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wxWidgets/samples/widgets/textctrl.cpp
Ron Lee 12a3f2275c Deprecated wxSizer::Remove( wxWindow* ), s/Remove/Detach/ in most places. 
Made wxSizer child list typesafe.  I've not added the wxList implicit
conversion kludge yet, let's see who complains first perhaps..

Deprecated wxSizer::{G,S}etOption in favour of {G,S}etProportion in line
with the parameter name change in the docs.

Added {G,S}etSpacer consistent with the accessors for windows/sizers.

Made all wxSizer index parameters size_t -- we support no sensible
interpretation for negative indexes in them.  Hopefully this will
cause no real problems, but code doing (eg. Remove( 0 )) will need
to change to use 0u to resolve the ambiguity with overloaded members.
This is probably a Good Thing though, ymmv.

s/FALSE/false/g ; s/TRUE/true/g ; s/wxASSERT/wxASSERT_MSG/g in sizer.{cpp,h}

Fixed (I hope) the brokenness in wxSizer::Show -- I have no code to test
this yet, so it's a blind change, but spacers should now be hidden correctly
instead of ignored, and it should be properly reversable over multiple
calls now too.

removed pointless private scoping around DECLARE_CLASS macros.

Replace 0's I added previously with NULL -- not like that will end the
email thread either..

Added Add( wxSizerItem * ) & co.  There are probably a couple of other
places we can usefully do something like this too.  Stopped short of
refactoring everything to raise some issues about sizer method recursion
on -dev.

Updated wxSizer docs some more, they are still incomplete but getting
better.

wrapped KeyCode in wxDEPRECATED, converted all (gtk build) instances
to GetKeyCode.  There may be a few left for other ports.

Fixed a couple of other random compile warnings along the way.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@18616 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2003-01-07 10:22:07 +00:00

762 lines
22 KiB
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Raw Blame History

/////////////////////////////////////////////////////////////////////////////
// Program: wxWindows Widgets Sample
// Name: textctrl.cpp
// Purpose: part of the widgets sample showing wxTextCtrl
// Author: Vadim Zeitlin
// Created: 27.03.01
// Id: $Id$
// Copyright: (c) 2001 Vadim Zeitlin
// License: wxWindows license
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// for compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
// for all others, include the necessary headers
#ifndef WX_PRECOMP
#include "wx/log.h"
#include "wx/timer.h"
#include "wx/button.h"
#include "wx/checkbox.h"
#include "wx/radiobox.h"
#include "wx/statbox.h"
#include "wx/stattext.h"
#include "wx/textctrl.h"
#endif
#include "wx/sizer.h"
#include "widgets.h"
#include "icons/text.xpm"
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// control ids
enum
{
TextPage_Reset = 100,
TextPage_Set,
TextPage_Add,
TextPage_Insert,
TextPage_Clear,
TextPage_Load,
TextPage_Password,
TextPage_WrapLines,
TextPage_Textctrl
};
// textctrl line number radiobox values
enum TextLines
{
TextLines_Single,
TextLines_Multi
};
#ifdef __WXMSW__
// textctrl kind values
enum TextKind
{
TextKind_Plain,
TextKind_Rich,
TextKind_Rich2
};
#endif // __WXMSW__
// default values for the controls
static const struct ControlValues
{
TextLines textLines;
bool password;
bool wraplines;
bool readonly;
#ifdef __WXMSW__
TextKind textKind;
#endif // __WXMSW__
} DEFAULTS =
{
TextLines_Multi, // multiline
FALSE, // not password
TRUE, // do wrap lines
FALSE, // not readonly
#ifdef __WXMSW__
TextKind_Plain // plain EDIT control
#endif // __WXMSW__
};
// ----------------------------------------------------------------------------
// TextWidgetsPage
// ----------------------------------------------------------------------------
// Define a new frame type: this is going to be our main frame
class TextWidgetsPage : public WidgetsPage
{
public:
// ctor(s) and dtor
TextWidgetsPage(wxNotebook *notebook, wxImageList *imaglist);
virtual ~TextWidgetsPage();
protected:
// create an info text contorl
wxTextCtrl *CreateInfoText();
// create a horz sizer holding a static text and this text control
wxSizer *CreateTextWithLabelSizer(const wxString& label,
wxTextCtrl *text,
const wxString& label2 = wxEmptyString,
wxTextCtrl *text2 = NULL);
// event handlers
void OnButtonReset(wxCommandEvent& event);
void OnButtonClearLog(wxCommandEvent& event);
void OnButtonSet(wxCommandEvent& event);
void OnButtonAdd(wxCommandEvent& event);
void OnButtonInsert(wxCommandEvent& event);
void OnButtonClear(wxCommandEvent& event);
void OnButtonLoad(wxCommandEvent& event);
void OnButtonQuit(wxCommandEvent& event);
void OnText(wxCommandEvent& event);
void OnTextEnter(wxCommandEvent& event);
void OnCheckOrRadioBox(wxCommandEvent& event);
void OnUpdateUIClearButton(wxUpdateUIEvent& event);
void OnUpdateUIPasswordCheckbox(wxUpdateUIEvent& event);
void OnUpdateUIWrapLinesCheckbox(wxUpdateUIEvent& event);
void OnUpdateUIResetButton(wxUpdateUIEvent& event);
void OnIdle(wxIdleEvent& event);
// reset the textctrl parameters
void Reset();
// (re)create the textctrl
void CreateText();
// is the control currently single line?
bool IsSingleLine() const
{
return m_radioTextLines->GetSelection() == TextLines_Single;
}
// the controls
// ------------
// the radiobox to choose between single and multi line
wxRadioBox *m_radioTextLines;
// the checkboxes controlling text ctrl styles
wxCheckBox *m_chkPassword,
*m_chkWrapLines,
*m_chkReadonly;
// under MSW we test rich edit controls as well here
#ifdef __WXMSW__
wxRadioBox *m_radioKind;
#endif // __WXMSW__
// the textctrl itself and the sizer it is in
wxTextCtrl *m_text;
wxSizer *m_sizerText;
// the information text zones
wxTextCtrl *m_textPosCur,
*m_textRowCur,
*m_textColCur,
*m_textPosLast,
*m_textLineLast,
*m_textSelFrom,
*m_textSelTo,
*m_textRange;
// and the data to show in them
long m_posCur,
m_posLast,
m_selFrom,
m_selTo;
private:
// any class wishing to process wxWindows events must use this macro
DECLARE_EVENT_TABLE()
DECLARE_WIDGETS_PAGE(TextWidgetsPage)
};
// ----------------------------------------------------------------------------
// event tables
// ----------------------------------------------------------------------------
BEGIN_EVENT_TABLE(TextWidgetsPage, WidgetsPage)
EVT_IDLE(TextWidgetsPage::OnIdle)
EVT_BUTTON(TextPage_Reset, TextWidgetsPage::OnButtonReset)
EVT_BUTTON(TextPage_Clear, TextWidgetsPage::OnButtonClear)
EVT_BUTTON(TextPage_Set, TextWidgetsPage::OnButtonSet)
EVT_BUTTON(TextPage_Add, TextWidgetsPage::OnButtonAdd)
EVT_BUTTON(TextPage_Insert, TextWidgetsPage::OnButtonInsert)
EVT_BUTTON(TextPage_Load, TextWidgetsPage::OnButtonLoad)
EVT_UPDATE_UI(TextPage_Clear, TextWidgetsPage::OnUpdateUIClearButton)
EVT_UPDATE_UI(TextPage_Password, TextWidgetsPage::OnUpdateUIPasswordCheckbox)
EVT_UPDATE_UI(TextPage_WrapLines, TextWidgetsPage::OnUpdateUIWrapLinesCheckbox)
EVT_UPDATE_UI(TextPage_Reset, TextWidgetsPage::OnUpdateUIResetButton)
EVT_TEXT(TextPage_Textctrl, TextWidgetsPage::OnText)
EVT_TEXT_ENTER(TextPage_Textctrl, TextWidgetsPage::OnTextEnter)
EVT_CHECKBOX(-1, TextWidgetsPage::OnCheckOrRadioBox)
EVT_RADIOBOX(-1, TextWidgetsPage::OnCheckOrRadioBox)
END_EVENT_TABLE()
// ============================================================================
// implementation
// ============================================================================
IMPLEMENT_WIDGETS_PAGE(TextWidgetsPage, _T("Text"));
// ----------------------------------------------------------------------------
// TextWidgetsPage creation
// ----------------------------------------------------------------------------
TextWidgetsPage::TextWidgetsPage(wxNotebook *notebook, wxImageList *imaglist)
: WidgetsPage(notebook)
{
imaglist->Add(wxBitmap(text_xpm));
// init everything
#ifdef __WXMSW__
m_radioKind =
#endif // __WXMSW__
m_radioTextLines = (wxRadioBox *)NULL;
m_chkPassword =
m_chkWrapLines =
m_chkReadonly = (wxCheckBox *)NULL;
m_text =
m_textPosCur =
m_textRowCur =
m_textColCur =
m_textPosLast =
m_textLineLast =
m_textSelFrom =
m_textSelTo =
m_textRange = (wxTextCtrl *)NULL;
m_sizerText = (wxSizer *)NULL;
m_posCur =
m_posLast =
m_selFrom =
m_selTo = -2; // not -1 which means "no selection"
// left pane
static const wxString modes[] =
{
_T("single line"),
_T("multi line"),
};
wxStaticBox *box = new wxStaticBox(this, -1, _T("&Set textctrl parameters"));
m_radioTextLines = new wxRadioBox(this, -1, _T("&Number of lines:"),
wxDefaultPosition, wxDefaultSize,
WXSIZEOF(modes), modes,
1, wxRA_SPECIFY_COLS);
wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
sizerLeft->Add(m_radioTextLines, 0, wxGROW | wxALL, 5);
sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
m_chkPassword = CreateCheckBoxAndAddToSizer(
sizerLeft, _T("&Password control"), TextPage_Password
);
m_chkWrapLines = CreateCheckBoxAndAddToSizer(
sizerLeft, _T("Line &wrap"), TextPage_WrapLines
);
m_chkReadonly = CreateCheckBoxAndAddToSizer(
sizerLeft, _T("&Read-only mode")
);
#ifdef __WXMSW__
static const wxString kinds[] =
{
_T("plain edit"),
_T("rich edit"),
_T("rich edit 2.0"),
};
m_radioKind = new wxRadioBox(this, -1, _T("Control &kind"),
wxDefaultPosition, wxDefaultSize,
WXSIZEOF(kinds), kinds,
1, wxRA_SPECIFY_COLS);
sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
sizerLeft->Add(m_radioKind, 0, wxGROW | wxALL, 5);
#endif // __WXMSW__
wxButton *btn = new wxButton(this, TextPage_Reset, _T("&Reset"));
sizerLeft->Add(2, 2, 0, wxGROW | wxALL, 1); // spacer
sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
// middle pane
wxStaticBox *box2 = new wxStaticBox(this, -1, _T("&Change contents:"));
wxSizer *sizerMiddleUp = new wxStaticBoxSizer(box2, wxVERTICAL);
btn = new wxButton(this, TextPage_Set, _T("&Set text value"));
sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
btn = new wxButton(this, TextPage_Add, _T("&Append text"));
sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
btn = new wxButton(this, TextPage_Insert, _T("&Insert text"));
sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
btn = new wxButton(this, TextPage_Load, _T("&Load file"));
sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
btn = new wxButton(this, TextPage_Clear, _T("&Clear"));
sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
wxStaticBox *box4 = new wxStaticBox(this, -1, _T("&Info:"));
wxSizer *sizerMiddleDown = new wxStaticBoxSizer(box4, wxVERTICAL);
m_textPosCur = CreateInfoText();
m_textRowCur = CreateInfoText();
m_textColCur = CreateInfoText();
wxSizer *sizerRow = new wxBoxSizer(wxHORIZONTAL);
sizerRow->Add(CreateTextWithLabelSizer
(
_T("Current pos:"),
m_textPosCur
),
0, wxRIGHT, 5);
sizerRow->Add(CreateTextWithLabelSizer
(
_T("Col:"),
m_textColCur
),
0, wxLEFT | wxRIGHT, 5);
sizerRow->Add(CreateTextWithLabelSizer
(
_T("Row:"),
m_textRowCur
),
0, wxLEFT, 5);
sizerMiddleDown->Add(sizerRow, 0, wxALL, 5);
m_textLineLast = CreateInfoText();
m_textPosLast = CreateInfoText();
sizerMiddleDown->Add
(
CreateTextWithLabelSizer
(
_T("Number of lines:"),
m_textLineLast,
_T("Last position:"),
m_textPosLast
),
0, wxALL, 5
);
m_textSelFrom = CreateInfoText();
m_textSelTo = CreateInfoText();
sizerMiddleDown->Add
(
CreateTextWithLabelSizer
(
_T("Selection: from"),
m_textSelFrom,
_T("to"),
m_textSelTo
),
0, wxALL, 5
);
m_textRange = new wxTextCtrl(this, -1, _T(""),
wxDefaultPosition, wxDefaultSize,
wxTE_READONLY);
sizerMiddleDown->Add
(
CreateTextWithLabelSizer
(
_T("Range 10..20:"),
m_textRange
),
0, wxALL, 5
);
wxSizer *sizerMiddle = new wxBoxSizer(wxVERTICAL);
sizerMiddle->Add(sizerMiddleUp, 0, wxGROW);
sizerMiddle->Add(sizerMiddleDown, 1, wxGROW | wxTOP, 5);
// right pane
wxStaticBox *box3 = new wxStaticBox(this, -1, _T("&Text:"));
m_sizerText = new wxStaticBoxSizer(box3, wxHORIZONTAL);
Reset();
CreateText();
m_sizerText->SetMinSize(150, 0);
// the 3 panes panes compose the upper part of the window
wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
sizerTop->Add(sizerMiddle, 0, wxGROW | wxALL, 10);
sizerTop->Add(m_sizerText, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
SetAutoLayout(TRUE);
SetSizer(sizerTop);
sizerTop->Fit(this);
}
TextWidgetsPage::~TextWidgetsPage()
{
}
// ----------------------------------------------------------------------------
// creation helpers
// ----------------------------------------------------------------------------
wxTextCtrl *TextWidgetsPage::CreateInfoText()
{
static int s_maxWidth = 0;
if ( !s_maxWidth )
{
// calc it once only
GetTextExtent(_T("9999999"), &s_maxWidth, NULL);
}
wxTextCtrl *text = new wxTextCtrl(this, -1, _T(""),
wxDefaultPosition,
wxSize(s_maxWidth, -1),
wxTE_READONLY);
return text;
}
wxSizer *TextWidgetsPage::CreateTextWithLabelSizer(const wxString& label,
wxTextCtrl *text,
const wxString& label2,
wxTextCtrl *text2)
{
wxSizer *sizerRow = new wxBoxSizer(wxHORIZONTAL);
sizerRow->Add(new wxStaticText(this, -1, label), 0,
wxALIGN_CENTRE_VERTICAL | wxRIGHT, 5);
sizerRow->Add(text, 0, wxALIGN_CENTRE_VERTICAL);
if ( text2 )
{
sizerRow->Add(new wxStaticText(this, -1, label2), 0,
wxALIGN_CENTRE_VERTICAL | wxLEFT | wxRIGHT, 5);
sizerRow->Add(text2, 0, wxALIGN_CENTRE_VERTICAL);
}
return sizerRow;
}
// ----------------------------------------------------------------------------
// operations
// ----------------------------------------------------------------------------
void TextWidgetsPage::Reset()
{
m_radioTextLines->SetSelection(DEFAULTS.textLines);
m_chkPassword->SetValue(DEFAULTS.password);
m_chkWrapLines->SetValue(DEFAULTS.wraplines);
m_chkReadonly->SetValue(DEFAULTS.readonly);
#ifdef __WXMSW__
m_radioKind->SetSelection(DEFAULTS.textKind);
#endif // __WXMSW__
}
void TextWidgetsPage::CreateText()
{
int flags = 0;
switch ( m_radioTextLines->GetSelection() )
{
default:
wxFAIL_MSG( _T("unexpected lines radio box selection") );
case TextLines_Single:
break;
case TextLines_Multi:
flags |= wxTE_MULTILINE;
m_chkPassword->SetValue(FALSE);
break;
}
if ( m_chkPassword->GetValue() )
flags |= wxTE_PASSWORD;
if ( m_chkReadonly->GetValue() )
flags |= wxTE_READONLY;
if ( !m_chkWrapLines->GetValue() )
flags |= wxHSCROLL;
#ifdef __WXMSW__
switch ( m_radioKind->GetSelection() )
{
default:
wxFAIL_MSG( _T("unexpected kind radio box selection") );
case TextKind_Plain:
break;
case TextKind_Rich:
flags |= wxTE_RICH;
break;
case TextKind_Rich2:
flags |= wxTE_RICH2;
break;
}
#endif // __WXMSW__
wxString valueOld;
if ( m_text )
{
valueOld = m_text->GetValue();
m_sizerText->Detach( m_text );
delete m_text;
}
else
{
valueOld = _T("Hello, Universe!");
}
m_text = new wxTextCtrl(this, TextPage_Textctrl,
valueOld,
wxDefaultPosition, wxDefaultSize,
flags);
// cast to int needed to silence gcc warning about different enums
m_sizerText->Add(m_text, 1, wxALL |
(flags & wxTE_MULTILINE ? (int)wxGROW
: wxALIGN_TOP), 5);
m_sizerText->Layout();
}
// ----------------------------------------------------------------------------
// event handlers
// ----------------------------------------------------------------------------
void TextWidgetsPage::OnIdle(wxIdleEvent& WXUNUSED(event))
{
// update all info texts
if ( m_textPosCur )
{
long posCur = m_text->GetInsertionPoint();
if ( posCur != m_posCur )
{
m_textPosCur->Clear();
m_textRowCur->Clear();
m_textColCur->Clear();
long col, row;
m_text->PositionToXY(posCur, &col, &row);
*m_textPosCur << posCur;
*m_textRowCur << row;
*m_textColCur << col;
m_posCur = posCur;
}
}
if ( m_textPosLast )
{
long posLast = m_text->GetLastPosition();
if ( posLast != m_posLast )
{
m_textPosLast->Clear();
*m_textPosLast << posLast;
m_posLast = posLast;
}
}
if ( m_textLineLast )
{
m_textLineLast->SetValue(
wxString::Format(_T("%d"), m_text->GetNumberOfLines()) );
}
if ( m_textSelFrom && m_textSelTo )
{
long selFrom, selTo;
m_text->GetSelection(&selFrom, &selTo);
if ( selFrom != m_selFrom )
{
m_textSelFrom->Clear();
*m_textSelFrom << selFrom;
m_selFrom = selFrom;
}
if ( selTo != m_selTo )
{
m_textSelTo->Clear();
*m_textSelTo << selTo;
m_selTo = selTo;
}
}
if ( m_textRange )
{
m_textRange->SetValue(m_text->GetRange(10, 20));
}
}
void TextWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
{
Reset();
CreateText();
}
void TextWidgetsPage::OnButtonSet(wxCommandEvent& WXUNUSED(event))
{
m_text->SetValue(m_text->GetWindowStyle() & wxTE_MULTILINE
? _T("Here,\nthere and\neverywhere")
: _T("Yellow submarine"));
m_text->SetFocus();
}
void TextWidgetsPage::OnButtonAdd(wxCommandEvent& WXUNUSED(event))
{
if ( m_text->GetWindowStyle() & wxTE_MULTILINE )
{
m_text->AppendText(_T("We all live in a\n"));
}
m_text->AppendText(_T("Yellow submarine"));
}
void TextWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event))
{
m_text->WriteText(_T("Is there anybody going to listen to my story"));
if ( m_text->GetWindowStyle() & wxTE_MULTILINE )
{
m_text->WriteText(_T("\nall about the girl who came to stay"));
}
}
void TextWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event))
{
m_text->Clear();
m_text->SetFocus();
}
void TextWidgetsPage::OnButtonLoad(wxCommandEvent& WXUNUSED(event))
{
// search for the file in several dirs where it's likely to be
wxPathList pathlist;
pathlist.Add(_T("."));
pathlist.Add(_T(".."));
pathlist.Add(_T("../../../samples/widgets"));
wxString filename = pathlist.FindValidPath(_T("textctrl.cpp"));
if ( !filename )
{
wxLogError(_T("File textctrl.cpp not found."));
}
else // load it
{
wxStopWatch sw;
if ( !m_text->LoadFile(filename) )
{
// this is not supposed to happen ...
wxLogError(_T("Error loading file."));
}
else
{
long elapsed = sw.Time();
wxLogMessage(_T("Loaded file '%s' in %lu.%us"),
filename.c_str(), elapsed / 1000,
(unsigned int) elapsed % 1000);
}
}
}
void TextWidgetsPage::OnUpdateUIClearButton(wxUpdateUIEvent& event)
{
event.Enable(!m_text->GetValue().empty());
}
void TextWidgetsPage::OnUpdateUIWrapLinesCheckbox(wxUpdateUIEvent& event)
{
event.Enable( !IsSingleLine() );
}
void TextWidgetsPage::OnUpdateUIPasswordCheckbox(wxUpdateUIEvent& event)
{
// can't put multiline control in password mode
event.Enable( IsSingleLine() );
}
void TextWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
{
event.Enable( (m_radioTextLines->GetSelection() != DEFAULTS.textLines) ||
#ifdef __WXMSW__
(m_radioKind->GetSelection() != DEFAULTS.textKind) ||
#endif // __WXMSW__
(m_chkReadonly->GetValue() != DEFAULTS.readonly) ||
(m_chkPassword->GetValue() != DEFAULTS.password) ||
(m_chkWrapLines->GetValue() != DEFAULTS.wraplines) );
}
void TextWidgetsPage::OnText(wxCommandEvent& event)
{
// small hack to suppress the very first message: by then the logging is
// not yet redirected and so initial setting of the text value results in
// an annoying message box
static bool s_firstTime = TRUE;
if ( s_firstTime )
{
s_firstTime = FALSE;
return;
}
wxLogMessage(_T("Text ctrl value changed"));
}
void TextWidgetsPage::OnTextEnter(wxCommandEvent& event)
{
wxLogMessage(_T("Text entered: '%s'"), event.GetString().c_str());
}
void TextWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& event)
{
CreateText();
}
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