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markdownviewer_src.pas
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markdownviewer_src.pas
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{
MDPad v1.1
by vhanla
-----------------
This is a desktop version of ShowDown port to javascript
Initial release
2012-06-06
+Everything in executable, no external html files
Changelog:
- 2018-09-23 v1.3.6
- Workaround to borderstyle changing in order to restore WebViewer
- 2018-09-22 v1.3.5
- Migrated code to FreePascal
- Replaced BCEditor with ATSynEdit
- Alternative HTML rendering using HTMLViewer CrossPlatform HTML 4.01 compliant
- Kept ActiveX MSHTML as main rendering on Windows
- 2017-09-30 v1.3.4
- Updated BCEditor
- 2016-07-07 v1.3.3
- Added support for custom theme, css and markdown syntax
- 2016-07-06 v1.3.2
- Fixed erronous method to load markdown files to the new engines
- Fixed error of wordwrap bceditor show (F7) if document was hidden before
and in different width size
// let's disable wordwrap first, otherwise BCEditor will raise error
// it might have to do with resizing width while wordwrap, weird
- Fixed incorrect initialization of textBuffer := BCEditor1.Text; since on
FormCreate wasn't considered, hence Closing, New o Opening was showing that
editor was modified
- 2016-07-02 v1.3.1
Added Native Markdown processor thanks to
Delphi-Markdown - Pavel Stugel
- 2016-07-01 v1.3
Replaced Memo with BCEdit to offer syntax highlighting
Overrided TBCEditor procedure WMContextMenu(var Message: TWMContextMenu); message WM_CONTEXTMENU;
procedure MouseUp(AButton: TMouseButton; AShift: TShiftState; X, Y: Integer); override;
to make popup menu work, like notepad's, but no IME and RTL option available on this editor
- 2013-05-19 v1.2
Added more other engines to render MD
MarkdownJS and Marked but needs updating Pagedown
- 2012-06-10 v1.1
Renamed to MDPad since MarkDownPad already exists :(
Status bar
Wordwrap
Sync Editor with Preview
Save to ini
Fixed arrow navitagion on twebbrowser
UTF-8 Encoding support to tmemo
Division by zero bug fixed for sync
Left trying to improve preview time, automatically swtich to slow delay mode if bigger text opened,
not optimized for pasting on new editions. yet :P
Saves window size
html preview zoom
- 2012-06-08
Fixed onfocus event to focus webbrowser after returning to this app it lost focus
Added find text option, not well done yet
- 2012-06-07
Initial release
}
unit markdownviewer_src;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics,
Controls, Forms, Dialogs, StdCtrls,
Menus, ExtCtrls, ComCtrls, ActiveXContainer, MSHTML_4_0_TLB,
markdownprocessor, SHDocVw_1_1_TLB, ATSynEdit, UExceptionLogger;
type
TBCEditor = class(ATSynEdit.TATSynEdit)
procedure WMContextMenu(var Message: TWMContextMenu); message WM_CONTEXTMENU;
// procedure MouseUp(AButton: TMouseButton; AShift: TShiftState; X, Y: Integer); override;
protected
function GetSelLength: Integer; virtual;
function GetSelStart: Integer;
procedure SetSelLength(const Value: Integer);
procedure SetSelStart(const Value: Integer);
public
property SelLength: Integer read GetSelLength write SetSelLength;
property SelStart: Integer read GetSelStart write SetSelStart;
end;
{ TWebBrowser }
TWebBrowser = class(SHDocVw_1_1_TLB.TEvsWebBrowser)
procedure CNChar(var Message: TWMChar);message CN_CHAR;
public
constructor Create(TheOwner: TComponent); override;
destructor Destroy; override;
end;
type
{ TForm1 }
TForm1 = class(TForm)
ExceptionLogger1: TExceptionLogger;
OpenDialog1: TOpenDialog;
MainMenu1: TMainMenu;
File1: TMenuItem;
New1: TMenuItem;
Open1: TMenuItem;
Save1: TMenuItem;
Saveas1: TMenuItem;
N1: TMenuItem;
Pageconfig1: TMenuItem;
Print1: TMenuItem;
N2: TMenuItem;
Exit1: TMenuItem;
N3: TMenuItem;
About1: TMenuItem;
View1: TMenuItem;
EditorandResult1: TMenuItem;
Editoronly1: TMenuItem;
Resultonly1: TMenuItem;
FullScreen1: TMenuItem;
N5: TMenuItem;
SaveDialog1: TSaveDialog;
Splitter1: TSplitter;
PrintPreview1: TMenuItem;
TrackBar1: TTrackBar;
tmrHiddenElements: TTimer;
Preferences1: TMenuItem;
N4: TMenuItem;
Registerfilestoopenwith1: TMenuItem;
Edit1: TMenuItem;
SelectAll1: TMenuItem;
FontDialog1: TFontDialog;
Format1: TMenuItem;
Font1: TMenuItem;
N6: TMenuItem;
Undo1: TMenuItem;
N7: TMenuItem;
Cut1: TMenuItem;
Paste1: TMenuItem;
Copy1: TMenuItem;
N8: TMenuItem;
Helponline1: TMenuItem;
ExportHTML1: TMenuItem;
tmrKeyEvent: TTimer;
FindDialog1: TFindDialog;
N9: TMenuItem;
Find1: TMenuItem;
Waitafewsecondsbeforeupdatingthepreview1: TMenuItem;
StatusBar1: TStatusBar;
Wordwrap1: TMenuItem;
Statusbar2: TMenuItem;
N10: TMenuItem;
tmrScrollSyncer: TTimer;
Synceditwithpreview1: TMenuItem;
Engines1: TMenuItem;
engPageDown: TMenuItem;
engMarkDownJS: TMenuItem;
engMarked: TMenuItem;
engShowDown: TMenuItem;
engMarkdownit: TMenuItem;
engNative: TMenuItem;
mnuSyntax: TMenuItem;
mnuTheme: TMenuItem;
mnuCSS: TMenuItem; procedure FormCreate(Sender: TObject);
procedure FormMouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
procedure FormKeyPress(Sender: TObject; var Key: Char);
procedure Open1Click(Sender: TObject);
procedure Exit1Click(Sender: TObject);
procedure About1Click(Sender: TObject);
procedure New1Click(Sender: TObject);
procedure WebBrowser1BeforeNavigate2(ASender: TObject;pDisp:IDispatch;var URL:OleVariant;var Flags:OleVariant;var TargetFrameName:OleVariant;var PostData:OleVariant;var Headers:OleVariant;var Cancel:WordBool);
procedure FullScreen1Click(Sender: TObject);
procedure EditorandResult1Click(Sender: TObject);
procedure Editoronly1Click(Sender: TObject);
procedure Resultonly1Click(Sender: TObject);
procedure Pageconfig1Click(Sender: TObject);
procedure Print1Click(Sender: TObject);
procedure PrintPreview1Click(Sender: TObject);
procedure FormResize(Sender: TObject);
procedure Splitter1Moved(Sender: TObject);
procedure TrackBar1Change(Sender: TObject);
procedure tmrHiddenElementsTimer(Sender: TObject);
procedure Registerfilestoopenwith1Click(Sender: TObject);
procedure WebBrowser1DocumentComplete(Sender: TObject;pDisp:IDispatch;var URL:OleVariant);
procedure Save1Click(Sender: TObject);
procedure Saveas1Click(Sender: TObject);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure FormShow(Sender: TObject);
procedure SelectAll1Click(Sender: TObject);
procedure Font1Click(Sender: TObject);
procedure Undo1Click(Sender: TObject);
procedure Cut1Click(Sender: TObject);
procedure Copy1Click(Sender: TObject);
procedure Paste1Click(Sender: TObject);
procedure Helponline1Click(Sender: TObject);
procedure ExportHTML1Click(Sender: TObject);
procedure Find1Click(Sender: TObject);
procedure FindDialog1Find(Sender: TObject);
procedure tmrKeyEventTimer(Sender: TObject);
procedure Waitafewsecondsbeforeupdatingthepreview1Click(Sender: TObject);
procedure Statusbar2Click(Sender: TObject);
procedure Wordwrap1Click(Sender: TObject);
procedure tmrScrollSyncerTimer(Sender: TObject);
procedure Synceditwithpreview1Click(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure BCEditor1Change(Sender: TObject);
procedure BCEditor1DblClick(Sender: TObject);
procedure BCEditor1KeyDown(Sender: TObject; var Key: Word;
Shift: TShiftState);
procedure BCEditor1KeyUp(Sender: TObject; var Key: Word;
Shift: TShiftState);
procedure ToggleEngine(Sender: TObject);
procedure mnuSyntaxClick(Sender: TObject);
procedure mnuThemeClick(Sender: TObject);
procedure mnuCSSClick(Sender: TObject);
procedure BCEditor1CaretChanged(ASender: TObject; ACaretPos: TPoint);
private
TrackBar1_Position:integer;
SelectedEngine: Integer;
{ Private declarations }
procedure ToggleFullScreen;
procedure OpenMDFile(const fn: string);
procedure OnFocus(Sender: TObject);
procedure UpdateResult;
// procedure ScrollWheel(var Msg: TMessage);
procedure SyncScrolling;
procedure SaveINI;
procedure LoadINI;
procedure UpdateEngineInMenu;
procedure LoadEngine(const DefaultText: string = '');
procedure CMDialogKey(var Message: TCMDialogKey); message CM_DIALOGKEY;
//procedure WMContextMenu(var message: TWMContextMenu); message WM_CONTEXTMENU;
public
{ Public declarations }
end;
type
Comodin=class(TControl); //for scrolling
const
mdPAGEDOWN = 1;
mdMARKDOWNJS = 2;
mdMARKED = 3;
mdSHOWDOWN = 4;
mdMARKDOWNIT = 5;
mdNATIVE = 6;
const
DELAYTIME = 10;
var
Form1: TForm1;
BCEditor1: TBCEditor;
BrowserContainer: TActiveXContainer;
Browser: TWebBrowser;
PrevWindowState: TWindowState;
CurrentFile: string;
PreviewCSS: string;
textBuffer: widestring;
//para mantener el aspecto al redimensionar
ViewersRatio: integer;
ReadingFromExplorer: Boolean=False;
ReloadingEngine: Boolean=False;
Tryingtoclose: Boolean = False;
SyncPercentage: integer;
FSelPos: Integer;//for find dialog
TDelay: Integer=DELAYTIME; //10 seconds before update changes
needtodelay: boolean = false; //when bigger files are opened we force to slow down
// URLMON para quitar el feo sonido al iniciar cada enlace
const
SET_FEATURE_ON_PROCESS = $00000002;
FEATURE_DISABLE_NAVIGATION_SOUNDS = 21;
function CoInternetSetFeatureEnabled(FeatureEntry: DWORD; dwFlags: DWORD; fEnable: BOOL): HRESULT; stdcall; external 'urlmon.dll';
{$include pagedown.inc}
implementation
uses shellapi, activex, registry, inifiles;
{$R *.lfm}
procedure WBLoadHTML(WebBrowser: TWebBrowser; HTMLCode: string) ;
var
sl: TStringList;
ms: TMemoryStream;
url, vnil: OleVariant;
begin
url := UTF8Encode('about:blank');
vnil := NULL;
WebBrowser.ComServer.Navigate(url, vnil, vnil, vnil, vnil) ;
while WebBrowser.ComServer.ReadyState < READYSTATE_INTERACTIVE do
Application.ProcessMessages;
if Assigned(WebBrowser.ComServer.Document) then
begin
sl := TStringList.Create;
try
ms := TMemoryStream.Create;
try
sl.Text := HTMLCode;
sl.SaveToStream(ms) ;
ms.Seek(0, 0) ;
(WebBrowser.ComServer.Document as IPersistStreamInit).Load(TStreamAdapter.Create(ms)) ;
finally
ms.Free;
end;
finally
sl.Free;
end;
end;
end;
procedure TWebBrowser.CNChar(var Message: TWMChar);
begin
Message.Result:=0;
end;
constructor TWebBrowser.Create(TheOwner: TComponent);
begin
inherited Create(TheOwner);
end;
destructor TWebBrowser.Destroy;
begin
// if Assigned(Self) then FreeAndNil(Self);
inherited Destroy;
end;
function LoadFileToStr(const FileName: TFileName): String;
var LStrings: TStringList;
begin
LStrings := TStringList.Create;
try
LStrings.Loadfromfile(FileName);
Result := LStrings.text;
finally
FreeAndNil(LStrings);
end;
end;
procedure ExecuteScript(doc: IHTMLDocument2;script: string; language:string);
begin
if doc<>nil then
begin
if doc.parentWindow<>nil then
doc.parentWindow.execScript(script,olevariant(language));
end;
end;
function GetElementById(const Doc: IDispatch; const Id: string): IDispatch;
var
Document: IHTMLDocument2; // IHTMLDocument2 interface of Doc
Body: IHTMLElement2; // document body element
Tags: IHTMLElementCollection; // all tags in document body
Tag: IHTMLElement; // a tag in document body
I: Integer; // loops thru tags in document body
begin
Result := nil;
// Check for valid document: require IHTMLDocument2 interface to it
if not Supports(Doc, IHTMLDocument2, Document) then
raise Exception.Create('Invalid HTML document');
// Check for valid body element: require IHTMLElement2 interface to it
if not Supports(Document.body, IHTMLElement2, Body) then
raise Exception.Create('Can''t find <body> element');
// Get all tags in body element ('*' => any tag name)
Tags := Body.getElementsByTagName('*');
// Scan through all tags in body
for I := 0 to Pred(Tags.length) do
begin
// Get reference to a tag
Tag := Tags.item(I, EmptyParam) as IHTMLElement;
// Check tag's id and return it if id matches
if AnsiSameText(Tag.id, Id) then
begin
Result := Tag;
Break;
end;
end;
end;
procedure TForm1.About1Click(Sender: TObject);
begin
// ShellAbout(Handle, 'MDPad', 'MDPad v1.1 beta'#13'Written by vhanla - http://apps.codigobit.info', Application.Icon.Handle);
if FileExists(ExtractFilePath(ParamStr(0))+'Readme.md') then
begin
if MessageDlg(ABOUTMDPAD+#13#13'Want to read more about?',mtInformation, mbYesNo, 0) = mrYes then
ShellExecute(0, 'OPEN', PChar(ParamStr(0)),PChar(ExtractFilePath(ParamStr(0))+'Readme.md'),nil,SW_SHOWNORMAL);
end
else
MessageDlg(ABOUTMDPAD,mtInformation, [mbOK], 0);
end;
procedure TForm1.Copy1Click(Sender: TObject);
begin
if BCEditor1.GetSelLength > 0 then
BCEditor1.TextSelected; //CopyToClipboard;
end;
procedure TForm1.Cut1Click(Sender: TObject);
begin
if BCEditor1.GetSelLength > 0 then
BCEditor1.TextSelected; //CutToClipboard;
end;
procedure TForm1.EditorandResult1Click(Sender: TObject);
var
prevwas: boolean;
prevwrdwrp: boolean;
begin
prevwas:=EditorandResult1.Checked;
tmrHiddenElements.Enabled:=True;
Editoronly1.Checked:=False;
Resultonly1.Checked:=False;
EditorandResult1.Checked:=True;
BCEditor1.Visible:=True;
BCEditor1.Align:=alLeft;
BrowserContainer.Visible:=True;
BrowserContainer.Align:=alClient;
Splitter1.Enabled:=True;
// let's disable wordwrap first, otherwise BCEditor will raise error
// it might have to do with resizing width while wordwrap, weird
prevwrdwrp := BCEditor1.OptWrapIndented;
if prevwrdwrp then
BCEditor1.OptWrapIndented := False;
//let's use a variable to keep the position
// Memo1.Width:=ClientWidth div 2;
// WebBrowser1.Width:=ClientWidth div 2;
BCEditor1.Width:=Trunc(ViewersRatio/100*ClientWidth);
BrowserContainer.Width:=ClientWidth-BCEditor1.Width;
Splitter1.Left:=BrowserContainer.Left;
try
if not prevwas then
BCEditor1.SetFocus;
except
end;
if prevwrdwrp then
BCEditor1.OptWrapIndented:= prevwrdwrp;
end;
procedure TForm1.Editoronly1Click(Sender: TObject);
begin
tmrHiddenElements.Enabled:=False;
Editoronly1.Checked:=True;
Resultonly1.Checked:=False;
EditorandResult1.Checked:=False;
BCEditor1.Visible:=True;
BrowserContainer.Align:=alNone;
BCEditor1.Align:=alClient;
Splitter1.Enabled:=False;
BrowserContainer.Visible:=False;
//focus
BCEditor1.SetFocus;
end;
procedure TForm1.Registerfilestoopenwith1Click(Sender: TObject);
var
r: TRegistry;
begin
r:=TRegistry.Create;
try
r.RootKey:=HKEY_CURRENT_USER;
//first let's register the files
if r.OpenKey('\Software\Classes\.md',true) then
begin
r.WriteString('','MDPadFile');
r.WriteString('Content Type','text/plain');
r.CloseKey;
end;
if r.OpenKey('\Software\Classes\.mkd',true) then
begin
r.WriteString('','MDPadFile');
r.WriteString('Content Type','text/plain');
r.CloseKey;
end;
if r.OpenKey('\Software\Classes\.markdown',true) then
begin
r.WriteString('','MDPadFile');
r.WriteString('Content Type','text/plain');
r.CloseKey;
end;
//now let's create the file handler
if r.OpenKey('\Software\Classes\MDPadFile',true) then
begin
r.WriteString('','Mark Down Text');
r.CloseKey;
end;
if r.OpenKey('\Software\Classes\MDPadFile\DefaultIcon',true) then
begin
r.WriteString('',pchar(ExtractFilePath(ParamStr(0))+ExtractFileName(ParamStr(0))+',0'));
r.CloseKey;
end;
if r.OpenKey('\Software\Classes\MDPadFile\shell',true) then
begin
r.WriteString('','Open');
r.CloseKey;
end;
if r.OpenKey('\Software\Classes\MDPadFile\shell\Open',true) then
begin
r.WriteString('','Open');
r.CloseKey;
end;
if r.OpenKey('\Software\Classes\MDPadFile\shell\Open\command',true) then
begin
r.WriteString('',pchar('"'+ExtractFilePath(ParamStr(0))+ExtractFileName(ParamStr(0))+'" "%1"'));
r.CloseKey;
end;
finally
r.Free;
end;
end;
procedure TForm1.Resultonly1Click(Sender: TObject);
begin
tmrHiddenElements.Enabled:=True;
Editoronly1.Checked:=False;
Resultonly1.Checked:=True;
EditorandResult1.Checked:=False;
BCEditor1.Visible:=False;
BrowserContainer.Visible:=True;
Splitter1.Enabled:=False;
BCEditor1.Align:=alNone;
BrowserContainer.Align:=alClient;
//focus
// WebBrowser1.SetFocus;
//good tricks at http://stackoverflow.com/a/918869/537347
// i guess they copied from here http://www.swissdelphicenter.ch/torry/showcode.php?id=1940
with Browser.ComServer do
if Document <> nil then
with Application as IOleObject do
DoVerb(OLEIVERB_UIACTIVATE, nil, BrowserContainer, 0, Handle, GetClientRect);
end;
procedure TForm1.Save1Click(Sender: TObject);
begin
if (CurrentFile <> '') and (FileExists(CurrentFile)) then
begin
BCEditor1.SaveToFile(CurrentFile);
textBuffer:=BCEditor1.Text;
if Tryingtoclose then
close;
end
else begin
//save as
Saveas1Click(Sender);
end;
end;
procedure TForm1.Saveas1Click(Sender: TObject);
begin
//save as
begin
//this is a new edition
with SaveDialog1 do
begin
Filter:='MarkDown files|*.md;*.mkd;*.markdown|*.*|*.*';
if Execute then
begin
//chosen a filename
//but let's make sure the extensions is the correct one
// ShowMessage(ExtractFileExt(FileName));
if (ExtractFileExt(FileName) <>'.md')
and (ExtractFileExt(FileName) <>'.mkd')
and (ExtractFileExt(FileName) <>'.markdown')then
FileName:=FileName+'.md';
if FileExists(FileName) then
if MessageDlg('Overwrite existing file?',mtConfirmation,[mbyes,mbno],0)=mrNo then
exit;
//let's overwrite all
BCEditor1.SaveToFile(FileName);
CurrentFile:=FileName;
Caption:='MDPad - '+FileName;
textBuffer:=BCEditor1.Text;
if Tryingtoclose then
close;
end;
end;
end
end;
procedure TForm1.SelectAll1Click(Sender: TObject);
begin
//TMemo(Memo1).SelectAll;
//TBCEditor(BCEditor1).SelectAll;
BCEditor1.DoSelect_All;
end;
procedure TForm1.Splitter1Moved(Sender: TObject);
begin
ViewersRatio:=Trunc(BCEditor1.Width/ClientWidth*100);
end;
procedure TForm1.Statusbar2Click(Sender: TObject);
begin
StatusBar2.Checked:= not Statusbar2.Checked;
StatusBar1.Visible:=Statusbar2.Checked;
end;
procedure TForm1.UpdateEngineInMenu;
begin
//lets flush all
engMarkDownJS.Checked:=False;
engMarked.Checked:=False;
engPageDown.Checked:=False;
engShowDown.Checked := False;
engMarkdownit.Checked := False;
engNative.Checked := False;
case SelectedEngine of
mdPAGEDOWN: engPageDown.Checked := True;
mdMARKDOWNJS: engMarkDownJS.Checked := True;
mdMARKED: engMarked.Checked := True;
mdSHOWDOWN: engShowDown.Checked := True;
mdMARKDOWNIT: engMarkdownit.Checked := True;
mdNATIVE : engNative.Checked := True;
end;
end;
procedure TForm1.Exit1Click(Sender: TObject);
begin
close;
end;
procedure TForm1.ExportHTML1Click(Sender: TObject);
var
Rel: IHTMLElement;
HTMLText: TMemo;
begin
Rel:=GetElementById(Browser.ComServer.Document,'resultado') as IHTMLElement;
if Assigned(Rel) then
begin
//let's save it to disk
with SaveDialog1 do
begin
Filter:='HTML|*.html';
if FileExists(CurrentFile) then
FileName:=copy(ExtractFileName(CurrentFile),0,pos(ExtractFileExt(CurrentFile),ExtractFileName(CurrentFile)))+'html';
if Execute then
begin
//we have the name now
if FileExists(FileName) then
if MessageDlg('Overwrite existing file?',mtConfirmation,[mbYes, mbNo],0)=mrNo then
Exit;
//let's continue saving the file
HTMLText:=TMemo.Create(Self);
try
HTMLText.Text:='<!DOCTYPE html><html><head><title>MDPad Exported'
+#13' File</title><meta http-equiv="X-UA-Compatible" content="IE=9" ><meta charset="utf-8">'+CSS+'</head><body><div id="readme"><div class="md">'
+Rel.innerHTML+'</div></div><code>Created by <a href="http://apps.codigo'
+'bit.info/2012/06/markdown-pad-markdown-textfile-editor.html" target="_blank">MDPad v1.1</a> Thanks to <a href="https://code.google.com/p/pagedown/" target="_blank">Pagedown</a></code></body></html>';
//HTMLText.Lines.SaveToFile(FileName,TEncoding.UTF8);
HTMLText.Lines.SaveToFile(FileName);
//let's offer the change to open its folder
if MessageDlg('Exported successfully'#13'Would you like to open its location folder?',mtConfirmation,[mbYes,mbNo],0)=mrYes then
ShellExecute(GetDesktopWindow,'OPEN',pchar(ExtractFilePath(FileName)),nil,nil,SW_SHOW);
finally
HTMLText.Free;
end;
end;
end;
end;
end;
procedure TForm1.Find1Click(Sender: TObject);
begin
FSelPos:=0;
// FindDialog1.Execute;
BCEditor1.SelStart := 1;
BCEditor1.SelLength := 2;
BCEditor1.SetFocus;
end;
procedure TForm1.FindDialog1Find(Sender: TObject);
var
S : string;
startpos : integer;
begin
with TFindDialog(Sender) do
begin
{If the stored position is 0 this cannot be a find next. }
if FSelPos = 0 then
Options := Options - [frFindNext];
{ Figure out where to start the search and get the corresponding
text from the memo. }
if frfindNext in Options then
begin
{ This is a find next, start after the end of the last found word. }
StartPos := FSelPos + Length(Findtext);
S := Copy(BCEditor1.Text, StartPos, MaxInt);
end
else
begin
{ This is a find first, start at the, well, start. }
S := BCEditor1.Text;
//BCEditor1.SearchString := FindText;
StartPos := 1;
end;
{ Perform a global case-sensitive search for FindText in S }
FSelPos := Pos(FindText, S);
if FSelPos > 0 then
begin
{ Found something, correct position for the location of the start
of search. }
FSelPos := FSelPos + StartPos - 1;
BCEditor1.SelStart := FSelPos - 1;
BCEditor1.SelLength := Length(FindText);
BCEditor1.SetFocus;
//Memo1.SelStart := FSelPos - 1;
//Memo1.SelLength := Length(FindText);
//Memo1.SetFocus;
end
else
begin
{ No joy, show a message. }
if frfindNext in Options then
S := Concat('There are no further occurences of "', FindText,
'" in Editor.')
else
S := Concat('Could not find "', FindText, '" in Editor.');
MessageDlg(S, mtError, [mbOK], 0);
end;
end;
end;
procedure TForm1.Font1Click(Sender: TObject);
begin
FontDialog1.Font:=BCEditor1.Font;
if FontDialog1.Execute() then
begin
BCEditor1.Font:= FontDialog1.Font;
end;
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
var
confirm: Integer;
begin
Tryingtoclose:=true;
if textBuffer <> BCEditor1.Text then
begin
Action:=caNone;
confirm := MessageDlg('Your document has been modified'#13'Do you want to save those changes?',mtConfirmation,[mbYes,mbNo,mbCancel],0);
if confirm = mrYes then
Save1Click(sender)
else if confirm = mrNo then
Action:= caFree
else if confirm = mrCancel then
begin
Tryingtoclose := False;
Action:=caNone;
end;
end
else
begin
Action:=caFree;
end;
end;
procedure TForm1.FormCreate(Sender: TObject);
var
feditor: string;
st: TStringStream;
begin
Application.OnActivate:=OnFocus;
Caption := 'MDPad';
BCEditor1 := TBCEditor.Create(Self);
BCEditor1.SetParent(Self);
BCEditor1.OnChange := BCEditor1Change;
BCEditor1.OnDblClick := BCEditor1DblClick;
BCEditor1.OnKeyDown := BCEditor1KeyDown;
BCEditor1.OnKeyUp := BCEditor1KeyUp;
{{ BCEditor1.OnChangeCaretPos := BCEditor1CaretChanged;}
// memo1.Visible:=false;
////////////////// BCEditor1.ScrollBars:=ssBoth;
BCEditor1.OptWrapIndented := True;
// Form1.WindowProc:=ScrollWheel;
/// KeyPreview := True;
// SetPriorityClass(GetCurrentProcess, IDLE_PRIORITY_CLASS);
SetPriorityClass(GetCurrentProcess, $4000);//below normal al parecer mejor de IDLE
// Create WebBrowser instance
BrowserContainer := TActiveXContainer.Create(Self);
Browser := TWebBrowser.Create(Self);
//Browser.SetParentComponent(BrowserContainer);
Browser.OnBeforeNavigate2 := WebBrowser1BeforeNavigate2;
Browser.OnDocumentComplete := WebBrowser1DocumentComplete;
BrowserContainer.ComServer := Browser.ComServer;
BrowserContainer.Active := True;
BrowserContainer.Align := alClient;
//disable ugly sounds on internet explorer
CoInternetSetFeatureEnabled(FEATURE_DISABLE_NAVIGATION_SOUNDS, SET_FEATURE_ON_PROCESS, True);
//WebBrowser1.Silent := True;
Browser.ComServer.Set_Silent(True);
//let's load the mdeditor\index.html file
{feditor:= ExtractFilePath(ParamStr(0))+'somdeditor\index.html';
if FileExists(feditor) then
feditor:='file:///'+StringReplace(feditor,'\','/',[rfReplaceAll]);
WebBrowser1.Navigate(feditor);}//good offline tester
//WBLoadHTML(WebBrowser1, PAGEDOWN);
// we need to load the engine prior to update its markdown generated contens
WBLoadHTML(Browser, '');
//
ViewersRatio:= Trunc(BCEditor1.Width / ClientWidth * 100); //averiguamos el porcentaje que vale lo que ocupa memo1.width
Constraints.MinHeight:=200;
Constraints.MinWidth:=300;
//restore zoom of twebbrowser
// WebBrowser1.OleObject.Document.Body.Style.Zoom:=1.0;
//initialize position of our trackbar
TrackBar1.Left:=ClientWidth-TrackBar1.Width;
TrackBar1.Top:=ClientHeight-TrackBar1.Height;
// TrackBar1.Position:=2;
TrackBar1.Visible:=False;
Application.Title:='MDPad';
BCEditor1.Font.Name:='Consolas';
BCEditor1.Font.Size:=11;
BCEditor1.OptWrapIndented:= True;
LoadINI;
if mnuCSS.Checked then
begin
if FileExists(ExtractFilePath(ParamStr(0))+'Style.css') then
PreviewCSS := '<style type="text/css">'+ LoadFileToStr(ExtractFilePath(ParamStr(0))+'Style.css') +'</style></head>';
end
else
PreviewCSS := CSS;
//highlight color and editor color
if not mnuTheme.Checked then
begin
{{st := TStringStream.Create(DEFAULTTHEME);
try
BCEditor1.Highlighter.Colors.LoadFromStream(st);
finally
FreeAndNil(st);
end;}
end
else
begin
{{if FileExists(ExtractFilePath(ParamStr(0))+'Theme.json') then
BCEditor1.Highlighter.Colors.LoadFromFile(ExtractFilePath(ParamStr(0))+ 'Theme.json');}
end;
{{if mnuSyntax.Checked then
if FileExists(ExtractFilePath(ParamStr(0))+'Markdown.json') then
BCEditor1.Highlighter.LoadFromFile(ExtractFilePath(ParamStr(0))+'MarkDown.json');}
textBuffer := BCEditor1.Text;
// let's load the configured engine
LoadEngine;
CurrentFile:=''; //none
//let's open with explorer
if ParamCount>0 then
ReadingFromExplorer:=True
else
ReadingFromExplorer:=False;
end;
procedure TForm1.FormDestroy(Sender: TObject);
begin
//save ini settings
SaveINI;
BCEditor1.Text := '';
BCEditor1.Free;
FreeAndNil(Browser);
//Browser.Free;
BrowserContainer.Free;
end;
//thanks to http://beensoft.blogspot.com/2007/10/fooling-around-with-twebbrowser-4.html
procedure TForm1.FormKeyPress(Sender: TObject; var Key: Char);
begin
if Key = #13 then
begin
Key := #0;
keybd_event(VK_LCONTROL,0,0,0); //Ctrl key down
keybd_event(Ord('M'), MapVirtualKey(Ord('M'),0),0,0); // m key is down
//let's release those virtual keystrokes
keybd_event(Ord('M'), MapVirtualKey(Ord('M'),0),KEYEVENTF_KEYUP,0);
keybd_event(VK_LCONTROL,0,KEYEVENTF_KEYUP,0); //Ctrl key up
keybd_event(VK_CANCEL, 0,0,0);
end;
// if Key = #116 then
// WebBrowser1.Refresh;
end;
procedure TForm1.FormMouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
begin
ReleaseCapture;
Perform(WM_SYSCOMMAND, $F012, 0)
end;
procedure TForm1.FormResize(Sender: TObject);
begin
if EditorandResult1.Checked then
EditorandResult1Click(Sender);
TrackBar1.Left:=ClientWidth-TrackBar1.Width-32;
TrackBar1.Top:=ClientHeight-TrackBar1.Height;
end;
procedure TForm1.FormShow(Sender: TObject);
begin
if BCEditor1.Visible then
BCEditor1.SetFocus;
TrackBar1.Position:=TrackBar1_Position;
end;
procedure TForm1.FullScreen1Click(Sender: TObject);
begin
ToggleFullScreen;
end;
procedure TForm1.Helponline1Click(Sender: TObject);
begin
ShellExecute(GetDesktopWindow,'OPEN','http://daringfireball.net/projects/markdown/syntax',nil,nil,SW_SHOW);
end;
procedure TForm1.tmrHiddenElementsTimer(Sender: TObject);
var
p:TPoint;
begin
try
p:=ScreenToClient(mouse.CursorPos);
if (p.X > TrackBar1.Left) and (p.X< TrackBar1.Left+TrackBar1.Width)
and (p.Y > TrackBar1.Top) and (p.Y< TrackBar1.Top+TrackBar1.Height)
then
TrackBar1.Visible:=True
else
TrackBar1.Visible:=False;
//StatusBar1.Panels[0].Text:=IntToStr(TScrollbar(Memo1).Position);
except
end;
end;
procedure TForm1.tmrKeyEventTimer(Sender: TObject);
begin
if TDelay <= 1 then
begin
UpdateResult;
tmrKeyEvent.Enabled:=False;
TDelay:=DELAYTIME;
end
else dec(TDelay);
end;
procedure TForm1.ToggleFullScreen;
begin
{ TODO: Improve restoring size after fullscreen }
if BorderStyle = bsNone then
begin
//restore
FullScreen1.Checked:=False;
BrowserContainer.Active := False;