LazMapViewer: Fix trackdemo sample. Add checkbox to use threads.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@8110 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/lazmapviewer/examples/trackdemo/main.lfm

@@ -211,6 +211,7 @@ object MainForm: TMainForm
       FEEB0000FEC70000FE980000FD570000EA0CFFFFFF00FFFFFF00FFFFFF00FFFF
       FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00
     }
+    POIImagesWidth = 0
     POITextBgColor = clCream
     OnCenterMove = MapViewCenterMove
     OnZoomChange = MapViewZoomChange
@@ -249,10 +250,10 @@ object MainForm: TMainForm
       OnPrepareCanvas = TrackGridPrepareCanvas
       ColWidths = (
         30
+        85
+        85
+        85
         84
-        84
-        84
-        87
       )
       Cells = (
         4
@@ -277,7 +278,7 @@ object MainForm: TMainForm
       Left = 0
       Height = 19
       Top = 565
-      Width = 152
+      Width = 150
       Anchors = [akLeft, akBottom]
       BorderSpacing.Top = 8
       Caption = 'Trace track automatically'
@@ -352,6 +353,19 @@ object MainForm: TMainForm
       BorderSpacing.Top = 8
       Shape = bsBottomLine
     end
+    object cbUseThreads: TCheckBox
+      AnchorSideLeft.Control = cbAutoTrace
+      AnchorSideLeft.Side = asrBottom
+      AnchorSideTop.Control = cbAutoTrace
+      Left = 166
+      Height = 19
+      Top = 565
+      Width = 79
+      BorderSpacing.Left = 16
+      Caption = 'Use threads'
+      OnChange = cbUseThreadsChange
+      TabOrder = 3
+    end
   end
   object Splitter1: TSplitter
     Left = 606

components/lazmapviewer/examples/trackdemo/main.pas

@@ -15,6 +15,7 @@ type
   TMainForm = class(TForm)
     Bevel1: TBevel;
     cbAutoTrace: TCheckBox;
+    cbUseThreads: TCheckBox;
     clbTrackColor: TColorBox;
     Label1: TLabel;
     lblInfo: TLabel;
@@ -25,6 +26,7 @@ type
     TrackGrid: TStringGrid;
     Timer: TTimer;
     procedure cbAutoTraceChange(Sender: TObject);
+    procedure cbUseThreadsChange(Sender: TObject);
     procedure clbTrackColorChange(Sender: TObject);
     procedure FormActivate(Sender: TObject);
     procedure MapViewCenterMove(Sender: TObject);
@@ -104,6 +106,11 @@ begin
   end;
 end;
 
+procedure TMainForm.cbUseThreadsChange(Sender: TObject);
+begin
+  MapView.UseThreads := cbUseThreads.Checked;
+end;
+
 procedure TMainForm.clbTrackColorChange(Sender: TObject);
 begin
   MapView.DefaultTrackColor := clbTrackColor.Selected;

components/lazmapviewer/examples/trackdemo/track_demo.lpi

@@ -40,10 +40,9 @@
         <IsPartOfProject Value="True"/>
       </Unit0>
       <Unit1>
-        <Filename Value="..\colored_tracks\main.pas"/>
+        <Filename Value="main.pas"/>
         <IsPartOfProject Value="True"/>
         <ComponentName Value="MainForm"/>
-        <HasResources Value="True"/>
         <ResourceBaseClass Value="Form"/>
       </Unit1>
     </Units>

components/lazmapviewer/examples/trackdemo/track_demo.lpr

@@ -10,8 +10,7 @@ uses
   athreads,
   {$ENDIF}
   Interfaces, // this includes the LCL widgetset
-  Forms, main
-  { you can add units after this };
+  Forms, main;
 
 {$R *.res}