LiteLoader / LiteLoader · Files

package com.mumfrey.liteloader.client.gui;

import static com.mumfrey.liteloader.gl.GL.*;
import static com.mumfrey.liteloader.gl.GLClippingPlanes.*;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.resources.I18n;

import com.mumfrey.liteloader.LiteMod;
import com.mumfrey.liteloader.modconfig.ConfigPanel;
import com.mumfrey.liteloader.modconfig.ConfigPanelHost;

/**
 * Config panel container, this handles drawing the configuration panel chrome and also hosts the
 * configuration panels themselves to support scrolling and stuff
 *
 * @author Adam Mummery-Smith
 */
class GuiPanelConfigContainer extends GuiPanel implements ConfigPanelHost
{
	/**
	 * Panel we are hosting
	 */
	private ConfigPanel panel;
	
	/**
	 * Mod being configured, the panel may want a reference to it
	 */
	private LiteMod mod;
	
	/**
	 * Scroll bar for the panel
	 */
	GuiSimpleScrollBar scrollBar = new GuiSimpleScrollBar();
	
	/**
	 * Panel's internal height (for scrolling)
	 */
	private int totalHeight = -1;
	
	/**
	 * @param minecraft
	 * @param panel
	 * @param mod
	 */
	GuiPanelConfigContainer(Minecraft minecraft, ConfigPanel panel, LiteMod mod)
	{
		super(minecraft);
		
		this.panel = panel;
		this.mod   = mod;
	}

	/**
	 * 
	 */
	String getPanelTitle()
	{
		String panelTitle = this.panel.getPanelTitle();
		return panelTitle != null ? panelTitle : I18n.format("gui.settings.title", this.mod.getName());
	}

	/* (non-Javadoc)
	 * @see com.mumfrey.liteloader.modconfig.ConfigPanelHost#getMod()
	 */
	@SuppressWarnings("unchecked")
	@Override
	public <ModClass extends LiteMod> ModClass getMod()
	{
		return (ModClass)this.mod;
	}

	/* (non-Javadoc)
	 * @see com.mumfrey.liteloader.modconfig.ConfigPanelHost#getWidth()
	 */
	@Override
	public int getWidth()
	{
		return this.innerWidth;
	}

	/* (non-Javadoc)
	 * @see com.mumfrey.liteloader.modconfig.ConfigPanelHost#getHeight()
	 */
	@Override
	public int getHeight()
	{
		return this.innerHeight;
	}
	
	/**
	 * Callback from parent screen when window is resized
	 * 
	 * @param width
	 * @param height
	 */
	@Override
	void setSize(int width, int height)
	{
		super.setSize(width, height);
		
		this.panel.onPanelResize(this);
		this.controls.add(new GuiButton(0, this.width - 99 - MARGIN, this.height - BOTTOM + 9, 100, 20, I18n.format("gui.saveandclose")));
	}
	
	/**
	 * Callback from parent screen when panel is displayed
	 */
	@Override
	void onShown()
	{
		try
		{
			this.panel.onPanelShown(this);
		}
		catch (Exception ex)
		{
			ex.printStackTrace();
		}
	}
	
	/**
	 * Callback from parent screen when panel is hidden
	 */
	@Override
	void onHidden()
	{
		try
		{
			this.panel.onPanelHidden();
		}
		catch (Exception ex)
		{
			ex.printStackTrace();
		}
	}
	
	/**
	 * Callback from parent screen every tick
	 */
	@Override
	void onTick()
	{
		this.panel.onTick(this);
	}
	
	/**
	 * Draw the panel and chrome
	 * 
	 * @param mouseX
	 * @param mouseY
	 * @param partialTicks
	 */
	@Override
	void draw(int mouseX, int mouseY, float partialTicks)
	{
		// Scroll position
		this.innerTop = TOP - this.scrollBar.getValue();
	
		// Draw panel title
		this.mc.fontRendererObj.drawString(this.getPanelTitle(), MARGIN, TOP - 14, 0xFFFFFFFF);
		
		// Draw top and bottom horizontal bars
		drawRect(MARGIN, TOP - 4, this.width - MARGIN, TOP - 3, 0xFF999999);
		drawRect(MARGIN, this.height - BOTTOM + 2, this.width - MARGIN, this.height - BOTTOM + 3, 0xFF999999);

		// Clip rect
		glEnableClipping(MARGIN, this.width - MARGIN - 6, TOP, this.height - BOTTOM);
		
		// Offset by scroll
		glPushMatrix();
		glTranslatef(MARGIN, this.innerTop, 0.0F);
		
		// Draw panel contents
		this.panel.drawPanel(this, mouseX - MARGIN - (this.mouseOverPanel(mouseX, mouseY) ? 0 : 99999), mouseY - this.innerTop, partialTicks);
		glClear(GL_DEPTH_BUFFER_BIT);
		
		// Disable clip rect
		glDisableClipping();
		
		// Restore transform
		glPopMatrix();
		
		// Get total scroll height from panel
		this.totalHeight = Math.max(-1, this.panel.getContentHeight());
		
		// Update and draw scroll bar
		this.scrollBar.setMaxValue(this.totalHeight - this.innerHeight);
		this.scrollBar.drawScrollBar(mouseX, mouseY, partialTicks, this.width - MARGIN - 5, TOP, 5, this.innerHeight, Math.max(this.innerHeight, this.totalHeight));
		
		// Draw other buttons
		super.draw(mouseX, mouseY, partialTicks);
	}

	/**
	 * @param control
	 */
	@Override
	void actionPerformed(GuiButton control)
	{
		if (control.id == 0) this.close();
	}

	/**
	 * @param mouseWheelDelta
	 */
	@Override
	void mouseWheelScrolled(int mouseWheelDelta)
	{
		this.scrollBar.offsetValue(-mouseWheelDelta / 8);
	}

	/**
	 * @param mouseX
	 * @param mouseY
	 * @param mouseButton
	 */
	@Override
	void mousePressed(int mouseX, int mouseY, int mouseButton)
	{
		if (mouseButton == 0)
		{
			if (this.scrollBar.wasMouseOver())
				this.scrollBar.setDragging(true);
		}
		
		super.mousePressed(mouseX, mouseY, mouseButton);
		
		if (this.mouseOverPanel(mouseX, mouseY))
		{
			this.panel.mousePressed(this, mouseX - MARGIN, mouseY - this.innerTop, mouseButton);
		}
	}
	
	/**
	 * @param mouseX
	 * @param mouseY
	 * @param mouseButton
	 */
	@Override
	void mouseReleased(int mouseX, int mouseY, int mouseButton)
	{
		if (mouseButton == 0)
		{
			this.scrollBar.setDragging(false);
		}
		
		this.panel.mouseReleased(this, mouseX - MARGIN, mouseY - this.innerTop, mouseButton);
	}
	
	/**
	 * @param mouseX
	 * @param mouseY
	 */
	@Override
	void mouseMoved(int mouseX, int mouseY)
	{
		this.panel.mouseMoved(this, mouseX - MARGIN, mouseY - this.innerTop);
	}
	
	/**
	 * @param keyChar
	 * @param keyCode
	 */
	@Override
	void keyPressed(char keyChar, int keyCode)
	{
		this.panel.keyPressed(this, keyChar, keyCode);
	}
}