void cmdOpen(TclInterp interp, string[] argv)
{
//Create a file open box.
interp.Eval("set types { {\"Text files\" {.txt .doc}} {\"All files\" {*}} }");
interp.Eval("set file [tk_getOpenFile -filetypes $types]");
string filename = interp.GetVar("file");
if (filename != "")
{
cur_filename = filename;
//Clear the text box.
interp.Eval(".text delete 1.0 end");
//Open the file and dump it's contents into our text box.
TextReader file = File.OpenText(filename);
string command;
command = ".text insert end {";
command += file.ReadToEnd();
command += "}";
interp.Eval(command);
file.Close();
//Update titlebar to reflect filename changes.
command = "wm title . \"C# Notepad Using TCL - ";
command += filename;
command += "\"";
interp.Eval(command);
}
}
void cmdSaveAs(TclInterp interp, string[] argv)
{
//Create a file save box.
interp.Eval("set types { {\"Text files\" {.txt .doc}} {\"All files\" {*}} }");
interp.Eval("set file [tk_getSaveFile -filetypes $types]");
string filename = interp.GetVar("file");
Console.WriteLine(filename);
if (filename != "")
{
//Get text from the text box
interp.Eval("set data [.text get 1.0 end]");
string data = interp.GetVar("data");
//Open the file and dump it's contents into our text box.
TextWriter file = File.CreateText(filename);
file.Write(data);
file.Close();
interp.Eval("set data {}");
//Change the titlebar to reflect filename change.
string command = "wm title . \"C# Notepad Using TCL - ";
command += filename;
command += "\"";
interp.Eval(command);
}
}
void InitProc(TclInterp interp)
{
/*
* Initialize TCL - basically this function runs the init.tcl file which
* should be in your path environment variable.
*/
interp.TclInit();
/*
* Initialize the TK libs - basically loads all of the .tcl files that define
* the widgets - these should be in the tcl\lib path (which should also be in
* your path environment variable).
*/
interp.TkInit();
/*
* Evaluate a script - this creates a button, called .b with a label "Hello, World!".
* When the button is pressed it writes "Hello, world" to the console.
*/
//Setup the main window.
interp.Eval("wm title . \"C# Notepad Using TCL - Untitled\"");
//Create a text editor with a scrollbar - and pack it so that it always fills the
//available space in the window.
interp.Eval("text .text -yscrollcommand \".scroll set\" -setgrid true -font {Courier 10}");
interp.Eval("scrollbar .scroll -command \".text yview\"");
interp.Eval("pack .scroll -side right -fill y");
interp.Eval("pack .text -expand yes -fill both");
//Setup the initial menus.
interp.Eval("menu .menu -tearoff 0");
interp.Eval("menu .menu.file -tearoff 0");
interp.Eval("menu .menu.search -tearoff 0");
//Add items to the 'file' menu and add it to the menubar.
interp.Eval(".menu add cascade -label {File} -menu .menu.file");
interp.Eval(".menu add cascade -label {Search} -menu .menu.search");
interp.Eval(".menu.file add command -label {New} -command {cmdNew}");
interp.Eval(".menu.file add command -label {Open...} -command {cmdOpen}");
interp.Eval(".menu.file add command -label {Save...} -command {cmdSave}");
interp.Eval(".menu.file add command -label {Save As...} -command {cmdSaveAs}");
interp.Eval(".menu.file add separator");
interp.Eval(".menu.file add command -label {Exit} -command {cmdExit}");
interp.Eval(".menu.search add command -label {Highlight} -command {cmdHighlight}");
//Enable menus for the root window.
interp.Eval(". configure -menu .menu");
//Setup the menu callbacks.
interp.CreateCommand("cmdNew", new TclCmdProc(cmdNew));
interp.CreateCommand("cmdOpen", new TclCmdProc(cmdOpen));
interp.CreateCommand("cmdSave", new TclCmdProc(cmdSave));
interp.CreateCommand("cmdSaveAs", new TclCmdProc(cmdSaveAs));
interp.CreateCommand("cmdExit", new TclCmdProc(cmdExit));
interp.CreateCommand("cmdHighlight", new TclCmdProc(cmdHighlight));
}
void Run()
{
//
// Create the interpreter - and start the application.
//
TclInterp interp = new TclInterp();
interp.TkMain(new TclAppInitProc(InitProc));
}
void cmdExit(TclInterp interp, string[] argv)
{
interp.Eval("set query [tk_messageBox -icon question -title \"Quit\" -message \"You may have unsaved changes,\nare you sure?\" -type yesno]");
string result = interp.GetVar("query");
if (result == "yes")
{
interp.Eval("exit");
}
}
void cmdNew(TclInterp interp, string[] argv)
{
interp.Eval("set query [tk_messageBox -icon question -title \"New\" -message \"Are you sure?\" -type yesno]");
string result = interp.GetVar("query");
if (result == "yes")
{
interp.Eval(".text delete 1.0 end");
//Update the titlebar to reflect filename
interp.Eval("wm title . \"C# Notepad Using TCL - Untitled\"");
}
}
void cmdSave(TclInterp interp, string[] argv)
{
//Create a file save box.
if (cur_filename == null)
{
cmdSaveAs(interp, argv);
}
else
{
//Get text from the text box
interp.Eval("set data [.text get 1.0 end]");
string data = interp.GetVar("data");
//Open the file and dump it's contents into our text box.
TextWriter file = File.CreateText(cur_filename);
file.Write(data);
file.Close();
interp.Eval("set data {}");
}
}
void InitProc(TclInterp interp)
{
/*
* Initialize TCL - basically this function runs the init.tcl file which
* should be in your path environment variable.
*/
interp.TclInit();
/*
* Initialize the TK libs - basically loads all of the .tcl files that define
* the widgets - these should be in the tcl\lib path (which should also be in
* your path environment variable).
*/
interp.TkInit();
/*
* Evaluate a script - this creates a button, called .b with a label "Hello, World!".
* When the button is pressed it writes "Hello, world" to the console.
*/
//Create the main window.
interp.Eval("button .b -text {Hello, World!} -command {doIt}; pack .b");
interp.CreateCommand("doIt", new TclCmdProc(doItProc));
}
void doItProc(TclInterp interp, string[] s)
{
System.Console.Write("Hello World!! [{0}] [{1}]\n", s.Length, s[0]);
interp.Eval(".b configure -bg PeachPuff1");
}
void cmdHighlight(TclInterp interp, string[] argv)
{
}
