001    package net.minecraft.src;
002    
003    import cpw.mods.fml.common.Side;
004    import cpw.mods.fml.common.asm.SideOnly;
005    import org.lwjgl.input.Keyboard;
006    import org.lwjgl.opengl.GL11;
007    
008    @SideOnly(Side.CLIENT)
009    public class GuiEditSign extends GuiScreen
010    {
011        /**
012         * This String is just a local copy of the characters allowed in text rendering of minecraft.
013         */
014        private static final String allowedCharacters = ChatAllowedCharacters.allowedCharacters;
015    
016        /** The title string that is displayed in the top-center of the screen. */
017        protected String screenTitle = "Edit sign message:";
018    
019        /** Reference to the sign object. */
020        private TileEntitySign entitySign;
021    
022        /** Counts the number of screen updates. */
023        private int updateCounter;
024    
025        /** The number of the line that is being edited. */
026        private int editLine = 0;
027    
028        public GuiEditSign(TileEntitySign par1TileEntitySign)
029        {
030            this.entitySign = par1TileEntitySign;
031        }
032    
033        /**
034         * Adds the buttons (and other controls) to the screen in question.
035         */
036        public void initGui()
037        {
038            this.controlList.clear();
039            Keyboard.enableRepeatEvents(true);
040            this.controlList.add(new GuiButton(0, this.width / 2 - 100, this.height / 4 + 120, "Done"));
041            this.entitySign.setEditable(false);
042        }
043    
044        /**
045         * Called when the screen is unloaded. Used to disable keyboard repeat events
046         */
047        public void onGuiClosed()
048        {
049            Keyboard.enableRepeatEvents(false);
050            this.mc.getSendQueue().addToSendQueue(new Packet130UpdateSign(this.entitySign.xCoord, this.entitySign.yCoord, this.entitySign.zCoord, this.entitySign.signText));
051            this.entitySign.setEditable(true);
052        }
053    
054        /**
055         * Called from the main game loop to update the screen.
056         */
057        public void updateScreen()
058        {
059            ++this.updateCounter;
060        }
061    
062        /**
063         * Fired when a control is clicked. This is the equivalent of ActionListener.actionPerformed(ActionEvent e).
064         */
065        protected void actionPerformed(GuiButton par1GuiButton)
066        {
067            if (par1GuiButton.enabled)
068            {
069                if (par1GuiButton.id == 0)
070                {
071                    this.entitySign.onInventoryChanged();
072                    this.mc.displayGuiScreen((GuiScreen)null);
073                }
074            }
075        }
076    
077        /**
078         * Fired when a key is typed. This is the equivalent of KeyListener.keyTyped(KeyEvent e).
079         */
080        protected void keyTyped(char par1, int par2)
081        {
082            if (par2 == 200)
083            {
084                this.editLine = this.editLine - 1 & 3;
085            }
086    
087            if (par2 == 208 || par2 == 28)
088            {
089                this.editLine = this.editLine + 1 & 3;
090            }
091    
092            if (par2 == 14 && this.entitySign.signText[this.editLine].length() > 0)
093            {
094                this.entitySign.signText[this.editLine] = this.entitySign.signText[this.editLine].substring(0, this.entitySign.signText[this.editLine].length() - 1);
095            }
096    
097            if (allowedCharacters.indexOf(par1) >= 0 && this.entitySign.signText[this.editLine].length() < 15)
098            {
099                this.entitySign.signText[this.editLine] = this.entitySign.signText[this.editLine] + par1;
100            }
101        }
102    
103        /**
104         * Draws the screen and all the components in it.
105         */
106        public void drawScreen(int par1, int par2, float par3)
107        {
108            this.drawDefaultBackground();
109            this.drawCenteredString(this.fontRenderer, this.screenTitle, this.width / 2, 40, 16777215);
110            GL11.glPushMatrix();
111            GL11.glTranslatef((float)(this.width / 2), 0.0F, 50.0F);
112            float var4 = 93.75F;
113            GL11.glScalef(-var4, -var4, -var4);
114            GL11.glRotatef(180.0F, 0.0F, 1.0F, 0.0F);
115            Block var5 = this.entitySign.getBlockType();
116    
117            if (var5 == Block.signPost)
118            {
119                float var6 = (float)(this.entitySign.getBlockMetadata() * 360) / 16.0F;
120                GL11.glRotatef(var6, 0.0F, 1.0F, 0.0F);
121                GL11.glTranslatef(0.0F, -1.0625F, 0.0F);
122            }
123            else
124            {
125                int var8 = this.entitySign.getBlockMetadata();
126                float var7 = 0.0F;
127    
128                if (var8 == 2)
129                {
130                    var7 = 180.0F;
131                }
132    
133                if (var8 == 4)
134                {
135                    var7 = 90.0F;
136                }
137    
138                if (var8 == 5)
139                {
140                    var7 = -90.0F;
141                }
142    
143                GL11.glRotatef(var7, 0.0F, 1.0F, 0.0F);
144                GL11.glTranslatef(0.0F, -1.0625F, 0.0F);
145            }
146    
147            if (this.updateCounter / 6 % 2 == 0)
148            {
149                this.entitySign.lineBeingEdited = this.editLine;
150            }
151    
152            TileEntityRenderer.instance.renderTileEntityAt(this.entitySign, -0.5D, -0.75D, -0.5D, 0.0F);
153            this.entitySign.lineBeingEdited = -1;
154            GL11.glPopMatrix();
155            super.drawScreen(par1, par2, par3);
156        }
157    }