/// <summary>
/// Draws a geometry.
/// </summary>
/// <param name="brush">The fill brush.</param>
/// <param name="pen">The stroke pen.</param>
/// <param name="geometry">The geometry.</param>
public void DrawGeometry(Brush brush, Pen pen, Geometry geometry)
{
var impl = geometry.PlatformImpl as StreamGeometryImpl;
var oldMatrix = Transform;
Transform = impl.Transform * Transform;
if (brush != null)
{
_context.AppendPath(impl.Path);
using (var b = SetBrush(brush, geometry.Bounds.Size))
{
if (pen != null)
{
_context.FillPreserve();
}
else
{
_context.Fill();
}
}
}
Transform = oldMatrix;
if (pen != null)
{
_context.AppendPath(impl.Path);
using (var p = SetPen(pen, geometry.Bounds.Size))
{
_context.Stroke();
}
}
}
// Called from asynchronously from Renderer.OnCompletion ()
void HandleApply ()
{
Debug.WriteLine ("LivePreviewManager.HandleApply()");
var item = new SimpleHistoryItem (effect.Icon, effect.Name);
item.TakeSnapshotOfLayer (PintaCore.Layers.CurrentLayerIndex);
using (var ctx = new Cairo.Context (layer.Surface)) {
ctx.Save ();
ctx.AppendPath (PintaCore.Layers.SelectionPath);
ctx.FillRule = Cairo.FillRule.EvenOdd;
ctx.Clip ();
ctx.Operator = Cairo.Operator.Source;
ctx.SetSourceSurface (live_preview_surface, (int)layer.Offset.X, (int)layer.Offset.Y);
ctx.Paint ();
ctx.Restore ();
}
PintaCore.History.PushNewItem (item);
FireLivePreviewEndedEvent(RenderStatus.Completed, null);
live_preview_enabled = false;
PintaCore.Workspace.Invalidate (); //TODO keep track of dirty bounds.
CleanUp ();
}
/// <summary>
/// Draws a geometry.
/// </summary>
/// <param name="brush">The fill brush.</param>
/// <param name="pen">The stroke pen.</param>
/// <param name="geometry">The geometry.</param>
public void DrawGeometry(Brush brush, Pen pen, Geometry geometry)
{
var impl = geometry.PlatformImpl as StreamGeometryImpl;
using (var pop = PushTransform(impl.Transform))
{
_context.AppendPath(impl.Path);
if (brush != null)
{
SetBrush(brush, geometry.Bounds.Size);
if (pen != null)
{
_context.FillPreserve();
}
else
{
_context.Fill();
}
}
if (pen != null)
{
SetPen(pen, geometry.Bounds.Size);
_context.Stroke();
}
}
}
public override void AppendPath(object backend, object otherBackend)
{
Cairo.Context dest = ((CairoContextBackend)backend).Context;
Cairo.Context src = ((CairoContextBackend)otherBackend).Context;
using (var path = src.CopyPath())
dest.AppendPath(path);
}
internal bool FillContains(Point point)
{
using (var context = new Cairo.Context(new Cairo.ImageSurface(Cairo.Format.Argb32, 0, 0)))
{
context.AppendPath(Path);
return(context.InFill(point.X, point.Y));
}
}
internal bool FillContains(Point point)
{
using (var context = new Cairo.Context(new Cairo.ImageSurface(Cairo.Format.Argb32, 0, 0)))
{
context.AppendPath(Path);
return context.InFill(point.X, point.Y);
}
}
public StreamGeometryContextImpl(Cairo.Path path = null)
{
_surf = new Cairo.ImageSurface(Cairo.Format.Argb32, 0, 0);
_context = new Cairo.Context(_surf);
this.Path = path;
if (this.Path != null)
{
_context.AppendPath(this.Path);
}
}
public StreamGeometryContextImpl(Cairo.Path path = null)
{
_surf = new Cairo.ImageSurface (Cairo.Format.Argb32, 0, 0);
_context = new Cairo.Context (_surf);
this.Path = path;
if (this.Path != null)
{
_context.AppendPath(this.Path);
}
}
/// <summary>
/// Draws a geometry.
/// </summary>
/// <param name="brush">The fill brush.</param>
/// <param name="pen">The stroke pen.</param>
/// <param name="geometry">The geometry.</param>
public void DrawGeometry(IBrush brush, Pen pen, IGeometryImpl geometry)
{
var impl = geometry as StreamGeometryImpl;
var oldMatrix = Transform;
Transform = impl.Transform * Transform;
if (brush != null)
{
_context.AppendPath(impl.Path);
using (var b = SetBrush(brush, geometry.Bounds.Size))
{
_context.FillRule = impl.FillRule == FillRule.EvenOdd
? Cairo.FillRule.EvenOdd
: Cairo.FillRule.Winding;
if (pen != null)
{
_context.FillPreserve();
}
else
{
_context.Fill();
}
}
}
Transform = oldMatrix;
if (pen != null)
{
_context.AppendPath(impl.Path);
using (var p = SetPen(pen, geometry.Bounds.Size))
{
_context.Stroke();
}
}
}
// Used by the workspace drawing area expose render loop.
// Takes care of the clipping.
public void RenderLivePreviewLayer(Cairo.Context ctx, double opacity)
{
if (!IsEnabled)
{
throw new InvalidOperationException("Tried to render a live preview after live preview has ended.");
}
// TODO remove seam around selection during live preview.
ctx.Save();
if (selection_path != null)
{
// Paint area outsize of the selection path, with the pre-effect image.
var imageSize = PintaCore.Workspace.ImageSize;
ctx.Rectangle(0, 0, imageSize.Width, imageSize.Height);
ctx.AppendPath(selection_path);
ctx.Clip();
ctx.SetSourceSurface(layer.Surface, (int)layer.Offset.X, (int)layer.Offset.Y);
ctx.PaintWithAlpha(opacity);
ctx.ResetClip();
// Paint area inside the selection path, with the post-effect image.
ctx.AppendPath(selection_path);
ctx.Clip();
ctx.SetSourceSurface(live_preview_surface, (int)layer.Offset.X, (int)layer.Offset.Y);
ctx.PaintWithAlpha(opacity);
ctx.AppendPath(selection_path);
ctx.FillRule = Cairo.FillRule.EvenOdd;
ctx.Clip();
}
else
{
ctx.SetSourceSurface(live_preview_surface, (int)layer.Offset.X, (int)layer.Offset.Y);
ctx.PaintWithAlpha(opacity);
}
ctx.Restore();
}
/// <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 = CurrentTextEngine.GetLayoutBounds();
r.Inflate(10 + OutlineWidth, 10 + OutlineWidth);
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.CurrentUserLayer.Surface;
}
else
{
//Draw text on the current UserLayer's TextLayer's surface as re-editable text.
surf = PintaCore.Workspace.ActiveDocument.CurrentUserLayer.TextLayer.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 CurrentTextEngine.SelectionRectangles)
g.FillRectangle (rect.ToCairoRectangle (), c);
}
g.AppendPath (PintaCore.Workspace.ActiveDocument.Selection.SelectionPath);
g.FillRule = Cairo.FillRule.EvenOdd;
g.Clip ();
g.MoveTo (new Cairo.PointD (CurrentTextEngine.Origin.X, CurrentTextEngine.Origin.Y));
g.Color = PintaCore.Palette.PrimaryColor;
//Fill in background
if (BackgroundFill) {
using (var g2 = new Cairo.Context (surf)) {
g2.FillRectangle(CurrentTextEngine.GetLayoutBounds().ToCairoRectangle(), PintaCore.Palette.SecondaryColor);
}
}
// Draw the text
if (FillText)
Pango.CairoHelper.ShowLayout (g, CurrentTextEngine.Layout);
if (FillText && StrokeText) {
g.Color = PintaCore.Palette.SecondaryColor;
g.LineWidth = OutlineWidth;
Pango.CairoHelper.LayoutPath (g, CurrentTextEngine.Layout);
g.Stroke ();
} else if (StrokeText) {
g.Color = PintaCore.Palette.PrimaryColor;
g.LineWidth = OutlineWidth;
Pango.CairoHelper.LayoutPath (g, CurrentTextEngine.Layout);
g.Stroke ();
}
if (showCursor) {
var loc = CurrentTextEngine.GetCursorLocation ();
g.Antialias = Cairo.Antialias.None;
g.DrawLine (new Cairo.PointD (loc.X, loc.Y), new Cairo.PointD (loc.X, loc.Y + loc.Height), new Cairo.Color (0, 0, 0, 1), 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(new Cairo.Rectangle(CurrentTextBounds.Left, CurrentTextBounds.Top,
CurrentTextBounds.Width, CurrentTextBounds.Height - FontSize)))
{
g.AppendPath(p);
}
g.LineWidth = 1;
g.Color = new Cairo.Color(1, 1, 1);
g.StrokePreserve();
g.SetDash(new double[] { 2, 4 }, 0);
g.Color = new Cairo.Color(1, .1, .2);
g.Stroke();
g.Restore();
}
}
InflateAndInvalidate(PintaCore.Workspace.ActiveDocument.CurrentUserLayer.previousTextBounds);
PintaCore.Workspace.Invalidate(old_cursor_bounds);
PintaCore.Workspace.Invalidate(r);
PintaCore.Workspace.Invalidate(cursorBounds);
old_cursor_bounds = cursorBounds;
}
private void RedrawText(bool showCursor, bool useToolLayer)
{
Cairo.ImageSurface surf;
var invalidate_cursor = old_cursor_bounds;
if (!useToolLayer)
{
surf = PintaCore.Workspace.ActiveDocument.CurrentLayer.Surface;
}
else
{
surf = PintaCore.Workspace.ActiveDocument.ToolLayer.Surface;
surf.Clear();
}
using (var g = new Cairo.Context(surf)) {
g.Save();
g.AppendPath(PintaCore.Workspace.ActiveDocument.SelectionPath);
g.FillRule = Cairo.FillRule.EvenOdd;
g.Clip();
g.MoveTo(new Cairo.PointD(engine.Origin.X, engine.Origin.Y));
g.Color = PintaCore.Palette.PrimaryColor;
//Fill in background
if (BackgroundFill)
{
using (var g2 = new Cairo.Context(surf)) {
g2.FillRectangle(engine.GetLayoutBounds().ToCairoRectangle(), PintaCore.Palette.SecondaryColor);
}
}
// Draw the text
if (FillText)
{
Pango.CairoHelper.ShowLayout(g, engine.Layout);
}
if (FillText && StrokeText)
{
g.Color = PintaCore.Palette.SecondaryColor;
g.LineWidth = OutlineWidth;
Pango.CairoHelper.LayoutPath(g, engine.Layout);
g.Stroke();
}
else if (StrokeText)
{
g.Color = PintaCore.Palette.PrimaryColor;
g.LineWidth = OutlineWidth;
Pango.CairoHelper.LayoutPath(g, engine.Layout);
g.Stroke();
}
if (showCursor)
{
var loc = engine.GetCursorLocation();
g.Antialias = Cairo.Antialias.None;
g.DrawLine(new Cairo.PointD(loc.X, loc.Y), new Cairo.PointD(loc.X, loc.Y + loc.Height), new Cairo.Color(0, 0, 0, 1), 1);
loc.Inflate(2, 10);
old_cursor_bounds = loc;
}
g.Restore();
}
Rectangle r = engine.GetLayoutBounds();
r.Inflate(10 + OutlineWidth, 10 + OutlineWidth);
PintaCore.Workspace.Invalidate(old_bounds);
PintaCore.Workspace.Invalidate(invalidate_cursor);
PintaCore.Workspace.Invalidate(r);
old_bounds = r;
}
private void RedrawText(bool showCursor, bool useToolLayer)
{
Cairo.ImageSurface surf;
var invalidate_cursor = old_cursor_bounds;
if (!useToolLayer)
surf = PintaCore.Workspace.ActiveDocument.CurrentLayer.Surface;
else {
surf = PintaCore.Workspace.ActiveDocument.ToolLayer.Surface;
surf.Clear ();
}
using (var g = new Cairo.Context (surf)) {
g.Save ();
// Show selection if on tool layer
if (useToolLayer) {
// Selected Text
Cairo.Color c = new Cairo.Color (0.7, 0.8, 0.9, 0.5);
foreach (Rectangle rect in engine.SelectionRectangles)
g.FillRectangle (rect.ToCairoRectangle (), c);
}
g.AppendPath (PintaCore.Workspace.ActiveDocument.SelectionPath);
g.FillRule = Cairo.FillRule.EvenOdd;
g.Clip ();
g.MoveTo (new Cairo.PointD (engine.Origin.X, engine.Origin.Y));
g.Color = PintaCore.Palette.PrimaryColor;
if (BackgroundFill) {
using (var g2 = new Cairo.Context (surf)) {
g2.FillRectangle (engine.GetLayoutBounds ().ToCairoRectangle (),PintaCore.Palette.SecondaryColor);
}
}
if (FillText) {
Pango.CairoHelper.ShowLayout (g, engine.Layout);
}
if (FillText && StrokeText) {
g.Color = PintaCore.Palette.SecondaryColor;
g.LineWidth = OutlineWidth;
Pango.CairoHelper.LayoutPath (g, engine.Layout);
g.Stroke ();
} else if (StrokeText) {
g.Color = PintaCore.Palette.PrimaryColor;
g.LineWidth = OutlineWidth;
Pango.CairoHelper.LayoutPath (g, engine.Layout);
g.Stroke ();
}
if (showCursor) {
var loc = engine.GetCursorLocation ();
g.Antialias = Cairo.Antialias.None;
g.DrawLine (new Cairo.PointD (loc.X, loc.Y), new Cairo.PointD (loc.X, loc.Y + loc.Height), new Cairo.Color (0, 0, 0, 1), 1);
loc.Inflate (2, 10);
old_cursor_bounds = loc;
}
g.Restore ();
}
Rectangle r = engine.GetLayoutBounds ();
r.Inflate (10 + OutlineWidth, 10 + OutlineWidth);
PintaCore.Workspace.Invalidate (old_bounds);
PintaCore.Workspace.Invalidate (invalidate_cursor);
PintaCore.Workspace.Invalidate (r);
old_bounds = r;
}
protected override bool OnExposeEvent(EventExpose e)
{
base.OnExposeEvent(e);
if (!PintaCore.Workspace.HasOpenDocuments)
{
return(true);
}
double scale = PintaCore.Workspace.Scale;
int x = (int)PintaCore.Workspace.Offset.X;
int y = (int)PintaCore.Workspace.Offset.Y;
// Translate our expose area for the whole drawingarea to just our canvas
Rectangle canvas_bounds = new Rectangle(x, y, PintaCore.Workspace.CanvasSize.Width, PintaCore.Workspace.CanvasSize.Height);
canvas_bounds.Intersect(e.Area);
if (canvas_bounds.IsEmpty)
{
return(true);
}
canvas_bounds.X -= x;
canvas_bounds.Y -= y;
// Resize our offscreen surface to a surface the size of our drawing area
if (canvas == null || canvas.Width != canvas_bounds.Width || canvas.Height != canvas_bounds.Height)
{
if (canvas != null)
{
(canvas as IDisposable).Dispose();
}
canvas = new Cairo.ImageSurface(Cairo.Format.Argb32, canvas_bounds.Width, canvas_bounds.Height);
}
cr.Initialize(PintaCore.Workspace.ImageSize, PintaCore.Workspace.CanvasSize);
using (Cairo.Context g = CairoHelper.Create(GdkWindow)) {
// Draw our 1 px black border
g.DrawRectangle(new Cairo.Rectangle(x, y, PintaCore.Workspace.CanvasSize.Width + 1, PintaCore.Workspace.CanvasSize.Height + 1), new Cairo.Color(0, 0, 0), 1);
// Set up our clip rectangle
g.Rectangle(new Cairo.Rectangle(x, y, PintaCore.Workspace.CanvasSize.Width, PintaCore.Workspace.CanvasSize.Height));
g.Clip();
g.Translate(x, y);
bool checker = true;
// Resize each layer and paint it to the screen
foreach (Layer layer in PintaCore.Layers.GetLayersToPaint())
{
cr.Render(layer.Surface, canvas, canvas_bounds.Location, checker);
g.SetSourceSurface(canvas, canvas_bounds.X + (int)(layer.Offset.X * scale), canvas_bounds.Y + (int)(layer.Offset.Y * scale));
g.PaintWithAlpha(layer.Opacity);
if (layer == PintaCore.Layers.CurrentLayer && PintaCore.LivePreview.IsEnabled)
{
cr.Render(PintaCore.LivePreview.LivePreviewSurface, canvas, canvas_bounds.Location, checker);
g.Save();
g.Scale(scale, scale);
g.AppendPath(PintaCore.Layers.SelectionPath);
g.Clip();
g.Scale(1 / scale, 1 / scale);
g.SetSourceSurface(canvas, canvas_bounds.X, canvas_bounds.Y);
g.PaintWithAlpha(layer.Opacity);
g.Restore();
}
checker = false;
}
// If we are at least 200% and grid is requested, draw it
if (PintaCore.Actions.View.PixelGrid.Active && cr.ScaleFactor.Ratio <= 0.5d)
{
gr.Render(canvas, canvas_bounds.Location);
g.SetSourceSurface(canvas, canvas_bounds.X, canvas_bounds.Y);
g.Paint();
}
// Selection outline
if (PintaCore.Layers.ShowSelection)
{
g.Save();
g.Translate(0.5, 0.5);
g.Scale(scale, scale);
g.AppendPath(PintaCore.Layers.SelectionPath);
if (PintaCore.Tools.CurrentTool.Name.Contains("Select") && !PintaCore.Tools.CurrentTool.Name.Contains("Selected"))
{
g.Color = new Cairo.Color(0.7, 0.8, 0.9, 0.2);
g.FillRule = Cairo.FillRule.EvenOdd;
g.FillPreserve();
}
g.LineWidth = 1 / scale;
// Draw a white line first so it shows up on dark backgrounds
g.Color = new Cairo.Color(1, 1, 1);
g.StrokePreserve();
// Draw a black dashed line over the white line
g.SetDash(new double[] { 2 / scale, 4 / scale }, 0);
g.Color = new Cairo.Color(0, 0, 0);
g.Stroke();
g.Restore();
}
}
return(true);
}
/// <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 OnMouseMove(object o, Gtk.MotionNotifyEventArgs args, Cairo.PointD point)
{
if (!painting || offset.IsNotSet ())
return;
int x = (int)point.X;
int y = (int)point.Y;
if (last_point.IsNotSet ()) {
last_point = new Point (x, y);
return;
}
using (Cairo.Context g = new Cairo.Context (PintaCore.Layers.ToolLayer.Surface)) {
g.AppendPath (PintaCore.Layers.SelectionPath);
g.FillRule = Cairo.FillRule.EvenOdd;
g.Clip ();
g.Antialias = Cairo.Antialias.Subpixel;
g.MoveTo (last_point.X, last_point.Y);
g.LineTo (x, y);
g.SetSource (PintaCore.Workspace.ActiveDocument.CurrentLayer.Surface, offset.X, offset.Y);
g.LineWidth = BrushWidth;
g.LineCap = Cairo.LineCap.Round;
g.Stroke ();
}
var dirty_rect = GetRectangleFromPoints (last_point, new Point (x, y));
last_point = new Point (x, y);
surface_modified = true;
PintaCore.Workspace.Invalidate (dirty_rect);
}
// Called from asynchronously from Renderer.OnCompletion ()
void HandleApply ()
{
Debug.WriteLine ("LivePreviewManager.HandleApply()");
var item = new SimpleHistoryItem (effect.Icon, effect.Name);
item.TakeSnapshotOfLayer (PintaCore.Layers.CurrentLayerIndex);
using (var ctx = new Cairo.Context (layer.Surface)) {
ctx.Save ();
ctx.AppendPath (PintaCore.Workspace.ActiveDocument.Selection.SelectionPath);
ctx.FillRule = Cairo.FillRule.EvenOdd;
ctx.Clip ();
ctx.Operator = Cairo.Operator.Source;
ctx.SetSourceSurface (live_preview_surface, (int)layer.Offset.X, (int)layer.Offset.Y);
ctx.Paint ();
ctx.Restore ();
}
PintaCore.History.PushNewItem (item);
FireLivePreviewEndedEvent(RenderStatus.Completed, null);
live_preview_enabled = false;
PintaCore.Workspace.Invalidate (); //TODO keep track of dirty bounds.
CleanUp ();
}
protected override bool OnExposeEvent(EventExpose e)
{
base.OnExposeEvent(e);
if (!PintaCore.Workspace.HasOpenDocuments)
{
return(true);
}
double scale = PintaCore.Workspace.Scale;
int x = (int)PintaCore.Workspace.Offset.X;
int y = (int)PintaCore.Workspace.Offset.Y;
// Translate our expose area for the whole drawingarea to just our canvas
Rectangle canvas_bounds = new Rectangle(x, y, PintaCore.Workspace.CanvasSize.Width, PintaCore.Workspace.CanvasSize.Height);
canvas_bounds.Intersect(e.Area);
if (canvas_bounds.IsEmpty)
{
return(true);
}
canvas_bounds.X -= x;
canvas_bounds.Y -= y;
// Resize our offscreen surface to a surface the size of our drawing area
if (canvas == null || canvas.Width != canvas_bounds.Width || canvas.Height != canvas_bounds.Height)
{
if (canvas != null)
{
(canvas as IDisposable).Dispose();
}
canvas = new Cairo.ImageSurface(Cairo.Format.Argb32, canvas_bounds.Width, canvas_bounds.Height);
}
cr.Initialize(PintaCore.Workspace.ImageSize, PintaCore.Workspace.CanvasSize);
using (Cairo.Context g = CairoHelper.Create(GdkWindow)) {
// Draw our canvas drop shadow
g.DrawRectangle(new Cairo.Rectangle(x, y, PintaCore.Workspace.CanvasSize.Width + 1, PintaCore.Workspace.CanvasSize.Height + 1), new Cairo.Color(.5, .5, .5), 1);
g.DrawRectangle(new Cairo.Rectangle(x - 1, y - 1, PintaCore.Workspace.CanvasSize.Width + 3, PintaCore.Workspace.CanvasSize.Height + 3), new Cairo.Color(.8, .8, .8), 1);
g.DrawRectangle(new Cairo.Rectangle(x - 2, y - 2, PintaCore.Workspace.CanvasSize.Width + 5, PintaCore.Workspace.CanvasSize.Height + 5), new Cairo.Color(.9, .9, .9), 1);
// Set up our clip rectangle
g.Rectangle(new Cairo.Rectangle(x, y, PintaCore.Workspace.CanvasSize.Width, PintaCore.Workspace.CanvasSize.Height));
g.Clip();
g.Translate(x, y);
// Render all the layers to a surface
var layers = PintaCore.Layers.GetLayersToPaint();
if (layers.Count == 0)
{
canvas.Clear();
}
cr.Render(layers, canvas, canvas_bounds.Location);
// Paint the surface to our canvas
g.SetSourceSurface(canvas, canvas_bounds.X + (int)(0 * scale), canvas_bounds.Y + (int)(0 * scale));
g.Paint();
// Selection outline
if (PintaCore.Layers.ShowSelection)
{
g.Save();
g.Translate(0.5, 0.5);
g.Scale(scale, scale);
g.AppendPath(PintaCore.Workspace.ActiveDocument.Selection.SelectionPath);
if (PintaCore.Tools.CurrentTool.Name.Contains("Select") && !PintaCore.Tools.CurrentTool.Name.Contains("Selected"))
{
g.Color = new Cairo.Color(0.7, 0.8, 0.9, 0.2);
g.FillRule = Cairo.FillRule.EvenOdd;
g.FillPreserve();
}
g.LineWidth = 1 / scale;
// Draw a white line first so it shows up on dark backgrounds
g.Color = new Cairo.Color(1, 1, 1);
g.StrokePreserve();
// Draw a black dashed line over the white line
g.SetDash(new double[] { 2 / scale, 4 / scale }, 0);
g.Color = new Cairo.Color(0, 0, 0);
g.Stroke();
g.Restore();
}
}
return(true);
}