor">Whether or not to show the mouse cursor in the drawing.</param>
/// <param name="useTextLayer">Whether or not to use the TextLayer (as opposed to the Userlayer).</param>
private void RedrawText(bool showCursor, bool useTextLayer)
{
Rectangle r = CurrentTextLayout.GetLayoutBounds();
r.Inflate(10 + OutlineWidth, 10 + OutlineWidth);
InflateAndInvalidate(r);
CurrentTextBounds = r;
Rectangle cursorBounds = Rectangle.Zero;
Cairo.ImageSurface surf;
if (!useTextLayer)
{
//Draw text on the current UserLayer's surface as finalized text.
surf = PintaCore.Workspace.ActiveDocument.Layers.CurrentUserLayer.Surface;
}
else
{
//Draw text on the current UserLayer's TextLayer's surface as re-editable text.
surf = PintaCore.Workspace.ActiveDocument.Layers.CurrentUserLayer.TextLayer.Layer.Surface;
ClearTextLayer();
}
using (var g = new Cairo.Context(surf)) {
g.Save();
// Show selection if on text layer
if (useTextLayer)
{
// Selected Text
Cairo.Color c = new Cairo.Color(0.7, 0.8, 0.9, 0.5);
foreach (Rectangle rect in CurrentTextLayout.SelectionRectangles)
{
g.FillRectangle(rect.ToCairoRectangle(), c);
}
}
if (selection != null)
{
selection.Clip(g);
}
g.MoveTo(new Cairo.PointD(CurrentTextEngine.Origin.X, CurrentTextEngine.Origin.Y));
g.SetSourceColor(PintaCore.Palette.PrimaryColor);
//Fill in background
if (BackgroundFill)
{
using (var g2 = new Cairo.Context(surf)) {
if (selection != null)
{
selection.Clip(g2);
}
g2.FillRectangle(CurrentTextLayout.GetLayoutBounds().ToCairoRectangle(), PintaCore.Palette.SecondaryColor);
}
}
// Draw the text
if (FillText)
{
Pango.CairoHelper.ShowLayout(g, CurrentTextLayout.Layout);
}
if (FillText && StrokeText)
{
g.SetSourceColor(PintaCore.Palette.SecondaryColor);
g.LineWidth = OutlineWidth;
Pango.CairoHelper.LayoutPath(g, CurrentTextLayout.Layout);
g.Stroke();
}
else if (StrokeText)
{
g.SetSourceColor(PintaCore.Palette.PrimaryColor);
g.LineWidth = OutlineWidth;
Pango.CairoHelper.LayoutPath(g, CurrentTextLayout.Layout);
g.Stroke();
}
if (showCursor)
{
var loc = CurrentTextLayout.GetCursorLocation();
var color = PintaCore.Palette.PrimaryColor;
g.Antialias = Cairo.Antialias.None;
g.DrawLine(new Cairo.PointD(loc.X, loc.Y),
new Cairo.PointD(loc.X, loc.Y + loc.Height),
color, 1);
cursorBounds = Rectangle.Inflate(loc, 2, 10);
}
g.Restore();
if (useTextLayer && (is_editing || ctrlKey) && !CurrentTextEngine.IsEmpty())
{
//Draw the text edit rectangle.
g.Save();
g.Translate(.5, .5);
using (Cairo.Path p = g.CreateRectanglePath(CurrentTextBounds.ToCairoRectangle())) {
g.AppendPath(p);
}
g.LineWidth = 1;
g.SetSourceColor(new Cairo.Color(1, 1, 1));
g.StrokePreserve();
g.SetDash(new double[] { 2, 4 }, 0);
g.SetSourceColor(new Cairo.Color(1, .1, .2));
g.Stroke();
g.Restore();
}
}
InflateAndInvalidate(PintaCore.Workspace.ActiveDocument.Layers.CurrentUserLayer.previousTextBounds);
PintaCore.Workspace.Invalidate(old_cursor_bounds);
InflateAndInvalidate(r);
PintaCore.Workspace.Invalidate(cursorBounds);
old_cursor_bounds = cursorBounds;
}
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);
}
}
}
}
