graphconfig.pas

一個可載入圖型編輯文字程式 可繪圖輸入文字等...功能,轉成2進製圖片

unit GraphConfig;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, Mask, ToolEdit, VCap, RXSpin;

type
  TFGraphConfig = class(TForm)
    Label1: TLabel;
    GroupBox2: TGroupBox;
    GroupBox1: TGroupBox;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label6: TLabel;
    Label5: TLabel;
    cbWantPreview: TCheckBox;
    cbWantCapture: TCheckBox;
    cbWantBitmaps: TCheckBox;
    cbWantDVAudio: TCheckBox;
    cbDoPreallocCaptureFile: TCheckBox;
    cbUseTempFile: TCheckBox;
    cbVSources: TComboBox;
    cbASources: TComboBox;
    cbVComps: TComboBox;
    cbAComps: TComboBox;
    cbWantAudio: TCheckBox;
    cbVComp: TCheckBox;
    cbAComp: TCheckBox;
    cbDVResolution: TComboBox;
    cbPixelFormat: TComboBox;
    feCaptureFile: TFilenameEdit;
    feTempFile: TFilenameEdit;
    Button1: TButton;
    Button2: TButton;
    sePreallocSize: TRxSpinEdit;
    Label7: TLabel;
    Label8: TLabel;
    cbWantAudioPreview: TCheckBox;
    procedure cbWantPreviewClick(Sender: TObject);
    procedure cbWantAudioClick(Sender: TObject);
    procedure cbWantCaptureClick(Sender: TObject);
    procedure cbUseTempFileClick(Sender: TObject);
    procedure cbVCompClick(Sender: TObject);
    procedure cbACompClick(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure cbDoPreallocCaptureFileClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

function EditGraphConfig(config: TGraphConfig): boolean;

implementation

{$R *.DFM}

function EditGraphConfig(config: TGraphConfig): boolean;
var
  i: integer;
begin
  with TFGraphConfig.Create(Application) do
  try
    cbWantPreview.Checked:= config.WantPreview;
    cbWantCapture.Checked:= config.WantCapture;
    cbWantBitmaps.Checked:= config.WantBitmaps;
    cbWantDVAudio.Checked:= config.WantDVAudio;
    cbDoPreallocCaptureFile.Checked:= config.DoPreallocFile;
    cbUseTempFile.Checked:= config.UseTempFile;
    cbWantAudio.Checked:= config.WantAudio;
    cbWantAudioPreview.Checked:= config.WantAudioPreview;
    cbVComp.Checked:= true;
    cbAComp.Checked:= true;
    feCaptureFile.FileName:= config.CaptureFileName;
    feTempFile.FileName:= config.TempCaptureFileName;
    cbDVResolution.ItemIndex:= integer(config.DVResolution);
    cbPixelFormat.ItemIndex:= integer(config.PixelFormat);
    sePreallocSize.AsInteger:= config.PreallocFileSize;

    for i:= 0 to cbVSources.Items.Count-1 do
      if cbVSources.Items[i]=config.VCapSource then begin
        cbVSources.ItemIndex:= i;
        break;
      end;
    for i:= 0 to cbASources.Items.Count-1 do
      if cbASources.Items[i]=config.ACapSource then begin
        cbASources.ItemIndex:= i;
        break;
      end;
    for i:= 0 to cbVComps.Items.Count-1 do
      if cbVComps.Items[i]=config.VComp then begin
        cbVComps.ItemIndex:= i;
        break;
      end;
    for i:= 0 to cbAComps.Items.Count-1 do
      if cbAComps.Items[i]=config.AComp then begin
        cbAComps.ItemIndex:= i;
        break;
      end;

    cbVComp.Checked:= cbVComps.ItemIndex>=0;
    cbAComp.Checked:= cbAComps.ItemIndex>=0;

    cbWantPreviewClick(nil);
    cbWantAudioClick(nil);
    cbWantCaptureClick(nil);
    cbUseTempFileClick(nil);
    cbVCompClick(nil);
    cbACompClick(nil);
    cbDoPreallocCaptureFileClick(nil);

    Result:= ShowModal=mrOk;
    if Result then begin
      config.Clear;
      config.WantPreview:= cbWantPreview.Checked;
      config.WantCapture:= cbWantCapture.Checked;
      config.WantBitmaps:= cbWantBitmaps.Checked;
      config.WantDVAudio:= cbWantDVAudio.Checked;
      config.DoPreallocFile:= cbDoPreallocCaptureFile.Checked;
      config.UseTempFile:= cbUseTempFile.Checked;
      config.WantAudio:= cbWantAudio.Checked;
      config.WantAudioPreview:= cbWantAudioPreview.Checked;

      config.PreallocFileSize:= sePreallocSize.AsInteger;
      config.CaptureFileName:= feCaptureFile.FileName;
      config.TempCaptureFileName:= feTempFile.FileName;
      if cbDVResolution.ItemIndex>=0 then
        config.DVResolution:= TDVResolution(cbDVResolution.ItemIndex);
      if cbPixelFormat.ItemIndex>=0 then
        config.PixelFormat:= TPixelFormat(cbPixelFormat.ItemIndex);

      config.VCapSource:= cbVSources.Text;
      config.ACapSource:= cbASources.Text;
      if cbVComp.Checked then config.VComp:= cbVComps.Text;
      if cbAComp.Checked then config.AComp:= cbAComps.Text;
      config.VCompState:= '';
    end;
  finally
    Free;
  end;
end;

procedure TFGraphConfig.cbWantPreviewClick(Sender: TObject);
begin
  cbWantBitmaps.Enabled:= cbWantPreview.Checked;
  cbWantAudioPreview.Enabled:= cbWantPreview.Checked;
end;

procedure TFGraphConfig.cbWantAudioClick(Sender: TObject);
begin
  cbASources.Enabled:= cbWantAudio.Checked;
  cbAComp.Enabled:= cbWantCapture.Checked and cbWantAudio.Checked;
  cbAComps.Enabled:= cbWantCapture.Checked and cbWantAudio.Checked;
end;

procedure TFGraphConfig.cbWantCaptureClick(Sender: TObject);
begin
  feCaptureFile.Enabled:= cbWantCapture.Checked;
  cbDoPreallocCaptureFile.Enabled:= cbWantCapture.Checked;
  cbUseTempFile.Enabled:= cbWantCapture.Checked;
  cbVComps.Enabled:= cbWantCapture.Checked;
  cbVComp.Enabled:= cbWantCapture.Checked;
  cbAComps.Enabled:= cbWantCapture.Checked;
  cbAComp.Enabled:= cbWantCapture.Checked;
end;

procedure TFGraphConfig.cbUseTempFileClick(Sender: TObject);
begin
  feTempFile.Enabled:= cbUseTempFile.Checked;
end;

procedure TFGraphConfig.cbVCompClick(Sender: TObject);
begin
  cbVComps.Enabled:= cbWantCapture.Checked and cbVComp.Checked;
end;

procedure TFGraphConfig.cbACompClick(Sender: TObject);
begin
  cbAComps.Enabled:= cbWantCapture.Checked and cbWantAudio.Checked and cbAComp.Checked;
end;

procedure TFGraphConfig.FormCreate(Sender: TObject);
var
  s: TStringList;
begin
  s:= GetVideoDevicesList;
  try
    cbVSources.Items.Assign(s);
  finally
    s.Free;
  end;

  s:= GetAudioDevicesList;
  try
    cbASources.Items.Assign(s);
  finally
    s.Free;
  end;

  s:= GetVideoCompressorsList;
  try
    cbVComps.Items.Assign(s);
  finally
    s.Free;
  end;

  s:= GetAudioCompressorsList;
  try
    cbAComps.Items.Assign(s);
  finally
    s.Free;
  end;
end;

procedure TFGraphConfig.cbDoPreallocCaptureFileClick(Sender: TObject);
begin
  sePreallocSize.Enabled:= cbDoPreallocCaptureFile.Checked;
end;

end.