debugserver: adds new Live View grid that will track values.

The "live view" values are not added to the usual messages list. They
are very handy for tracking short lived debug info like the position
of a mouse cursor, position of a trackbar or scrollbar etc.

2 files changed, 114 insertions, 1 deletions

diff --git a/examples/apps/debugserver/fra_liveview.pas b/examples/apps/debugserver/fra_liveview.pas
new file mode 100644
index 00000000..80820dd5
--- /dev/null
+++ b/examples/apps/debugserver/fra_liveview.pas
@@ -0,0 +1,65 @@
+unit fra_liveview;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  SysUtils, 
+  Classes, 
+  fpg_base, 
+  fpg_main, 
+  fpg_form, 
+  fpg_panel,
+  fpg_grid;
+
+type
+
+  TLiveViewFrame = class(TfpgFrame)
+  private
+    {@VFD_HEAD_BEGIN: fra_liveview}
+    Grid1: TfpgStringGrid;
+    {@VFD_HEAD_END: fra_liveview}
+  public
+    procedure AfterCreate; override;
+  end;
+
+{@VFD_NEWFORM_DECL}
+
+implementation
+
+{@VFD_NEWFORM_IMPL}
+
+procedure TLiveViewFrame.AfterCreate;
+begin
+  {%region 'Auto-generated GUI code' -fold}
+  {@VFD_BODY_BEGIN: fra_liveview}
+  Name := 'fra_liveview';
+  SetPosition(359, 215, 442, 104);
+  WindowTitle := 'fra_liveview';
+  Hint := '';
+
+  Grid1 := TfpgStringGrid.Create(self);
+  with Grid1 do
+  begin
+    Name := 'Grid1';
+    SetPosition(0, 4, 444, 98);
+    Anchors := [anLeft,anRight,anTop,anBottom];
+    BackgroundColor := TfpgColor($80000002);
+    AddColumn('Desc', 100, taLeftJustify);
+    AddColumn('Value', 310, taLeftJustify);
+    FontDesc := '#Grid';
+    HeaderFontDesc := '#GridHeader';
+    Hint := '';
+    RowCount := 5;
+    RowSelect := False;
+    ShowHeader := False;
+    TabOrder := 1;
+  end;
+
+  {@VFD_BODY_END: fra_liveview}
+  {%endregion}
+end;
+
+
+end.
diff --git a/examples/apps/debugserver/frm_main.pas b/examples/apps/debugserver/frm_main.pas
index 12584f41..89543763 100644
--- a/examples/apps/debugserver/frm_main.pas
+++ b/examples/apps/debugserver/frm_main.pas
@@ -82,6 +82,7 @@ uses
   ,fpg_memo
   ,simpleipc
   ,dbugmsg
+  ,fra_liveview
   ;
 
 type
@@ -101,6 +102,7 @@ type
     btnClear: TfpgButton;
     btnExpandView: TfpgButton;
     Bevel3: TfpgBevel;
+    btnLiveView: TfpgButton;
     {@VFD_HEAD_END: MainForm}
     miPause: TfpgMenuItem;
     FIPCSrv: TSimpleIPCServer;
@@ -109,6 +111,7 @@ type
     FDiscarded: Integer;
     FShowOnMessage: Boolean;
     FMemo: TfpgMemo;
+    FLiveViewFrame: TLiveViewFrame;
     procedure   StartServer;
     procedure   StopServer;
     procedure   CheckMessages(Sender: TObject);
@@ -125,9 +128,12 @@ type
     procedure   btnClearClicked(Sender: TObject);
     procedure   btnPauseClicked(Sender: TObject);
     procedure   btnStartClicked(Sender: TObject);
+    procedure   btnLiveViewClicked(Sender: TObject);
     procedure   GridDrawCell(Sender: TObject; const ARow, ACol: Integer; const ARect: TfpgRect; const AFlags: TfpgGridDrawState; var ADefaultDrawing: boolean);
     procedure   GridRowChanged(Sender: TObject; ARow: Integer);
     procedure   GridClicked(Sender: TObject);
+    procedure   CreateLiveViewFrame;
+    procedure   DestroyLiveViewFrame;
   public
     constructor Create(AOwner: TComponent); override;
     destructor  Destroy; override;
@@ -214,6 +220,31 @@ begin
     FMemo.Text := grdMessages.Cells[2, grdMessages.FocusRow];
 end;
 
+procedure TMainForm.CreateLiveViewFrame;
+begin
+  if Assigned(FLiveViewFrame) then
+    FLiveViewFrame.Free;
+  FLiveViewFrame := TLiveViewFrame.Create(self);
+  grdMessages.Height := grdMessages.Height - FLiveViewFrame.Height;
+  grdMessages.UpdateWindowPosition;
+  FLiveViewFrame.SetPosition(grdMessages.Left, grdMessages.Bottom+1, grdMessages.Width, FLiveViewFrame.Height);
+end;
+
+procedure TMainForm.DestroyLiveViewFrame;
+begin
+  grdMessages.Height := grdMessages.Height + FLiveViewFrame.Height;
+  FreeAndNil(FLiveViewFrame);
+  grdMessages.UpdateWindowPosition;
+end;
+
+procedure TMainForm.btnLiveViewClicked(Sender: TObject);
+begin
+  if btnLiveView.Down then
+    CreateLiveViewFrame
+  else
+    DestroyLiveViewFrame;
+end;
+
 procedure TMainForm.StartServer;
 begin
   FIPCSrv := TSimpleIPCServer.Create(nil);
@@ -308,7 +339,7 @@ const
 begin
   if btnExpandView.Down then
   begin
-    FMemo := CreateMemo(self, grdMessages.Right + cSpacing, grdMessages.Top, 200, grdMessages.Height);
+    FMemo := CreateMemo(self, grdMessages.Right + cSpacing, grdMessages.Top, 200, Height - grdMessages.Top - cSpacing);
     FMemo.UpdateWindowPosition;
     grdMessages.Anchors := grdMessages.Anchors - [anRight];
     Width := Width + FMemo.Width + (2 * cSpacing);
@@ -557,6 +588,23 @@ begin
     Style := bsLowered;
   end;
 
+  btnLiveView := TfpgButton.Create(Bevel1);
+  with btnLiveView do
+  begin
+    Name := 'btnLiveView';
+    SetPosition(156, 2, 24, 24);
+    Text := 'LV';
+    AllowAllUp := True;
+    Flat := True;
+    FontDesc := '#Label1';
+    GroupIndex := 3;
+    Hint := '';
+    ImageName := '';
+    TabOrder := 8;
+    Focusable := False;
+    OnClick := @btnLiveViewClicked;
+  end;
+
   {@VFD_BODY_END: MainForm}
   {%endregion}