Initial Commit

1 files changed, 94 insertions, 0 deletions

diff --git a/src/Java/binnie/craftgui/controls/scroll/ControlScrollBar.java b/src/Java/binnie/craftgui/controls/scroll/ControlScrollBar.java
new file mode 100644
index 0000000000..a94705767d
--- /dev/null
+++ b/src/Java/binnie/craftgui/controls/scroll/ControlScrollBar.java
@@ -0,0 +1,94 @@
+package binnie.craftgui.controls.scroll;
+
+import binnie.craftgui.controls.core.Control;
+import binnie.craftgui.core.Attribute;
+import binnie.craftgui.core.CraftGUI;
+import binnie.craftgui.core.IWidget;
+import binnie.craftgui.core.geometry.IArea;
+import binnie.craftgui.core.geometry.IPoint;
+import binnie.craftgui.core.renderer.Renderer;
+import binnie.craftgui.events.EventMouse.Down;
+import binnie.craftgui.events.EventMouse.Down.Handler;
+import binnie.craftgui.events.EventMouse.Drag;
+import binnie.craftgui.events.EventMouse.Drag.Handler;
+import binnie.craftgui.resource.minecraft.CraftGUITexture;
+
+public class ControlScrollBar
+  extends Control
+{
+  protected final IControlScrollable scrollable;
+  
+  public ControlScrollBar(ControlScroll parent)
+  {
+    this(parent, 0.0F, 0.0F, parent.getSize().x(), parent.getSize().y(), parent.getScrollableWidget());
+  }
+  
+  public ControlScrollBar(IWidget parent, float x, float y, float w, float h, IControlScrollable scrollable2)
+  {
+    super(parent, x, y, w, h);
+    this.scrollable = scrollable2;
+    addAttribute(Attribute.MouseOver);
+    
+    addSelfEventHandler(new EventMouse.Drag.Handler()
+    {
+      public void onEvent(EventMouse.Drag event)
+      {
+        ControlScrollBar.this.scrollable.movePercentage(event.getDy() / (ControlScrollBar.this.h() - ControlScrollBar.this.getBarHeight()));
+      }
+    });
+    addSelfEventHandler(new EventMouse.Down.Handler()
+    {
+      public void onEvent(EventMouse.Down event)
+      {
+        float shownPercentage = ControlScrollBar.this.scrollable.getPercentageShown();
+        float percentageIndex = ControlScrollBar.this.scrollable.getPercentageIndex();
+        float minPercent = (1.0F - shownPercentage) * percentageIndex;
+        float maxPercent = minPercent + shownPercentage;
+        float clickedPercentage = ControlScrollBar.this.getRelativeMousePosition().y() / (ControlScrollBar.this.h() - 2.0F);
+        clickedPercentage = Math.max(Math.min(clickedPercentage, 1.0F), 0.0F);
+        if (clickedPercentage > maxPercent) {
+          ControlScrollBar.this.scrollable.setPercentageIndex((clickedPercentage - shownPercentage) / (1.0F - shownPercentage));
+        }
+        if (clickedPercentage < minPercent) {
+          ControlScrollBar.this.scrollable.setPercentageIndex(clickedPercentage / (1.0F - shownPercentage));
+        }
+      }
+    });
+  }
+  
+  public void onUpdateClient() {}
+  
+  public boolean isEnabled()
+  {
+    return this.scrollable.getPercentageShown() < 0.99F;
+  }
+  
+  public float getBarHeight()
+  {
+    return h() * this.scrollable.getPercentageShown();
+  }
+  
+  protected IArea getRenderArea()
+  {
+    float height = getBarHeight();
+    if (height < 6.0F) {
+      height = 6.0F;
+    }
+    float yOffset = ((int)h() - (int)getBarHeight()) * this.scrollable.getPercentageIndex();
+    
+    return new IArea(0.0F, yOffset, getSize().x(), height);
+  }
+  
+  public void onRenderBackground()
+  {
+    IArea renderArea = getRenderArea();
+    
+    Object texture = CraftGUITexture.ScrollDisabled;
+    if (isMouseOver()) {
+      texture = CraftGUITexture.ScrollHighlighted;
+    } else if (isEnabled()) {
+      texture = CraftGUITexture.Scroll;
+    }
+    CraftGUI.Render.texture(texture, renderArea);
+  }
+}