Files

372 lines
11 KiB
ObjectPascal

{-------------------------------------------------------------------------------
The contents of this file are subject to the Mozilla Public License
Version 1.1 (the "License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/
Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
the specific language governing rights and limitations under the License.
The Original Code is: frmMain.pas, released 2000-09-08.
The Original Code is part of the EditAppDemos project, written by
Michael Hieke for the SynEdit component suite.
All Rights Reserved.
Contributors to the SynEdit project are listed in the Contributors.txt file.
Alternatively, the contents of this file may be used under the terms of the
GNU General Public License Version 2 or later (the "GPL"), in which case
the provisions of the GPL are applicable instead of those above.
If you wish to allow use of your version of this file only under the terms
of the GPL and not to allow others to use your version of this file
under the MPL, indicate your decision by deleting the provisions above and
replace them with the notice and other provisions required by the GPL.
If you do not delete the provisions above, a recipient may use your version
of this file under either the MPL or the GPL.
$Id: frmMain.pas,v 1.2 2000/11/22 08:34:14 mghie Exp $
You may retrieve the latest version of this file at the SynEdit home page,
located at http://SynEdit.SourceForge.net
Known Issues:
-------------------------------------------------------------------------------}
unit frmMain;
{$I SynEdit.inc}
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
Menus, ActnList, uEditAppIntfs, ComCtrls;
type
TMainForm = class(TForm)
mnuMain: TMainMenu;
mFile: TMenuItem;
miFileExit: TMenuItem;
miFileNew: TMenuItem;
N1: TMenuItem;
mEdit: TMenuItem;
miFileOpen: TMenuItem;
miFileSave: TMenuItem;
miFileSaveAs: TMenuItem;
miFileClose: TMenuItem;
miEditUndo: TMenuItem;
miEditRedo: TMenuItem;
N2: TMenuItem;
miEditCut: TMenuItem;
miEditCopy: TMenuItem;
miEditPaste: TMenuItem;
miEditDelete: TMenuItem;
miEditSelectAll: TMenuItem;
N3: TMenuItem;
miEditFind: TMenuItem;
miEditFindNext: TMenuItem;
miEditFindPrev: TMenuItem;
miEditReplace: TMenuItem;
StatusBar: TStatusBar;
miViewStatusbar: TMenuItem;
mView: TMenuItem;
N4: TMenuItem;
mRecentFiles: TMenuItem;
miFileMRU5: TMenuItem;
miFileMRU4: TMenuItem;
miFileMRU3: TMenuItem;
miFileMRU2: TMenuItem;
miFileMRU1: TMenuItem;
N5: TMenuItem;
miFilePrint: TMenuItem;
actlStandard: TActionList;
actFileNew: TAction;
actFileOpen: TAction;
actFileExit: TAction;
actViewStatusbar: TAction;
actUpdateStatusBarPanels: TAction;
actFileCloseAll: TAction;
miFileCloseAll: TMenuItem;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure mFileClick(Sender: TObject);
procedure actFileNewOrOpenUpdate(Sender: TObject);
procedure actFileNewExecute(Sender: TObject);
procedure actFileOpenExecute(Sender: TObject);
procedure actFileExitExecute(Sender: TObject);
procedure mRecentFilesClick(Sender: TObject);
procedure actViewStatusbarUpdate(Sender: TObject);
procedure actViewStatusbarExecute(Sender: TObject);
procedure OnOpenMRUFile(Sender: TObject);
procedure actUpdateStatusBarPanelsUpdate(Sender: TObject);
procedure actFileCloseAllExecute(Sender: TObject);
procedure actFileCloseAllUpdate(Sender: TObject);
protected
fMRUItems: array[1..5] of TMenuItem;
function CanCloseAll: boolean;
function CmdLineOpenFiles(AMultipleFiles: boolean): boolean;
function DoCreateEditor(AFileName: string): IEditor; virtual;
procedure DoOpenFile(AFileName: string);
procedure ReadIniSettings;
procedure WriteIniSettings;
end;
implementation
{$R *.DFM}
uses
IniFiles, dmCommands;
{ TMainForm }
procedure TMainForm.FormCreate(Sender: TObject);
begin
fMRUItems[1] := miFileMRU1;
fMRUItems[2] := miFileMRU2;
fMRUItems[3] := miFileMRU3;
fMRUItems[4] := miFileMRU4;
fMRUItems[5] := miFileMRU5;
CommandsDataModule := TCommandsDataModule.Create(Self);
ReadIniSettings;
end;
procedure TMainForm.FormDestroy(Sender: TObject);
begin
if GI_EditorFactory <> nil then
GI_EditorFactory.CloseAll;
WriteIniSettings;
CommandsDataModule.Free;
end;
// implementation
function TMainForm.CanCloseAll: boolean;
begin
Result := TRUE;
end;
function TMainForm.CmdLineOpenFiles(AMultipleFiles: boolean): boolean;
var
i, Cnt: integer;
begin
Cnt := ParamCount;
if Cnt > 0 then begin
if not AMultipleFiles and (Cnt > 1) then
Cnt := 1;
for i := 1 to Cnt do
DoOpenFile(ParamStr(i));
Result := TRUE;
end else
Result := FALSE;
end;
function TMainForm.DoCreateEditor(AFileName: string): IEditor;
begin
Result := nil;
end;
procedure TMainForm.DoOpenFile(AFileName: string);
var
i: integer;
LEditor: IEditor;
begin
AFileName := ExpandFileName(AFileName);
if AFileName <> '' then begin
CommandsDataModule.RemoveMRUEntry(AFileName);
// activate the editor if already open
Assert(GI_EditorFactory <> nil);
for i := GI_EditorFactory.GetEditorCount - 1 downto 0 do begin
LEditor := GI_EditorFactory.Editor[i];
if CompareText(LEditor.GetFileName, AFileName) = 0 then begin
LEditor.Activate;
exit;
end;
end;
end;
// create a new editor, add it to the editor list, open the file
LEditor := DoCreateEditor(AFileName);
if LEditor <> nil then
LEditor.OpenFile(AFileName);
end;
procedure TMainForm.ReadIniSettings;
var
iniFile: TIniFile;
x, y, w, h: integer;
i: integer;
s: string;
begin
iniFile := TIniFile.Create(ChangeFileExt(Application.ExeName, '.ini'));
try
x := iniFile.ReadInteger('Main', 'Left', 0);
y := iniFile.ReadInteger('Main', 'Top', 0);
w := iniFile.ReadInteger('Main', 'Width', 0);
h := iniFile.ReadInteger('Main', 'Height', 0);
if (w > 0) and (h > 0) then
SetBounds(x, y, w, h);
if iniFile.ReadInteger('Main', 'Maximized', 0) <> 0 then
WindowState := wsMaximized;
StatusBar.Visible := iniFile.ReadInteger('Main', 'ShowStatusbar', 1) <> 0;
// MRU files
for i := 5 downto 1 do begin
s := iniFile.ReadString('MRUFiles', Format('MRUFile%d', [i]), '');
if s <> '' then
CommandsDataModule.AddMRUEntry(s);
end;
finally
iniFile.Free;
end;
end;
procedure TMainForm.WriteIniSettings;
var
iniFile: TIniFile;
wp: TWindowPlacement;
i: integer;
s: string;
begin
iniFile := TIniFile.Create(ChangeFileExt(Application.ExeName, '.ini'));
try
wp.length := SizeOf(TWindowPlacement);
GetWindowPlacement(Handle, @wp);
// form properties
with wp.rcNormalPosition do begin
iniFile.WriteInteger('Main', 'Left', Left);
iniFile.WriteInteger('Main', 'Top', Top);
iniFile.WriteInteger('Main', 'Width', Right - Left);
iniFile.WriteInteger('Main', 'Height', Bottom - Top);
end;
iniFile.WriteInteger('Main', 'Maximized', Ord(WindowState = wsMaximized));
iniFile.WriteInteger('Main', 'ShowStatusbar', Ord(Statusbar.Visible));
// MRU files
for i := 1 to 5 do begin
s := CommandsDataModule.GetMRUEntry(i - 1);
if s <> '' then
iniFile.WriteString('MRUFiles', Format('MRUFile%d', [i]), s)
else
iniFile.DeleteKey('MRUFiles', Format('MRUFile%d', [i]));
end;
finally
iniFile.Free;
end;
end;
// action handler methods
procedure TMainForm.actFileNewOrOpenUpdate(Sender: TObject);
begin
(Sender as TAction).Enabled := GI_EditorFactory <> nil;
end;
procedure TMainForm.actFileNewExecute(Sender: TObject);
begin
DoOpenFile('');
end;
procedure TMainForm.actFileOpenExecute(Sender: TObject);
begin
with CommandsDataModule.dlgFileOpen do begin
if Execute then
DoOpenFile(FileName);
end;
end;
procedure TMainForm.actFileCloseAllExecute(Sender: TObject);
var
i: integer;
begin
if GI_EditorFactory <> nil then begin
if not CanCloseAll then
exit;
i := GI_EditorFactory.GetEditorCount - 1;
// close all editor childs
while i >= 0 do begin
GI_EditorFactory.GetEditor(i).Close;
Dec(i);
end;
end;
end;
procedure TMainForm.actFileCloseAllUpdate(Sender: TObject);
begin
actFileCloseAll.Enabled := (GI_EditorFactory <> nil)
and (GI_EditorFactory.GetEditorCount > 0);
end;
procedure TMainForm.actFileExitExecute(Sender: TObject);
begin
Close;
end;
procedure TMainForm.mRecentFilesClick(Sender: TObject);
var
i: integer;
s: string;
begin
for i := Low(fMRUItems) to High(fMRUItems) do
if fMRUItems[i] <> nil then begin
s := CommandsDataModule.GetMRUEntry(i - Low(fMRUItems));
fMRUItems[i].Visible := s <> '';
fMRUItems[i].Caption := s;
end;
end;
procedure TMainForm.mFileClick(Sender: TObject);
begin
mRecentFiles.Enabled := CommandsDataModule.GetMRUEntries > 0;
end;
procedure TMainForm.actViewStatusbarUpdate(Sender: TObject);
begin
actViewStatusbar.Checked := StatusBar.Visible;
end;
procedure TMainForm.actViewStatusbarExecute(Sender: TObject);
begin
StatusBar.Visible := not StatusBar.Visible;
end;
procedure TMainForm.OnOpenMRUFile(Sender: TObject);
var
i: integer;
s: string;
begin
for i := Low(fMRUItems) to High(fMRUItems) do
if Sender = fMRUItems[i] then begin
s := CommandsDataModule.GetMRUEntry(i - 1);
if s <> '' then
DoOpenFile(s);
end;
end;
procedure TMainForm.actUpdateStatusBarPanelsUpdate(Sender: TObject);
resourcestring
SModified = 'Modified';
var
ptCaret: TPoint;
begin
actUpdateStatusBarPanels.Enabled := TRUE;
if GI_ActiveEditor <> nil then begin
ptCaret := GI_ActiveEditor.GetCaretPos;
if (ptCaret.X > 0) and (ptCaret.Y > 0) then
StatusBar.Panels[0].Text := Format(' %6d:%3d ', [ptCaret.Y, ptCaret.X])
else
StatusBar.Panels[0].Text := '';
if GI_ActiveEditor.GetModified then
StatusBar.Panels[1].Text := SModified
else
StatusBar.Panels[1].Text := '';
StatusBar.Panels[2].Text := GI_ActiveEditor.GetEditorState;
end else begin
StatusBar.Panels[0].Text := '';
StatusBar.Panels[1].Text := '';
StatusBar.Panels[2].Text := '';
end;
end;
end.