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authorjpbruyere <jp.bruyere@hotmail.com>2014-12-18 22:41:10 +0100
committerjpbruyere <jp.bruyere@hotmail.com>2014-12-18 22:41:10 +0100
commitd5a5d9516969d7a0fb665a72be7269e7bd51ad58 (patch)
tree64807d55e1994b3c700e9628ac7a6ba602a4426f /src/GraphicObjects/Label.cs
parent02fed0f59e37aa66381023ec1543cca9a54ac118 (diff)
misa a jour
Diffstat (limited to 'src/GraphicObjects/Label.cs')
-rw-r--r--src/GraphicObjects/Label.cs294
1 files changed, 294 insertions, 0 deletions
diff --git a/src/GraphicObjects/Label.cs b/src/GraphicObjects/Label.cs
new file mode 100644
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--- /dev/null
+++ b/src/GraphicObjects/Label.cs
@@ -0,0 +1,294 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Diagnostics;
+using Cairo;
+using System.Text.RegularExpressions;
+
+namespace go
+{
+ [Serializable]
+ public class Label : GraphicObject
+ {
+ //TODO:change protected to private
+
+ protected string _text = "label";
+ Alignment _textAlignment = Alignment.LeftCenter;
+ int _fontSize = 12;
+ bool _multiline = false;
+
+ protected Rectangle rText;
+ protected float widthRatio = 1f;
+ protected float heightRatio = 1f;
+ protected FontExtents fe;
+ protected TextExtents te;
+
+ //public string FontFace = "MagicMedieval";
+ public string FontFace = "droid";
+
+
+ [System.Xml.Serialization.XmlAttributeAttribute()]
+ [System.ComponentModel.DefaultValue(-1)]
+ public override int Width {
+ get { return base.Width; }
+ set { base.Width = value; }
+ }
+
+ [System.Xml.Serialization.XmlAttributeAttribute()]
+ [System.ComponentModel.DefaultValue(-1)]
+ public override int Height {
+ get { return base.Height; }
+ set { base.Height = value; }
+ }
+
+ [System.Xml.Serialization.XmlAttributeAttribute()]
+ [System.ComponentModel.DefaultValue(2)]
+ public virtual int Margin {
+ get { return base.Margin; }
+ set { base.Margin = value; }
+ }
+
+ [System.Xml.Serialization.XmlAttributeAttribute()]
+ [System.ComponentModel.DefaultValue(Alignment.LeftCenter)]
+ public Alignment TextAlignment
+ {
+ get { return _textAlignment; }
+ set { _textAlignment = value; }
+ }
+
+ [System.Xml.Serialization.XmlAttributeAttribute()]
+ public string Text
+ {
+ get { return _text; }
+ set
+ {
+ if (_text == value)
+ return;
+
+
+ registerForGraphicUpdate();
+ InvalidateLayout();
+
+ _text = value;
+ }
+ }
+
+ [System.Xml.Serialization.XmlAttributeAttribute()]
+ [System.ComponentModel.DefaultValue(10)]
+ public int FontSize
+ {
+ get { return _fontSize; }
+ set
+ {
+ _fontSize = value;
+ registerForGraphicUpdate();
+ }
+ }
+
+ [System.Xml.Serialization.XmlAttributeAttribute()]
+ [System.ComponentModel.DefaultValue(false)]
+ public bool Multiline
+ {
+ get { return _multiline; }
+ set
+ {
+ _multiline = value;
+ registerForGraphicUpdate();
+ }
+ }
+
+ public Label()
+ {
+
+ }
+
+ public Label(string _text)
+ : base()
+ {
+ //updateFont();
+ Text = _text;
+ }
+
+ void updateFont()
+ {
+ //TextFont = new Font(fontFamily, fontSize, fontStyle, GraphicsUnit.Pixel);
+
+ bmp = null;
+ }
+
+ string[] getLines {
+ get {
+ return _multiline ?
+ Regex.Split (_text, "\r\n|\r|\n") :
+ new string[] { _text };
+ }
+ }
+
+ public override Size measureRawSize()
+ {
+ Size s;
+
+
+ if (string.IsNullOrEmpty(_text))
+ _text = "";
+
+ string[] lines = getLines;
+
+ using (ImageSurface img = new ImageSurface (Format.Argb32, 1, 1)) {
+ using (Context gr = new Context (img)) {
+ //Cairo.FontFace cf = gr.GetContextFontFace ();
+ gr.SelectFontFace (FontFace, FontSlant.Normal, FontWeight.Normal);
+ gr.SetFontSize (FontSize);
+
+ te = new TextExtents();
+
+ foreach (string str in lines) {
+#if _WIN32 || _WIN64
+ TextExtents tmp = gr.TextExtents(str.ToUtf8());
+#elif __linux__
+ TextExtents tmp = gr.TextExtents (str);
+#endif
+ if (tmp.XAdvance > te.XAdvance)
+ te = tmp;
+ }
+ fe = gr.FontExtents;
+ s = new Size ((int)Math.Ceiling (te.XAdvance) + (BorderWidth + Margin) * 2, (int)Math.Ceiling (fe.Height) * lines.Length + (BorderWidth + Margin) * 2);
+ }
+ }
+ return s;// +borderWidth;
+ }
+ public override void onDraw (Context gr)
+ {
+ base.onDraw (gr);
+ string[] lines = getLines;
+
+ gr.SelectFontFace(FontFace, FontSlant.Normal, FontWeight.Normal);
+
+ gr.LineWidth = BorderWidth;
+ gr.Antialias = Antialias.Subpixel;
+ //gr.FontOptions.Antialias = Antialias.Subpixel;
+ //gr.FontOptions.HintMetrics = HintMetrics.On;
+ gr.SetFontSize(FontSize);
+
+ rText = new Rectangle(new Point(0, 0),new Size((int)te.Width,(int)fe.Height * lines.Length));
+
+ widthRatio = 1f;
+ heightRatio = 1f;
+
+ Rectangle cb = clientBounds;
+
+ //ignore text alignment if size to content = true
+ if (Bounds.Size < 0)
+ {
+ rText.X = cb.X;
+ rText.Y = cb.Y;
+ }else{
+ switch (TextAlignment)
+ {
+ case Alignment.None:
+ break;
+ case Alignment.TopLeft: //ok
+ rText.X = cb.X;
+ rText.Y = cb.Y;
+ break;
+ case Alignment.TopCenter: //ok
+ rText.Y = cb.Y;
+ rText.X = cb.X + cb.Width / 2 - rText.Width / 2;
+ break;
+ case Alignment.TopRight: //ok
+ rText.X = cb.Right - rText.Width;
+ rText.Y = cb.Y;
+ break;
+ case Alignment.TopStretch://ok
+ heightRatio = widthRatio = (float)cb.Width / rText.Width;
+ rText.X = cb.X;
+ rText.Y = cb.Y;
+ rText.Width = cb.Width;
+ rText.Height = (int)(rText.Height * heightRatio);
+ break;
+ case Alignment.LeftCenter://ok
+ rText.X = cb.X;
+ rText.Y = cb.Y + cb.Height / 2 - rText.Height / 2;
+ break;
+ case Alignment.LeftStretch://ok
+ heightRatio = widthRatio = (float)cb.Height / rText.Height;
+ rText.X = cb.X;
+ rText.Y = cb.Y;
+ rText.Height = cb.Height;
+ rText.Width = (int)(widthRatio * cb.Width);
+ break;
+ case Alignment.RightCenter://ok
+ rText.X = cb.X + cb.Width - rText.Width;
+ rText.Y = cb.Y + cb.Height / 2 - rText.Height / 2;
+ break;
+ case Alignment.RightStretch://ok
+ heightRatio = widthRatio = (float)cb.Height / rText.Height;
+ rText.Height = cb.Height;
+ rText.Width = (int)(widthRatio * cb.Width);
+ rText.X = cb.X;
+ rText.Y = cb.Y;
+ break;
+ case Alignment.BottomCenter://ok
+ rText.X = cb.Width / 2 - rText.Width / 2;
+ rText.Y = cb.Height - rText.Height;
+ break;
+ case Alignment.BottomStretch://ok
+ heightRatio = widthRatio = (float)cb.Width / rText.Width;
+ rText.Width = cb.Width;
+ rText.Height = (int)(rText.Height * heightRatio);
+ rText.Y = cb.Bottom - rText.Height;
+ rText.X = cb.X;
+ break;
+ case Alignment.BottomLeft://ok
+ rText.X = cb.X;
+ rText.Y = cb.Bottom - rText.Height;
+ break;
+ case Alignment.BottomRight://ok
+ rText.Y = cb.Bottom - rText.Height;
+ rText.X = cb.Right - rText.Width;
+ break;
+ case Alignment.Center://ok
+ rText.X = cb.X + cb.Width / 2 - rText.Width / 2;
+ rText.Y = cb.Y + cb.Height / 2 - rText.Height / 2;
+ break;
+ case Alignment.Fit://ok, peut être mieu aligné
+ widthRatio = (float)cb.Width / rText.Width;
+ heightRatio = (float)cb.Height / rText.Height;
+ rText = cb;
+ break;
+ case Alignment.HorizontalStretch://ok
+ heightRatio = widthRatio = (float)cb.Width / rText.Width;
+ rText.Width = cb.Width;
+ rText.Height = (int)(heightRatio * rText.Height);
+ rText.Y = cb.Y + cb.Height / 2 - rText.Height / 2;
+ rText.X = cb.X;
+ break;
+ case Alignment.VerticalStretch://ok
+ heightRatio = widthRatio = (float)cb.Height / rText.Height;
+ rText.Height = cb.Height;
+ rText.Width = (int)(widthRatio * rText.Width);
+ rText.X = cb.X + cb.Width / 2 - rText.Width / 2;
+ rText.Y = cb.Y;
+ break;
+ default:
+ break;
+ }
+ }
+
+ gr.Color = Foreground;
+
+ gr.FontMatrix = new Matrix(widthRatio * FontSize, 0, 0, heightRatio * FontSize, 0, 0);
+
+ for (int i = 0; i < lines.Length; i++) {
+ gr.MoveTo(rText.X, rText.Y + fe.Ascent + fe.Height * i);
+ #if _WIN32 || _WIN64
+ gr.ShowText(lines[i].ToUtf8());
+ #elif __linux__
+ gr.ShowText(lines[i]);
+ #endif
+ }
+ gr.Fill();
+ }
+ }
+}
generated by cgit v1.3.1-4-g156e (git 2.54.0) at 2026-11-12 18:38:16 +0000