Exemple #1
0
        /// <summary>
        /// This method creates the render target and all associated D2D and DWrite resources
        /// </summary>
        void CreateDeviceResources()
        {
            // Only calls if resources have not been initialize before
            if (renderTarget == null)
            {
                // The text format
                textFormat = dwriteFactory.CreateTextFormat("Bodoni MT", 24, DWrite.FontWeight.Normal, DWrite.FontStyle.Italic, DWrite.FontStretch.Normal);

                // Create the render target
                SizeU size = new SizeU((uint)host.ActualWidth, (uint)host.ActualHeight);
                RenderTargetProperties     props     = new RenderTargetProperties();
                HwndRenderTargetProperties hwndProps = new HwndRenderTargetProperties(host.Handle, size, PresentOptions.None);
                renderTarget = d2dFactory.CreateHwndRenderTarget(props, hwndProps);

                // A black brush to be used for drawing text
                ColorF cf = new ColorF(0, 0, 0, 1);
                blackBrush = renderTarget.CreateSolidColorBrush(cf);

                // Create a linear gradient.
                GradientStop[] stops =
                {
                    new GradientStop(1, new ColorF(1f, 0f, 0f, 0.25f)),
                    new GradientStop(0, new ColorF(0f, 0f, 1f, 1f))
                };

                GradientStopCollection        pGradientStops = renderTarget.CreateGradientStopCollection(stops, Gamma.Linear, ExtendMode.Wrap);
                LinearGradientBrushProperties gradBrushProps = new LinearGradientBrushProperties(new Point2F(50, 25), new Point2F(25, 50));

                linearGradientBrush = renderTarget.CreateLinearGradientBrush(gradBrushProps, pGradientStops);

                gridPatternBitmapBrush = CreateGridPatternBrush(renderTarget);

                solidBrush1 = renderTarget.CreateSolidColorBrush(new ColorF(0.3F, 0.5F, 0.65F, 0.25F));
                solidBrush2 = renderTarget.CreateSolidColorBrush(new ColorF(0.0F, 0.0F, 0.65F, 0.5F));
                solidBrush3 = renderTarget.CreateSolidColorBrush(new ColorF(0.9F, 0.5F, 0.3F, 0.75F));

                // Create a linear gradient.
                stops[0] = new GradientStop(1, new ColorF(0f, 0f, 0f, 0.25f));
                stops[1] = new GradientStop(0, new ColorF(1f, 1f, 0.2f, 1f));
                GradientStopCollection radiantGradientStops = renderTarget.CreateGradientStopCollection(stops, Gamma.Linear, ExtendMode.Wrap);

                RadialGradientBrushProperties radialBrushProps = new RadialGradientBrushProperties(new Point2F(25, 25), new Point2F(0, 0), 10, 10);
                radialGradientBrush = renderTarget.CreateRadialGradientBrush(radialBrushProps, radiantGradientStops);
            }
        }
        /// <summary>
        /// This method creates the render target and all associated D2D and DWrite resources
        /// </summary>
        void CreateDeviceResources()
        {
            // Only calls if resources have not been initialize before
            if (renderTarget == null)
            {
                // The text format
                textFormat = dwriteFactory.CreateTextFormat("Bodoni MT", 24, DWrite.FontWeight.Normal, DWrite.FontStyle.Italic, DWrite.FontStretch.Normal);

                // Create the render target
                SizeU size = new SizeU((uint)host.ActualWidth, (uint)host.ActualHeight);
                RenderTargetProperties props = new RenderTargetProperties();
                HwndRenderTargetProperties hwndProps = new HwndRenderTargetProperties(host.Handle, size, PresentOptions.None);
                renderTarget = d2dFactory.CreateHwndRenderTarget(props, hwndProps);

                // A black brush to be used for drawing text
                ColorF cf = new ColorF(0, 0, 0, 1);
                blackBrush = renderTarget.CreateSolidColorBrush(cf);

                // Create a linear gradient.
                GradientStop[] stops = 
                { 
                    new GradientStop(1, new ColorF(1f, 0f, 0f, 0.25f)),
                    new GradientStop(0, new ColorF(0f, 0f, 1f, 1f))
                };

                GradientStopCollection pGradientStops = renderTarget.CreateGradientStopCollection(stops, Gamma.Linear, ExtendMode.Wrap);
                LinearGradientBrushProperties gradBrushProps = new LinearGradientBrushProperties(new Point2F(50, 25), new Point2F(25, 50));

                linearGradientBrush = renderTarget.CreateLinearGradientBrush(gradBrushProps, pGradientStops);

                gridPatternBitmapBrush = CreateGridPatternBrush(renderTarget);

                solidBrush1 = renderTarget.CreateSolidColorBrush(new ColorF(0.3F, 0.5F, 0.65F, 0.25F));
                solidBrush2 = renderTarget.CreateSolidColorBrush(new ColorF(0.0F, 0.0F, 0.65F, 0.5F));
                solidBrush3 = renderTarget.CreateSolidColorBrush(new ColorF(0.9F, 0.5F, 0.3F, 0.75F));

                // Create a linear gradient.
                stops[0] = new GradientStop(1, new ColorF(0f, 0f, 0f, 0.25f));
                stops[1] = new GradientStop(0, new ColorF(1f, 1f, 0.2f, 1f));
                GradientStopCollection radiantGradientStops = renderTarget.CreateGradientStopCollection(stops, Gamma.Linear, ExtendMode.Wrap);

                RadialGradientBrushProperties radialBrushProps = new RadialGradientBrushProperties(new Point2F(25, 25), new Point2F(0, 0), 10, 10);
                radialGradientBrush = renderTarget.CreateRadialGradientBrush(radialBrushProps, radiantGradientStops);
            }
        }