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