LazMapViewer: Add "reorderplugins" demo. Less hints/warnings in spreadmarker plugin code.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@9532 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/lazmapviewer/examples/plugin_demos/reorderplugins_demo/project1.lpi

@@ -0,0 +1,84 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<CONFIG>
+  <ProjectOptions>
+    <Version Value="12"/>
+    <PathDelim Value="\"/>
+    <General>
+      <SessionStorage Value="InProjectDir"/>
+      <Title Value="project1"/>
+      <Scaled Value="True"/>
+      <ResourceType Value="res"/>
+      <UseXPManifest Value="True"/>
+      <XPManifest>
+        <DpiAware Value="True"/>
+      </XPManifest>
+      <Icon Value="0"/>
+    </General>
+    <BuildModes>
+      <Item Name="Default" Default="True"/>
+    </BuildModes>
+    <PublishOptions>
+      <Version Value="2"/>
+      <UseFileFilters Value="True"/>
+    </PublishOptions>
+    <RunParams>
+      <FormatVersion Value="2"/>
+    </RunParams>
+    <RequiredPackages>
+      <Item>
+        <PackageName Value="lazMapViewerPkg"/>
+      </Item>
+      <Item>
+        <PackageName Value="LCL"/>
+      </Item>
+    </RequiredPackages>
+    <Units>
+      <Unit>
+        <Filename Value="project1.lpr"/>
+        <IsPartOfProject Value="True"/>
+      </Unit>
+      <Unit>
+        <Filename Value="unit1.pas"/>
+        <IsPartOfProject Value="True"/>
+        <ComponentName Value="Form1"/>
+        <HasResources Value="True"/>
+        <ResourceBaseClass Value="Form"/>
+        <UnitName Value="Unit1"/>
+      </Unit>
+    </Units>
+  </ProjectOptions>
+  <CompilerOptions>
+    <Version Value="11"/>
+    <PathDelim Value="\"/>
+    <Target>
+      <Filename Value="project1"/>
+    </Target>
+    <SearchPaths>
+      <IncludeFiles Value="$(ProjOutDir)"/>
+      <UnitOutputDirectory Value="lib\$(TargetCPU)-$(TargetOS)"/>
+    </SearchPaths>
+    <Linking>
+      <Debugging>
+        <DebugInfoType Value="dsDwarf3"/>
+      </Debugging>
+      <Options>
+        <Win32>
+          <GraphicApplication Value="True"/>
+        </Win32>
+      </Options>
+    </Linking>
+  </CompilerOptions>
+  <Debugging>
+    <Exceptions>
+      <Item>
+        <Name Value="EAbort"/>
+      </Item>
+      <Item>
+        <Name Value="ECodetoolError"/>
+      </Item>
+      <Item>
+        <Name Value="EFOpenError"/>
+      </Item>
+    </Exceptions>
+  </Debugging>
+</CONFIG>

components/lazmapviewer/examples/plugin_demos/reorderplugins_demo/project1.lpr

@@ -0,0 +1,28 @@
+program project1;
+
+{$mode objfpc}{$H+}
+
+uses
+  {$IFDEF UNIX}
+  cthreads,
+  {$ENDIF}
+  {$IFDEF HASAMIGA}
+  athreads,
+  {$ENDIF}
+  Interfaces, // this includes the LCL widgetset
+  Forms, Unit1
+  { you can add units after this };
+
+{$R *.res}
+
+begin
+  RequireDerivedFormResource := True;
+  Application.Scaled := True;
+  {$PUSH}{$WARN 5044 OFF}
+  Application.MainFormOnTaskbar := True;
+  {$POP}
+  Application.Initialize;
+  Application.CreateForm(TForm1, Form1);
+  Application.Run;
+end.
+

components/lazmapviewer/examples/plugin_demos/reorderplugins_demo/unit1.lfm

@@ -0,0 +1,97 @@
+object Form1: TForm1
+  Left = 314
+  Height = 372
+  Top = 130
+  Width = 706
+  Caption = 'Form1'
+  ClientHeight = 372
+  ClientWidth = 706
+  LCLVersion = '4.99.0.0'
+  OnCreate = FormCreate
+  object MapView1: TMapView
+    Left = 224
+    Height = 372
+    Top = 0
+    Width = 482
+    Active = True
+    Align = alClient
+    DownloadEngine = MapView1.BuiltInDLE
+    DrawingEngine = MapView1.BuiltInDE
+    Layers = <>
+    Font.Color = clBlack
+    MapProvider = 'OpenStreetMap Mapnik'
+    PluginManager = MvPluginManager1
+  end
+  object Panel1: TPanel
+    Left = 0
+    Height = 372
+    Top = 0
+    Width = 224
+    Align = alLeft
+    BevelOuter = bvNone
+    ClientHeight = 372
+    ClientWidth = 224
+    TabOrder = 1
+    object Label1: TLabel
+      Left = 16
+      Height = 15
+      Top = 12
+      Width = 124
+      Caption = 'Select top-most plugin:'
+    end
+    object ComboBox1: TComboBox
+      Left = 16
+      Height = 23
+      Top = 32
+      Width = 192
+      ItemHeight = 15
+      Style = csDropDownList
+      TabOrder = 0
+      OnChange = ComboBox1Change
+    end
+    object ValueListEditor1: TValueListEditor
+      Left = 16
+      Height = 255
+      Top = 72
+      Width = 192
+      FixedCols = 0
+      RowCount = 2
+      TabOrder = 1
+      DisplayOptions = [doColumnTitles, doAutoColResize]
+      TitleCaptions.Strings = (
+        'Index'
+        'Plugin'
+      )
+      ColWidths = (
+        94
+        94
+      )
+    end
+  end
+  object MvPluginManager1: TMvPluginManager
+    Left = 312
+    Top = 120
+    object MvPluginManager1LegalNoticePlugin1: TLegalNoticePlugin
+      BackgroundColor = clWhite
+      Font.Height = -19
+      LegalNotice = 'Test 1'
+      Opacity = 1
+    end
+    object MvPluginManager1LegalNoticePlugin2: TLegalNoticePlugin
+      BackgroundColor = clYellow
+      Font.Color = clRed
+      Font.Height = -19
+      LegalNotice = 'Test 2'
+      Opacity = 1
+      Spacing = 14
+    end
+    object MvPluginManager1LegalNoticePlugin3: TLegalNoticePlugin
+      BackgroundColor = clBlue
+      Font.Color = clWhite
+      Font.Height = -19
+      LegalNotice = 'Test 3'
+      Opacity = 1
+      Spacing = 24
+    end
+  end
+end

components/lazmapviewer/examples/plugin_demos/reorderplugins_demo/unit1.pas

@@ -0,0 +1,94 @@
+unit Unit1;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  Classes, ExtCtrls, mvMapViewer, mvPluginCore, mvPlugins, StdCtrls, SysUtils,
+  Forms, Controls, Graphics, Dialogs, ValEdit;
+
+type
+  TForm1 = class(TForm)
+    ComboBox1: TComboBox;
+    Label1: TLabel;
+    MapView1: TMapView;
+    MvPluginManager1: TMvPluginManager;
+    MvPluginManager1LegalNoticePlugin1: TLegalNoticePlugin;
+    MvPluginManager1LegalNoticePlugin2: TLegalNoticePlugin;
+    MvPluginManager1LegalNoticePlugin3: TLegalNoticePlugin;
+    Panel1: TPanel;
+    ValueListEditor1: TValueListEditor;
+    procedure ComboBox1Change(Sender: TObject);
+    procedure FormCreate(Sender: TObject);
+  private
+    procedure UpdatePluginList;
+
+  public
+
+  end;
+
+var
+  Form1: TForm1;
+
+implementation
+
+{$R *.lfm}
+
+procedure TForm1.ComboBox1Change(Sender: TObject);
+var
+  i, idx, n: Integer;
+begin
+  if Combobox1.ItemIndex = -1 then
+    exit;
+
+  n := MvPluginManager1.PlugInList.Count;
+  idx := -1;
+  for i := 0 to n-1 do
+    if (MvPluginManager1.PluginList[i] is TLegalNoticePlugin) and
+       (TLegalNoticePlugin(MvPluginManager1.PluginList[i]).LegalNotice = Combobox1.Items[Combobox1.ItemIndex]) then
+    begin
+      idx := i;
+      break;
+    end;
+
+  if idx = -1 then
+    exit;
+
+   MvPluginManager1.PluginList.Move(idx, n-1);
+   // or:
+   //  MvPluginManager1.PluginList[i].Index := n-1;
+  UpdatePluginList;
+
+  MapView1.Invalidate;
+end;
+
+procedure TForm1.FormCreate(Sender: TObject);
+var
+  i: Integer;
+begin
+  Combobox1.Items.Clear;
+  for i := 0 to MvPluginManager1.PluginList.Count-1 do
+    Combobox1.Items.Add(TLegalNoticePlugin(MvPluginManager1.PluginList[i]).LegalNotice);
+  Combobox1.ItemIndex := Combobox1.Items.Count-1;
+
+  UpdatePluginList;
+end;
+
+procedure TForm1.UpdatePluginList;
+var
+  i, n: Integer;
+  txt: String;
+begin
+  ValueListeditor1.Clear;
+  n := MvPluginManager1.PluginList.Count;
+  for i := n-1 downto 0 do
+  begin
+    txt := IntToStr(i);
+    if i = 0 then txt := txt + ' (bottom)' else if i = n-1 then txt := txt + ' (top)';
+    ValueListEditor1.InsertRow(txt, TLegalNoticePlugin(MvPluginManager1.PluginList[i]).LegalNotice, true);
+  end;
+end;
+
+end.
+

components/lazmapviewer/source/addons/plugins/spreadmarkers/mvspreadmarker_plugin.pas

@@ -121,9 +121,9 @@ type
     FOptions : TSpreadMarkerOptions;
     function GetSpreadModeActive(AMapView : TMapView) : Boolean;
     function GetSpreadMarkerCount(AMapView : TMapView) : Integer;
-    function GetSpreadMarkerOfsCenterX(AMapView : TMapView; AIndex : Integer): Integer;
+    function GetSpreadMarkerOfsCenterX(AMapView : TMapView; {%H-}AIndex : Integer): Integer;
-    function GetSpreadMarkerOfsCenterY(AMapView : TMapView; AIndex : Integer): Integer;
+    function GetSpreadMarkerOfsCenterY(AMapView : TMapView; {%H-}AIndex : Integer): Integer;
-    function GetSpreadMarkerOrgPositions(AMapView : TMapView; AIndex : Integer): TRealPoint;
+    function GetSpreadMarkerOrgPositions(AMapView : TMapView; {%H-}AIndex : Integer): TRealPoint;
     function GetSpreadMarkers(AMapView : TMapView; AIndex : Integer) : TGPSPoint;
     procedure SetMarkerSpreadDelayMS(Value : Integer);
     procedure SetMarkerCollapseDelayMS(Value : Integer);
@@ -141,16 +141,16 @@ type
   protected
 //    procedure MouseDown(AMapView: TMapView; Button: TMouseButton; Shift: TShiftState;
 //      X, Y: Integer; var Handled: Boolean); override;
-    procedure MouseMove(AMapView: TMapView; AShift: TShiftState; X,Y: Integer;
+    procedure MouseMove(AMapView: TMapView; {%H-}AShift: TShiftState; X,Y: Integer;
-      var Handled: Boolean); override;
+      var {%H-}Handled: Boolean); override;
 //    procedure MouseUp(AMapView: TMapView; Button: TMouseButton; Shift: TShiftState;
 //      X, Y: Integer; var Handled: Boolean); override;
-    procedure ZoomChange(AMapView: TMapView; var Handled: Boolean); override;
+    procedure ZoomChange(AMapView: TMapView; var {%H-}Handled: Boolean); override;
     procedure AfterPaint(AMapView: TMapView; var Handled: Boolean); override;
-    procedure AfterDrawObjects(AMapView: TMapView; var Handled: Boolean); override;
+    procedure AfterDrawObjects(AMapView: TMapView; var {%H-}Handled: Boolean); override;
     procedure GPSItemsModified(AMapView: TMapView; ChangedList: TGPSObjectList;
                                ActualObjs: TGPSObjList; Adding: Boolean;
-                               var Handled : Boolean);override;
+                               var {%H-}Handled : Boolean);override;
 
     function CreateMultiMapsPluginData : TMvMultiMapsPluginData;override;
 
@@ -443,7 +443,7 @@ begin
   sd := TSpreadMarkerPluginData(MapViewDataItem[AMapView]);
   if not Assigned(sd) then
   begin
-    FillChar(ld,SizeOf(ld),0);
+    FillChar(ld{%H-},SizeOf(ld),0);
     SetMapViewData(AMapView,ld,SizeOf(ld));
   end;
   sd := TSpreadMarkerPluginData(MapViewDataItem[AMapView]);
@@ -494,7 +494,7 @@ begin
   sd := TSpreadMarkerPluginData(MapViewDataItem[AMapView]);
   if not Assigned(sd) then
   begin
-    FillChar(ld,SizeOf(ld),0);
+    FillChar(ld{%H-},SizeOf(ld),0);
     SetMapViewData(AMapView,ld,SizeOf(ld));
   end;
   sd := TSpreadMarkerPluginData(MapViewDataItem[AMapView]);