mirror of
https://gitlab.com/freepascal.org/lazarus/lazarus.git
synced 2025-05-05 01:24:18 +02:00
66 lines
1.3 KiB
ObjectPascal
66 lines
1.3 KiB
ObjectPascal
unit Main;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, OpenGLContext, SysUtils, FileUtil, Forms, Controls, Graphics,
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Dialogs, TAGraph, TASeries, TASources, GL, GLU;
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type
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{ TForm1 }
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TForm1 = class(TForm)
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Chart1: TChart;
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Chart1BarSeries1: TBarSeries;
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Chart1LineSeries1: TLineSeries;
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OpenGLControl1: TOpenGLControl;
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RandomChartSource1: TRandomChartSource;
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procedure Chart1AfterPaint(ASender: TChart);
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procedure OpenGLControl1Paint(Sender: TObject);
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end;
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var
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Form1: TForm1;
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implementation
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{$R *.lfm}
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uses
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TADrawUtils, TADrawerOpenGL, TADrawerCanvas;
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procedure TForm1.Chart1AfterPaint(ASender: TChart);
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begin
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OpenGLControl1.Invalidate;
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end;
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procedure TForm1.OpenGLControl1Paint(Sender: TObject);
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var
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d: IChartDrawer;
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begin
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glClearColor(1.0, 1.0, 1.0, 1.0);
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glClear(GL_COLOR_BUFFER_BIT);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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with OpenGLControl1 do
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gluOrtho2D(0, Width, Height, 0);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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d := TOpenGLDrawer.Create;
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d.DoChartColorToFPColor := @ChartColorSysToFPColor;
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Chart1.DisableRedrawing;
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Chart1.Title.Text.Text := 'OpenGL';
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Chart1.Draw(d, Rect(0, 0, OpenGLControl1.Width, OpenGLControl1.Height));
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Chart1.Title.Text.Text := 'Standard';
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Chart1.EnableRedrawing;
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OpenGLControl1.SwapBuffers;
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end;
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end.
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