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 static net.mograsim.logic.model.preferences.RenderPreferences.TEXT_COLOR;
   4
   5 import net.haspamelodica.swt.helper.gcs.GeneralGC;
   6 import net.haspamelodica.swt.helper.swtobjectwrappers.Font;
   7 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
   8 import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;
   9 import net.mograsim.logic.model.model.components.ModelComponent;
  10 import net.mograsim.logic.model.preferences.RenderPreferences;
  11 import net.mograsim.logic.model.serializing.IdentifyParams;
  12 import net.mograsim.logic.model.snippets.Renderer;
  13 import net.mograsim.logic.model.snippets.SnippetDefinintion;
  14 import net.mograsim.logic.model.snippets.SubmodelComponentSnippetSuppliers;
  15 import net.mograsim.preferences.ColorDefinition;
  16 import net.mograsim.preferences.ColorManager;
  17
  18 /**
  19  * Renders a text (<code>"text"</code>) with a given font height (<code>"height"</code>) in the center of the component.
  20  *
  21  * @author Daniel Kirschten
  22  */
  23 public class CenteredTextSymbolRenderer implements Renderer
  24 {
  25         private final ModelComponent component;
  26         private final String text;
  27         private final double fontHeight;
  28
  29         public CenteredTextSymbolRenderer(ModelComponent component, CenteredTextParams params)
  30         {
  31                 this.component = component;
  32                 this.text = params.text;
  33                 this.fontHeight = params.fontHeight;
  34
  35         }
  36
  37         @Override
  38         public void render(GeneralGC gc, RenderPreferences renderPrefs, Rectangle visibleRegion)
  39         {
  40                 Font oldFont = gc.getFont();
  41                 gc.setFont(new Font(oldFont.getName(), fontHeight, oldFont.getStyle()));
  42                 ColorDefinition fg = renderPrefs.getColorDefinition(TEXT_COLOR);
  43                 if (fg != null)
  44                         gc.setForeground(ColorManager.current().toColor(fg));
  45                 Point idSize = gc.textExtent(text);
  46                 Rectangle bounds = component.getBounds();
  47                 gc.drawText(text, bounds.x + (bounds.width - idSize.x) / 2, bounds.y + (bounds.height - idSize.y) / 2, true);
  48                 gc.setFont(oldFont);
  49         }
  50
  51         @Override
  52         public String getIDForSerializing(IdentifyParams idParams)
  53         {
  54                 return "centeredText";
  55         }
  56
  57         @Override
  58         public CenteredTextParams getParamsForSerializing(IdentifyParams idParams)
  59         {
  60                 CenteredTextParams params = new CenteredTextParams();
  61                 params.text = text;
  62                 params.fontHeight = fontHeight;
  63                 return params;
  64         }
  65
  66         public static class CenteredTextParams
  67         {
  68                 public String text;
  69                 public double fontHeight;
  70         }
  71
  72         static
  73         {
  74                 SubmodelComponentSnippetSuppliers.symbolRendererSupplier.setSnippetSupplier(CenteredTextSymbolRenderer.class.getCanonicalName(),
  75                                 SnippetDefinintion.create(CenteredTextParams.class, CenteredTextSymbolRenderer::new));
  76         }
  77 }