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procedurelist.pas
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procedurelist.pas
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{
***************************************************************************
* *
* This source is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This code is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* General Public License for more details. *
* *
* A copy of the GNU General Public License is available on the World *
* Wide Web at <http://www.gnu.org/copyleft/gpl.html>. You can also *
* obtain it by writing to the Free Software Foundation, *
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
* *
***************************************************************************
Procedure List - Lazarus addon
Author: Graeme Geldenhuys (graemeg@gmail.com)
Inspired by: GExperts (www.gexperts.org)
Last Modified: 2006-06-05
Abstract:
The procedure list enables you to view a list of Free Pascal / Lazarus
procedures in the current unit and quickly jump to the implementation of a
given procedure. Include files are also supported.
}
unit ProcedureList;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, Forms, Controls, Graphics, Dialogs, ComCtrls,
ExtCtrls, StdCtrls,
CodeTree, CodeToolManager, CodeAtom, CodeCache,
IDEImagesIntf;
type
{ TProcedureListForm }
TProcedureListForm = class(TForm)
cbObjects: TComboBox;
edMethods: TEdit;
lblObjects: TLabel;
lblSearch: TLabel;
LV: TListView;
pnlHeader: TPanel;
StatusBar: TStatusBar;
TB: TToolBar;
tbAbout: TToolButton;
tbCopy: TToolButton;
ToolButton2: TToolButton;
tbJumpTo: TToolButton;
ToolButton4: TToolButton;
tbFilterAny: TToolButton;
tbFilterStart: TToolButton;
ToolButton7: TToolButton;
tbChangeFont: TToolButton;
ToolButton9: TToolButton;
procedure cbObjectsChange(Sender: TObject);
procedure edMethodsChange(Sender: TObject);
procedure edMethodsKeyDown(Sender: TObject; var Key: Word;
Shift: TShiftState);
procedure edMethodsKeyPress(Sender: TObject; var Key: char);
procedure FormCreate(Sender: TObject);
procedure FormKeyPress(Sender: TObject; var Key: char);
procedure FormResize(Sender: TObject);
procedure FormShow(Sender: TObject);
procedure LVDblClick(Sender: TObject);
procedure LVSelectItem(Sender: TObject; Item: TListItem; Selected: Boolean);
procedure tbAboutClick(Sender: TObject);
procedure tbCopyClick(Sender: TObject);
private
FCaret: TCodeXYPosition;
FMainFilename: string;
FNewTopLine: integer;
{ Initialise GUI }
procedure SetupGUI;
{ Move editors focus to selected method. }
procedure JumpToSelection;
{ Populates Listview based on selected Class and user entered filter. }
procedure PopulateListview;
{ Populates only tho cbObjects combo with available classes. }
procedure PopulateObjectsCombo;
procedure AddToListView(pCodeTool: TCodeTool; pNode: TCodeTreeNode);
function PassFilter(pSearchAll: boolean; pProcName, pSearchStr: string; pCodeTool: TCodeTool; pNode: TCodeTreeNode): boolean;
public
property MainFilename: string read FMainFilename;
property Caret: TCodeXYPosition read FCaret;
property NewTopLine: integer read FNewTopLine;
end;
procedure ExecuteProcedureList(Sender: TObject);
implementation
{$R *.lfm}
uses
MenuIntf
,SrcEditorIntf
,PascalParserTool
,KeywordFuncLists
,LCLType
,LazIDEIntf
,IDECommands
,Clipbrd
,LazarusIDEStrConsts
;
const
cAbout =
'Procedure List (Lazarus addon)' + #10#10 +
'Author: Graeme Geldenhuys (graemeg@gmail.com)' + #10 +
'Inspired by: GExperts (www.gexperts.org)';
{ This is where it all starts. Gets called from Lazarus. }
procedure ExecuteProcedureList(Sender: TObject);
var
frm: TProcedureListForm;
begin
Assert(Sender<>nil); // removes compiler warning
frm := TProcedureListForm.Create(nil);
try
frm.ShowModal;
if frm.ModalResult = mrOK then // we need to jump
begin
LazarusIDE.DoOpenFileAndJumpToPos(frm.Caret.Code.Filename,
Point(frm.Caret.X, frm.Caret.Y), frm.NewTopLine, -1,-1,
[ofRegularFile,ofUseCache]);
end;
finally
frm.Free;
end;
end;
{ Check, if the given string starts with this substring. Check ignores case. }
function StrStartsWith(sStr, sSubstr: String): Boolean;
begin
sStr := AnsiUpperCase(sStr);
sSubstr := AnsiUpperCase(sSubstr);
Result := Pos(sSubstr, sStr) = 1;
end;
function StrContains(const SubStr, Str: string; CaseSensitive: Boolean): Boolean;
begin
if CaseSensitive then
Result := Pos(SubStr, Str) > 0
else
Result := Pos(AnsiUpperCase(SubStr), AnsiUpperCase(Str)) > 0;
end;
function FilterFits(const SubStr, Str: string): boolean;
var
Src: PChar;
PFilter: PChar;
c: Char;
i: Integer;
begin
if SubStr='' then
begin
Result := true;
end
else
begin
Src := PChar(Str);
PFilter := PChar(SubStr);
repeat
c := Src^;
if c <> #0 then
begin
if UpChars[Src^] = UpChars[PFilter^] then
begin
i := 1;
while (UpChars[Src[i]] = UpChars[PFilter[i]]) and (PFilter[i] <> #0) do
inc(i);
if PFilter[i] = #0 then
begin
exit(true);
end;
end;
end
else
exit(false);
inc(Src);
until false;
end;
end;
{ TProcedureListForm }
procedure TProcedureListForm.FormResize(Sender: TObject);
begin
StatusBar.Panels[0].Width := self.ClientWidth - 105;
end;
procedure TProcedureListForm.FormShow(Sender: TObject);
begin
edMethods.SetFocus;
end;
procedure TProcedureListForm.LVDblClick(Sender: TObject);
begin
JumpToSelection;
end;
procedure TProcedureListForm.LVSelectItem(Sender: TObject; Item: TListItem;
Selected: Boolean);
begin
if Item = nil then
Exit; //==>
if Item.SubItems.Count < 4 then
Exit; //==>
if Selected then
StatusBar.Panels[0].Text := Item.SubItems[4];
end;
procedure TProcedureListForm.tbAboutClick(Sender: TObject);
begin
ShowMessage(cAbout);
end;
procedure TProcedureListForm.tbCopyClick(Sender: TObject);
begin
if Assigned(LV.Selected) then
Clipboard.AsText := LV.Selected.SubItems[0];
end;
procedure TProcedureListForm.SetupGUI;
begin
self.KeyPreview := True;
self.Position := poScreenCenter;
// assign resource strings to Captions and Hints
self.Caption := lisPListProcedureList;
lblObjects.Caption := lisPListObjects;
lblSearch.Caption := lisMenuSearch;
tbAbout.Hint := lisMenuTemplateAbout;
tbJumpTo.Hint := lisPListJumpToSelection;
tbFilterAny.Hint := lisPListFilterAny;
tbFilterStart.Hint := lisPListFilterStart;
tbChangeFont.Hint := lisPListChangeFont;
tbCopy.Hint := lisPListCopyMethodToClipboard;
LV.Column[1].Caption := lisProcedure;
LV.Column[2].Caption := lisPListType;
LV.Column[3].Caption := dlgAddHiAttrGroupLine;
// assign resource images to toolbuttons
TB.Images := IDEImages.Images_16;
tbCopy.ImageIndex := IDEImages.LoadImage(16, 'laz_copy');
tbChangeFont.ImageIndex := IDEImages.LoadImage(16, 'item_font');
tbAbout.ImageIndex := IDEImages.LoadImage(16, 'menu_information');
tbJumpTo.ImageIndex := IDEImages.LoadImage(16, 'menu_goto_line');
tbFilterAny.ImageIndex := IDEImages.LoadImage(16, 'item_filter');
tbFilterStart.ImageIndex := IDEImages.LoadImage(16, 'item_filter');
LV.Column[0].Width := 20;
LV.Column[1].Width := 300;
LV.Column[2].Width := 100;
LV.Column[3].Width := 60;
LV.ReadOnly := True;
LV.RowSelect := True;
LV.SortColumn := 1;
LV.SortType := stText;
LV.HideSelection := False;
LV.Items.Clear;
cbObjects.Style := csDropDownList;
cbObjects.Sorted := True;
cbObjects.DropDownCount := 8;
end;
procedure TProcedureListForm.JumpToSelection;
var
lItem: TListItem;
CodeBuffer: TCodeBuffer;
ACodeTool: TCodeTool;
lStartPos: integer;
begin
lItem := LV.Selected;
if lItem = nil then
Exit; //==>
if lItem.SubItems[3] = '' then
Exit; //==>
lStartPos := StrToInt(lItem.SubItems[3]);
CodeBuffer := CodeToolBoss.LoadFile(MainFilename,false,false);
if CodeBuffer = nil then
Exit; //==>
ACodeTool := nil;
CodeToolBoss.Explore(CodeBuffer,ACodeTool,false);
if ACodeTool = nil then
Exit; //==>
if not ACodeTool.CleanPosToCaretAndTopLine(lStartPos, FCaret, FNewTopLine) then
Exit; //==>
{ This should close the form }
self.ModalResult := mrOK;
end;
procedure TProcedureListForm.PopulateListview;
var
lSrcEditor: TSourceEditorInterface;
lCodeBuffer: TCodeBuffer;
lCodeTool: TCodeTool;
lNode: TCodeTreeNode;
begin
LV.BeginUpdate;
try
LV.Items.Clear;
{ get active source editor }
lSrcEditor := SourceEditorManagerIntf.ActiveEditor;
if lSrcEditor = nil then
Exit; //==>
lCodeBuffer := lSrcEditor.CodeToolsBuffer as TCodeBuffer;
{ parse source }
CodeToolBoss.Explore(lCodeBuffer,lCodeTool,False);
{ copy the tree }
if (lCodeTool = nil)
or (lCodeTool.Tree = nil)
or (lCodeTool.Tree.Root = nil) then
Exit; //==>
if Assigned(lCodeTool.Tree) then
begin
{ Find the starting point }
lNode := lCodeTool.FindImplementationNode;
if lNode = nil then
begin
{ fall back - guess we are working with a program unit }
lNode := lCodeTool.Tree.Root;
end;
{ populate the listview here }
lNode := lNode.FirstChild;
while lNode <> nil do
begin
if lNode.Desc = ctnProcedure then
begin
AddToListView(lCodeTool, lNode);
end;
lNode := lNode.NextBrother;
end;
end; { if }
finally
if LV.Items.Count > 0 then
begin
LV.Selected := LV.Items[0];
LV.ItemFocused := LV.Items[0];
end;
LV.EndUpdate;
end;
end;
procedure TProcedureListForm.PopulateObjectsCombo;
var
lSrcEditor: TSourceEditorInterface;
lCodeBuffer: TCodeBuffer;
lCodeTool: TCodeTool;
lNode: TCodeTreeNode;
lNodeText: string;
begin
cbObjects.Items.Clear;
try
{ get active source editor }
lSrcEditor := SourceEditorManagerIntf.ActiveEditor;
if lSrcEditor = nil then
Exit; //==>
lCodeBuffer := lSrcEditor.CodeToolsBuffer as TCodeBuffer;
{ parse source }
CodeToolBoss.Explore(lCodeBuffer,lCodeTool,False);
if (lCodeTool = nil)
or (lCodeTool.Tree = nil)
or (lCodeTool.Tree.Root = nil) then
Exit; //==>
{ copy the tree }
if Assigned(lCodeTool.Tree) then
begin
{ Find the starting point }
lNode := lCodeTool.FindImplementationNode;
if lNode = nil then
begin
{ fall back - guess we are working with a program unit }
lNode := lCodeTool.Tree.Root;
end;
{ populate the Combobox here! }
lNode := lNode.FirstChild;
while lNode <> nil do
begin
if lNode.Desc = ctnProcedure then
begin
lNodeText := lCodeTool.ExtractClassNameOfProcNode(lNode);
cbObjects.Items.Add(lNodeText);
end;
lNode := lNode.NextBrother;
end;
end;
cbObjects.Sorted := true;
cbObjects.Sorted := false;
cbObjects.Items.Insert(0, lisPListAll);
cbObjects.Items.Insert(1, lisPListNone);
finally
cbObjects.ItemIndex := 0; // select <All> as the default
if (cbObjects.Items.Count > 0) and (cbObjects.Text = '') then // some widgetsets have issues here so we do this
cbObjects.Text := cbObjects.Items[0];
end;
end;
procedure TProcedureListForm.AddToListView(pCodeTool: TCodeTool; pNode: TCodeTreeNode);
var
lItem: TListItem;
lNodeText: string;
lType: string;
lCaret: TCodeXYPosition;
FSearchAll: boolean;
begin
FSearchAll := cbObjects.Text = lisPListAll;
lNodeText := pCodeTool.ExtractProcHead(pNode,
[phpWithoutClassKeyword, phpWithoutParamList, phpWithoutBrackets,
phpWithoutSemicolon, phpWithoutClassName]);
{ Must we add this pNode or not? }
if not PassFilter(FSearchAll, lNodeText, edMethods.Text, pCodeTool, pNode) then
Exit; //==>
{ Add new list item }
lItem := LV.Items.Add;
{ procedure name }
lNodeText := pCodeTool.ExtractProcHead(pNode,
[phpWithoutParamList, phpWithoutBrackets, phpWithoutSemicolon]);
lItem.SubItems.Add(lNodeText);
{ type }
lNodeText := pCodeTool.ExtractProcHead(pNode,
[phpWithStart, phpWithoutParamList, phpWithoutBrackets, phpWithoutSemicolon]);
if Pos('procedure', lNodeText) > 0 then
lType := 'Procedure'
else
lType := 'Function';
lItem.SubItems.Add(lType);
{ line number }
if pCodeTool.CleanPosToCaret(pNode.StartPos, lCaret) then
lItem.SubItems.Add(IntToStr(lCaret.Y));
{ start pos - used by JumpToSelected() }
lItem.SubItems.Add(IntToStr(pNode.StartPos));
{ full procedure name used in statusbar }
lNodeText := pCodeTool.ExtractProcHead(pNode,
[phpWithStart,phpWithVarModifiers,
phpWithParameterNames,phpWithDefaultValues,phpWithResultType,
phpWithOfObject,phpWithCallingSpecs,phpWithProcModifiers]);
lItem.SubItems.Add(lNodeText);
end;
{ Do we pass all the filter tests to continue? }
function TProcedureListForm.PassFilter(pSearchAll: boolean;
pProcName, pSearchStr: string; pCodeTool: TCodeTool; pNode: TCodeTreeNode
): boolean;
var
lClass: string;
function ClassMatches: boolean;
begin
{ lets filter by class selection. }
lClass := pCodeTool.ExtractClassNameOfProcNode(pNode);
if cbObjects.Text = lisPListNone then
Result := lClass = ''
else
Result := lClass = cbObjects.Text;
end;
begin
Result := False;
if (Length(pSearchStr) = 0) then // seach string is empty
begin
if pSearchAll then
Result := True
else
Result := ClassMatches;
end
else if not pSearchAll and tbFilterStart.Down
and SameText(pSearchStr, Copy(pProcName, 1, Length(pSearchStr))) then
Result := True
else if not pSearchAll and tbFilterAny.Down and ClassMatches
and FilterFits(pSearchStr, pProcName) then
Result := True
else if pSearchAll and FilterFits(pSearchStr, pProcName) then
Result := True;
end;
procedure TProcedureListForm.FormKeyPress(Sender: TObject; var Key: char);
begin
if Key = #27 then // Escape key
begin
self.ModalResult := mrCancel;
end;
end;
procedure TProcedureListForm.FormCreate(Sender: TObject);
begin
if SourceEditorManagerIntf.ActiveEditor = nil then
Exit; //==>
FMainFilename := SourceEditorManagerIntf.ActiveEditor.Filename;
Caption := Caption + ExtractFileName(FMainFilename);
SetupGUI;
PopulateObjectsCombo;
PopulateListView;
StatusBar.Panels[0].Text := self.MainFilename;
end;
procedure TProcedureListForm.edMethodsKeyPress(Sender: TObject; var Key: char);
begin
case Key of
#13:
begin
JumpToSelection;
Key := #0;
end;
#27:
begin
self.ModalResult := mrCancel;
Key := #0;
end;
end;
end;
procedure TProcedureListForm.edMethodsChange(Sender: TObject);
begin
PopulateListview;
end;
procedure TProcedureListForm.cbObjectsChange(Sender: TObject);
begin
PopulateListview;
end;
procedure TProcedureListForm.edMethodsKeyDown(Sender: TObject; var Key: Word;
Shift: TShiftState);
begin
if LV.Items.Count = 0 then
Exit;
if Key = VK_Down then
begin
if (LV.Items.IndexOf(LV.ItemFocused) + 1) < LV.Items.Count then
LV.ItemFocused := LV.Items[(LV.Items.IndexOf(LV.ItemFocused) + 1)];
end
else if Key = VK_Up then
begin
if (LV.Items.IndexOf(LV.ItemFocused) - 1) >= 0 then
LV.ItemFocused := LV.Items[(LV.Items.IndexOf(LV.ItemFocused) - 1)];
end
else if Key = VK_Home then
begin
LV.ItemFocused := LV.Items[0];
end
else if Key = VK_End then
begin
LV.ItemFocused := LV.Items[LV.Items.Count - 1];
end;
if LV.ItemFocused<>nil then
begin
LV.Selected := LV.ItemFocused;
if Assigned(LV.Selected) then
LV.Selected.MakeVisible(True);
end;
end;
end.