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C# Cairo.Context.Restore方法代码示例

本文整理汇总了C#中Cairo.Context.Restore方法的典型用法代码示例。如果您正苦于以下问题:C# Cairo.Context.Restore方法的具体用法?C# Cairo.Context.Restore怎么用?C# Cairo.Context.Restore使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Cairo.Context的用法示例。


在下文中一共展示了Cairo.Context.Restore方法的6个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: HandleApply

		// 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 ();
		}
开发者ID:ericksson,项目名称:Pinta,代码行数:26,代码来源:LivePreviewManager.cs

示例2: HandleApply

		// 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 ();
		}
开发者ID:cameronwhite,项目名称:Pinta,代码行数:31,代码来源:LivePreviewManager.cs

示例3: RedrawText

        /// <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();
//.........这里部分代码省略.........
开发者ID:Kharevich,项目名称:Pinta,代码行数:101,代码来源:TextTool.cs

示例4: BuildImage

        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;
        }
开发者ID:MagistrTot,项目名称:DGLE,代码行数:53,代码来源:DftUtil.cs

示例5: RedrawText

        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;
        }
开发者ID:rini18,项目名称:Pinta,代码行数:77,代码来源:TextTool.cs

示例6: Render

		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 ();
		}
开发者ID:msiyer,项目名称:Pinta,代码行数:45,代码来源:CanvasRenderer.cs


注:本文中的Cairo.Context.Restore方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。