plugins/net.mograsim.logic.model/src/net/mograsim/logic/model/snippets/symbolrenderers/CenteredTextSymbolRenderer.java

   1 package net.mograsim.logic.model.snippets.symbolrenderers;
   2
   3 import net.haspamelodica.swt.helper.gcs.GeneralGC;
   4 import net.haspamelodica.swt.helper.swtobjectwrappers.Font;
   5 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
   6 import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;
   7 import net.mograsim.logic.model.model.components.ModelComponent;
   8 import net.mograsim.logic.model.serializing.IdentifyParams;
   9 import net.mograsim.logic.model.snippets.Renderer;
  10 import net.mograsim.logic.model.snippets.SnippetDefinintion;
  11 import net.mograsim.logic.model.snippets.SubmodelComponentSnippetSuppliers;
  12 import net.mograsim.preferences.ColorDefinition;
  13 import net.mograsim.preferences.ColorManager;
  14 import net.mograsim.preferences.Preferences;
  15
  16 /**
  17  * Renders a text (<code>"text"</code>) with a given font height (<code>"height"</code>) in the center of the component.
  18  *
  19  * @author Daniel Kirschten
  20  */
  21 public class CenteredTextSymbolRenderer implements Renderer
  22 {
  23         private final ModelComponent component;
  24         private final String text;
  25         private final double fontHeight;
  26
  27         public CenteredTextSymbolRenderer(ModelComponent component, CenteredTextParams params)
  28         {
  29                 this.component = component;
  30                 this.text = params.text;
  31                 this.fontHeight = params.fontHeight;
  32
  33         }
  34
  35         @Override
  36         public void render(GeneralGC gc, Rectangle visibleRegion)
  37         {
  38                 Font oldFont = gc.getFont();
  39                 gc.setFont(new Font(oldFont.getName(), fontHeight, oldFont.getStyle()));
  40                 ColorDefinition fg = Preferences.current().getColorDefinition("net.mograsim.logic.model.color.text");
  41                 if (fg != null)
  42                         gc.setForeground(ColorManager.current().toColor(fg));
  43                 Point idSize = gc.textExtent(text);
  44                 Rectangle bounds = component.getBounds();
  45                 gc.drawText(text, bounds.x + (bounds.width - idSize.x) / 2, bounds.y + (bounds.height - idSize.y) / 2, true);
  46                 gc.setFont(oldFont);
  47         }
  48
  49         @Override
  50         public String getIDForSerializing(IdentifyParams idParams)
  51         {
  52                 return "centeredText";
  53         }
  54
  55         @Override
  56         public CenteredTextParams getParamsForSerializing(IdentifyParams idParams)
  57         {
  58                 CenteredTextParams params = new CenteredTextParams();
  59                 params.text = text;
  60                 params.fontHeight = fontHeight;
  61                 return params;
  62         }
  63
  64         public static class CenteredTextParams
  65         {
  66                 public String text;
  67                 public double fontHeight;
  68         }
  69
  70         static
  71         {
  72                 SubmodelComponentSnippetSuppliers.symbolRendererSupplier.setSnippetSupplier(CenteredTextSymbolRenderer.class.getCanonicalName(),
  73                                 SnippetDefinintion.create(CenteredTextParams.class, CenteredTextSymbolRenderer::new));
  74         }
  75 }