152 lines
6.3 KiB
Java
152 lines
6.3 KiB
Java
/**
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* This file is part of ComputerCraft - http://www.computercraft.info
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* Copyright Daniel Ratcliffe, 2011-2016. Do not distribute without permission.
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* Send enquiries to dratcliffe@gmail.com
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*/
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package dan200.computercraft.client.gui;
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import dan200.computercraft.core.terminal.TextBuffer;
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import dan200.computercraft.shared.util.Colour;
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import net.minecraft.client.renderer.Tessellator;
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import net.minecraft.client.renderer.VertexBuffer;
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import net.minecraft.client.renderer.texture.TextureManager;
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import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
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import net.minecraft.util.ResourceLocation;
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import org.lwjgl.opengl.GL11;
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public class FixedWidthFontRenderer
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{
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public static ResourceLocation font = new ResourceLocation( "computercraft", "textures/gui/termFont.png" );
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public static ResourceLocation background = new ResourceLocation( "computercraft", "textures/gui/termBackground.png" );
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public static int FONT_HEIGHT = 9;
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public static int FONT_WIDTH = 6;
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private TextureManager m_textureManager;
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public FixedWidthFontRenderer( TextureManager textureManager )
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{
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m_textureManager = textureManager;
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}
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private void drawChar( VertexBuffer renderer, double x, double y, int index, int color )
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{
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int column = index % 16;
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int row = index / 16;
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Colour colour = Colour.values()[ 15 - color ];
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renderer.pos( x, y + FONT_HEIGHT, 0.0 ).tex( (double) (column * FONT_WIDTH) / 256.0, (double) ((row + 1) * FONT_HEIGHT) / 256.0 ).color( colour.getR(), colour.getG(), colour.getB(), 1.0f ).endVertex();
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renderer.pos( x + FONT_WIDTH, y + FONT_HEIGHT, 0.0 ).tex( (double) ((column + 1) * FONT_WIDTH) / 256.0, (double) ((row + 1) * FONT_HEIGHT) / 256.0 ).color( colour.getR(), colour.getG(), colour.getB(), 1.0f ).endVertex();
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renderer.pos( x + FONT_WIDTH, y, 0.0 ).tex( (double) ((column + 1) * FONT_WIDTH) / 256.0, (double) (row * FONT_HEIGHT) / 256.0 ).color( colour.getR(), colour.getG(), colour.getB(), 1.0f ).endVertex();
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renderer.pos( x, y, 0.0 ).tex( (double) (column * FONT_WIDTH) / 256.0, (double) (row * FONT_HEIGHT ) / 256.0 ).color( colour.getR(), colour.getG(), colour.getB(), 1.0f ).endVertex();
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}
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private void drawQuad( VertexBuffer renderer, double x, double y, int color, double width )
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{
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Colour colour = Colour.values()[ 15 - color ];
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renderer.pos( x, y + FONT_HEIGHT, 0.0 ).tex( 0.0, 1.0 ).color( colour.getR(), colour.getG(), colour.getB(), 1.0f ).endVertex();
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renderer.pos( x + width, y + FONT_HEIGHT, 0.0 ).tex( 1.0, 1.0 ).color( colour.getR(), colour.getG(), colour.getB(), 1.0f ).endVertex();
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renderer.pos( x + width, y, 0.0 ).tex( 1.0, 0.0 ).color( colour.getR(), colour.getG(), colour.getB(), 1.0f ).endVertex();
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renderer.pos( x, y, 0.0 ).tex( 0.0, 0.0 ).color( colour.getR(), colour.getG(), colour.getB(), 1.0f ).endVertex();
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}
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private boolean isGreyScale( int colour )
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{
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return (colour == 0 || colour == 15 || colour == 7 || colour == 8);
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}
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public void drawStringBackgroundPart( int x, int y, TextBuffer backgroundColour, double leftMarginSize, double rightMarginSize, boolean greyScale )
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{
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// Draw the quads
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Tessellator tessellator = Tessellator.getInstance();
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VertexBuffer renderer = tessellator.getBuffer();
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renderer.begin( GL11.GL_QUADS, DefaultVertexFormats.POSITION_TEX_COLOR );
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if( leftMarginSize > 0.0 )
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{
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int colour1 = "0123456789abcdef".indexOf( backgroundColour.charAt( 0 ) );
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if( colour1 < 0 || (greyScale && !isGreyScale(colour1)) )
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{
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colour1 = 15;
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}
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drawQuad( renderer, x - leftMarginSize, y, colour1, leftMarginSize );
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}
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if( rightMarginSize > 0.0 )
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{
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int colour2 = "0123456789abcdef".indexOf( backgroundColour.charAt( backgroundColour.length() - 1 ) );
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if( colour2 < 0 || (greyScale && !isGreyScale(colour2)) )
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{
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colour2 = 15;
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}
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drawQuad( renderer, x + backgroundColour.length() * FONT_WIDTH, y, colour2, rightMarginSize );
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}
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for( int i = 0; i < backgroundColour.length(); i++ )
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{
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int colour = "0123456789abcdef".indexOf( backgroundColour.charAt( i ) );
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if( colour < 0 || ( greyScale && !isGreyScale( colour ) ) )
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{
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colour = 15;
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}
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drawQuad( renderer, x + i * FONT_WIDTH, y, colour, FONT_WIDTH );
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}
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tessellator.draw();
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}
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public void drawStringTextPart( int x, int y, TextBuffer s, TextBuffer textColour, boolean greyScale )
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{
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// Draw the quads
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Tessellator tessellator = Tessellator.getInstance();
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VertexBuffer renderer = tessellator.getBuffer();
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renderer.begin( GL11.GL_QUADS, DefaultVertexFormats.POSITION_TEX_COLOR );
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for( int i = 0; i < s.length(); i++ )
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{
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// Switch colour
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int colour = "0123456789abcdef".indexOf( textColour.charAt( i ) );
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if( colour < 0 || ( greyScale && !isGreyScale( colour ) ) )
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{
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colour = 0;
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}
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// Draw char
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int index = (int)s.charAt( i );
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if( index < 0 || index > 255 )
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{
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index = (int)'?';
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}
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drawChar( renderer, x + i * FONT_WIDTH, y, index, colour );
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}
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tessellator.draw();
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}
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public void drawString( TextBuffer s, int x, int y, TextBuffer textColour, TextBuffer backgroundColour, double leftMarginSize, double rightMarginSize, boolean greyScale )
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{
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// Draw background
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if( backgroundColour != null )
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{
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// Bind the background texture
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m_textureManager.bindTexture( background );
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// Draw the quads
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drawStringBackgroundPart( x, y, backgroundColour, leftMarginSize, rightMarginSize, greyScale );
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}
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// Draw text
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if( s != null && textColour != null )
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{
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// Bind the font texture
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m_textureManager.bindTexture( font );
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// Draw the quads
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drawStringTextPart( x, y, s, textColour, greyScale );
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}
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}
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public int getStringWidth(String s)
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{
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if(s == null)
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{
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return 0;
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}
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return s.length() * FONT_WIDTH;
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}
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}
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