lazarus/ide/fpdoceditwindow.pas
mattias d00e501765 IDE: fpdoc editor: improved debugging
git-svn-id: trunk@18496 -
2009-01-29 13:47:15 +00:00

1235 lines
36 KiB
ObjectPascal

{
***************************************************************************
* *
* 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. *
* *
***************************************************************************
see for todo list: http://wiki.lazarus.freepascal.org/index.php/LazDoc
}
unit FPDocEditWindow;
{$mode objfpc}{$H+}
{ $define VerboseCodeHelp}
interface
uses
// FCL
Classes, SysUtils, StrUtils,
// LCL
LCLProc, LResources, StdCtrls, Buttons, ComCtrls, Controls, Dialogs,
LDockCtrl, ExtCtrls, Forms, Graphics,
// Synedit
SynEdit,
// codetools
FileProcs, CodeAtom, CodeCache, CodeToolManager,
Laz_DOM, Laz_XMLRead, Laz_XMLWrite,
// IDEIntf
ProjectIntf, LazIDEIntf, IDEHelpIntf, LazHelpIntf,
// IDE
IDEOptionDefs, EnvironmentOpts,
IDEProcs, LazarusIDEStrConsts, FPDocSelectInherited, FPDocSelectLink,
PackageSystem, CodeHelp;
type
TFPDocEditorFlag = (
fpdefWriting,
fpdefCodeCacheNeedsUpdate,
fpdefChainNeedsUpdate,
fpdefCaptionNeedsUpdate,
fpdefValueControlsNeedsUpdate,
fpdefInheritedControlsNeedsUpdate,
fpdefLinkIDComboNeedsUpdate
);
TFPDocEditorFlags = set of TFPDocEditorFlag;
{ TFPDocEditor }
TFPDocEditor = class(TForm)
AddLinkButton: TButton;
BrowseExampleButton: TButton;
ShortLabel: TLabel;
LinkEdit: TEdit;
LinkLabel: TLabel;
AddLinkToInheritedButton: TButton;
RightBtnPanel: TPanel;
SaveButton: TButton;
CreateButton: TButton;
CopyFromInheritedButton: TButton;
MoveToInheritedButton: TButton;
InheritedShortEdit: TEdit;
ExampleEdit: TEdit;
InheritedShortLabel: TLabel;
LinkIdComboBox: TComboBox;
DeleteLinkButton: TButton;
DescrMemo: TMemo;
LinkTextEdit: TEdit;
LinkListBox: TListBox;
OpenDialog: TOpenDialog;
LeftBtnPanel: TPanel;
ShortEdit: TEdit;
ErrorsMemo: TMemo;
PageControl: TPageControl;
DescrTabSheet: TTabSheet;
ErrorsTabSheet: TTabSheet;
ShortTabSheet: TTabSheet;
BoldFormatButton: TSpeedButton;
ItalicFormatButton: TSpeedButton;
InsertCodeTagButton: TSpeedButton;
InsertRemarkButton: TSpeedButton;
InsertVarTagButton: TSpeedButton;
ExampleTabSheet: TTabSheet;
InheritedTabSheet: TTabSheet;
InsertParagraphSpeedButton: TSpeedButton;
InsertLinkSpeedButton: TSpeedButton;
UnderlineFormatButton: TSpeedButton;
SeeAlsoTabSheet: TTabSheet;
ControlDocker: TLazControlDocker;
procedure AddLinkButtonClick(Sender: TObject);
procedure LinkEditEditingDone(Sender: TObject);
procedure AddLinkToInheritedButtonClick(Sender: TObject);
procedure BrowseExampleButtonClick(Sender: TObject);
procedure CopyFromInheritedButtonClick(Sender: TObject);
procedure CreateButtonClick(Sender: TObject);
procedure DeleteLinkButtonClick(Sender: TObject);
procedure DescrMemoChange(Sender: TObject);
procedure ErrorsMemoChange(Sender: TObject);
procedure ExampleEditChange(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure FormResize(Sender: TObject);
procedure FormatButtonClick(Sender: TObject);
procedure InsertLinkSpeedButtonClick(Sender: TObject);
procedure LinkChange(Sender: TObject);
procedure LinkListBoxClick(Sender: TObject);
procedure ApplicationIdle(Sender: TObject; var Done: Boolean);
procedure MoveToInheritedButtonClick(Sender: TObject);
procedure PageControlChange(Sender: TObject);
procedure SaveButtonClick(Sender: TObject);
procedure ShortEditEditingDone(Sender: TObject);
private
FCaretXY: TPoint;
FModified: Boolean;
FFlags: TFPDocEditorFlags;
fUpdateLock: Integer;
fSourceFilename: string;
fChain: TCodeHelpElementChain;
FOldValues: TFPDocElementValues;
FOldVisualValues: TFPDocElementValues;
function GetDoc: TXMLdocument;
function GetDocFile: TLazFPDocFile;
function GetSourceFilename: string;
function GetFirstElement: TDOMNode;
function GetContextTitle(Element: TCodeHelpElement): string;
function MakeLink: String;
function FindInheritedIndex: integer;
procedure Save;
function GetGUIValues: TFPDocElementValues;
procedure SetModified(const AValue: boolean);
function WriteNode(Element: TCodeHelpElement; Values: TFPDocElementValues;
Interactive: Boolean): Boolean;
procedure UpdateCodeCache;
procedure UpdateChain;
procedure UpdateCaption;
procedure UpdateLinkIdComboBox;
procedure UpdateValueControls;
procedure UpdateInheritedControls;
procedure OnLazDocChanging(Sender: TObject; LazDocFPFile: TLazFPDocFile);
procedure OnLazDocChanged(Sender: TObject; LazDocFPFile: TLazFPDocFile);
procedure LoadGUIValues(Element: TCodeHelpElement);
procedure MoveToInherited(Element: TCodeHelpElement);
procedure AddSeeAlsoLink(Link, LinkTitle: string);
function FindSeeAlsoLink(Link: string): integer;
function ExtractIDFromLinkTag(const LinkTag: string; out ID, Title: string): boolean;
function CreateElement(Element: TCodeHelpElement): Boolean;
procedure UpdateButtons;
function GetCurrentUnitName: string;
function GetCurrentModuleName: string;
public
procedure Reset;
procedure InvalidateChain;
procedure UpdateFPDocEditor(const SrcFilename: string; const Caret: TPoint);
procedure BeginUpdate;
procedure EndUpdate;
procedure ClearEntry(DoSave: Boolean);
property DocFile: TLazFPDocFile read GetDocFile;
property Doc: TXMLdocument read GetDoc;
property SourceFilename: string read GetSourceFilename;
property CaretXY: TPoint read FCaretXY;
property Modified: boolean read FModified write SetModified;
end;
var
FPDocEditor: TFPDocEditor = nil;
procedure DoShowFPDocEditor;
implementation
{ TFPDocEditor }
procedure DoShowFPDocEditor;
begin
if FPDocEditor = Nil then begin
Application.CreateForm(TFPDocEditor, FPDocEditor);
EnvironmentOptions.IDEWindowLayoutList.ItemByEnum(nmiwFPDocEditorName).Apply;
end;
if not FPDocEditor.Visible then
FPDocEditor.UpdateButtons;
FPDocEditor.Show;
end;
function TFPDocEditor.GetFirstElement: TDOMNode;
var
CurDocFile: TLazFPDocFile;
begin
Result:=nil;
CurDocFile:=DocFile;
if CurDocFile=nil then exit;
Result:=CurDocFile.GetFirstElement;
end;
procedure TFPDocEditor.UpdateLinkIdComboBox;
// fills LinkIdComboBox.Items
var
sl: TStringList;
Node: TDOMNode;
begin
if fUpdateLock>0 then begin
Include(FFlags,fpdefLinkIDComboNeedsUpdate);
exit;
end;
Exclude(FFlags,fpdefLinkIDComboNeedsUpdate);
{$IFDEF VerboseCodeHelp}
DebugLn(['TFPDocEditForm.UpdateLinkIdComboBox START']);
{$ENDIF}
LinkIdComboBox.Clear;
if Doc=nil then exit;
Node:=DocFile.GetElementWithName('seealso',false);
if Node=nil then exit;
Node:=Node.FirstChild;
if Node=nil then exit;
sl:=TStringList.Create;
// element nodes
while Node<>nil do begin
if (Node.NodeName='link') and (Node is TDomElement) then
sl.Add(TDomElement(Node)['name']);
Node := Node.NextSibling;
end;
LinkIdComboBox.Items.Assign(sl);
sl.Free;
end;
procedure TFPDocEditor.FormCreate(Sender: TObject);
begin
Caption := lisCodeHelpMainFormCaption;
ShortTabSheet.Caption := lisCodeHelpShortTag;
InheritedTabSheet.Caption := lisCodeHelpInherited;
DescrTabSheet.Caption := lisCodeHelpDescrTag;
ErrorsTabSheet.Caption := lisCodeHelpErrorsTag;
SeeAlsoTabSheet.Caption := lisCodeHelpSeeAlsoTag;
ExampleTabSheet.Caption := lisCodeHelpExampleTag;
PageControl.PageIndex := 0;
BoldFormatButton.Hint := lisCodeHelpHintBoldFormat;
ItalicFormatButton.Hint := lisCodeHelpHintItalicFormat;
UnderlineFormatButton.Hint := lisCodeHelpHintUnderlineFormat;
InsertCodeTagButton.Hint := lisCodeHelpHintInsertCodeTag;
InsertRemarkButton.Hint := lisCodeHelpHintRemarkTag;
InsertVarTagButton.Hint := lisCodeHelpHintVarTag;
InsertParagraphSpeedButton.Hint := lisCodeHelpInsertParagraphFormattingTag;
InsertLinkSpeedButton.Hint := lisCodeHelpInsertALink;
ShortLabel.Caption:=lisShort;
LinkLabel.Caption:=lisLink;
CreateButton.Caption := lisCodeHelpCreateButton;
CreateButton.Enabled:=false;
SaveButton.Caption := lisCodeHelpSaveButton;
SaveButton.Enabled:=false;
AddLinkButton.Caption := lisCodeHelpAddLinkButton;
DeleteLinkButton.Caption := lisCodeHelpDeleteLinkButton;
BrowseExampleButton.Caption := lisCodeHelpBrowseExampleButton;
MoveToInheritedButton.Caption:=lisLDMoveEntriesToInherited;
CopyFromInheritedButton.Caption:=lisLDCopyFromInherited;
AddLinkToInheritedButton.Caption:=lisLDAddLinkToInherited;
Reset;
CodeHelpBoss.AddHandlerOnChanging(@OnLazDocChanging);
CodeHelpBoss.AddHandlerOnChanged(@OnLazDocChanged);
Application.AddOnIdleHandler(@ApplicationIdle);
Name := NonModalIDEWindowNames[nmiwFPDocEditorName];
EnvironmentOptions.IDEWindowLayoutList.Apply(Self, Name);
ControlDocker:=TLazControlDocker.Create(Self);
ControlDocker.Name:='FPDocEditor';
{$IFDEF EnableIDEDocking}
ControlDocker.Manager:=LazarusIDE.DockingManager;
{$ENDIF}
BoldFormatButton.LoadGlyphFromLazarusResource('formatbold');
UnderlineFormatButton.LoadGlyphFromLazarusResource('formatunderline');
ItalicFormatButton.LoadGlyphFromLazarusResource('formatitalic');
InsertVarTagButton.LoadGlyphFromLazarusResource('insertvartag');
InsertCodeTagButton.LoadGlyphFromLazarusResource('insertcodetag');
InsertRemarkButton.LoadGlyphFromLazarusResource('insertremark');
end;
procedure TFPDocEditor.FormDestroy(Sender: TObject);
begin
Reset;
FreeAndNil(fChain);
if assigned(CodeHelpBoss) then
CodeHelpBoss.RemoveAllHandlersOfObject(Self);
Application.RemoveAllHandlersOfObject(Self);
end;
procedure TFPDocEditor.FormResize(Sender: TObject);
begin
LinkIdComboBox.Width := (AddLinkButton.Left - LinkIdComboBox.Left - 8) div 2;
end;
procedure TFPDocEditor.FormatButtonClick(Sender: TObject);
procedure InsertTag(const StartTag, EndTag: String);
begin
if PageControl.ActivePage = ShortTabSheet then
ShortEdit.SelText := StartTag + ShortEdit.SelText + EndTag;
if PageControl.ActivePage = DescrTabSheet then
DescrMemo.SelText := StartTag + DescrMemo.SelText + EndTag;
if PageControl.ActivePage = ErrorsTabSheet then
ErrorsMemo.SelText := StartTag + ErrorsMemo.SelText + EndTag;
end;
begin
case TSpeedButton(Sender).Tag of
//bold
0:
InsertTag('<b>', '</b>');
//italic
1:
InsertTag('<i>', '</i>');
//underline
2:
InsertTag('<u>', '</u>');
//code tag
3:
InsertTag('<p><code>', '</code></p>');
//remark tag
4:
InsertTag('<p><remark>', '</remark></p>');
//var tag
5:
InsertTag('<var>', '</var>');
//paragraph tag
6:
InsertTag('<p>', '</p>');
end;
end;
procedure TFPDocEditor.InsertLinkSpeedButtonClick(Sender: TObject);
var
Link: string;
LinkTitle: string;
LinkSrc: String;
begin
if (ShowFPDocLinkEditorDialog(Link,LinkTitle)<>mrOk)
and (Link<>'') then exit;
LinkSrc:='<link id="'+Link+'"';
if LinkTitle='' then begin
LinkSrc:=LinkSrc+'/>';
end else begin
LinkSrc:=LinkSrc+'>'+LinkTitle+'</link>';
end;
if PageControl.ActivePage = ShortTabSheet then
ShortEdit.SelText := LinkSrc;
if PageControl.ActivePage = DescrTabSheet then
DescrMemo.SelText := LinkSrc;
if PageControl.ActivePage = ErrorsTabSheet then
ErrorsMemo.SelText := LinkSrc;
end;
procedure TFPDocEditor.LinkChange(Sender: TObject);
var
NewLink: String;
OldLink: string;
begin
if LinkListBox.ItemIndex<0 then
Exit;
NewLink:=MakeLink;
OldLink:=LinkListBox.Items[LinkListBox.ItemIndex];
if NewLink<>OldLink then begin
LinkListBox.Items[LinkListBox.ItemIndex] := NewLink;
Modified:=true;
end;
end;
procedure TFPDocEditor.LinkListBoxClick(Sender: TObject);
var
LinkIndex: LongInt;
LinkTag: string;
ID: string;
Title: string;
begin
LinkIndex := LinkListBox.ItemIndex;
if LinkIndex = -1 then
Exit;
LinkTag:=LinkListBox.Items[LinkIndex];
ExtractIDFromLinkTag(LinkTag,ID,Title);
LinkIdComboBox.Text := ID;
LinkTextEdit.Text := Title;
end;
procedure TFPDocEditor.ApplicationIdle(Sender: TObject; var Done: Boolean);
begin
if fUpdateLock>0 then
begin
DebugLn(['WARNING: TFPDocEditor.ApplicationIdle fUpdateLock>0']);
exit;
end;
Done:=false;
if fpdefCodeCacheNeedsUpdate in FFlags then
UpdateCodeCache
else if fpdefChainNeedsUpdate in FFlags then
UpdateChain
else if fpdefCaptionNeedsUpdate in FFlags then
UpdateCaption
else if fpdefValueControlsNeedsUpdate in FFlags then
UpdateValueControls
else if fpdefInheritedControlsNeedsUpdate in FFlags then
UpdateInheritedControls
else if fpdefLinkIDComboNeedsUpdate in FFlags then
UpdateLinkIdComboBox
else
Done:=true;
end;
procedure TFPDocEditor.MoveToInheritedButtonClick(Sender: TObject);
var
i: Integer;
Element: TCodeHelpElement;
Candidates: TFPList;
FPDocSelectInheritedDlg: TFPDocSelectInheritedDlg;
ShortDescr: String;
begin
if fChain=nil then exit;
Candidates:=nil;
FPDocSelectInheritedDlg:=nil;
try
// find all entries till the first inherited entry with a description
for i:=1 to fChain.Count-1 do begin
Element:=fChain[i];
if Candidates=nil then
Candidates:=TFPList.Create;
Candidates.Add(Element);
if (Element.ElementNode<>nil)
and (Element.FPDocFile.GetValueFromNode(Element.ElementNode,fpdiShort)<>'')
then
break;
end;
// choose one entry
if (Candidates=nil) or (Candidates.Count=0) then exit;
if Candidates.Count=1 then begin
// there is only one candidate
Element:=TCodeHelpElement(Candidates[0]);
if (Element.ElementNode<>nil) then begin
ShortDescr:=Element.FPDocFile.GetValueFromNode(Element.ElementNode,fpdiShort);
if ShortDescr<>'' then begin
// the inherited entry already contains a description.
// ask if it should be really replaced
if QuestionDlg(lisCodeHelpConfirmreplace,
GetContextTitle(Element)+' already contains the help:'+#13
+ShortDescr,
mtConfirmation,[mrYes,lisCodeHelpReplaceButton,mrCancel],0)<>mrYes then exit;
end;
end;
end else begin
// there is more than one candidate
// => ask which one to replace
FPDocSelectInheritedDlg:=TFPDocSelectInheritedDlg.Create(nil);
FPDocSelectInheritedDlg.InheritedComboBox.Items.Clear;
for i:=0 to Candidates.Count-1 do begin
Element:=TCodeHelpElement(Candidates[i]);
FPDocSelectInheritedDlg.InheritedComboBox.Items.Add(
GetContextTitle(Element));
end;
if FPDocSelectInheritedDlg.ShowModal<>mrOk then exit;
i:=FPDocSelectInheritedDlg.InheritedComboBox.ItemIndex;
if i<0 then exit;
Element:=TCodeHelpElement(Candidates[i]);
end;
// move the content of the current entry to the inherited entry
MoveToInherited(Element);
finally
FPDocSelectInheritedDlg.Free;
Candidates.Free;
end;
end;
procedure TFPDocEditor.PageControlChange(Sender: TObject);
begin
UpdateButtons;
end;
procedure TFPDocEditor.SaveButtonClick(Sender: TObject);
begin
Save;
end;
procedure TFPDocEditor.ShortEditEditingDone(Sender: TObject);
begin
if ShortEdit.Text<>FOldVisualValues[fpdiShort] then
Modified:=true;
end;
function TFPDocEditor.GetContextTitle(Element: TCodeHelpElement): string;
// get codetools path. for example: TButton.Align
begin
Result:='';
if Element=nil then exit;
Result:=Element.ElementName;
end;
function TFPDocEditor.GetDoc: TXMLdocument;
begin
if DocFile<>nil then
Result:=DocFile.Doc
else
Result:=nil;
end;
function TFPDocEditor.GetDocFile: TLazFPDocFile;
begin
Result:=nil;
if fChain=nil then exit;
Result:=fChain.DocFile;
end;
function TFPDocEditor.GetSourceFilename: string;
begin
Result:=fSourceFilename;
end;
procedure TFPDocEditor.UpdateCaption;
var
strCaption: String;
Filename: String;
begin
if fUpdateLock>0 then begin
Include(FFlags,fpdefCaptionNeedsUpdate);
exit;
end;
Exclude(FFlags,fpdefCaptionNeedsUpdate);
{$IFDEF VerboseCodeHelp}
DebugLn(['TFPDocEditForm.UpdateCaption START']);
{$ENDIF}
strCaption := lisCodeHelpMainFormCaption + ' - ';
if (fChain <> nil) and (fChain.Count>0) then
strCaption := strCaption + GetContextTitle(fChain[0]) + ' - '
else
strCaption := strCaption + lisCodeHelpNoTagCaption + ' - ';
if DocFile<>nil then begin
Filename:=DocFile.Filename;
if (LazarusIDE.ActiveProject<>nil) then
LazarusIDE.ActiveProject.ShortenFilename(Filename);
Caption := strCaption + Filename;
end else
Caption := strCaption + lisCodeHelpNoTagCaption;
{$IFDEF VerboseCodeHelp}
DebugLn(['TLazDocForm.UpdateCaption ',Caption]);
{$ENDIF}
end;
procedure TFPDocEditor.UpdateValueControls;
var
Element: TCodeHelpElement;
begin
if fUpdateLock>0 then begin
Include(FFlags,fpdefValueControlsNeedsUpdate);
exit;
end;
Exclude(FFlags,fpdefValueControlsNeedsUpdate);
{$IFDEF VerboseCodeHelp}
DebugLn(['TFPDocEditForm.UpdateValueControls START']);
{$ENDIF}
Element:=nil;
if (fChain<>nil) and (fChain.Count>0) then
Element:=fChain[0];
LoadGUIValues(Element);
SaveButton.Enabled:=FModified;
end;
procedure TFPDocEditor.UpdateInheritedControls;
var
i: LongInt;
Element: TCodeHelpElement;
ShortDescr: String;
begin
if fUpdateLock>0 then begin
Include(FFlags,fpdefInheritedControlsNeedsUpdate);
exit;
end;
Exclude(FFlags,fpdefInheritedControlsNeedsUpdate);
{$IFDEF VerboseCodeHelp}
DebugLn(['TFPDocEditForm.UpdateInheritedControls START']);
{$ENDIF}
i:=FindInheritedIndex;
if i<0 then begin
InheritedShortEdit.Text:='';
InheritedShortEdit.Enabled:=false;
InheritedShortLabel.Caption:=lisCodeHelpnoinheriteddescriptionfound;
end else begin
Element:=fChain[i];
ShortDescr:=Element.FPDocFile.GetValueFromNode(Element.ElementNode,fpdiShort);
InheritedShortEdit.Text:=ShortDescr;
InheritedShortEdit.Enabled:=true;
InheritedShortLabel.Caption:=lisCodeHelpShortdescriptionOf+' '
+GetContextTitle(Element);
end;
MoveToInheritedButton.Enabled:=(fChain<>nil)
and (fChain.Count>1)
and (ShortEdit.Text<>'');
CopyFromInheritedButton.Enabled:=(i>=0);
AddLinkToInheritedButton.Enabled:=(i>=0);
end;
procedure TFPDocEditor.UpdateChain;
var
Code: TCodeBuffer;
LDResult: TCodeHelpParseResult;
NewChain: TCodeHelpElementChain;
CacheWasUsed: Boolean;
begin
FreeAndNil(fChain);
if fUpdateLock>0 then begin
Include(FFlags,fpdefChainNeedsUpdate);
exit;
end;
Exclude(FFlags,fpdefChainNeedsUpdate);
if (fSourceFilename='') or (CaretXY.X<1) or (CaretXY.Y<1) then exit;
{$IFDEF VerboseCodeHelp}
DebugLn(['TFPDocEditForm.UpdateChain START ',fSourceFilename,' ',dbgs(CaretXY)]);
{$ENDIF}
NewChain:=nil;
try
// fetch pascal source
Code:=CodeToolBoss.LoadFile(fSourceFilename,true,false);
if Code=nil then begin
DebugLn(['TFPDocEditForm.UpdateChain failed loading ',fSourceFilename]);
exit;
end;
// start getting the lazdoc element chain
LDResult:=CodeHelpBoss.GetElementChain(Code,CaretXY.X,CaretXY.Y,true,
NewChain,CacheWasUsed);
case LDResult of
chprParsing:
begin
Include(FFlags,fpdefChainNeedsUpdate);
DebugLn(['TFPDocEditForm.UpdateChain ToDo: still parsing LazDocBoss.GetElementChain for ',fSourceFilename,' ',dbgs(CaretXY)]);
exit;
end;
chprFailed:
begin
{$IFDEF VerboseLazDocFails}
DebugLn(['TFPDocEditForm.UpdateChain failed LazDocBoss.GetElementChain for ',fSourceFilename,' ',dbgs(CaretXY)]);
{$ENDIF}
exit;
end;
else
{$IFDEF VerboseCodeHelp}
NewChain.WriteDebugReport;
{$ENDIF}
fChain:=NewChain;
NewChain:=nil;
end;
finally
NewChain.Free;
end;
end;
procedure TFPDocEditor.OnLazDocChanging(Sender: TObject;
LazDocFPFile: TLazFPDocFile);
begin
if fpdefWriting in FFlags then exit;
if (fChain<>nil) and (fChain.IndexOfFile(LazDocFPFile)>=0) then
InvalidateChain;
end;
procedure TFPDocEditor.OnLazDocChanged(Sender: TObject;
LazDocFPFile: TLazFPDocFile);
begin
if fpdefWriting in FFlags then exit;
end;
procedure TFPDocEditor.LoadGUIValues(Element: TCodeHelpElement);
var
EnabledState: Boolean;
OldModified: Boolean;
begin
OldModified:=FModified;
EnabledState := (Element<>nil) and (Element.ElementNode<>nil);
CreateButton.Enabled := (Element<>nil) and (Element.ElementNode=nil)
and (Element.ElementName<>'');
if EnabledState then
begin
FOldValues:=Element.FPDocFile.GetValuesFromNode(Element.ElementNode);
FOldVisualValues[fpdiShort]:=ReplaceLineEndings(FOldValues[fpdiShort],'');
FOldVisualValues[fpdiElementLink]:=ConvertLineEndings(FOldValues[fpdiElementLink]);
FOldVisualValues[fpdiDescription]:=ConvertLineEndings(FOldValues[fpdiDescription]);
FOldVisualValues[fpdiErrors]:=ConvertLineEndings(FOldValues[fpdiErrors]);
FOldVisualValues[fpdiSeeAlso]:=ConvertLineEndings(FOldValues[fpdiSeeAlso]);
FOldVisualValues[fpdiExample]:=ConvertLineEndings(FOldValues[fpdiExample]);
DebugLn(['TFPDocEditor.LoadGUIValues Short="',dbgstr(FOldValues[fpdiShort]),'"']);
LinkListBox.Items.Text := FOldVisualValues[fpdiSeeAlso];
LinkIdComboBox.Text := '';
LinkTextEdit.Clear;
end
else
begin
FOldVisualValues[fpdiShort]:=lisCodeHelpNoDocumentation;
FOldVisualValues[fpdiElementLink]:=lisCodeHelpNoDocumentation;
FOldVisualValues[fpdiDescription]:=lisCodeHelpNoDocumentation;
FOldVisualValues[fpdiErrors]:=lisCodeHelpNoDocumentation;
FOldVisualValues[fpdiSeeAlso]:=lisCodeHelpNoDocumentation;
FOldVisualValues[fpdiExample]:=lisCodeHelpNoDocumentation;
LinkIdComboBox.Text := lisCodeHelpNoDocumentation;
LinkTextEdit.Text := lisCodeHelpNoDocumentation;
LinkListBox.Clear;
end;
ShortEdit.Text := FOldVisualValues[fpdiShort];
LinkEdit.Text := FOldVisualValues[fpdiElementLink];
DescrMemo.Lines.Text := FOldVisualValues[fpdiDescription];
ErrorsMemo.Lines.Text := FOldVisualValues[fpdiErrors];
ExampleEdit.Text := FOldVisualValues[fpdiExample];
ShortEdit.Enabled := EnabledState;
LinkEdit.Enabled := EnabledState;
DescrMemo.Enabled := EnabledState;
ErrorsMemo.Enabled := EnabledState;
LinkIdComboBox.Enabled := EnabledState;
LinkTextEdit.Enabled := EnabledState;
LinkListBox.Enabled := EnabledState;
AddLinkButton.Enabled := EnabledState;
DeleteLinkButton.Enabled := EnabledState;
ExampleEdit.Enabled := EnabledState;
BrowseExampleButton.Enabled := EnabledState;
FModified:=OldModified;
end;
procedure TFPDocEditor.MoveToInherited(Element: TCodeHelpElement);
var
Values: TFPDocElementValues;
begin
Values:=GetGUIValues;
WriteNode(Element,Values,true);
end;
procedure TFPDocEditor.AddSeeAlsoLink(Link, LinkTitle: string);
var
s: String;
begin
DebugLn(['TFPDocEditor.AddSeeAlsoLink Link="',Link,'" LinkTitle="',LinkTitle,'"']);
if FindSeeAlsoLink(Link)>=0 then exit;
s:='<link id="'+Link+'"';
if LinkTitle<>'' then begin
s:=s+'>'+LinkTitle+'</link';
end else begin
s:=s+'/>';
end;
DebugLn(['TFPDocEditor.AddSeeAlsoLink Adding: ',s]);
LinkListBox.Items.Add(s);
Modified:=true;
end;
function TFPDocEditor.FindSeeAlsoLink(Link: string): integer;
var
LinkTag: string;
ID: string;
Element: TCodeHelpElement;
ExpandedLink: String;
ExpandedID: String;
Title: string;
begin
ExpandedLink:='';
Result:=LinkListBox.Items.Count-1;
while (Result>=0) do begin
LinkTag:=LinkListBox.Items[Result];
if ExtractIDFromLinkTag(LinkTag,ID,Title) then begin
// check absolute: ID=Link
if SysUtils.CompareText(ID,Link)=0 then
exit;
// check relative
if (System.Pos(Link,'.')>0) and (ID<>'') then begin
if (fChain<>nil) and (fChain.Count>0) then begin
Element:=fChain[0];
if (ExpandedLink='') then begin
ExpandedLink:=CodeHelpBoss.ExpandFPDocLinkID(Link,
Element.ElementUnitName,Element.ElementOwnerName);
end;
ExpandedID:=CodeHelpBoss.ExpandFPDocLinkID(ID,
Element.ElementUnitName,Element.ElementOwnerName);
if SysUtils.CompareText(ExpandedID,ExpandedLink)=0 then
exit;
end;
end;
end;
dec(Result);
end;
end;
function TFPDocEditor.ExtractIDFromLinkTag(const LinkTag: string; out ID, Title: string
): boolean;
// extract id and title from example:
// <link id="TCustomControl"/>
// <link id="#lcl.Graphics.TCanvas">TCanvas</link>
var
StartPos: Integer;
EndPos: LongInt;
begin
Result:=false;
ID:='';
Title:='';
StartPos:=length('<link id="')+1;
if copy(LinkTag,1,StartPos-1)<>'<link id="' then
exit;
EndPos:=StartPos;
while (EndPos<=length(LinkTag)) do begin
if LinkTag[EndPos]='"' then begin
ID:=copy(LinkTag,StartPos,EndPos-StartPos);
Title:='';
Result:=true;
// extract title
StartPos:=EndPos;
while (StartPos<=length(LinkTag)) and (LinkTag[StartPos]<>'>') do inc(StartPos);
if LinkTag[StartPos-1]='\' then begin
// no title
end else begin
// has title
inc(StartPos);
EndPos:=StartPos;
while (EndPos<=length(LinkTag)) and (LinkTag[EndPos]<>'<') do inc(EndPos);
Title:=copy(LinkTag,StartPos,EndPos-StartPos);
end;
exit;
end;
inc(EndPos);
end;
end;
function TFPDocEditor.CreateElement(Element: TCodeHelpElement): Boolean;
var
NewElement: TCodeHelpElement;
begin
DebugLn(['TFPDocEditForm.CreateElement ']);
if (Element=nil) or (Element.ElementName='') then exit(false);
NewElement:=nil;
Include(FFlags,fpdefWriting);
try
Result:=CodeHelpBoss.CreateElement(Element.CodeXYPos.Code,
Element.CodeXYPos.X,Element.CodeXYPos.Y,NewElement);
finally
Exclude(FFlags,fpdefWriting);
NewElement.Free;
end;
Reset;
InvalidateChain;
end;
procedure TFPDocEditor.UpdateButtons;
var
HasEdit: Boolean;
begin
HasEdit:=(PageControl.ActivePage = ShortTabSheet)
or (PageControl.ActivePage = DescrTabSheet)
or (PageControl.ActivePage = ErrorsTabSheet);
BoldFormatButton.Enabled:=HasEdit;
ItalicFormatButton.Enabled:=HasEdit;
UnderlineFormatButton.Enabled:=HasEdit;
InsertCodeTagButton.Enabled:=HasEdit;
InsertLinkSpeedButton.Enabled:=HasEdit;
InsertParagraphSpeedButton.Enabled:=HasEdit;
InsertRemarkButton.Enabled:=HasEdit;
InsertVarTagButton.Enabled:=HasEdit;
end;
function TFPDocEditor.GetCurrentUnitName: string;
begin
if (fChain<>nil) and (fChain.Count>0) then
Result:=fChain[0].ElementUnitName
else
Result:='';
end;
function TFPDocEditor.GetCurrentModuleName: string;
begin
if (fChain<>nil) and (fChain.Count>0) then
Result:=fChain[0].ElementOwnerName
else
Result:='';
end;
procedure TFPDocEditor.Reset;
begin
FreeAndNil(fChain);
// clear all element editors/viewers
ShortEdit.Clear;
LinkEdit.Clear;
DescrMemo.Clear;
ErrorsMemo.Clear;
LinkIdComboBox.Text := '';
LinkTextEdit.Clear;
LinkListBox.Clear;
ExampleEdit.Clear;
Modified := False;
CreateButton.Enabled:=false;
end;
procedure TFPDocEditor.InvalidateChain;
begin
FreeAndNil(fChain);
FFlags:=FFlags+[fpdefCodeCacheNeedsUpdate,fpdefChainNeedsUpdate,
fpdefCaptionNeedsUpdate,fpdefValueControlsNeedsUpdate,
fpdefInheritedControlsNeedsUpdate,fpdefLinkIDComboNeedsUpdate];
end;
procedure TFPDocEditor.UpdateFPDocEditor(const SrcFilename: string;
const Caret: TPoint);
var
NewSrcFilename: String;
begin
// save the current changes to documentation
Save;
// check if visible
if not Visible then exit;
NewSrcFilename:=CleanAndExpandFilename(SrcFilename);
if (NewSrcFilename=SourceFilename) and (CompareCaret(Caret,CaretXY)=0)
and (fChain<>nil) and fChain.IsValid
and (not LazarusIDE.NeedSaveSourceEditorChangesToCodeCache(-1)) then
exit;
FCaretXY:=Caret;
fSourceFilename:=NewSrcFilename;
Reset;
InvalidateChain;
end;
procedure TFPDocEditor.BeginUpdate;
begin
inc(fUpdateLock);
end;
procedure TFPDocEditor.EndUpdate;
begin
dec(fUpdateLock);
if fUpdateLock<0 then RaiseGDBException('');
if fUpdateLock=0 then begin
if fpdefCaptionNeedsUpdate in FFlags then UpdateCaption;
end;
end;
procedure TFPDocEditor.ClearEntry(DoSave: Boolean);
begin
Modified:=true;
ShortEdit.Text:='';
DescrMemo.Text:='';
ErrorsMemo.Text:='';
LinkListBox.Items.Clear;
ExampleEdit.Text:='';
if DoSave then Save;
end;
procedure TFPDocEditor.Save;
var
Values: TFPDocElementValues;
begin
if not FModified then Exit; // nothing changed => exit
FModified:=false;
if (fChain=nil) or (fChain.Count=0) then exit;
if not fChain.IsValid then exit;
Values:=GetGUIValues;
if not WriteNode(fChain[0],Values,true) then begin
DebugLn(['TLazDocForm.Save FAILED']);
end else begin
FModified := False;
end;
SaveButton.Enabled:=false;
end;
function TFPDocEditor.GetGUIValues: TFPDocElementValues;
var
i: TFPDocItem;
begin
Result[fpdiShort]:=ShortEdit.Text;
Result[fpdiDescription]:=DescrMemo.Text;
Result[fpdiErrors]:=ErrorsMemo.Text;
Result[fpdiSeeAlso]:=LinkListBox.Items.Text;
Result[fpdiExample]:=ExampleEdit.Text;
Result[fpdiElementLink]:=LinkEdit.Text;
for i:=Low(TFPDocItem) to High(TFPDocItem) do
if Result[i]=lisCodeHelpNoDocumentation then
Result[i]:='';
end;
procedure TFPDocEditor.SetModified(const AValue: boolean);
begin
if FModified=AValue then exit;
FModified:=AValue;
SaveButton.Enabled:=FModified;
end;
function TFPDocEditor.WriteNode(Element: TCodeHelpElement;
Values: TFPDocElementValues; Interactive: Boolean): Boolean;
var
TopNode: TDOMNode;
CurDocFile: TLazFPDocFile;
CurDoc: TXMLDocument;
function Check(Test: boolean; const Msg: string): Boolean;
var
CurName: String;
begin
Result:=Test;
if not Test then exit;
DebugLn(['TLazDocForm.WriteNode ERROR ',Msg]);
if Interactive then begin;
if Element.FPDocFile<>nil then
CurName:=Element.FPDocFile.Filename
else
CurName:=Element.ElementName;
MessageDlg('Write error',
'Error writing "'+CurName+'"'#13
+Msg,mtError,[mbCancel],0);
end;
end;
begin
Result:=false;
if fpdefWriting in FFlags then begin
DebugLn(['TFPDocEditForm.WriteNode inconsistency detected: recursive write']);
exit;
end;
if Check(Element=nil,'Element=nil') then exit;
CurDocFile:=Element.FPDocFile;
if Check(CurDocFile=nil,'Element.FPDocFile=nil') then begin
// no fpdoc file found
DebugLn(['TFPDocEditForm.WriteNode TODO: implement creating new fpdoc file']);
exit;
end;
CurDoc:=CurDocFile.Doc;
if Check(CurDoc=nil,'Element.FPDocFile.Doc=nil') then exit;
if Check(not Element.ElementNodeValid,'not Element.ElementNodeValid') then exit;
TopNode:=Element.ElementNode;
if Check(TopNode=nil,'TopNode=nil') then begin
// no old node found
Check(false,'no old node found. TODO: implement creating a new.');
Exit;
end;
Include(FFlags,fpdefWriting);
CurDocFile.BeginUpdate;
try
CurDocFile.SetChildValue(TopNode,'short',Values[fpdiShort]);
CurDocFile.SetChildValue(TopNode,'elementlink',Values[fpdiElementLink]);
CurDocFile.SetChildValue(TopNode,'descr',Values[fpdiDescription]);
CurDocFile.SetChildValue(TopNode,'errors',Values[fpdiErrors]);
CurDocFile.SetChildValue(TopNode,'seealso',Values[fpdiSeeAlso]);
CurDocFile.SetChildValue(TopNode,'example',Values[fpdiExample]);
finally
CurDocFile.EndUpdate;
fChain.MakeValid;
Exclude(FFlags,fpdefWriting);
end;
if CodeHelpBoss.SaveFPDocFile(CurDocFile)<>mrOk then begin
DebugLn(['TFPDocEditForm.WriteNode failed writing ',CurDocFile.Filename]);
exit;
end;
Result:=true;
end;
procedure TFPDocEditor.UpdateCodeCache;
begin
if fUpdateLock>0 then begin
Include(FFlags,fpdefCodeCacheNeedsUpdate);
exit;
end;
Exclude(FFlags,fpdefCodeCacheNeedsUpdate);
LazarusIDE.SaveSourceEditorChangesToCodeCache(-1);
end;
procedure TFPDocEditor.ErrorsMemoChange(Sender: TObject);
begin
if ErrorsMemo.Text<>FOldVisualValues[fpdiErrors] then
Modified:=true;
end;
procedure TFPDocEditor.ExampleEditChange(Sender: TObject);
begin
if ExampleEdit.Text<>FOldVisualValues[fpdiExample] then
Modified:=true;
end;
function TFPDocEditor.MakeLink: String;
begin
if Trim(LinkTextEdit.Text) = '' then
Result := '<link id="' + Trim(LinkIdComboBox.Text) + '"/>'
else
Result := '<link id="' + Trim(LinkIdComboBox.Text) + '">' +
LinkTextEdit.Text + '</link>';
end;
function TFPDocEditor.FindInheritedIndex: integer;
// returns Index in chain of an overriden Element with a short description
// returns -1 if not found
var
Element: TCodeHelpElement;
begin
if (fChain<>nil) then begin
Result:=1;
while (Result<fChain.Count) do begin
Element:=fChain[Result];
if (Element.ElementNode<>nil)
and (Element.FPDocFile.GetValueFromNode(Element.ElementNode,fpdiShort)<>'')
then
exit;
inc(Result);
end;
end;
Result:=-1;
end;
procedure TFPDocEditor.AddLinkButtonClick(Sender: TObject);
begin
if Trim(LinkIdComboBox.Text) <> '' then
begin
LinkListBox.Items.Add(MakeLink);
Modified := True;
end;
end;
procedure TFPDocEditor.LinkEditEditingDone(Sender: TObject);
begin
if LinkEdit.Text<>FOldVisualValues[fpdiElementLink] then
Modified:=true;
end;
procedure TFPDocEditor.AddLinkToInheritedButtonClick(Sender: TObject);
var
i: LongInt;
Element: TCodeHelpElement;
Link: String;
begin
i:=FindInheritedIndex;
if i<0 then exit;
//DebugLn(['TFPDocEditor.AddLinkToInheritedButtonClick ']);
Element:=fChain[i];
Link:=Element.ElementName;
if Element.ElementUnitName<>'' then begin
Link:=Element.ElementUnitName+'.'+Link;
if Element.ElementOwnerName<>'' then
Link:='#'+Element.ElementOwnerName+'.'+Link;
end;
if Link<>LinkEdit.Text then begin
LinkEdit.Text:=Link;
Modified:=true;
end;
end;
procedure TFPDocEditor.BrowseExampleButtonClick(Sender: TObject);
begin
if Doc=nil then exit;
if OpenDialog.Execute then
ExampleEdit.Text := SetDirSeparators(ExtractRelativepath(
ExtractFilePath(DocFile.Filename), OpenDialog.FileName));
end;
procedure TFPDocEditor.CopyFromInheritedButtonClick(Sender: TObject);
var
i: LongInt;
begin
i:=FindInheritedIndex;
if i<0 then exit;
DebugLn(['TFPDocEditForm.CopyFromInheritedButtonClick ']);
if ShortEdit.Text<>'' then begin
if QuestionDlg('Confirm replace',
GetContextTitle(fChain[0])+' already contains the help:'+#13
+ShortEdit.Text,
mtConfirmation,[mrYes,'Replace',mrCancel],0)<>mrYes then exit;
end;
LoadGUIValues(fChain[i]);
Modified:=true;
end;
procedure TFPDocEditor.CreateButtonClick(Sender: TObject);
begin
if (fChain=nil) or (fChain.Count=0) then exit;
CreateElement(fChain[0]);
end;
procedure TFPDocEditor.DeleteLinkButtonClick(Sender: TObject);
begin
if LinkListBox.ItemIndex >= 0 then begin
LinkListBox.Items.Delete(LinkListBox.ItemIndex);
DebugLn(['TFPDocEditForm.DeleteLinkButtonClick ']);
Modified := True;
end;
end;
procedure TFPDocEditor.DescrMemoChange(Sender: TObject);
begin
if DescrMemo.Text<>FOldVisualValues[fpdiDescription] then
Modified:=true;
end;
initialization
{$I lazdoc.lrs}
{$I fpdoceditwindow.lrs}
end.