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.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 GUIComponent component;
  24         private final CenteredTextParams params;
  25
  26         public CenteredTextSymbolRenderer(SubmodelComponent component, CenteredTextParams params)
  27         {
  28                 this.component = component;
  29                 this.params = params;
  30
  31         }
  32
  33         @Override
  34         public void render(GeneralGC gc, Rectangle visibleRegion)
  35         {
  36                 Font oldFont = gc.getFont();
  37                 gc.setFont(new Font(oldFont.getName(), params.fontHeight, oldFont.getStyle()));
  38                 ColorDefinition fg = Preferences.current().getColorDefinition("net.mograsim.logic.ui.color.text");
  39                 if (fg != null)
  40                         gc.setForeground(ColorManager.current().toColor(fg));
  41                 Point idSize = gc.textExtent(params.text);
  42                 Rectangle bounds = component.getBounds();
  43                 gc.drawText(params.text, bounds.x + (bounds.width - idSize.x) / 2, bounds.y + (bounds.height - idSize.y) / 2, true);
  44                 gc.setFont(oldFont);
  45         }
  46
  47         public static class CenteredTextParams
  48         {
  49                 public String text;
  50                 public double fontHeight;
  51         }
  52
  53         static
  54         {
  55                 SubmodelComponentSnippetSuppliers.symbolRendererSupplier.setSnippetSupplier(CenteredTextSymbolRenderer.class.getCanonicalName(),
  56                                 SnippetDefinintion.create(CenteredTextParams.class, CenteredTextSymbolRenderer::new));
  57         }
  58 }