public void Save()
{
Context.Save();
dataStack.Push(new Data()
{
PatternAlpha = PatternAlpha
});
}
public override void Render(Cairo.Context context, Point scale)
{
context.Save();
RenderArea(context, scale);
context.Restore();
base.Render(context, scale);
}
protected override bool OnDrawn(Cairo.Context cr)
{
cr.Save();
cr.SetSourceRGB(0.0, 0.0, 0.0);
cr.Rectangle(0, 0, Allocation.Width, Allocation.Height);
cr.Fill();
cr.Restore();
return(base.OnDrawn(cr));
}
private void DrawFocusRect(Cairo.Context cr, float x, float y, float width, float height)
{
cr.Save();
cr.Rectangle(x, y, width, height);
CairoHelper.PaintFocus(cr, gtk_style, state);
cr.Restore();
}
public void Save()
{
Context.Save();
stackTop = new Data {
PatternAlpha = PatternAlpha,
GlobalAlpha = GlobalAlpha,
Previous = stackTop,
};
}
public void Render(List <Layer> layers, Cairo.ImageSurface dst, Point offset)
{
dst.Flush();
// Our rectangle of interest
var r = new Rectangle(offset, dst.GetBounds().Size).ToCairoRectangle();
var doc = PintaCore.Workspace.ActiveDocument;
using (var g = new Cairo.Context(dst)) {
// Create the transparent checkerboard background
g.Translate(-offset.X, -offset.Y);
g.FillRectangle(r, tranparent_pattern, new Cairo.PointD(offset.X, offset.Y));
for (var i = 0; i < layers.Count; i++)
{
var layer = layers[i];
// If we're in LivePreview, substitute current layer with the preview layer
if (layer == doc.Layers.CurrentUserLayer && PintaCore.LivePreview.IsEnabled)
{
layer = CreateLivePreviewLayer(layer);
}
// If the layer is offset, handle it here
if (!layer.Transform.IsIdentity())
{
layer = CreateOffsetLayer(layer);
}
// No need to resize the surface if we're at 100% zoom
if (scale_factor.Ratio == 1)
{
layer.Draw(g, layer.Surface, layer.Opacity, false);
}
else
{
using (var scaled = CairoExtensions.CreateImageSurface(Cairo.Format.Argb32, dst.Width, dst.Height)) {
g.Save();
// Have to undo the translate set above
g.Translate(offset.X, offset.Y);
CopyScaled(layer.Surface, scaled, r.ToGdkRectangle());
layer.Draw(g, scaled, layer.Opacity, false);
g.Restore();
}
}
}
}
// If we are at least 200% and grid is requested, draw it
if (enable_pixel_grid && PintaCore.Actions.View.PixelGrid.Value && scale_factor.Ratio <= 0.5d)
{
RenderPixelGrid(dst, offset);
}
dst.MarkDirty();
}
public Gdk.Pixbuf BuildImage(FontService fontService)
{
Cairo.ImageSurface image = new Cairo.ImageSurface(Cairo.Format.ARGB32, WIDTH, HEIGHT);
Cairo.Context ctx = new Cairo.Context(image);
Pango.Layout layout = Pango.CairoHelper.CreateLayout(ctx);
fontService.AssignLayout(layout);
// fill background
ctx.Save();
ctx.Color = new Cairo.Color(0.0, 0.0, 0.0, 1.0);
ctx.Paint();
ctx.Restore();
int charCode = 0;
int maxHeight = 0;
Cairo.Point pos = new Cairo.Point(PADDING, PADDING);
while ((!fontService.OnlyEnglish && charCode < 224) ||
(fontService.OnlyEnglish && charCode < (224 - 66)))
{
layout.SetText(alphabet[charCode].ToString());
Pango.Rectangle te = GetTextExtents(layout, pos);
// next line
if (pos.X + te.Width + fontService.Spacing + PADDING > image.Width)
{
pos.X = PADDING;
pos.Y = te.Y + maxHeight + PADDING;
}
te = DrawText(ctx, layout, pos);
boxes[charCode] = te;
pos.X = te.X + te.Width + fontService.Spacing + PADDING;
maxHeight = Math.Max(maxHeight, te.Height);
charCode++;
}
int cropHeight = NextP2(boxes[charCode - 1].Y + boxes[charCode - 1].Height - 1);
Gdk.Pixbuf pixbuf = new Gdk.Pixbuf(
image.Data, true, 8,
image.Width,
cropHeight,
image.Stride);
// manual dispose
(image as IDisposable).Dispose();
(layout as IDisposable).Dispose();
(ctx.Target as IDisposable).Dispose();
(ctx as IDisposable).Dispose();
return(pixbuf);
}
public static void RenderLine(Cairo.Context g, Cairo.Color c, double lw, double x0, double y0, double x1, double y1)
{
g.Save();
g.Color = c;
g.LineWidth = 3;
g.MoveTo(x0, y0);
g.LineTo(x1, y1);
g.Stroke();
g.Restore();
}
public override void DrawForeground(MonoTextEditor editor, Cairo.Context cr, MarginDrawMetrics metrics)
{
var tx = Math.Round(metrics.X + (metrics.Width - cache.errorPixbuf.Width) / 2) - 1;
var ty = Math.Floor(metrics.Y + (metrics.Height - cache.errorPixbuf.Height) / 2);
cr.Save();
cr.Translate(tx, ty);
cr.DrawImage(editor, errors.Any(e => e.IsError) ? cache.errorPixbuf : cache.warningPixbuf, 0, 0);
cr.Restore();
}
public void Draw(GraphicsHandler graphics, Pango.Layout layout, Cairo.Context context, PointF location)
{
Setup(layout);
context.Save();
ForegroundBrush.Apply(graphics);
context.MoveTo(location.X, location.Y);
Pango.CairoHelper.LayoutPath(context, layout);
context.Fill();
context.Restore();
}
public virtual void Render(Cairo.Context cr)
{
double opacity = Opacity;
if (ContentAllocation.Width <= 0 || ContentAllocation.Height <= 0 || opacity <= 0)
{
return;
}
cr.Save();
if (opacity < 1.0)
{
cr.PushGroup();
}
MarginStyle margin_style = MarginStyle;
if (margin_style != null && margin_style != MarginStyle.None)
{
cr.Translate(Math.Round(Allocation.X), Math.Round(Allocation.Y));
cr.Save();
margin_style.Apply(this, cr);
cr.Restore();
cr.Translate(Math.Round(Margin.Left), Math.Round(Margin.Top));
}
else
{
cr.Translate(Math.Round(ContentAllocation.X), Math.Round(ContentAllocation.Y));
}
cr.Antialias = Cairo.Antialias.Default;
ClippedRender(cr);
if (opacity < 1.0)
{
cr.PopGroupToSource();
cr.PaintWithAlpha(Opacity);
}
cr.Restore();
}
protected void RenderLine(Cairo.Context context, Point scale, int idx, int length)
{
context.Save();
SetLineStyle(context);
CreatePath(context, scale, idx, length);
context.Stroke();
context.Restore();
}
protected void paintTrail(Cairo.Context context, int x, int y)
{
context.Save();
context.SetSourceRGB(0, 1, 0);
context.Translate(x, y);
context.Rectangle(new Cairo.Rectangle(0, 0, fieldSize, fieldSize));
context.SetSourceRGBA(0, 1, 0, 0.3);
context.FillPreserve();
context.NewPath();
context.Restore();
}
internal static void DrawLine(this Cairo.Context g, Point p0, Point p1, float width, Color color)
{
g.NewPath();
g.Save();
g.SetSourceColor(color);
g.LineWidth = width;
g.MoveTo(p0.ToPointD());
g.LineTo(p1.ToPointD());
g.Stroke();
g.Restore();
}
protected override bool OnDrawn(Cairo.Context cr)
{
cr.Save();
Gdk.RGBA color = Hyena.Gui.GtkUtilities.ColorBlend(
StyleContext.GetBackgroundColor(StateFlags.Normal),
StyleContext.GetColor(StateFlags.Normal));
cr.SetSourceRGBA(color.Red, color.Green, color.Blue, color.Alpha);
DrawCairo(cr);
cr.Restore();
return(false);
}
protected void paintSquare(Cairo.Context context, int x, int y, bool fill)
{
context.Save();
context.SetSourceRGB(0, 0, 1);
context.Translate(x, y);
context.Rectangle(new Cairo.Rectangle(0, 0, fieldSize, fieldSize));
context.SetSourceRGBA(0, 0, 0, fill ? 0.5 : 0.3);
context.FillPreserve();
context.NewPath();
context.Restore();
}
public static void RenderCircle(Cairo.Context g, Cairo.Color c, double r, double x, double y)
{
g.Save();
g.Color = c;
g.MoveTo(x, y);
g.Arc(x, y, r, 0, 6.28);
g.LineWidth = 3;
g.ClosePath();
g.Fill();
g.Restore();
}
private void PaintHeaderCell(Cairo.Context cr, Rectangle area, int ci, bool dragging, ref bool have_drawn_separator)
{
if (ci < 0 || column_cache.Length <= ci)
{
return;
}
if (ci == ActiveColumn && HasFocus && HeaderFocused)
{
Theme.DrawColumnHeaderFocus(cr, area);
}
if (dragging)
{
Cairo.Color dark_color = CairoExtensions.GdkRGBAToCairoColor(StyleContext.GetBackgroundColor(StateFlags.Normal));
dark_color = CairoExtensions.ColorShade(dark_color, 0.7);
Theme.DrawColumnHighlight(cr, area, dark_color);
StyleContext.Save();
StyleContext.AddClass("entry");
Cairo.Color base_color = CairoExtensions.GdkRGBAToCairoColor(StyleContext.GetBackgroundColor(StateFlags.Normal));
StyleContext.Restore();
Cairo.Color stroke_color = CairoExtensions.ColorShade(base_color, 0.0);
stroke_color.A = 0.3;
cr.Color = stroke_color;
cr.MoveTo(area.X + 0.5, area.Y + 1.0);
cr.LineTo(area.X + 0.5, area.Bottom);
cr.MoveTo(area.Right - 0.5, area.Y + 1.0);
cr.LineTo(area.Right - 0.5, area.Bottom);
cr.Stroke();
}
ColumnCell cell = column_cache[ci].Column.HeaderCell;
if (cell != null)
{
cr.Save();
cr.Translate(area.X, area.Y);
cell_context.Area = area;
cell_context.State = StateFlags.Normal;
cell.Render(cell_context, area.Width, area.Height);
cr.Restore();
}
if (!dragging && ci < column_cache.Length - 1 && (have_drawn_separator ||
column_cache[ci].MaxWidth != column_cache[ci].MinWidth))
{
have_drawn_separator = true;
Theme.DrawHeaderSeparator(cr, area, area.Right);
}
}
internal static void DrawEllipse(Cairo.Context context, Ellipse el, double startAngle = 0, double endAngle = Math.PI * 2)
{
var radius = Math.Max(el.AxisA.Length, el.AxisB.Length);
var scaleX = el.AxisA.Length / radius;
var scaleY = el.AxisB.Length / radius;
context.Save();
context.Scale(scaleX, scaleY);
context.Arc(el.Center.X, el.Center.Y, radius, startAngle, endAngle);
context.Stroke();
context.Restore();
}
/// <summary>
/// Draws a bitmap image.
/// </summary>
/// <param name="source">The bitmap image.</param>
/// <param name="opacity">The opacity to draw with.</param>
/// <param name="sourceRect">The rect in the image to draw.</param>
/// <param name="destRect">The rect in the output to draw to.</param>
public void DrawImage(IBitmap bitmap, double opacity, Rect sourceRect, Rect destRect)
{
var impl = bitmap.PlatformImpl as BitmapImpl;
var size = new Size(impl.PixelWidth, impl.PixelHeight);
var scale = new Vector(destRect.Width / sourceRect.Width, destRect.Height / sourceRect.Height);
_context.Save();
_context.Scale(scale.X, scale.Y);
destRect /= scale;
if (opacityOverride < 1.0f)
{
_context.PushGroup();
Gdk.CairoHelper.SetSourcePixbuf(
_context,
impl.Surface,
-sourceRect.X + destRect.X,
-sourceRect.Y + destRect.Y);
_context.Rectangle(destRect.ToCairo());
_context.Fill();
_context.PopGroupToSource();
_context.PaintWithAlpha(opacityOverride);
}
else
{
_context.PushGroup();
Gdk.CairoHelper.SetSourcePixbuf(
_context,
impl.Surface,
-sourceRect.X + destRect.X,
-sourceRect.Y + destRect.Y);
_context.Rectangle(destRect.ToCairo());
_context.Fill();
_context.PopGroupToSource();
_context.PaintWithAlpha(opacityOverride);
}
_context.Restore();
}
protected override bool OnDrawn(Cairo.Context cr)
{
base.DrawBackground(cr);
cr.Save();
cr.Translate(XOffset, YOffset);
cr.Scale(Scale, Scale);
hoveringComponent = null;
foreach (RoomComponent com in roomComponents)
{
cr.SetSourceColor(com.BoxColor);
cr.Rectangle(com.BoxRectangle);
cr.Fill();
com.Draw(cr);
if (DrawRoomComponentHover)
{
if (CairoHelper.PointInRect(mouseX, mouseY, com.BoxRectangle))
{
hoveringComponent = com;
}
}
}
if (SelectRoomComponents)
{
// Object hovering over
if (hoveringComponent != null)
{
cr.SetSourceColor(ObjectHoverColor);
CairoHelper.DrawRectOutline(cr, 1, hoveringComponent.BoxRectangle);
}
// Object selected
if (selectedComponent != null)
{
cr.SetSourceColor(TileGridViewer.DefaultSelectionColor);
CairoHelper.DrawRectOutline(cr, 1, selectedComponent.BoxRectangle);
}
}
cr.Restore();
if (DrawTileHover)
{
base.DrawHoverAndSelection(cr);
}
return(true);
}
public static void FillEllipse(this Cairo.Context dc, double x, double y, double width, double height)
{
dc.Save();
dc.Translate(x + width / 2, y + height / 2);
dc.Scale(width / 2, height / 2);
dc.Arc(0, 0, 1, 0, 2 * Math.PI);
//dc.fill.SetupFill();
//dc.fill_preserve()
//dc.SetupStroke()
dc.Fill();
dc.Restore();
}
public static void DrawText(Cairo.Context context, float x, float y, double angle, string text)
{
var ext = context.TextExtents(text);
context.Save();
context.Translate(x, y);
context.Rotate(angle - Math.PI / 2);
context.Translate(-ext.Width / 2, 0);
context.ShowText(text);
context.Stroke();
context.Restore();
}
public virtual void Render(Drawable window, Cairo.Context ctx, Rectangle bounds, StateType state)
{
int w, h;
layout.GetPixelSize(out w, out h);
int dy = (bounds.Height - h) / 2;
ctx.Save();
ctx.SetSourceColor(container.Style.Text(state).ToCairoColor());
ctx.MoveTo(bounds.X, dy + bounds.Y);
Pango.CairoHelper.ShowLayout(ctx, layout);
ctx.Restore();
}
protected override void onDraw (Cairo.Context gr)
{
gr.Save ();
drawTechBorder1 (gr);
if (child != null) {
if (child.Visible)
child.Paint (ref gr);
}
gr.Restore ();
}
public static void RenderInvertedTriangle(Cairo.Context g, Cairo.Color c, double x, double y, int side)
{
g.Save();
g.Color = c;
g.MoveTo(x, y);
g.LineTo(x - side / 2, y - side);
g.LineTo(x + side / 2, y - side);
g.LineTo(x, y);
g.Fill();
g.Restore();
}
public override void DrawForeground(TextEditor editor, Cairo.Context cr, MarginDrawMetrics metrics)
{
cr.Save();
cr.Translate(
metrics.X + 0.5 + (metrics.Width - 2 - cache.errorPixbuf.Width) / 2,
metrics.Y + 0.5 + (metrics.Height - cache.errorPixbuf.Height) / 2
);
Gdk.CairoHelper.SetSourcePixbuf(
cr,
errors.Any(e => e.IsError) ? cache.errorPixbuf : cache.warningPixbuf, 0, 0);
cr.Paint();
cr.Restore();
}
public void DrawImage(IBitmap bitmap, double opacity, Rect sourceRect, Rect destRect)
{
var impl = bitmap.PlatformImpl as BitmapImpl;
var size = new Size(impl.PixelWidth, impl.PixelHeight);
var scaleX = destRect.Size.Width / sourceRect.Size.Width;
var scaleY = destRect.Size.Height / sourceRect.Size.Height;
_context.Save();
_context.Scale(scaleX, scaleY);
_context.SetSourceSurface(impl.Surface, (int)sourceRect.X, (int)sourceRect.Y);
_context.Rectangle(sourceRect.ToCairo());
_context.Fill();
_context.Restore();
}
public static void ShadowedText(Cairo.Context g, Cairo.Color c, string text, double x, double y)
{
g.Save();
g.MoveTo(x + Graphics.SHADOW_SPACING, y + Graphics.SHADOW_SPACING);
g.Color = new Cairo.Color(0, 0, 0);
g.ShowText(text);
g.MoveTo(x, y);
g.Color = c;
g.ShowText(text);
g.Restore();
}
void RenderLineNumberIcon(Widget widget, Cairo.Context cr, Gdk.Rectangle cell_area, int markupHeight, int yOffset)
{
if (Frame == null)
{
return;
}
cr.Save();
#if CENTER_ROUNDED_RECTANGLE
cr.Translate(cell_area.X + Padding, (cell_area.Y + (cell_area.Height - RoundedRectangleHeight) / 2.0));
#else
cr.Translate(cell_area.X + Padding, cell_area.Y + Padding + yOffset);
#endif
cr.Antialias = Cairo.Antialias.Subpixel;
cr.RoundedRectangle(0.0, 0.0, RoundedRectangleWidth, RoundedRectangleHeight, RoundedRectangleRadius);
cr.Clip();
if (IsUserCode)
{
cr.SetSourceColor(Styles.ExceptionCaughtDialog.LineNumberInUserCodeBackgroundColor.ToCairoColor()); // 230, 152, 223
}
else
{
cr.SetSourceColor(Styles.ExceptionCaughtDialog.LineNumberBackgroundColor.ToCairoColor()); // 197, 197, 197
}
cr.RoundedRectangle(0.0, 0.0, RoundedRectangleWidth, RoundedRectangleHeight, RoundedRectangleRadius);
cr.Fill();
var lineNumber = !string.IsNullOrEmpty(Frame.File) ? Frame.Line : -1;
using (var layout = PangoUtil.CreateLayout(widget, lineNumber != -1 ? lineNumber.ToString() : "???")) {
layout.Alignment = Pango.Alignment.Left;
layout.FontDescription = LineNumberFont;
int width, height;
layout.GetPixelSize(out width, out height);
double y_offset = (RoundedRectangleHeight - height) / 2.0;
double x_offset = (RoundedRectangleWidth - width) / 2.0;
cr.SetSourceColor(Styles.ExceptionCaughtDialog.LineNumberTextColor.ToCairoColor());
cr.Translate(x_offset, y_offset);
cr.ShowLayout(layout);
}
cr.Restore();
}
public void Render (List<Layer> layers, Cairo.ImageSurface dst, Gdk.Point offset)
{
dst.Flush ();
// Our rectangle of interest
var r = new Gdk.Rectangle (offset, dst.GetBounds ().Size).ToCairoRectangle ();
using (var g = new Cairo.Context (dst)) {
// Create the transparent checkerboard background
g.Translate (-offset.X, -offset.Y);
g.FillRectangle (r, tranparent_pattern, new Cairo.PointD (offset.X, offset.Y));
for (var i = 0; i < layers.Count; i++) {
var layer = layers[i];
// If we're in LivePreview, substitute current layer with the preview layer
if (layer == PintaCore.Layers.CurrentLayer && PintaCore.LivePreview.IsEnabled)
layer = CreateLivePreviewLayer (layer);
// If the layer is offset, handle it here
if (!layer.Transform.IsIdentity ())
layer = CreateOffsetLayer (layer);
// No need to resize the surface if we're at 100% zoom
if (scale_factor.Ratio == 1)
layer.Draw (g, layer.Surface, layer.Opacity, false);
else {
using (var scaled = new Cairo.ImageSurface (Cairo.Format.Argb32, dst.Width, dst.Height)) {
g.Save ();
// Have to undo the translate set above
g.Translate (offset.X, offset.Y);
CopyScaled (layer.Surface, scaled, r.ToGdkRectangle ());
layer.Draw (g, scaled, layer.Opacity, false);
g.Restore ();
}
}
}
}
// If we are at least 200% and grid is requested, draw it
if (enable_pixel_grid && PintaCore.Actions.View.PixelGrid.Active && scale_factor.Ratio <= 0.5d)
RenderPixelGrid (dst, offset);
dst.MarkDirty ();
}
// Called from asynchronously from Renderer.OnCompletion ()
void HandleApply ()
{
Debug.WriteLine ("LivePreviewManager.HandleApply()");
using (var ctx = new Cairo.Context (layer.Surface)) {
ctx.Save ();
PintaCore.Workspace.ActiveDocument.Selection.Clip (ctx);
ctx.Operator = Cairo.Operator.Source;
layer.Draw(ctx, live_preview_surface, 1);
ctx.Restore ();
}
PintaCore.History.PushNewItem (history_item);
history_item = null;
FireLivePreviewEndedEvent(RenderStatus.Completed, null);
live_preview_enabled = false;
PintaCore.Workspace.Invalidate (); //TODO keep track of dirty bounds.
CleanUp ();
}
// 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 ();
}
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;
}
/// <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;
}
public Gdk.Pixbuf BuildImage(FontService fontService)
{
Cairo.ImageSurface image = new Cairo.ImageSurface (Cairo.Format.ARGB32, WIDTH, HEIGHT);
Cairo.Context ctx = new Cairo.Context (image);
Pango.Layout layout = Pango.CairoHelper.CreateLayout (ctx);
fontService.AssignLayout (layout);
// fill background
ctx.Save ();
ctx.Color = new Cairo.Color (0.0, 0.0, 0.0, 1.0);
ctx.Paint ();
ctx.Restore ();
int charCode = 0;
int maxHeight = 0;
Cairo.Point pos = new Cairo.Point (PADDING, PADDING);
while ((!fontService.OnlyEnglish && charCode < 224) ||
(fontService.OnlyEnglish && charCode < (224 - 66))) {
layout.SetText (alphabet[charCode].ToString());
Pango.Rectangle te = GetTextExtents (layout, pos);
// next line
if (pos.X + te.Width + fontService.Spacing + PADDING > image.Width) {
pos.X = PADDING;
pos.Y = te.Y + maxHeight + PADDING;
}
te = DrawText (ctx, layout, pos);
boxes[charCode] = te;
pos.X = te.X + te.Width + fontService.Spacing + PADDING;
maxHeight = Math.Max (maxHeight, te.Height);
charCode++;
}
int cropHeight = NextP2 (boxes[charCode - 1].Y + boxes[charCode - 1].Height - 1);
Gdk.Pixbuf pixbuf = new Gdk.Pixbuf (
image.Data, true, 8,
image.Width,
cropHeight,
image.Stride);
// manual dispose
(image as IDisposable).Dispose ();
(layout as IDisposable).Dispose ();
(ctx.Target as IDisposable).Dispose ();
(ctx as IDisposable).Dispose ();
return pixbuf;
}