mirror of
https://github.com/ClassiCube/ClassiCube.git
synced 2025-10-14 00:57:18 -04:00
66 lines
1.9 KiB
C#
66 lines
1.9 KiB
C#
using System;
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using OpenTK.Input;
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namespace ClassicalSharp {
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public partial class BlockSelectScreen : Screen {
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const int scrollbarWidth = 10;
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static FastColour scrollCol = new FastColour( 10, 10, 10, 220 );
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static FastColour scrollUsedCol = new FastColour( 100, 100, 100, 220 );
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void DrawScrollbar() {
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graphicsApi.Draw2DQuad( TableX, TableY, scrollbarWidth,
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TableHeight, scrollCol );
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float scale = TableHeight / (float)rows;
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int yOffset = (int)Math.Ceiling( scrollY * scale );
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int height = (int)Math.Ceiling( maxRows * scale );
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if( yOffset + height > TableHeight )
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height = TableHeight - yOffset;
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graphicsApi.Draw2DQuad( TableX, TableY + yOffset, scrollbarWidth,
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height, scrollUsedCol );
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}
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public override bool HandlesMouseScroll( int delta ) {
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bool bounds = Contains( TableX, TableY, TableWidth, TableHeight,
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game.Mouse.X, game.Mouse.Y );
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if( !bounds ) return false;
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int rowY = (selIndex / blocksPerRow) - scrollY;
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scrollY -= delta;
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ClampScrollY();
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if( selIndex == - 1 ) return true;
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selIndex = scrollY * blocksPerRow + (selIndex % blocksPerRow);
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for( int row = 0; row < rowY; row++ ) {
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if( selIndex + blocksPerRow >= blocksTable.Length ) break;
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selIndex += blocksPerRow;
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}
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MoveCursorToSelected();
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RecreateBlockInfoTexture();
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return true;
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}
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int scrollY;
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void ClampScrollY() {
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if( scrollY >= rows - maxRows )
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scrollY = rows - maxRows;
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if( scrollY < 0 )
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scrollY = 0;
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}
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void ScrollbarClick( int mouseY ) {
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mouseY -= TableY;
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float scale = TableHeight / (float)rows;
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scrollY = (int)(mouseY / scale);
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ClampScrollY();
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}
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bool draggingMouse = false;
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public override bool HandlesMouseUp( int mouseX, int mouseY, MouseButton button ) {
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draggingMouse = false;
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return true;
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}
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}
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}
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