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

   1 package net.mograsim.logic.ui.serializing.snippets.symbolrenderers;
   2
   3 import java.util.Map.Entry;
   4
   5 import org.eclipse.swt.graphics.Color;
   6
   7 import com.google.gson.JsonElement;
   8 import com.google.gson.JsonObject;
   9
  10 import net.haspamelodica.swt.helper.swtobjectwrappers.Font;
  11 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
  12 import net.mograsim.logic.ui.model.wires.Pin;
  13 import net.mograsim.logic.ui.serializing.CodeSnippetSupplier;
  14 import net.mograsim.logic.ui.serializing.DeserializedSubmodelComponent;
  15 import net.mograsim.logic.ui.serializing.snippets.Renderer;
  16 import net.mograsim.logic.ui.serializing.snippets.RendererProvider;
  17 import net.mograsim.preferences.Preferences;
  18
  19 /**
  20  * Renders a text (<code>"centerText"</code>) with a given font height (<code>"centerTextHeight"</code>) in the center of the component and
  21  * draws a label for each pin with a given font height (<code>"pinLabelHeight"</code>). The labels of pins to the left of a given x
  22  * coordinate (<code>"horizontalComponentCenter"</code>) are drawn to the right of the respective pin; labels of pins to the right are drawn
  23  * left. A margin (<code>"pinLabelMargin"</code>) is applied for pin label drawing.<br>
  24  * Parameter format:
  25  *
  26  * <pre>
  27  * {
  28  *   "centerText": [String]
  29  *   "centerTextHeight": [double]
  30  *   "horizontalComponentCenter": [double]
  31  *   "pinLabelHeight": [double]
  32  *   "pinLabelMargin": [double]
  33  * }
  34  * </pre>
  35  *
  36  * @author Daniel Kirschten
  37  */
  38 public class SimpleRectangularLikeSymbolRendererProvider implements RendererProvider
  39 {
  40         @Override
  41         public Renderer create(DeserializedSubmodelComponent component, JsonElement params)
  42         {
  43                 JsonObject asJsonObject = params.getAsJsonObject();
  44                 String centerText = asJsonObject.getAsJsonPrimitive("centerText").getAsString();
  45                 double centerTextHeight = asJsonObject.getAsJsonPrimitive("centerTextHeight").getAsDouble();
  46                 double horizontalComponentCenter = asJsonObject.getAsJsonPrimitive("horizontalComponentCenter").getAsDouble();
  47                 double pinLabelHeight = asJsonObject.getAsJsonPrimitive("pinLabelHeight").getAsDouble();
  48                 double pinLabelMargin = asJsonObject.getAsJsonPrimitive("pinLabelMargin").getAsDouble();
  49                 return (gc, visReg) ->
  50                 {
  51                         double posX = component.getPosX();
  52                         double posY = component.getPosY();
  53                         double width = component.getWidth();
  54                         double height = component.getHeight();
  55
  56                         Font oldFont = gc.getFont();
  57                         gc.setFont(new Font(oldFont.getName(), centerTextHeight, oldFont.getStyle()));
  58                         Point textExtent = gc.textExtent(centerText);
  59                         Color textColor = Preferences.current().getColor("net.mograsim.logic.ui.color.text");
  60                         if (textColor != null)
  61                                 gc.setForeground(textColor);
  62                         gc.drawText(centerText, posX + (width - textExtent.x) / 2, posY + (height - textExtent.y) / 2, true);
  63                         gc.setFont(new Font(oldFont.getName(), pinLabelHeight, oldFont.getStyle()));
  64                         for (Entry<String, Pin> pinEntry : component.getPins().entrySet())
  65                         {
  66                                 String pinName = pinEntry.getKey();
  67                                 Pin pin = pinEntry.getValue();
  68                                 double pinX = pin.getRelX();
  69                                 double pinY = posY + pin.getRelY();
  70                                 textExtent = gc.textExtent(pinName);
  71                                 gc.drawText(pinName, posX + pinX + (pinX > horizontalComponentCenter ? -textExtent.x - pinLabelMargin : pinLabelMargin),
  72                                                 pinY - textExtent.y / 2, true);
  73                         }
  74                         gc.setFont(oldFont);
  75                 };
  76         }
  77
  78         static
  79         {
  80                 CodeSnippetSupplier.setSymbolRendererProvider(SimpleRectangularLikeSymbolRendererProvider.class.getCanonicalName(),
  81                                 new SimpleRectangularLikeSymbolRendererProvider());
  82         }
  83 }