/*
* Forge Mod Loader
* Copyright (c) 2012-2013 cpw.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Lesser Public License v2.1
* which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* Contributors:
* cpw - implementation
*/
package cpw.mods.fml.client;
import java.util.List;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.Gui;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.renderer.OpenGlHelper;
import net.minecraft.client.renderer.Tessellator;
import org.lwjgl.input.Mouse;
import org.lwjgl.opengl.GL11;
public abstract class GuiScrollingList
{
private final Minecraft client;
protected final int listWidth;
protected final int listHeight;
protected final int top;
protected final int bottom;
private final int right;
protected final int left;
protected final int slotHeight;
private int scrollUpActionId;
private int scrollDownActionId;
protected int mouseX;
protected int mouseY;
private float initialMouseClickY = -2.0F;
private float scrollFactor;
private float scrollDistance;
private int selectedIndex = -1;
private long lastClickTime = 0L;
private boolean field_25123_p = true;
private boolean field_27262_q;
private int field_27261_r;
public GuiScrollingList(Minecraft client, int width, int height, int top, int bottom, int left, int entryHeight)
{
this.client = client;
this.listWidth = width;
this.listHeight = height;
this.top = top;
this.bottom = bottom;
this.slotHeight = entryHeight;
this.left = left;
this.right = width + this.left;
}
public void func_27258_a(boolean p_27258_1_)
{
this.field_25123_p = p_27258_1_;
}
protected void func_27259_a(boolean p_27259_1_, int p_27259_2_)
{
this.field_27262_q = p_27259_1_;
this.field_27261_r = p_27259_2_;
if (!p_27259_1_)
{
this.field_27261_r = 0;
}
}
protected abstract int getSize();
protected abstract void elementClicked(int index, boolean doubleClick);
protected abstract boolean isSelected(int index);
protected int getContentHeight()
{
return this.getSize() * this.slotHeight + this.field_27261_r;
}
protected abstract void drawBackground();
protected abstract void drawSlot(int var1, int var2, int var3, int var4, Tessellator var5);
protected void func_27260_a(int p_27260_1_, int p_27260_2_, Tessellator p_27260_3_) {}
protected void func_27255_a(int p_27255_1_, int p_27255_2_) {}
protected void func_27257_b(int p_27257_1_, int p_27257_2_) {}
public int func_27256_c(int p_27256_1_, int p_27256_2_)
{
int var3 = this.left + 1;
int var4 = this.left + this.listWidth - 7;
int var5 = p_27256_2_ - this.top - this.field_27261_r + (int)this.scrollDistance - 4;
int var6 = var5 / this.slotHeight;
return p_27256_1_ >= var3 && p_27256_1_ <= var4 && var6 >= 0 && var5 >= 0 && var6 < this.getSize() ? var6 : -1;
}
public void registerScrollButtons(@SuppressWarnings("rawtypes") List p_22240_1_, int p_22240_2_, int p_22240_3_)
{
this.scrollUpActionId = p_22240_2_;
this.scrollDownActionId = p_22240_3_;
}
private void applyScrollLimits()
{
int var1 = this.getContentHeight() - (this.bottom - this.top - 4);
if (var1 < 0)
{
var1 /= 2;
}
if (this.scrollDistance < 0.0F)
{
this.scrollDistance = 0.0F;
}
if (this.scrollDistance > (float)var1)
{
this.scrollDistance = (float)var1;
}
}
public void actionPerformed(GuiButton button)
{
if (button.enabled)
{
if (button.id == this.scrollUpActionId)
{
this.scrollDistance -= (float)(this.slotHeight * 2 / 3);
this.initialMouseClickY = -2.0F;
this.applyScrollLimits();
}
else if (button.id == this.scrollDownActionId)
{
this.scrollDistance += (float)(this.slotHeight * 2 / 3);
this.initialMouseClickY = -2.0F;
this.applyScrollLimits();
}
}
}
public void drawScreen(int mouseX, int mouseY, float p_22243_3_)
{
this.mouseX = mouseX;
this.mouseY = mouseY;
this.drawBackground();
int listLength = this.getSize();
int scrollBarXStart = this.left + this.listWidth - 6;
int scrollBarXEnd = scrollBarXStart + 6;
int boxLeft = this.left;
int boxRight = scrollBarXStart-1;
int var10;
int var11;
int var13;
int var19;
if (Mouse.isButtonDown(0))
{
if (this.initialMouseClickY == -1.0F)
{
boolean var7 = true;
if (mouseY >= this.top && mouseY <= this.bottom)
{
var10 = mouseY - this.top - this.field_27261_r + (int)this.scrollDistance - 4;
var11 = var10 / this.slotHeight;
if (mouseX >= boxLeft && mouseX <= boxRight && var11 >= 0 && var10 >= 0 && var11 < listLength)
{
boolean var12 = var11 == this.selectedIndex && System.currentTimeMillis() - this.lastClickTime < 250L;
this.elementClicked(var11, var12);
this.selectedIndex = var11;
this.lastClickTime = System.currentTimeMillis();
}
else if (mouseX >= boxLeft && mouseX <= boxRight && var10 < 0)
{
this.func_27255_a(mouseX - boxLeft, mouseY - this.top + (int)this.scrollDistance - 4);
var7 = false;
}
if (mouseX >= scrollBarXStart && mouseX <= scrollBarXEnd)
{
this.scrollFactor = -1.0F;
var19 = this.getContentHeight() - (this.bottom - this.top - 4);
if (var19 < 1)
{
var19 = 1;
}
var13 = (int)((float)((this.bottom - this.top) * (this.bottom - this.top)) / (float)this.getContentHeight());
if (var13 < 32)
{
var13 = 32;
}
if (var13 > this.bottom - this.top - 8)
{
var13 = this.bottom - this.top - 8;
}
this.scrollFactor /= (float)(this.bottom - this.top - var13) / (float)var19;
}
else
{
this.scrollFactor = 1.0F;
}
if (var7)
{
this.initialMouseClickY = (float)mouseY;
}
else
{
this.initialMouseClickY = -2.0F;
}
}
else
{
this.initialMouseClickY = -2.0F;
}
}
else if (this.initialMouseClickY >= 0.0F)
{
this.scrollDistance -= ((float)mouseY - this.initialMouseClickY) * this.scrollFactor;
this.initialMouseClickY = (float)mouseY;
}
}
else
{
while (Mouse.next())
{
int var16 = Mouse.getEventDWheel();
if (var16 != 0)
{
if (var16 > 0)
{
var16 = -1;
}
else if (var16 < 0)
{
var16 = 1;
}
this.scrollDistance += (float)(var16 * this.slotHeight / 2);
}
}
this.initialMouseClickY = -1.0F;
}
this.applyScrollLimits();
Tessellator var18 = Tessellator.instance;
if (this.client.theWorld != null)
{
this.drawGradientRect(this.left, this.top, this.right, this.bottom, -1072689136, -804253680);
}
else
{
GL11.glDisable(GL11.GL_LIGHTING);
GL11.glDisable(GL11.GL_FOG);
this.client.renderEngine.bindTexture(Gui.optionsBackground);
GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
float var17 = 32.0F;
var18.startDrawingQuads();
var18.setColorOpaque_I(2105376);
var18.addVertexWithUV((double)this.left, (double)this.bottom, 0.0D, (double)((float)this.left / var17), (double)((float)(this.bottom + (int)this.scrollDistance) / var17));
var18.addVertexWithUV((double)this.right, (double)this.bottom, 0.0D, (double)((float)this.right / var17), (double)((float)(this.bottom + (int)this.scrollDistance) / var17));
var18.addVertexWithUV((double)this.right, (double)this.top, 0.0D, (double)((float)this.right / var17), (double)((float)(this.top + (int)this.scrollDistance) / var17));
var18.addVertexWithUV((double)this.left, (double)this.top, 0.0D, (double)((float)this.left / var17), (double)((float)(this.top + (int)this.scrollDistance) / var17));
var18.draw();
}
// boxRight = this.listWidth / 2 - 92 - 16;
var10 = this.top + 4 - (int)this.scrollDistance;
if (this.field_27262_q)
{
this.func_27260_a(boxRight, var10, var18);
}
int var14;
for (var11 = 0; var11 < listLength; ++var11)
{
var19 = var10 + var11 * this.slotHeight + this.field_27261_r;
var13 = this.slotHeight - 4;
if (var19 <= this.bottom && var19 + var13 >= this.top)
{
if (this.field_25123_p && this.isSelected(var11))
{
var14 = boxLeft;
int var15 = boxRight;
GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
GL11.glDisable(GL11.GL_TEXTURE_2D);
var18.startDrawingQuads();
var18.setColorOpaque_I(8421504);
var18.addVertexWithUV((double)var14, (double)(var19 + var13 + 2), 0.0D, 0.0D, 1.0D);
var18.addVertexWithUV((double)var15, (double)(var19 + var13 + 2), 0.0D, 1.0D, 1.0D);
var18.addVertexWithUV((double)var15, (double)(var19 - 2), 0.0D, 1.0D, 0.0D);
var18.addVertexWithUV((double)var14, (double)(var19 - 2), 0.0D, 0.0D, 0.0D);
var18.setColorOpaque_I(0);
var18.addVertexWithUV((double)(var14 + 1), (double)(var19 + var13 + 1), 0.0D, 0.0D, 1.0D);
var18.addVertexWithUV((double)(var15 - 1), (double)(var19 + var13 + 1), 0.0D, 1.0D, 1.0D);
var18.addVertexWithUV((double)(var15 - 1), (double)(var19 - 1), 0.0D, 1.0D, 0.0D);
var18.addVertexWithUV((double)(var14 + 1), (double)(var19 - 1), 0.0D, 0.0D, 0.0D);
var18.draw();
GL11.glEnable(GL11.GL_TEXTURE_2D);
}
this.drawSlot(var11, boxRight, var19, var13, var18);
}
}
GL11.glDisable(GL11.GL_DEPTH_TEST);
byte var20 = 4;
if (this.client.theWorld == null)
{
this.overlayBackground(0, this.top, 255, 255);
this.overlayBackground(this.bottom, this.listHeight, 255, 255);
}
GL11.glEnable(GL11.GL_BLEND);
GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
GL11.glDisable(GL11.GL_ALPHA_TEST);
GL11.glShadeModel(GL11.GL_SMOOTH);
GL11.glDisable(GL11.GL_TEXTURE_2D);
var18.startDrawingQuads();
var18.setColorRGBA_I(0, 0);
var18.addVertexWithUV((double)this.left, (double)(this.top + var20), 0.0D, 0.0D, 1.0D);
var18.addVertexWithUV((double)this.right, (double)(this.top + var20), 0.0D, 1.0D, 1.0D);
var18.setColorRGBA_I(0, 255);
var18.addVertexWithUV((double)this.right, (double)this.top, 0.0D, 1.0D, 0.0D);
var18.addVertexWithUV((double)this.left, (double)this.top, 0.0D, 0.0D, 0.0D);
var18.draw();
var18.startDrawingQuads();
var18.setColorRGBA_I(0, 255);
var18.addVertexWithUV((double)this.left, (double)this.bottom, 0.0D, 0.0D, 1.0D);
var18.addVertexWithUV((double)this.right, (double)this.bottom, 0.0D, 1.0D, 1.0D);
var18.setColorRGBA_I(0, 0);
var18.addVertexWithUV((double)this.right, (double)(this.bottom - var20), 0.0D, 1.0D, 0.0D);
var18.addVertexWithUV((double)this.left, (double)(this.bottom - var20), 0.0D, 0.0D, 0.0D);
var18.draw();
var19 = this.getContentHeight() - (this.bottom - this.top - 4);
if (var19 > 0)
{
var13 = (this.bottom - this.top) * (this.bottom - this.top) / this.getContentHeight();
if (var13 < 32)
{
var13 = 32;
}
if (var13 > this.bottom - this.top - 8)
{
var13 = this.bottom - this.top - 8;
}
var14 = (int)this.scrollDistance * (this.bottom - this.top - var13) / var19 + this.top;
if (var14 < this.top)
{
var14 = this.top;
}
var18.startDrawingQuads();
var18.setColorRGBA_I(0, 255);
var18.addVertexWithUV((double)scrollBarXStart, (double)this.bottom, 0.0D, 0.0D, 1.0D);
var18.addVertexWithUV((double)scrollBarXEnd, (double)this.bottom, 0.0D, 1.0D, 1.0D);
var18.addVertexWithUV((double)scrollBarXEnd, (double)this.top, 0.0D, 1.0D, 0.0D);
var18.addVertexWithUV((double)scrollBarXStart, (double)this.top, 0.0D, 0.0D, 0.0D);
var18.draw();
var18.startDrawingQuads();
var18.setColorRGBA_I(8421504, 255);
var18.addVertexWithUV((double)scrollBarXStart, (double)(var14 + var13), 0.0D, 0.0D, 1.0D);
var18.addVertexWithUV((double)scrollBarXEnd, (double)(var14 + var13), 0.0D, 1.0D, 1.0D);
var18.addVertexWithUV((double)scrollBarXEnd, (double)var14, 0.0D, 1.0D, 0.0D);
var18.addVertexWithUV((double)scrollBarXStart, (double)var14, 0.0D, 0.0D, 0.0D);
var18.draw();
var18.startDrawingQuads();
var18.setColorRGBA_I(12632256, 255);
var18.addVertexWithUV((double)scrollBarXStart, (double)(var14 + var13 - 1), 0.0D, 0.0D, 1.0D);
var18.addVertexWithUV((double)(scrollBarXEnd - 1), (double)(var14 + var13 - 1), 0.0D, 1.0D, 1.0D);
var18.addVertexWithUV((double)(scrollBarXEnd - 1), (double)var14, 0.0D, 1.0D, 0.0D);
var18.addVertexWithUV((double)scrollBarXStart, (double)var14, 0.0D, 0.0D, 0.0D);
var18.draw();
}
this.func_27257_b(mouseX, mouseY);
GL11.glEnable(GL11.GL_TEXTURE_2D);
GL11.glShadeModel(GL11.GL_FLAT);
GL11.glEnable(GL11.GL_ALPHA_TEST);
GL11.glDisable(GL11.GL_BLEND);
}
private void overlayBackground(int p_22239_1_, int p_22239_2_, int p_22239_3_, int p_22239_4_)
{
Tessellator var5 = Tessellator.instance;
this.client.renderEngine.bindTexture(Gui.optionsBackground);
GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
float var6 = 32.0F;
var5.startDrawingQuads();
var5.setColorRGBA_I(4210752, p_22239_4_);
var5.addVertexWithUV(0.0D, (double)p_22239_2_, 0.0D, 0.0D, (double)((float)p_22239_2_ / var6));
var5.addVertexWithUV((double)this.listWidth + 30, (double)p_22239_2_, 0.0D, (double)((float)(this.listWidth + 30) / var6), (double)((float)p_22239_2_ / var6));
var5.setColorRGBA_I(4210752, p_22239_3_);
var5.addVertexWithUV((double)this.listWidth + 30, (double)p_22239_1_, 0.0D, (double)((float)(this.listWidth + 30) / var6), (double)((float)p_22239_1_ / var6));
var5.addVertexWithUV(0.0D, (double)p_22239_1_, 0.0D, 0.0D, (double)((float)p_22239_1_ / var6));
var5.draw();
}
protected void drawGradientRect(int par1, int par2, int par3, int par4, int par5, int par6)
{
float f = (float)(par5 >> 24 & 255) / 255.0F;
float f1 = (float)(par5 >> 16 & 255) / 255.0F;
float f2 = (float)(par5 >> 8 & 255) / 255.0F;
float f3 = (float)(par5 & 255) / 255.0F;
float f4 = (float)(par6 >> 24 & 255) / 255.0F;
float f5 = (float)(par6 >> 16 & 255) / 255.0F;
float f6 = (float)(par6 >> 8 & 255) / 255.0F;
float f7 = (float)(par6 & 255) / 255.0F;
GL11.glDisable(GL11.GL_TEXTURE_2D);
GL11.glEnable(GL11.GL_BLEND);
GL11.glDisable(GL11.GL_ALPHA_TEST);
OpenGlHelper.glBlendFunc(770, 771, 1, 0);
GL11.glShadeModel(GL11.GL_SMOOTH);
Tessellator tessellator = Tessellator.instance;
tessellator.startDrawingQuads();
tessellator.setColorRGBA_F(f1, f2, f3, f);
tessellator.addVertex((double)par3, (double)par2, 0.0D);
tessellator.addVertex((double)par1, (double)par2, 0.0D);
tessellator.setColorRGBA_F(f5, f6, f7, f4);
tessellator.addVertex((double)par1, (double)par4, 0.0D);
tessellator.addVertex((double)par3, (double)par4, 0.0D);
tessellator.draw();
GL11.glShadeModel(GL11.GL_FLAT);
GL11.glDisable(GL11.GL_BLEND);
GL11.glEnable(GL11.GL_ALPHA_TEST);
GL11.glEnable(GL11.GL_TEXTURE_2D);
}
}