1 files changed, 160 insertions, 0 deletions
diff --git a/src/PanelWithTitle.cs b/src/PanelWithTitle.cs
new file mode 100644
index 00000000..3208821f
--- /dev/null
+++ b/src/PanelWithTitle.cs
@@ -0,0 +1,160 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Cairo;
+
+namespace go
+{
+    public class PanelWithTitle : Panel
+    {
+        public PanelWithTitle(Rectangle _bounds)
+            : base(_bounds)
+        {                        
+            background = Color.DimGray;
+        }
+
+        string _title = "Panel";
+        public string title
+        {
+            get { return _title; }
+            set
+            {
+                _title = value;
+                registerForGraphicUpdate();
+            }
+        }
+
+        int _fontSize = 10;
+        public int fontSize
+        {
+            get { return _fontSize; }
+            set
+            {
+                _fontSize = value;
+                registerForGraphicUpdate();
+            }
+        }
+        public Color titleBackground = new Color(0.5, 0.5, 0.7, 0.8);
+        public Color titleTextColor = new Color(0.9, 0.9, 0.9, 1);
+		public Size titleSize ()
+		{
+#if _WIN32 || _WIN64
+            byte[] txt = System.Text.UTF8Encoding.UTF8.GetBytes(_title);
+#endif
+            
+            Size s;
+
+            using (Context gr = new Context(new ImageSurface(Format.Argb32,1,1)))
+            {
+                gr.SetFontSize(fontSize);
+				TextExtents te;
+#if _WIN32 || _WIN64
+                te = gr.TextExtents(txt);
+#elif __linux__
+                te =  gr.TextExtents(title);
+#endif
+                FontExtents fe = gr.FontExtents;
+                s = new Size((int)Math.Ceiling(te.XAdvance),(int)Math.Ceiling(fe.Height));
+            }
+            return s;// +borderWidth;
+        }
+        public override Rectangle clientBounds
+        {
+            get
+            {
+                Size st = titleSize() + borderWidth*2;
+                Rectangle cb = bounds.Clone;
+                cb.X = 0;
+                cb.Y = st.Height;
+                cb.Height -= st.Height;
+                cb.Inflate(-borderWidth-margin, -borderWidth-margin);
+
+                //cb.Y += titleHeight;
+                return cb;
+            }
+        }
+
+        internal Rectangle rClose = new Rectangle();//close button
+        internal override void updateGraphic()
+        {            
+            
+            int stride = 4 * renderBounds.Width;
+
+            int bmpSize = Math.Abs(stride) * renderBounds.Height;
+            bmp = new byte[bmpSize];
+
+            byte[] txt = System.Text.UTF8Encoding.UTF8.GetBytes(title);// utf = new System.Text.Decoder();
+
+            using (ImageSurface draw = new ImageSurface(bmp, Format.Argb32, renderBounds.Width, renderBounds.Height, stride))
+            {
+                using (Context gr = new Context(draw))
+                {
+                    
+                    
+                    Rectangle r = new Rectangle(0, 0, renderBounds.Width, renderBounds.Height);
+                    //gr.Rotate(Math.PI);
+                    gr.SetFontSize(fontSize);
+					FontExtents fe = gr.FontExtents;
+                    //  double a = Math.PI;
+                    //gr.Transform(new c.Matrix(Math.Cos(a),-Math.Sin(a),Math.Sin(a),Math.Cos(a),renderBounds.Width,renderBounds.Height));
+                    gr.Antialias = Antialias.Subpixel;                    
+                    gr.LineWidth = borderWidth;
+                    gr.Color = background;
+                    //gr.MoveTo(renderBounds.X+1,renderBounds.Y+1);
+                    gr.Rectangle(r);
+                    gr.Fill();
+                    draw.Flush();
+                    
+                    Rectangle rTitle = r.Clone;
+                    rTitle.Height = titleSize().Height + borderWidth * 2;                    
+                    gr.Color = Color.blue1;
+                    gr.Rectangle(rTitle);
+                    gr.Fill();
+                    rTitle.Inflate(-borderWidth / 2, -borderWidth / 2);
+                    gr.Rectangle(rTitle);
+                    gr.Color = borderColor;
+                    gr.Stroke();
+
+                    r.Inflate(-borderWidth / 2, -borderWidth / 2);
+                    gr.Rectangle(r);
+                    gr.Color = borderColor;
+                    gr.Stroke();
+                    //gr.TextExtents(txt);
+
+
+                    gr.MoveTo(borderWidth + 1, fe.Height - fe.Descent + borderWidth);
+#if _WIN32 || _WIN64
+                    gr.ShowText(txt);
+#elif __linux__
+					gr.ShowText(title);
+#endif
+                    gr.Fill();
+                    //gr.Stroke();  
+                    gr.LineWidth = 1;
+
+                    rClose = rTitle.Clone;
+                    rClose.Width = rClose.Height;                                        
+                    rClose.Left = rTitle.Right - rClose.Width;
+                    rClose.Inflate(-6, -6);
+                    gr.MoveTo(rClose.X, rClose.Y);
+                    gr.LineTo(rClose.Right, rClose.Bottom);
+                    gr.MoveTo(rClose.X, rClose.Bottom);
+                    gr.LineTo(rClose.Right, rClose.Top);
+                    gr.Stroke();
+                    rClose.Inflate(3, 3);
+                    gr.Rectangle(rClose);
+                    gr.Stroke();
+                }
+                draw.Flush();
+                //draw.WriteToPng(directories.rootDir + @"test.png");
+            }
+
+            //registerForRedraw();
+        }
+        public override string ToString()
+        {
+            return this.title + ":" + base.ToString();
+        }
+    }    
+}