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Overview
Comment:Read PNG files as well as JPG. Show some basic info of selected image.
Timelines: family | ancestors | trunk
Files: files | file ages | folders
SHA1: 3a643621eb6fa7bc31e9de3c151c673b4f9cd23d
User & Date: tinus 2015-02-03 13:24:59
Context
2015-02-03
13:24
Read PNG files as well as JPG. Show some basic info of selected image. Leaf check-in: 3a643621eb user: tinus tags: trunk
13:24
Implemented several zooming features (keep proportions). Use TWICImage instead of TOleGraphic as fallback. check-in: 1d07ee6f91 user: tinus tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/F_Main.pas. 

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unit F_Main;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.Menus, Vcl.ExtCtrls,
  M_Main;

type
  TfrmMain = class(TForm)
    pnlDesktop: TPanel;
    pbxDesktop: TPaintBox;
    shpMonitor: TShape;
    procedure pbxDesktopPaint(Sender: TObject);
................................................................................
      Shift: TShiftState; X, Y: Integer);
    procedure FormCreate(Sender: TObject);
    procedure pbxDesktopClick(Sender: TObject);
    procedure FormDblClick(Sender: TObject);
  private
    { Private declarations }
    FMonitorShape: array of TShape;

  public
    { Public declarations }
  end;

var
  frmMain: TfrmMain;

implementation

uses
  U_WPImages;

{$R *.dfm}

{ ------------------------------------------------------------------------------------------------ }
procedure TfrmMain.FormCreate(Sender: TObject);
var
  i: integer;
begin
................................................................................
                               MR.Width,
                               MR.Height);
  end;
end;

{ ------------------------------------------------------------------------------------------------ }
procedure TfrmMain.FormDblClick(Sender: TObject);


begin
  modMain.CycleWallpaper;
  pnlDesktop.Invalidate;





















end;

{ ------------------------------------------------------------------------------------------------ }
procedure TfrmMain.pbxDesktopClick(Sender: TObject);
var
  i: Integer;
begin
  // TODO: select desktop in list
  for i := Low(FMonitorShape) to High(FMonitorShape) do begin
    FMonitorShape[i].Pen.Style := psClear;
  end;

end;

{ ------------------------------------------------------------------------------------------------ }
procedure TfrmMain.pbxDesktopPaint(Sender: TObject);
var
  i: integer;
  MonImg: TWPImage;
begin
  pbxDesktop.Canvas.FillRect(pbxDesktop.BoundsRect);
  if Assigned(modMain.Desktop) then
    modMain.Desktop.Draw(pbxDesktop.Canvas, pbxDesktop.BoundsRect);
  for i := 0 to modMain.Monitors.Count - 1 do begin
    MonImg := modMain.Monitors[i];
    if Assigned(MonImg) then begin
      MonImg.Draw(pbxDesktop.Canvas, FMonitorShape[i].BoundsRect);
    end;
  end;
end;

{ ------------------------------------------------------------------------------------------------ }
procedure TfrmMain.shpMonitorMouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
................................................................................
begin
  // TODO: select given monitor in list
  for i := Low(FMonitorShape) to High(FMonitorShape) do begin
    if (Sender = FMonitorShape[i]) and (FMonitorShape[i].Pen.Style = psClear) then begin
      FMonitorShape[i].Pen.Style := psDot;
    end else begin
      FMonitorShape[i].Pen.Style := psClear;



    end;
  end;
end;

end.








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unit F_Main;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.Menus, Vcl.ExtCtrls,
  M_Main, U_WPImages;

type
  TfrmMain = class(TForm)
    pnlDesktop: TPanel;
    pbxDesktop: TPaintBox;
    shpMonitor: TShape;
    procedure pbxDesktopPaint(Sender: TObject);
................................................................................
      Shift: TShiftState; X, Y: Integer);
    procedure FormCreate(Sender: TObject);
    procedure pbxDesktopClick(Sender: TObject);
    procedure FormDblClick(Sender: TObject);
  private
    { Private declarations }
    FMonitorShape: array of TShape;
    procedure ShowImageInfo(const WPImage: TWPImage);
  public
    { Public declarations }
  end;

var
  frmMain: TfrmMain;

implementation




{$R *.dfm}

{ ------------------------------------------------------------------------------------------------ }
procedure TfrmMain.FormCreate(Sender: TObject);
var
  i: integer;
begin
................................................................................
                               MR.Width,
                               MR.Height);
  end;
end;

{ ------------------------------------------------------------------------------------------------ }
procedure TfrmMain.FormDblClick(Sender: TObject);
var
  i: Integer;
begin
  modMain.CycleWallpaper;
  pnlDesktop.Invalidate;

  for i := Low(FMonitorShape) to High(FMonitorShape) do begin
    if FMonitorShape[i].Pen.Style <> psClear then begin
      ShowImageInfo(modMain.Monitors[i]);
      Exit;
    end;
  end;
  ShowImageInfo(modMain.Desktop);
end;

{ ------------------------------------------------------------------------------------------------ }
procedure TfrmMain.ShowImageInfo(const WPImage: TWPImage);
begin
  if Assigned(WPImage) then begin
    Self.Caption := Format('%s (%dx%d) - %s', [ExtractFileName(WPImage.Path),
                                                WPImage.Width,
                                                WPImage.Height,
                                                Application.Title]);
  end else begin
    Self.Caption := Application.Title;
  end;
end;

{ ------------------------------------------------------------------------------------------------ }
procedure TfrmMain.pbxDesktopClick(Sender: TObject);
var
  i: Integer;
begin
  // TODO: select desktop in list
  for i := Low(FMonitorShape) to High(FMonitorShape) do begin
    FMonitorShape[i].Pen.Style := psClear;
  end;
  ShowImageInfo(modMain.Desktop);
end;

{ ------------------------------------------------------------------------------------------------ }
procedure TfrmMain.pbxDesktopPaint(Sender: TObject);
var
  i: integer;
  MonImg: TWPImage;
begin
  pbxDesktop.Canvas.FillRect(pbxDesktop.BoundsRect);
  if Assigned(modMain.Desktop) then
    modMain.Desktop.Draw(pbxDesktop.Canvas, pbxDesktop.BoundsRect, TWPImageZoom.FitLargest);
  for i := 0 to modMain.Monitors.Count - 1 do begin
    MonImg := modMain.Monitors[i];
    if Assigned(MonImg) then begin
      MonImg.Draw(pbxDesktop.Canvas, FMonitorShape[i].BoundsRect, TWPImageZoom.FitSmallest);
    end;
  end;
end;

{ ------------------------------------------------------------------------------------------------ }
procedure TfrmMain.shpMonitorMouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
................................................................................
begin
  // TODO: select given monitor in list
  for i := Low(FMonitorShape) to High(FMonitorShape) do begin
    if (Sender = FMonitorShape[i]) and (FMonitorShape[i].Pen.Style = psClear) then begin
      FMonitorShape[i].Pen.Style := psDot;
    end else begin
      FMonitorShape[i].Pen.Style := psClear;
    end;
    if Sender = FMonitorShape[i] then begin
      ShowImageInfo(modMain.Monitors[i]);
    end;
  end;
end;

end.

Changes to src/M_Main.pas. 

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{ ------------------------------------------------------------------------------------------------ }
procedure TmodMain.DataModuleCreate(Sender: TObject);
var
  i: Integer;
begin
  FDesktop := nil; // TWPImage.Create('C:\MC\MM\Image\Work\Background\composite\Chateau_de_Lassay_2.bmp');
  FFiles := TDirectory.GetFiles('C:\MC\MM\Image\Work\Background\single', '*.jpg', TSearchOption.soAllDirectories);







  SetLength(FFiles, Length(FFiles) + 1);
  FFiles[Length(FFiles) - 1] := 'C:\MC\MM\Image\Work\Background\composite\Chateau_de_Lassay_2.bmp';

  // randomize FFiles
  TArray.Sort<string>(FFiles, TComparer<string>.Construct(function(const Left, Right: string): Integer
                                                          begin
                                                            Result := Random(2) - 1;








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{ ------------------------------------------------------------------------------------------------ }
procedure TmodMain.DataModuleCreate(Sender: TObject);
var
  i: Integer;
begin
  FDesktop := nil; // TWPImage.Create('C:\MC\MM\Image\Work\Background\composite\Chateau_de_Lassay_2.bmp');
  FFiles := TDirectory.GetFiles('C:\MC\MM\Image\Work\Background\single', TSearchOption.soAllDirectories,
            function(const Path: string; const SearchRec: TSearchRec): Boolean
            var
              Ext: string;
            begin
              Ext := ExtractFileExt(SearchRec.Name);
              Result := SameFileName(Ext, '.jpg') or SameFilename(Ext, '.png');
            end);
  SetLength(FFiles, Length(FFiles) + 1);
  FFiles[Length(FFiles) - 1] := 'C:\MC\MM\Image\Work\Background\composite\Chateau_de_Lassay_2.bmp';

  // randomize FFiles
  TArray.Sort<string>(FFiles, TComparer<string>.Construct(function(const Left, Right: string): Integer
                                                          begin
                                                            Result := Random(2) - 1;

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