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Home: Code Repository: Mastering Delphi 5Project CHARTDB
Project StructureCHARTDB.DPRprogram ChartDb; uses Forms, ChartDbF in 'ChartDbF.pas' {Form1}; {$R *.RES} begin Application.CreateForm(TForm1, Form1); Application.Run; end. CHARTDBF.PASunit ChartDbF; interface uses SysUtils, Windows, Messages, Classes, Graphics, Controls, Forms, Dialogs, Grids, DBGrids, DB, DBTables, ExtCtrls, TeEngine, Series, TeeProcs, Chart, DBChart, StdCtrls; type TForm1 = class(TForm) Table1: TTable; DataSource1: TDataSource; DBGrid1: TDBGrid; DBChart1: TDBChart; Series1: TPieSeries; Splitter1: TSplitter; RadioArea: TRadioButton; RadioPopulation: TRadioButton; procedure DataSource1StateChange(Sender: TObject); procedure RadioPopulationClick(Sender: TObject); procedure RadioAreaClick(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form1: TForm1; implementation {$R *.DFM} procedure TForm1.DataSource1StateChange(Sender: TObject); var Title: string; begin case Table1.State of dsBrowse: Title := 'Browse'; dsEdit: Title := 'Edit'; dsInsert: Title := 'Insert'; else Title := 'Other state'; end; Caption := 'Grid Demo - ' + Title; end; procedure TForm1.RadioPopulationClick(Sender: TObject); begin DBChart1.Title.Text [0] := 'Population of Countries'; (DBChart1.Series [0] as TPieSeries). PieValues.ValueSource := 'Population'; end; procedure TForm1.RadioAreaClick(Sender: TObject); begin DBChart1.Title.Text [0] := 'Area of Countries'; (DBChart1.Series [0] as TPieSeries). PieValues.ValueSource := 'Area'; end; end. CHARTDBF.DFMobject Form1: TForm1 Left = 236 Top = 106 Width = 511 Height = 444 ActiveControl = DBGrid1 Caption = 'ChartDB' Color = clBtnFace Font.Charset = DEFAULT_CHARSET Font.Color = clBlack Font.Height = -11 Font.Name = 'MS Sans Serif' Font.Style = [] OldCreateOrder = True PixelsPerInch = 96 TextHeight = 13 object Splitter1: TSplitter Left = 0 Top = 201 Width = 503 Height = 0 Cursor = crVSplit Align = alTop end object DBGrid1: TDBGrid Left = 0 Top = 0 Width = 503 Height = 201 Align = alTop DataSource = DataSource1 TabOrder = 0 TitleFont.Charset = DEFAULT_CHARSET TitleFont.Color = clBlack TitleFont.Height = -11 TitleFont.Name = 'MS Sans Serif' TitleFont.Style = [] Columns = < item Alignment = taRightJustify Color = clBtnShadow Expanded = False FieldName = 'Name' Font.Charset = DEFAULT_CHARSET Font.Color = clWhite Font.Height = -11 Font.Name = 'MS Sans Serif' Font.Style = [fsBold] ReadOnly = True Title.Alignment = taRightJustify Title.Caption = 'Country' Title.Font.Charset = DEFAULT_CHARSET Title.Font.Color = clBlack Title.Font.Height = -11 Title.Font.Name = 'MS Sans Serif' Title.Font.Style = [fsBold] Width = 133 Visible = True end item Expanded = False FieldName = 'Capital' Width = 83 Visible = True end item Expanded = False FieldName = 'Continent' Font.Charset = DEFAULT_CHARSET Font.Color = clBlack Font.Height = -11 Font.Name = 'MS Sans Serif' Font.Style = [fsItalic] PickList.Strings = ( 'Africa' 'Asia' 'Australia' 'Europe' 'North America' 'South America') Width = 95 Visible = True end item Expanded = False FieldName = 'Area' Width = 72 Visible = True end item Expanded = False FieldName = 'Population' Visible = True end> end object DBChart1: TDBChart Left = 0 Top = 201 Width = 503 Height = 216 AllowPanning = pmNone AllowZoom = False AnimatedZoom = True BackWall.Brush.Style = bsClear BackWall.Pen.Visible = False Title.Text.Strings = ( 'Area of Countries') AxisVisible = False BottomAxis.Title.Caption = 'Name' Chart3DPercent = 35 ClipPoints = False Frame.Visible = False LeftAxis.Title.Caption = 'Area' Legend.Visible = False View3DOptions.Elevation = 315 View3DOptions.Orthogonal = False View3DOptions.Rotation = 360 View3DWalls = False Align = alClient TabOrder = 1 object RadioArea: TRadioButton Left = 16 Top = 16 Width = 73 Height = 17 Caption = 'Area' Checked = True TabOrder = 0 TabStop = True OnClick = RadioAreaClick end object RadioPopulation: TRadioButton Left = 16 Top = 34 Width = 73 Height = 17 Caption = 'Population' TabOrder = 1 OnClick = RadioPopulationClick end object Series1: TPieSeries Marks.ArrowLength = 8 Marks.Frame.Visible = False Marks.Visible = True DataSource = Table1 Title = 'Area' XLabelsSource = 'Name' OtherSlice.Style = poBelowPercent OtherSlice.Text = 'Others' OtherSlice.Value = 2 PieValues.DateTime = False PieValues.Name = 'Pie' PieValues.Multiplier = 1 PieValues.Order = loNone PieValues.ValueSource = 'Area' end end object Table1: TTable Active = True DatabaseName = 'DBDEMOS' TableName = 'COUNTRY.DB' Left = 24 Top = 144 end object DataSource1: TDataSource DataSet = Table1 OnStateChange = DataSource1StateChange Left = 80 Top = 144 end end
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