    001    package net.minecraft.src;
    002
    003    import cpw.mods.fml.common.Side;
    004    import cpw.mods.fml.common.asm.SideOnly;
    005    import net.minecraft.client.Minecraft;
    006    import org.lwjgl.opengl.GL11;
    007
    008    @SideOnly(Side.CLIENT)
    009    public class GuiButton extends Gui
    010    {
    011        /** Button width in pixels */
    012        protected int width;
    013
    014        /** Button height in pixels */
    015        protected int height;
    016
    017        /** The x position of this control. */
    018        public int xPosition;
    019
    020        /** The y position of this control. */
    021        public int yPosition;
    022
    023        /** The string displayed on this control. */
    024        public String displayString;
    025
    026        /** ID for this control. */
    027        public int id;
    028
    029        /** True if this control is enabled, false to disable. */
    030        public boolean enabled;
    031
    032        /** Hides the button completely if false. */
    033        public boolean drawButton;
    034
    035        public GuiButton(int par1, int par2, int par3, String par4Str)
    036        {
    037            this(par1, par2, par3, 200, 20, par4Str);
    038        }
    039
    040        public GuiButton(int par1, int par2, int par3, int par4, int par5, String par6Str)
    041        {
    042            this.width = 200;
    043            this.height = 20;
    044            this.enabled = true;
    045            this.drawButton = true;
    046            this.id = par1;
    047            this.xPosition = par2;
    048            this.yPosition = par3;
    049            this.width = par4;
    050            this.height = par5;
    051            this.displayString = par6Str;
    052        }
    053
    054        /**
    055         * Returns 0 if the button is disabled, 1 if the mouse is NOT hovering over this button and 2 if it IS hovering over
    056         * this button.
    057         */
    058        protected int getHoverState(boolean par1)
    059        {
    060            byte var2 = 1;
    061
    062            if (!this.enabled)
    063            {
    064                var2 = 0;
    065            }
    066            else if (par1)
    067            {
    068                var2 = 2;
    069            }
    070
    071            return var2;
    072        }
    073
    074        /**
    075         * Draws this button to the screen.
    076         */
    077        public void drawButton(Minecraft par1Minecraft, int par2, int par3)
    078        {
    079            if (this.drawButton)
    080            {
    081                FontRenderer var4 = par1Minecraft.fontRenderer;
    082                GL11.glBindTexture(GL11.GL_TEXTURE_2D, par1Minecraft.renderEngine.getTexture("/gui/gui.png"));
    083                GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
    084                boolean var5 = par2 >= this.xPosition && par3 >= this.yPosition && par2 < this.xPosition + this.width && par3 < this.yPosition + this.height;
    085                int var6 = this.getHoverState(var5);
    086                this.drawTexturedModalRect(this.xPosition, this.yPosition, 0, 46 + var6 * 20, this.width / 2, this.height);
    087                this.drawTexturedModalRect(this.xPosition + this.width / 2, this.yPosition, 200 - this.width / 2, 46 + var6 * 20, this.width / 2, this.height);
    088                this.mouseDragged(par1Minecraft, par2, par3);
    089                int var7 = 14737632;
    090
    091                if (!this.enabled)
    092                {
    093                    var7 = -6250336;
    094                }
    095                else if (var5)
    096                {
    097                    var7 = 16777120;
    098                }
    099
    100                this.drawCenteredString(var4, this.displayString, this.xPosition + this.width / 2, this.yPosition + (this.height - 8) / 2, var7);
    101            }
    102        }
    103
    104        /**
    105         * Fired when the mouse button is dragged. Equivalent of MouseListener.mouseDragged(MouseEvent e).
    106         */
    107        protected void mouseDragged(Minecraft par1Minecraft, int par2, int par3) {}
    108
    109        /**
    110         * Fired when the mouse button is released. Equivalent of MouseListener.mouseReleased(MouseEvent e).
    111         */
    112        public void mouseReleased(int par1, int par2) {}
    113
    114        /**
    115         * Returns true if the mouse has been pressed on this control. Equivalent of MouseListener.mousePressed(MouseEvent
    116         * e).
    117         */
    118        public boolean mousePressed(Minecraft par1Minecraft, int par2, int par3)
    119        {
    120            return this.enabled && this.drawButton && par2 >= this.xPosition && par3 >= this.yPosition && par2 < this.xPosition + this.width && par3 < this.yPosition + this.height;
    121        }
    122    }