RxDBGrid - Find Next now working

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2685 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/rx/dbutils.pas

@@ -48,6 +48,9 @@ const
   StringTypes = [ftString, {ftMemo,} ftFixedChar, ftWideString, ftFixedWideChar, ftWideMemo];
 
 
+type
+  TRxSearchDirection = (rsdAll, rsdForward, rsdBackward);
+
 type
 
 { TLocateObject }
@@ -107,7 +110,8 @@ procedure InternalRestoreFields(DataSet: TDataSet; IniFile: TObject;
   const Section: string; RestoreVisible: Boolean);}
   
 function DataSetLocateThrough(DataSet: TDataSet; const KeyFields: string;
-  const KeyValues: Variant; Options: TLocateOptions): Boolean;
+  const KeyValues: Variant; Options: TLocateOptions; SearchOrigin:TRxSearchDirection = rsdAll): Boolean;
+
 procedure SaveFieldsReg(DataSet: TDataSet; IniFile: TRegIniFile);
 procedure RestoreFieldsReg(DataSet: TDataSet; IniFile: TRegIniFile;
   RestoreVisible: Boolean);
@@ -379,7 +383,7 @@ end;
 
 { DataSet locate routines }
 function DataSetLocateThrough(DataSet: TDataSet; const KeyFields: string;
-  const KeyValues: Variant; Options: TLocateOptions): Boolean;
+  const KeyValues: Variant; Options: TLocateOptions; SearchOrigin:TRxSearchDirection = rsdAll): Boolean;
 var
   FieldCount: Integer;
   Fields: TList;
@@ -430,20 +434,40 @@ begin
   try
     DataSet.GetFieldList(Fields, KeyFields);
     FieldCount := Fields.Count;
-    Result := CompareRecord;
-    if Result then Exit;
+
+    if SearchOrigin = rsdAll then
+    begin
+      Result := CompareRecord;
+      if Result then Exit;
+    end;
+
     DataSet.DisableControls;
     try
       Bookmark := DataSet.GetBookmark;
       try
-        with DataSet do begin
-          First;
-          while not EOF do begin
+        if SearchOrigin in [rsdAll, rsdForward] then
+        begin
+          if SearchOrigin = rsdAll then
+            DataSet.First;
+          while not DataSet.EOF do
+          begin
             Result := CompareRecord;
             if Result then Break;
-            Next;
+            DataSet.Next;
+          end;
+        end
+        else
+        if SearchOrigin = rsdBackward then
+        begin
+          //DataSet.Last;
+          while not DataSet.BOF do
+          begin
+            Result := CompareRecord;
+            if Result then Break;
+            DataSet.Prior;
           end;
         end;
+
       finally
 {$IFDEF NoAutomatedBookmark}
         if not Result and DataSet.BookmarkValid(PChar(Bookmark)) then

components/rx/rxdbgrid_findunit.lfm

@@ -1,7 +1,7 @@
 object rxDBGridFindForm: TrxDBGridFindForm
-  Left = 969
+  Left = 688
   Height = 225
-  Top = 314
+  Top = 327
   Width = 493
   ActiveControl = Edit1
   Caption = 'Find'
@@ -19,7 +19,7 @@ object rxDBGridFindForm: TrxDBGridFindForm
     Left = 6
     Height = 15
     Top = 6
-    Width = 66
+    Width = 69
     BorderSpacing.Around = 6
     Caption = 'Text to find'
     FocusControl = Edit1
@@ -34,7 +34,7 @@ object rxDBGridFindForm: TrxDBGridFindForm
     Left = 6
     Height = 15
     Top = 58
-    Width = 68
+    Width = 73
     BorderSpacing.Around = 6
     Caption = 'Find at filed'
     ParentColor = False
@@ -44,9 +44,9 @@ object rxDBGridFindForm: TrxDBGridFindForm
     AnchorSideBottom.Control = Owner
     AnchorSideBottom.Side = asrBottom
     Left = 347
-    Height = 35
-    Top = 184
-    Width = 79
+    Height = 33
+    Top = 186
+    Width = 81
     Anchors = [akRight, akBottom]
     AutoSize = True
     BorderSpacing.Around = 6
@@ -54,7 +54,7 @@ object rxDBGridFindForm: TrxDBGridFindForm
     Caption = 'Find more'
     Default = True
     OnClick = BtnFindClick
-    TabOrder = 4
+    TabOrder = 2
   end
   object Button2: TButton
     AnchorSideTop.Control = BtnFind
@@ -63,10 +63,10 @@ object rxDBGridFindForm: TrxDBGridFindForm
     AnchorSideRight.Side = asrBottom
     AnchorSideBottom.Control = Owner
     AnchorSideBottom.Side = asrBottom
-    Left = 432
-    Height = 35
-    Top = 184
-    Width = 55
+    Left = 434
+    Height = 33
+    Top = 186
+    Width = 53
     Anchors = [akRight, akBottom]
     AutoSize = True
     BorderSpacing.Top = 8
@@ -75,7 +75,7 @@ object rxDBGridFindForm: TrxDBGridFindForm
     Cancel = True
     Caption = 'Close'
     OnClick = Button2Click
-    TabOrder = 5
+    TabOrder = 3
   end
   object Edit1: TEdit
     AnchorSideLeft.Control = ComboBox1
@@ -98,7 +98,7 @@ object rxDBGridFindForm: TrxDBGridFindForm
     AnchorSideRight.Control = Owner
     AnchorSideRight.Side = asrBottom
     Left = 12
-    Height = 29
+    Height = 27
     Top = 79
     Width = 475
     Anchors = [akTop, akLeft, akRight]
@@ -107,33 +107,25 @@ object rxDBGridFindForm: TrxDBGridFindForm
     Style = csDropDownList
     TabOrder = 1
   end
-  object CheckBox1: TCheckBox
-    AnchorSideLeft.Control = Owner
-    AnchorSideTop.Control = ComboBox1
-    AnchorSideTop.Side = asrBottom
-    Left = 6
-    Height = 22
-    Top = 114
-    Width = 118
-    BorderSpacing.Around = 6
-    Caption = 'Case sensetive'
-    TabOrder = 2
-  end
   object RadioGroup1: TRadioGroup
-    AnchorSideLeft.Control = CheckBox1
+    AnchorSideLeft.Control = Panel1
     AnchorSideLeft.Side = asrBottom
     AnchorSideTop.Control = ComboBox1
     AnchorSideTop.Side = asrBottom
     AnchorSideRight.Control = Owner
     AnchorSideRight.Side = asrBottom
-    Left = 130
-    Height = 51
-    Top = 114
-    Width = 357
-    Anchors = [akTop, akLeft, akRight]
+    AnchorSideBottom.Control = Panel1
+    AnchorSideBottom.Side = asrBottom
+    Left = 146
+    Height = 62
+    Top = 112
+    Width = 341
+    Anchors = [akTop, akLeft, akRight, akBottom]
     AutoFill = True
     AutoSize = True
-    BorderSpacing.Around = 6
+    BorderSpacing.Left = 6
+    BorderSpacing.Top = 6
+    BorderSpacing.Right = 6
     Caption = 'Direction'
     ChildSizing.LeftRightSpacing = 6
     ChildSizing.TopBottomSpacing = 6
@@ -143,27 +135,51 @@ object rxDBGridFindForm: TrxDBGridFindForm
     ChildSizing.ShrinkVertical = crsScaleChilds
     ChildSizing.Layout = cclLeftToRightThenTopToBottom
     ChildSizing.ControlsPerLine = 3
-    ClientHeight = 34
-    ClientWidth = 353
+    ClientHeight = 45
+    ClientWidth = 337
     Columns = 3
     Items.Strings = (
       'All'
       'Forward'
       'Backward'
     )
-    TabOrder = 6
-    Visible = False
+    TabOrder = 4
   end
-  object CheckBox2: TCheckBox
+  object Panel1: TPanel
     AnchorSideLeft.Control = Owner
-    AnchorSideTop.Control = CheckBox1
+    AnchorSideTop.Control = ComboBox1
     AnchorSideTop.Side = asrBottom
     Left = 6
-    Height = 22
-    Top = 142
-    Width = 84
+    Height = 62
+    Top = 112
+    Width = 134
+    AutoSize = True
     BorderSpacing.Around = 6
-    Caption = 'Partial key'
-    TabOrder = 3
+    ClientHeight = 62
+    ClientWidth = 134
+    TabOrder = 5
+    object CheckBox2: TCheckBox
+      AnchorSideLeft.Control = Panel1
+      AnchorSideTop.Control = CheckBox1
+      AnchorSideTop.Side = asrBottom
+      Left = 7
+      Height = 21
+      Top = 34
+      Width = 88
+      BorderSpacing.Around = 6
+      Caption = 'Partial key'
+      TabOrder = 0
+    end
+    object CheckBox1: TCheckBox
+      AnchorSideLeft.Control = Panel1
+      AnchorSideTop.Control = Panel1
+      Left = 7
+      Height = 21
+      Top = 7
+      Width = 120
+      BorderSpacing.Around = 6
+      Caption = 'Case sensetive'
+      TabOrder = 1
+    end
   end
 end

components/rx/rxdbgrid_findunit.pas

@@ -52,6 +52,7 @@ type
     Edit1: TEdit;
     Label1: TLabel;
     Label2: TLabel;
+    Panel1: TPanel;
     RadioGroup1: TRadioGroup;
     procedure BtnFindClick(Sender: TObject);
     procedure Button2Click(Sender: TObject);
@@ -103,6 +104,8 @@ begin
   RadioGroup1.Items.Add(sRxDbGridFindRangeBack);
   BtnFind.Caption:=sRxFindMore;
   Button2.Caption:=rsMbClose;
+
+  RadioGroup1.ItemIndex:=0;
 end;
 
 procedure TrxDBGridFindForm.FormShow(Sender: TObject);
@@ -114,6 +117,9 @@ procedure TrxDBGridFindForm.BtnFindClick(Sender: TObject);
 var
   FieldName:string;
   LOptions: TLocateOptions;
+  SearchOrigin:TRxSearchDirection;
+  P:TBookMark;
+  R:boolean;
 begin
   if Edit1.Text<>'' then
   begin
@@ -125,8 +131,18 @@ begin
 
       if CheckBox2.Checked then
         LOptions:=LOptions+[loPartialKey];
-      DataSetLocateThrough(FDataSet, FieldName, Edit1.Text, LOptions);
+
+      SearchOrigin:=TRxSearchDirection(RadioGroup1.ItemIndex);
+      P:=FDataSet.Bookmark;
+      if SearchOrigin = rsdForward then
+        FDataSet.Next
+      else
+      if SearchOrigin = rsdBackward then
+        FDataSet.Prior;
+      R:=DataSetLocateThrough(FDataSet, FieldName, Edit1.Text, LOptions, SearchOrigin);
     finally
+      if not R then
+        FDataSet.Bookmark:=P;
     end;
   end;
 end;

components/rx/rxnew.lpk

@@ -26,7 +26,7 @@ Copyright (c) 1998 Master-Bank
 translate to Lazarus by alexs in 2005 - 2012
 "/>
     <License Value="LGPL"/>
-    <Version Major="2" Minor="4" Release="2" Build="120"/>
+    <Version Major="2" Minor="4" Release="5" Build="130"/>
     <Files Count="67">
       <Item1>
         <Filename Value="autopanel.pas"/>