package com.dynious.versionchecker.client.gui;
import com.dynious.versionchecker.lib.Resources;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.Gui;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.renderer.BufferBuilder;
import net.minecraft.client.renderer.OpenGlHelper;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
import org.lwjgl.input.Mouse;
import org.lwjgl.opengl.GL11;
import java.util.List;
public abstract class GuiScroll
{
protected 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 isSelectable = true;
private boolean hasCustomHeader;
private int customHeaderHeight;
public boolean disableInput = false;
protected int horizontalPadding;
protected int verticalPadding;
public GuiScroll(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 setSelectable(boolean isSelectable)
{
this.isSelectable = isSelectable;
}
protected void setHasCustomHeader(boolean hasCustomHeader, int customHeaderHeight)
{
this.hasCustomHeader = hasCustomHeader;
this.customHeaderHeight = hasCustomHeader ? customHeaderHeight : 0;
}
public void setPadding(int horizontalPadding, int verticalPadding)
{
this.horizontalPadding = horizontalPadding;
this.verticalPadding = verticalPadding;
}
protected abstract int getSize();
protected int getSlotHeight(int slotIndex)
{
return slotHeight;
}
protected abstract void elementClicked(int index, boolean doubleClick);
protected abstract boolean isSelected(int index);
protected int getContentHeight()
{
int contentHeight = 0;
for (int slotIndex = 0; slotIndex < getSize(); slotIndex++)
{
contentHeight += getSlotHeight(slotIndex);
}
return contentHeight + customHeaderHeight;
}
protected abstract void drawBackground();
protected abstract void drawSlot(int slotIndex, int minX, int maxX, int minY, int maxY, Tessellator tesselator);
protected void drawCustomHeader(int maxX, int topY, Tessellator tesselator)
{
}
protected void onMouseDownOutsideOfSlots(int relativeX, int relativeY)
{
}
protected void drawForeground(int mouseX, int mouseY)
{
}
public int getSlotIndexAtPosition(int x, int y)
{
int minX = this.left + 1 + horizontalPadding;
int maxX = this.left + this.listWidth - 7 - horizontalPadding;
if (mouseX >= minX && mouseX <= maxX)
{
int relativeY = y - this.top - this.customHeaderHeight - verticalPadding + (int) this.scrollDistance;
int currentTopY = 0;
for (int slotIndex = 0; slotIndex < getSize(); slotIndex++)
{
int currentBottomY = currentTopY + getSlotHeight(slotIndex);
if (relativeY >= currentTopY && relativeY < currentBottomY)
return slotIndex;
currentTopY = currentBottomY;
}
}
return -1;
}
public void registerScrollButtons(@SuppressWarnings("rawtypes") List p_22240_1_, int scrollUpActionId, int scrollDownActionId)
{
this.scrollUpActionId = scrollUpActionId;
this.scrollDownActionId = scrollDownActionId;
}
private void applyScrollLimits()
{
float maxScrollDistance = getMaxScrollDistance();
if (maxScrollDistance > 0)
scrollDistance = Math.max(0, Math.min(getMaxScrollDistance(), scrollDistance));
else
scrollDistance = maxScrollDistance / 2;
}
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 float getMaxScrollDistance()
{
return getContentHeight() - getVisibleHeight() + verticalPadding * 2;
}
public int getVisibleHeight()
{
return bottom - top;
}
public int getScrollBarHeight()
{
int scrollBarHeight = (int) ((float) (getVisibleHeight() * getVisibleHeight()) / (float) getContentHeight());
scrollBarHeight = Math.max(32, Math.min(getVisibleHeight() - 8, scrollBarHeight));
return scrollBarHeight;
}
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 + horizontalPadding;
int boxRight = scrollBarXStart - 1 - horizontalPadding;
if (!disableInput)
{
if (Mouse.isButtonDown(0))
{
// this is the case when the mouse was not down last frame
if (this.initialMouseClickY == -1.0F)
{
if (mouseX >= scrollBarXStart && mouseX <= scrollBarXEnd && mouseY >= this.top && mouseY <= this.bottom)
{
this.scrollFactor = -1.0F / ((float) (getVisibleHeight() - getScrollBarHeight()) / (float) Math.max(1, getMaxScrollDistance()));
this.initialMouseClickY = (float) mouseY;
}
else
{
int clickedSlotIndex = getSlotIndexAtPosition(mouseX, mouseY);
if (clickedSlotIndex >= 0)
{
boolean isDoubleClick = clickedSlotIndex == this.selectedIndex && System.currentTimeMillis() - this.lastClickTime < 250L;
this.elementClicked(clickedSlotIndex, isDoubleClick);
this.selectedIndex = clickedSlotIndex;
this.lastClickTime = System.currentTimeMillis();
}
else
{
this.onMouseDownOutsideOfSlots(mouseX - boxLeft, mouseY - this.top + (int) this.scrollDistance);
}
// -2 will disable scrolling until the mouse is released
this.initialMouseClickY = -2.0F;
}
}
else if (this.initialMouseClickY >= 0.0F)
{
this.scrollDistance -= ((float) mouseY - this.initialMouseClickY) * this.scrollFactor;
this.initialMouseClickY = (float) mouseY;
}
}
// mouse is not down
else
{
// scroll wheel
while (Mouse.next())
{
int deltaZ = -Mouse.getEventDWheel();
deltaZ = deltaZ > 0 ? 1 : (deltaZ < 0 ? -1 : 0);
this.scrollDistance += (float) (getSize() < 20 ? deltaZ * this.slotHeight * 2 : deltaZ * this.getContentHeight() / 20f);
}
// will try to initialize scrolling on next mouse click
this.initialMouseClickY = -1.0F;
}
}
this.applyScrollLimits();
Tessellator tess = Tessellator.getInstance();
BufferBuilder worldr = tess.getBuffer(); // Used to be WorldRenderer worldr = tess.getWorldRenderer();
if (this.client.world != 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.OPTIONS_BACKGROUND);
GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
float var17 = 32.0F;
worldr.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
worldr.pos((double) this.left, (double) this.bottom, 0.0D).tex( (double) ((float) this.left / var17), (double) ((float) (this.bottom + (int) this.scrollDistance) / var17) ).color(0x20, 0x20, 0x20, 255).endVertex();
worldr.pos((double) this.right, (double) this.bottom, 0.0D).tex((double) ((float) this.right / var17), (double) ((float) (this.bottom + (int) this.scrollDistance) / var17)).color(0x20, 0x20, 0x20, 255).endVertex();
worldr.pos((double) this.right, (double) this.top, 0.0D).tex((double) ((float) this.right / var17), (double) ((float) (this.top + (int) this.scrollDistance) / var17)).color(0x20, 0x20, 0x20, 255).endVertex();
worldr.pos((double) this.left, (double) this.top, 0.0D).tex((double) ((float) this.left / var17), (double) ((float) (this.top + (int) this.scrollDistance) / var17)).color(0x20, 0x20, 0x20, 255).endVertex();
tess.draw();
}
// boxRight = this.listWidth / 2 - 92 - 16;
int topOffsetByScrollDistance = this.top - (int) this.scrollDistance;
if (this.hasCustomHeader)
{
this.drawCustomHeader(boxRight, topOffsetByScrollDistance, tess);
}
int drawY = topOffsetByScrollDistance + customHeaderHeight + verticalPadding;
for (int slotIndex = 0; slotIndex < listLength; ++slotIndex)
{
int curSlotHeight = getSlotHeight(slotIndex);
if (drawY <= this.bottom && drawY + curSlotHeight >= this.top)
{
if (this.isSelectable && this.isSelected(slotIndex))
{
GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
GL11.glDisable(GL11.GL_TEXTURE_2D);
worldr.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
worldr.pos((double) boxLeft, (double) (drawY + curSlotHeight + 2), 0.0D).tex( 0.0D, 1.0D).color(0x80,0x80,0x80,255).endVertex();
worldr.pos((double) boxRight, (double) (drawY + curSlotHeight + 2), 0.0D).tex( 1.0D, 1.0D).color(0x80,0x80,0x80,255).endVertex();
worldr.pos((double) boxRight, (double) (drawY - 2), 0.0D).tex( 1.0D, 0.0D).color(0x80,0x80,0x80,255).endVertex();
worldr.pos((double) boxLeft, (double) (drawY - 2), 0.0D).tex( 0.0D, 0.0D).color(0x80,0x80,0x80,255).endVertex();
worldr.pos((double) (boxLeft + 1), (double) (drawY + curSlotHeight + 1), 0.0D).tex( 0.0D, 1.0D).color(0x80,0x80,0x80,255).endVertex();
worldr.pos((double) (boxRight - 1), (double) (drawY + curSlotHeight + 1), 0.0D).tex( 1.0D, 1.0D).color(0x80,0x80,0x80,255).endVertex();
worldr.pos((double) (boxRight - 1), (double) (drawY - 1), 0.0D).tex( 1.0D, 0.0D).color(0x80,0x80,0x80,255).endVertex();
worldr.pos((double) (boxLeft + 1), (double) (drawY - 1), 0.0D).tex(0.0D, 0.0D).color(0x80,0x80,0x80,255).endVertex();
tess.draw();
GL11.glEnable(GL11.GL_TEXTURE_2D);
}
this.drawSlot(slotIndex, boxLeft, boxRight, drawY, drawY + curSlotHeight, tess);
}
drawY += curSlotHeight;
}
GL11.glDisable(GL11.GL_DEPTH_TEST);
byte fadeGradientHeight = 4;
if (this.client.world == null)
{
this.overlayBackground();
}
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);
worldr.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
worldr.pos((double) this.left, (double) (this.top + fadeGradientHeight), 0.0D).tex( 0.0D, 1.0D).color(0,0,0,255).endVertex();
worldr.pos((double) this.right, (double) (this.top + fadeGradientHeight), 0.0D).tex( 1.0D, 1.0D).color(0,0,0,255).endVertex();
worldr.pos((double) this.right, (double) this.top, 0.0D).tex( 1.0D, 0.0D).color(0,0,0,255).endVertex();
worldr.pos((double) this.left, (double) this.top, 0.0D).tex( 0.0D, 0.0D).color(0,0,0,255).endVertex();
tess.draw();
worldr.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
worldr.pos((double) this.left, (double) this.bottom, 0.0D).tex( 0.0D, 1.0D).color(0,0,0,255).endVertex();
worldr.pos((double) this.right, (double) this.bottom, 0.0D).tex( 1.0D, 1.0D).color(0,0,0,255).endVertex();
worldr.pos((double) this.right, (double) (this.bottom - fadeGradientHeight), 0.0D).tex( 1.0D, 0.0D).color(0,0,0,0).endVertex();
worldr.pos((double) this.left, (double) (this.bottom - fadeGradientHeight), 0.0D).tex( 0.0D, 0.0D).color(0,0,0,0).endVertex();
tess.draw();
float maxScrollDistance = getMaxScrollDistance();
if (maxScrollDistance > 0)
{
int scrollBarHeight = getScrollBarHeight();
int scrollBarTop = (int) (this.scrollDistance * (getVisibleHeight() - scrollBarHeight) / maxScrollDistance + this.top);
scrollBarTop = Math.max(top, scrollBarTop);
worldr.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
worldr.pos((double) scrollBarXStart, (double) this.bottom, 0.0D).tex( 0.0D, 1.0D).color(0,0,0,255).endVertex();
worldr.pos((double) scrollBarXEnd, (double) this.bottom, 0.0D).tex( 1.0D, 1.0D).color(0,0,0,255).endVertex();
worldr.pos((double) scrollBarXEnd, (double) this.top, 0.0D).tex( 1.0D, 0.0D).color(0,0,0,255).endVertex();
worldr.pos((double) scrollBarXStart, (double) this.top, 0.0D).tex( 0.0D, 0.0D).color(0,0,0,255).endVertex();
tess.draw();
worldr.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
worldr.pos((double) scrollBarXStart, (double) (scrollBarTop + scrollBarHeight), 0.0D).tex( 0.0D, 1.0D).color(0x80,0x80,0x80,255).endVertex();
worldr.pos((double) scrollBarXEnd, (double) (scrollBarTop + scrollBarHeight), 0.0D).tex( 1.0D, 1.0D).color(0x80,0x80,0x80,255).endVertex();
worldr.pos((double) scrollBarXEnd, (double) scrollBarTop, 0.0D).tex( 1.0D, 0.0D).color(0x80,0x80,0x80,255).endVertex();
worldr.pos((double) scrollBarXStart, (double) scrollBarTop, 0.0D).tex( 0.0D, 0.0D).color(0x80,0x80,0x80,255).endVertex();
tess.draw();
worldr.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
worldr.pos((double) scrollBarXStart, (double) (scrollBarTop + scrollBarHeight - 1), 0.0D).tex( 0.0D, 1.0D).color(0xC0,0xC0,0xC0,255).endVertex();
worldr.pos((double) (scrollBarXEnd - 1), (double) (scrollBarTop + scrollBarHeight - 1), 0.0D).tex( 1.0D, 1.0D).color(0xC0,0xC0,0xC0,255).endVertex();
worldr.pos((double) (scrollBarXEnd - 1), (double) scrollBarTop, 0.0D).tex( 1.0D, 0.0D).color(0xC0,0xC0,0xC0,255).endVertex();
worldr.pos((double) scrollBarXStart, (double) scrollBarTop, 0.0D).tex( 0.0D, 0.0D).color(0xC0,0xC0,0xC0,255).endVertex();
tess.draw();
}
this.drawForeground(mouseX, mouseY);
GL11.glEnable(GL11.GL_TEXTURE_2D);
GL11.glShadeModel(GL11.GL_FLAT);
GL11.glEnable(GL11.GL_ALPHA_TEST);
GL11.glDisable(GL11.GL_BLEND);
}
public void overlayBackground()
{
this.client.renderEngine.bindTexture(Resources.GUI_WINDOW);
GL11.glColor4f(0.6F, 0.6F, 0.6F, 1.0F);
Gui.drawModalRectWithCustomSizedTexture(left - 10, top - slotHeight, 0, 0, listWidth + 20, slotHeight, 220, 160);
Gui.drawModalRectWithCustomSizedTexture(left - 10, top + listHeight, 0, listHeight + slotHeight, listWidth + 20, slotHeight, 220, 160);
}
protected void drawGradientRect(int par1, int par2, int par3, int par4, int par5, int par6)
{
int f = (par5 >> 24 & 255);
float f1 = (float)(par5 >> 16 & 255) / 255.0F;
float f2 = (float)(par5 >> 8 & 255) / 255.0F;
float f3 = (float)(par5 & 255) / 255.0F;
int f4 = (par6 >> 24 & 255);
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.getInstance();
BufferBuilder buffer = tessellator.getBuffer();
buffer.begin(GL11.GL_QUADS, DefaultVertexFormats.POSITION_COLOR); //POSITION_TEX_COLOR?
buffer.pos((double)par3, (double)par2, 0.0D).color(f1, f2, f3, f).endVertex();
buffer.pos((double)par1, (double)par2, 0.0D).color(f1, f2, f3, f).endVertex();
buffer.pos((double)par1, (double)par4, 0.0D).color(f5, f6, f7, f4).endVertex();
buffer.pos((double)par3, (double)par4, 0.0D).color(f5, f6, f7, f4).endVertex();
tessellator.draw();
GL11.glShadeModel(GL11.GL_FLAT);
GL11.glDisable(GL11.GL_BLEND);
GL11.glEnable(GL11.GL_ALPHA_TEST);
GL11.glEnable(GL11.GL_TEXTURE_2D);
}
}
