net.mograsim.logic.ui/src/net/mograsim/logic/ui/serializing/snippets/symbolrenderers/CenteredTextSymbolRendererProvider.java

   1 package net.mograsim.logic.ui.serializing.snippets.symbolrenderers;
   2
   3 import com.google.gson.JsonElement;
   4 import com.google.gson.JsonObject;
   5
   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.ui.serializing.CodeSnippetSupplier;
  10 import net.mograsim.logic.ui.serializing.DeserializedSubmodelComponent;
  11 import net.mograsim.logic.ui.serializing.snippets.Renderer;
  12 import net.mograsim.logic.ui.serializing.snippets.RendererProvider;
  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.<br>
  19  * Parameter format:
  20  *
  21  * <pre>
  22  * {
  23  *   "text": [String]
  24  *   "height": [int]
  25  * }
  26  * </pre>
  27  *
  28  * @author Daniel Kirschten
  29  */
  30 public class CenteredTextSymbolRendererProvider implements RendererProvider
  31 {
  32         @Override
  33         public Renderer create(DeserializedSubmodelComponent component, JsonElement params)
  34         {
  35                 JsonObject asJsonObject = params.getAsJsonObject();
  36                 String text = asJsonObject.getAsJsonPrimitive("text").getAsString();
  37                 int fontHeight = asJsonObject.getAsJsonPrimitive("height").getAsInt();
  38                 return (gc, visReg) ->
  39                 {
  40                         Font oldFont = gc.getFont();
  41                         gc.setFont(new Font(oldFont.getName(), fontHeight, oldFont.getStyle()));
  42                         ColorDefinition fg = Preferences.current().getColorDefinition("net.mograsim.logic.ui.color.text");
  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
  52         static
  53         {
  54                 CodeSnippetSupplier.setSymbolRendererProvider(CenteredTextSymbolRendererProvider.class.getCanonicalName(),
  55                                 new CenteredTextSymbolRendererProvider());
  56         }
  57 }