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wxWidgets/samples/richtext/richtext.cpp
Julian Smart fe5aa22c17 Fixed bugs in, and added operators and copy constructors to, style 
sheet classes.
Now merges base, paragraph and content styles dynamically on
display or layout so that we can distinguish between them. This
means appling a paragraph style that has character formatting
doesn't wipe out the original content formatting. The old-style
static method can be enabled by setting wxRICHTEXT_USE_DYNAMIC_STYLES
to 0 in richtextbuffer.h.
The default style is initially empty, so that adding text
reflects the base and paragraph styles. Setting the default style
doesn't merge with the previous setting, but BeginStyle does.
Adding new paragraphs is now sensitive to the previous paragraph's
style and also whether its style has a next-paragraph style indication.
Added wxRichTextCtrl::ApplyStyleSheet which reapplies styles to
paragraphs with named styles.
Added style application command to sample to demonstrate how
styles can be changed and reapplied without affecting content
character formatting.
Fixed some range bugs in UI feedback and clipboard copying and pasting.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41501 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2006-09-29 08:53:23 +00:00

1143 lines
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/////////////////////////////////////////////////////////////////////////////
// Name: samples/richtext/richtext.cpp
// Purpose: wxWidgets rich text editor sample
// Author: Julian Smart
// Modified by:
// Created: 2005-10-02
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// 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 (this file is usually all you
// need because it includes almost all "standard" wxWidgets headers)
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#include "wx/fontdlg.h"
#include "wx/splitter.h"
#include "wx/sstream.h"
#include "wx/html/htmlwin.h"
#ifndef __WXMSW__
#include "../sample.xpm"
#endif
#include "bitmaps/smiley.xpm"
// #include "bitmaps/idea.xpm"
#include "bitmaps/zebra.xpm"
#include "bitmaps/open.xpm"
#include "bitmaps/save.xpm"
#include "bitmaps/copy.xpm"
#include "bitmaps/cut.xpm"
#include "bitmaps/paste.xpm"
#include "bitmaps/undo.xpm"
#include "bitmaps/redo.xpm"
#include "bitmaps/bold.xpm"
#include "bitmaps/italic.xpm"
#include "bitmaps/underline.xpm"
#include "bitmaps/alignleft.xpm"
#include "bitmaps/alignright.xpm"
#include "bitmaps/centre.xpm"
#include "bitmaps/font.xpm"
#include "bitmaps/indentless.xpm"
#include "bitmaps/indentmore.xpm"
#include "wx/richtext/richtextctrl.h"
#include "wx/richtext/richtextstyles.h"
#include "wx/richtext/richtextxml.h"
#include "wx/richtext/richtexthtml.h"
// ----------------------------------------------------------------------------
// resources
// ----------------------------------------------------------------------------
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
// Define a new application type, each program should derive a class from wxApp
class MyApp : public wxApp
{
public:
// override base class virtuals
// ----------------------------
// this one is called on application startup and is a good place for the app
// initialization (doing it here and not in the ctor allows to have an error
// return: if OnInit() returns false, the application terminates)
virtual bool OnInit();
virtual int OnExit();
void CreateStyles();
wxRichTextStyleSheet* GetStyleSheet() const { return m_styleSheet; }
wxRichTextStyleSheet* m_styleSheet;
};
// Define a new frame type: this is going to be our main frame
class MyFrame : public wxFrame
{
public:
// ctor(s)
MyFrame(const wxString& title, wxWindowID id, const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize, long style = wxDEFAULT_FRAME_STYLE);
// event handlers (these functions should _not_ be virtual)
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
void OnOpen(wxCommandEvent& event);
void OnSave(wxCommandEvent& event);
void OnSaveAs(wxCommandEvent& event);
void OnBold(wxCommandEvent& event);
void OnItalic(wxCommandEvent& event);
void OnUnderline(wxCommandEvent& event);
void OnUpdateBold(wxUpdateUIEvent& event);
void OnUpdateItalic(wxUpdateUIEvent& event);
void OnUpdateUnderline(wxUpdateUIEvent& event);
void OnAlignLeft(wxCommandEvent& event);
void OnAlignCentre(wxCommandEvent& event);
void OnAlignRight(wxCommandEvent& event);
void OnUpdateAlignLeft(wxUpdateUIEvent& event);
void OnUpdateAlignCentre(wxUpdateUIEvent& event);
void OnUpdateAlignRight(wxUpdateUIEvent& event);
void OnFont(wxCommandEvent& event);
void OnIndentMore(wxCommandEvent& event);
void OnIndentLess(wxCommandEvent& event);
void OnLineSpacingHalf(wxCommandEvent& event);
void OnLineSpacingDouble(wxCommandEvent& event);
void OnLineSpacingSingle(wxCommandEvent& event);
void OnParagraphSpacingMore(wxCommandEvent& event);
void OnParagraphSpacingLess(wxCommandEvent& event);
void OnViewHTML(wxCommandEvent& event);
void OnSwitchStyleSheets(wxCommandEvent& event);
// Forward command events to the current rich text control, if any
bool ProcessEvent(wxEvent& event);
private:
// any class wishing to process wxWidgets events must use this macro
DECLARE_EVENT_TABLE()
wxRichTextCtrl* m_richTextCtrl;
};
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// IDs for the controls and the menu commands
enum
{
// menu items
ID_Quit = wxID_EXIT,
ID_About = wxID_ABOUT,
ID_FORMAT_BOLD = 100,
ID_FORMAT_ITALIC,
ID_FORMAT_UNDERLINE,
ID_FORMAT_FONT,
ID_FORMAT_ALIGN_LEFT,
ID_FORMAT_ALIGN_CENTRE,
ID_FORMAT_ALIGN_RIGHT,
ID_FORMAT_INDENT_MORE,
ID_FORMAT_INDENT_LESS,
ID_FORMAT_PARAGRAPH_SPACING_MORE,
ID_FORMAT_PARAGRAPH_SPACING_LESS,
ID_FORMAT_LINE_SPACING_HALF,
ID_FORMAT_LINE_SPACING_DOUBLE,
ID_FORMAT_LINE_SPACING_SINGLE,
ID_VIEW_HTML,
ID_SWITCH_STYLE_SHEETS,
ID_RICHTEXT_CTRL,
ID_RICHTEXT_STYLE_LIST,
ID_RICHTEXT_STYLE_COMBO
};
// ----------------------------------------------------------------------------
// event tables and other macros for wxWidgets
// ----------------------------------------------------------------------------
// the event tables connect the wxWidgets events with the functions (event
// handlers) which process them. It can be also done at run-time, but for the
// simple menu events like this the static method is much simpler.
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(ID_Quit, MyFrame::OnQuit)
EVT_MENU(ID_About, MyFrame::OnAbout)
EVT_MENU(wxID_OPEN, MyFrame::OnOpen)
EVT_MENU(wxID_SAVE, MyFrame::OnSave)
EVT_MENU(wxID_SAVEAS, MyFrame::OnSaveAs)
EVT_MENU(ID_FORMAT_BOLD, MyFrame::OnBold)
EVT_MENU(ID_FORMAT_ITALIC, MyFrame::OnItalic)
EVT_MENU(ID_FORMAT_UNDERLINE, MyFrame::OnUnderline)
EVT_UPDATE_UI(ID_FORMAT_BOLD, MyFrame::OnUpdateBold)
EVT_UPDATE_UI(ID_FORMAT_ITALIC, MyFrame::OnUpdateItalic)
EVT_UPDATE_UI(ID_FORMAT_UNDERLINE, MyFrame::OnUpdateUnderline)
EVT_MENU(ID_FORMAT_ALIGN_LEFT, MyFrame::OnAlignLeft)
EVT_MENU(ID_FORMAT_ALIGN_CENTRE, MyFrame::OnAlignCentre)
EVT_MENU(ID_FORMAT_ALIGN_RIGHT, MyFrame::OnAlignRight)
EVT_UPDATE_UI(ID_FORMAT_ALIGN_LEFT, MyFrame::OnUpdateAlignLeft)
EVT_UPDATE_UI(ID_FORMAT_ALIGN_CENTRE, MyFrame::OnUpdateAlignCentre)
EVT_UPDATE_UI(ID_FORMAT_ALIGN_RIGHT, MyFrame::OnUpdateAlignRight)
EVT_MENU(ID_FORMAT_FONT, MyFrame::OnFont)
EVT_MENU(ID_FORMAT_INDENT_MORE, MyFrame::OnIndentMore)
EVT_MENU(ID_FORMAT_INDENT_LESS, MyFrame::OnIndentLess)
EVT_MENU(ID_FORMAT_LINE_SPACING_HALF, MyFrame::OnLineSpacingHalf)
EVT_MENU(ID_FORMAT_LINE_SPACING_SINGLE, MyFrame::OnLineSpacingSingle)
EVT_MENU(ID_FORMAT_LINE_SPACING_DOUBLE, MyFrame::OnLineSpacingDouble)
EVT_MENU(ID_FORMAT_PARAGRAPH_SPACING_MORE, MyFrame::OnParagraphSpacingMore)
EVT_MENU(ID_FORMAT_PARAGRAPH_SPACING_LESS, MyFrame::OnParagraphSpacingLess)
EVT_MENU(ID_VIEW_HTML, MyFrame::OnViewHTML)
EVT_MENU(ID_SWITCH_STYLE_SHEETS, MyFrame::OnSwitchStyleSheets)
END_EVENT_TABLE()
// Create a new application object: this macro will allow wxWidgets to create
// the application object during program execution (it's better than using a
// static object for many reasons) and also implements the accessor function
// wxGetApp() which will return the reference of the right type (i.e. MyApp and
// not wxApp)
IMPLEMENT_APP(MyApp)
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// the application class
// ----------------------------------------------------------------------------
// 'Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
m_styleSheet = new wxRichTextStyleSheet;
CreateStyles();
// Add extra handlers (plain text is automatically added)
wxRichTextBuffer::AddHandler(new wxRichTextXMLHandler);
wxRichTextBuffer::AddHandler(new wxRichTextHTMLHandler);
// Add image handlers
#if wxUSE_LIBPNG
wxImage::AddHandler( new wxPNGHandler );
#endif
#if wxUSE_LIBJPEG
wxImage::AddHandler( new wxJPEGHandler );
#endif
#if wxUSE_GIF
wxImage::AddHandler( new wxGIFHandler );
#endif
// create the main application window
MyFrame *frame = new MyFrame(_T("wxRichTextCtrl Sample"), wxID_ANY, wxDefaultPosition, wxSize(700, 600));
// and show it (the frames, unlike simple controls, are not shown when
// created initially)
frame->Show(true);
// success: wxApp::OnRun() will be called which will enter the main message
// loop and the application will run. If we returned false here, the
// application would exit immediately.
return true;
}
int MyApp::OnExit()
{
delete m_styleSheet;
return 0;
}
void MyApp::CreateStyles()
{
// Paragraph styles
wxFont romanFont(12, wxROMAN, wxNORMAL, wxNORMAL);
wxFont swissFont(12, wxSWISS, wxNORMAL, wxNORMAL);
wxRichTextParagraphStyleDefinition* normalPara = new wxRichTextParagraphStyleDefinition(wxT("Normal"));
wxRichTextAttr normalAttr;
normalAttr.SetFontFaceName(romanFont.GetFaceName());
normalAttr.SetFontSize(12);
// Let's set all attributes for this style
normalAttr.SetFlags(wxTEXT_ATTR_FONT | wxTEXT_ATTR_BACKGROUND_COLOUR | wxTEXT_ATTR_TEXT_COLOUR|wxTEXT_ATTR_ALIGNMENT|wxTEXT_ATTR_LEFT_INDENT|wxTEXT_ATTR_RIGHT_INDENT|wxTEXT_ATTR_TABS|
wxTEXT_ATTR_PARA_SPACING_BEFORE|wxTEXT_ATTR_PARA_SPACING_AFTER|wxTEXT_ATTR_LINE_SPACING|
wxTEXT_ATTR_BULLET_STYLE|wxTEXT_ATTR_BULLET_NUMBER);
normalPara->SetStyle(normalAttr);
m_styleSheet->AddParagraphStyle(normalPara);
wxRichTextParagraphStyleDefinition* indentedPara = new wxRichTextParagraphStyleDefinition(wxT("Indented"));
wxRichTextAttr indentedAttr;
indentedAttr.SetFontFaceName(romanFont.GetFaceName());
indentedAttr.SetFontSize(12);
indentedAttr.SetLeftIndent(100, 0);
// We only want to affect indentation
indentedAttr.SetFlags(wxTEXT_ATTR_LEFT_INDENT|wxTEXT_ATTR_RIGHT_INDENT);
indentedPara->SetStyle(indentedAttr);
m_styleSheet->AddParagraphStyle(indentedPara);
wxRichTextParagraphStyleDefinition* indentedPara2 = new wxRichTextParagraphStyleDefinition(wxT("Red Bold Indented"));
wxRichTextAttr indentedAttr2;
indentedAttr2.SetFontFaceName(romanFont.GetFaceName());
indentedAttr2.SetFontSize(12);
indentedAttr2.SetFontWeight(wxBOLD);
indentedAttr2.SetTextColour(*wxRED);
indentedAttr2.SetFontSize(12);
indentedAttr2.SetLeftIndent(100, 0);
// We want to affect indentation, font and text colour
indentedAttr2.SetFlags(wxTEXT_ATTR_LEFT_INDENT|wxTEXT_ATTR_RIGHT_INDENT|wxTEXT_ATTR_FONT|wxTEXT_ATTR_TEXT_COLOUR);
indentedPara2->SetStyle(indentedAttr2);
m_styleSheet->AddParagraphStyle(indentedPara2);
wxRichTextParagraphStyleDefinition* flIndentedPara = new wxRichTextParagraphStyleDefinition(wxT("First Line Indented"));
wxRichTextAttr flIndentedAttr;
flIndentedAttr.SetFontFaceName(swissFont.GetFaceName());
flIndentedAttr.SetFontSize(12);
flIndentedAttr.SetLeftIndent(100, -100);
// We only want to affect indentation
flIndentedAttr.SetFlags(wxTEXT_ATTR_LEFT_INDENT|wxTEXT_ATTR_RIGHT_INDENT);
flIndentedPara->SetStyle(flIndentedAttr);
m_styleSheet->AddParagraphStyle(flIndentedPara);
// Character styles
wxRichTextCharacterStyleDefinition* boldDef = new wxRichTextCharacterStyleDefinition(wxT("Bold"));
wxRichTextAttr boldAttr;
boldAttr.SetFontFaceName(romanFont.GetFaceName());
boldAttr.SetFontSize(12);
boldAttr.SetFontWeight(wxBOLD);
// We only want to affect boldness
boldAttr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
boldDef->SetStyle(boldAttr);
m_styleSheet->AddCharacterStyle(boldDef);
wxRichTextCharacterStyleDefinition* italicDef = new wxRichTextCharacterStyleDefinition(wxT("Italic"));
wxRichTextAttr italicAttr;
italicAttr.SetFontFaceName(romanFont.GetFaceName());
italicAttr.SetFontSize(12);
italicAttr.SetFontStyle(wxITALIC);
// We only want to affect italics
italicAttr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
italicDef->SetStyle(italicAttr);
m_styleSheet->AddCharacterStyle(italicDef);
wxRichTextCharacterStyleDefinition* redDef = new wxRichTextCharacterStyleDefinition(wxT("Red Bold"));
wxRichTextAttr redAttr;
redAttr.SetFontFaceName(romanFont.GetFaceName());
redAttr.SetFontSize(12);
redAttr.SetFontWeight(wxBOLD);
redAttr.SetTextColour(*wxRED);
// We only want to affect colour, weight and face
redAttr.SetFlags(wxTEXT_ATTR_FONT_FACE|wxTEXT_ATTR_FONT_WEIGHT|wxTEXT_ATTR_TEXT_COLOUR);
redDef->SetStyle(redAttr);
m_styleSheet->AddCharacterStyle(redDef);
}
// ----------------------------------------------------------------------------
// main frame
// ----------------------------------------------------------------------------
// frame constructor
MyFrame::MyFrame(const wxString& title, wxWindowID id, const wxPoint& pos,
const wxSize& size, long style)
: wxFrame(NULL, id, title, pos, size, style)
{
// set the frame icon
SetIcon(wxICON(sample));
// create a menu bar
wxMenu *fileMenu = new wxMenu;
// the "About" item should be in the help menu
wxMenu *helpMenu = new wxMenu;
helpMenu->Append(ID_About, _T("&About...\tF1"), _T("Show about dialog"));
fileMenu->Append(wxID_OPEN, _T("&Open\tCtrl+O"), _T("Open a file"));
fileMenu->Append(wxID_SAVE, _T("&Save\tCtrl+S"), _T("Save a file"));
fileMenu->Append(wxID_SAVEAS, _T("&Save As...\tF12"), _T("Save to a new file"));
fileMenu->AppendSeparator();
fileMenu->Append(ID_VIEW_HTML, _T("&View as HTML"), _T("View HTML"));
fileMenu->AppendSeparator();
fileMenu->Append(ID_Quit, _T("E&xit\tAlt+X"), _T("Quit this program"));
wxMenu* editMenu = new wxMenu;
editMenu->Append(wxID_UNDO, _("&Undo\tCtrl+Z"));
editMenu->Append(wxID_REDO, _("&Redo\tCtrl+Y"));
editMenu->AppendSeparator();
editMenu->Append(wxID_CUT, _("Cu&t\tCtrl+X"));
editMenu->Append(wxID_COPY, _("&Copy\tCtrl+C"));
editMenu->Append(wxID_PASTE, _("&Paste\tCtrl+V"));
editMenu->Append(wxID_CLEAR, _("&Delete\tDel"));
editMenu->AppendSeparator();
editMenu->Append(wxID_SELECTALL, _("Select A&ll\tCtrl+A"));
#if 0
editMenu->AppendSeparator();
editMenu->Append(wxID_FIND, _("&Find...\tCtrl+F"));
editMenu->Append(stID_FIND_REPLACE, _("&Replace...\tCtrl+R"));
#endif
wxMenu* formatMenu = new wxMenu;
formatMenu->AppendCheckItem(ID_FORMAT_BOLD, _("&Bold\tCtrl+B"));
formatMenu->AppendCheckItem(ID_FORMAT_ITALIC, _("&Italic\tCtrl+I"));
formatMenu->AppendCheckItem(ID_FORMAT_UNDERLINE, _("&Underline\tCtrl+U"));
formatMenu->AppendSeparator();
formatMenu->AppendCheckItem(ID_FORMAT_ALIGN_LEFT, _("L&eft Align"));
formatMenu->AppendCheckItem(ID_FORMAT_ALIGN_RIGHT, _("&Right Align"));
formatMenu->AppendCheckItem(ID_FORMAT_ALIGN_CENTRE, _("&Centre"));
formatMenu->AppendSeparator();
formatMenu->Append(ID_FORMAT_INDENT_MORE, _("Indent &More"));
formatMenu->Append(ID_FORMAT_INDENT_LESS, _("Indent &Less"));
formatMenu->AppendSeparator();
formatMenu->Append(ID_FORMAT_PARAGRAPH_SPACING_MORE, _("Increase Paragraph &Spacing"));
formatMenu->Append(ID_FORMAT_PARAGRAPH_SPACING_LESS, _("Decrease &Paragraph Spacing"));
formatMenu->AppendSeparator();
formatMenu->Append(ID_FORMAT_LINE_SPACING_SINGLE, _("Normal Line Spacing"));
formatMenu->Append(ID_FORMAT_LINE_SPACING_HALF, _("1.5 Line Spacing"));
formatMenu->Append(ID_FORMAT_LINE_SPACING_DOUBLE, _("Double Line Spacing"));
formatMenu->AppendSeparator();
formatMenu->Append(ID_FORMAT_FONT, _("&Font..."));
formatMenu->AppendSeparator();
formatMenu->Append(ID_SWITCH_STYLE_SHEETS, _("&Switch Style Sheets"));
// now append the freshly created menu to the menu bar...
wxMenuBar *menuBar = new wxMenuBar();
menuBar->Append(fileMenu, _T("&File"));
menuBar->Append(editMenu, _T("&Edit"));
menuBar->Append(formatMenu, _T("F&ormat"));
menuBar->Append(helpMenu, _T("&Help"));
// ... and attach this menu bar to the frame
SetMenuBar(menuBar);
// create a status bar just for fun (by default with 1 pane only)
// but don't create it on limited screen space (WinCE)
bool is_pda = wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA;
#if wxUSE_STATUSBAR
if ( !is_pda )
{
CreateStatusBar(2);
SetStatusText(_T("Welcome to wxRichTextCtrl!"));
}
#endif
wxToolBar* toolBar = CreateToolBar();
toolBar->AddTool(wxID_OPEN, wxBitmap(open_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Open"));
toolBar->AddTool(wxID_SAVEAS, wxBitmap(save_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Save"));
toolBar->AddSeparator();
toolBar->AddTool(wxID_CUT, wxBitmap(cut_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Cut"));
toolBar->AddTool(wxID_COPY, wxBitmap(copy_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Copy"));
toolBar->AddTool(wxID_PASTE, wxBitmap(paste_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Paste"));
toolBar->AddSeparator();
toolBar->AddTool(wxID_UNDO, wxBitmap(undo_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Undo"));
toolBar->AddTool(wxID_REDO, wxBitmap(redo_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Redo"));
toolBar->AddSeparator();
toolBar->AddTool(ID_FORMAT_BOLD, wxBitmap(bold_xpm), wxNullBitmap, true, -1, -1, (wxObject *) NULL, _("Bold"));
toolBar->AddTool(ID_FORMAT_ITALIC, wxBitmap(italic_xpm), wxNullBitmap, true, -1, -1, (wxObject *) NULL, _("Italic"));
toolBar->AddTool(ID_FORMAT_UNDERLINE, wxBitmap(underline_xpm), wxNullBitmap, true, -1, -1, (wxObject *) NULL, _("Underline"));
toolBar->AddSeparator();
toolBar->AddTool(ID_FORMAT_ALIGN_LEFT, wxBitmap(alignleft_xpm), wxNullBitmap, true, -1, -1, (wxObject *) NULL, _("Align Left"));
toolBar->AddTool(ID_FORMAT_ALIGN_CENTRE, wxBitmap(centre_xpm), wxNullBitmap, true, -1, -1, (wxObject *) NULL, _("Centre"));
toolBar->AddTool(ID_FORMAT_ALIGN_RIGHT, wxBitmap(alignright_xpm), wxNullBitmap, true, -1, -1, (wxObject *) NULL, _("Align Right"));
toolBar->AddSeparator();
toolBar->AddTool(ID_FORMAT_INDENT_LESS, wxBitmap(indentless_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Indent Less"));
toolBar->AddTool(ID_FORMAT_INDENT_MORE, wxBitmap(indentmore_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Indent More"));
toolBar->AddSeparator();
toolBar->AddTool(ID_FORMAT_FONT, wxBitmap(font_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Font"));
wxRichTextStyleComboCtrl* combo = new wxRichTextStyleComboCtrl(toolBar, ID_RICHTEXT_STYLE_COMBO, wxDefaultPosition, wxSize(200, -1));
toolBar->AddControl(combo);
toolBar->Realize();
wxSplitterWindow* splitter = new wxSplitterWindow(this, wxID_ANY, wxDefaultPosition, GetClientSize(), wxSP_NO_XP_THEME|wxSP_3D|wxSP_LIVE_UPDATE);
wxFont textFont = wxFont(12, wxROMAN, wxNORMAL, wxNORMAL);
wxFont boldFont = wxFont(12, wxROMAN, wxNORMAL, wxBOLD);
wxFont italicFont = wxFont(12, wxROMAN, wxITALIC, wxNORMAL);
m_richTextCtrl = new wxRichTextCtrl(splitter, ID_RICHTEXT_CTRL, wxEmptyString, wxDefaultPosition, wxSize(200, 200), wxVSCROLL|wxHSCROLL|wxNO_BORDER|wxWANTS_CHARS);
wxFont font(12, wxROMAN, wxNORMAL, wxNORMAL);
m_richTextCtrl->SetFont(font);
m_richTextCtrl->SetStyleSheet(wxGetApp().GetStyleSheet());
combo->SetStyleSheet(wxGetApp().GetStyleSheet());
combo->SetRichTextCtrl(m_richTextCtrl);
combo->UpdateStyles();
wxRichTextStyleListBox* styleListBox = new wxRichTextStyleListBox(splitter, ID_RICHTEXT_STYLE_LIST);
wxSize display = wxGetDisplaySize();
if ( is_pda && ( display.GetWidth() < display.GetHeight() ) )
{
splitter->SplitHorizontally(m_richTextCtrl, styleListBox);
}
else
{
splitter->SplitVertically(m_richTextCtrl, styleListBox, 500);
}
splitter->UpdateSize();
styleListBox->SetStyleSheet(wxGetApp().GetStyleSheet());
styleListBox->SetRichTextCtrl(m_richTextCtrl);
styleListBox->UpdateStyles();
wxRichTextCtrl& r = *m_richTextCtrl;
r.BeginSuppressUndo();
r.BeginParagraphSpacing(0, 20);
r.BeginAlignment(wxTEXT_ALIGNMENT_CENTRE);
r.BeginBold();
r.BeginFontSize(14);
r.WriteText(wxT("Welcome to wxRichTextCtrl, a wxWidgets control for editing and presenting styled text and images"));
r.EndFontSize();
r.Newline();
r.BeginItalic();
r.WriteText(wxT("by Julian Smart"));
r.EndItalic();
r.EndBold();
r.Newline();
r.WriteImage(wxBitmap(zebra_xpm));
r.EndAlignment();
r.Newline();
r.Newline();
r.WriteText(wxT("What can you do with this thing? "));
r.WriteImage(wxBitmap(smiley_xpm));
r.WriteText(wxT(" Well, you can change text "));
r.BeginTextColour(wxColour(255, 0, 0));
r.WriteText(wxT("colour, like this red bit."));
r.EndTextColour();
r.BeginTextColour(wxColour(0, 0, 255));
r.WriteText(wxT(" And this blue bit."));
r.EndTextColour();
r.WriteText(wxT(" Naturally you can make things "));
r.BeginBold();
r.WriteText(wxT("bold "));
r.EndBold();
r.BeginItalic();
r.WriteText(wxT("or italic "));
r.EndItalic();
r.BeginUnderline();
r.WriteText(wxT("or underlined."));
r.EndUnderline();
r.BeginFontSize(14);
r.WriteText(wxT(" Different font sizes on the same line is allowed, too."));
r.EndFontSize();
r.WriteText(wxT(" Next we'll show an indented paragraph."));
r.BeginLeftIndent(60);
r.Newline();
r.WriteText(wxT("It was in January, the most down-trodden month of an Edinburgh winter. An attractive woman came into the cafe, which is nothing remarkable."));
r.EndLeftIndent();
r.Newline();
r.WriteText(wxT("Next, we'll show a first-line indent, achieved using BeginLeftIndent(100, -40)."));
r.BeginLeftIndent(100, -40);
r.Newline();
r.WriteText(wxT("It was in January, the most down-trodden month of an Edinburgh winter. An attractive woman came into the cafe, which is nothing remarkable."));
r.EndLeftIndent();
r.Newline();
r.WriteText(wxT("Numbered bullets are possible, again using subindents:"));
r.BeginNumberedBullet(1, 100, 60);
r.Newline();
r.WriteText(wxT("This is my first item. Note that wxRichTextCtrl doesn't automatically do numbering, but this will be added later."));
r.EndNumberedBullet();
r.BeginNumberedBullet(2, 100, 60);
r.Newline();
r.WriteText(wxT("This is my second item."));
r.EndNumberedBullet();
r.Newline();
r.WriteText(wxT("The following paragraph is right-indented:"));
r.BeginRightIndent(200);
r.Newline();
r.WriteText(wxT("It was in January, the most down-trodden month of an Edinburgh winter. An attractive woman came into the cafe, which is nothing remarkable."));
r.EndRightIndent();
r.Newline();
r.WriteText(wxT("The following paragraph is right-aligned with 1.5 line spacing:"));
r.BeginAlignment(wxTEXT_ALIGNMENT_RIGHT);
r.BeginLineSpacing(wxTEXT_ATTR_LINE_SPACING_HALF);
r.Newline();
r.WriteText(wxT("It was in January, the most down-trodden month of an Edinburgh winter. An attractive woman came into the cafe, which is nothing remarkable."));
r.EndLineSpacing();
r.EndAlignment();
wxArrayInt tabs;
tabs.Add(400);
tabs.Add(600);
tabs.Add(800);
tabs.Add(1000);
wxTextAttrEx attr;
attr.SetFlags(wxTEXT_ATTR_TABS);
attr.SetTabs(tabs);
r.SetDefaultStyle(attr);
r.Newline();
r.WriteText(wxT("This line contains tabs:\tFirst tab\tSecond tab\tThird tab"));
r.Newline();
r.WriteText(wxT("Other notable features of wxRichTextCtrl include:"));
r.BeginSymbolBullet(wxT('*'), 100, 60);
r.Newline();
r.WriteText(wxT("Compatibility with wxTextCtrl API"));
r.EndSymbolBullet();
r.BeginSymbolBullet(wxT('*'), 100, 60);
r.Newline();
r.WriteText(wxT("Easy stack-based BeginXXX()...EndXXX() style setting in addition to SetStyle()"));
r.EndSymbolBullet();
r.BeginSymbolBullet(wxT('*'), 100, 60);
r.Newline();
r.WriteText(wxT("XML loading and saving"));
r.EndSymbolBullet();
r.BeginSymbolBullet(wxT('*'), 100, 60);
r.Newline();
r.WriteText(wxT("Undo/Redo, with batching option and Undo suppressing"));
r.EndSymbolBullet();
r.BeginSymbolBullet(wxT('*'), 100, 60);
r.Newline();
r.WriteText(wxT("Clipboard copy and paste"));
r.EndSymbolBullet();
r.BeginSymbolBullet(wxT('*'), 100, 60);
r.Newline();
r.WriteText(wxT("wxRichTextStyleSheet with named character and paragraph styles, and control for applying named styles"));
r.EndSymbolBullet();
r.BeginSymbolBullet(wxT('*'), 100, 60);
r.Newline();
r.WriteText(wxT("A design that can easily be extended to other content types, ultimately with text boxes, tables, controls, and so on"));
r.EndSymbolBullet();
r.Newline();
r.WriteText(wxT("Note: this sample content was generated programmatically from within the MyFrame constructor in the demo. The images were loaded from inline XPMs. Enjoy wxRichTextCtrl!"));
r.EndParagraphSpacing();
r.EndSuppressUndo();
}
// event handlers
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
// true is to force the frame to close
Close(true);
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxString msg;
msg.Printf( _T("This is a demo for wxRichTextCtrl, a control for editing styled text.\n(c) Julian Smart, 2005"));
wxMessageBox(msg, _T("About wxRichTextCtrl Sample"), wxOK | wxICON_INFORMATION, this);
}
// Forward command events to the current rich text control, if any
bool MyFrame::ProcessEvent(wxEvent& event)
{
if (event.IsCommandEvent() && !event.IsKindOf(CLASSINFO(wxChildFocusEvent)))
{
// Problem: we can get infinite recursion because the events
// climb back up to this frame, and repeat.
// Assume that command events don't cause another command event
// to be called, so we can rely on inCommand not being overwritten
static int s_eventType = 0;
static wxWindowID s_id = 0;
if (s_id != event.GetId() && s_eventType != event.GetEventType())
{
s_eventType = event.GetEventType();
s_id = event.GetId();
wxWindow* focusWin = wxFindFocusDescendant(this);
if (focusWin && focusWin->ProcessEvent(event))
{
//s_command = NULL;
s_eventType = 0;
s_id = 0;
return true;
}
s_eventType = 0;
s_id = 0;
}
else
{
return false;
}
}
return wxFrame::ProcessEvent(event);
}
void MyFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
{
wxString path;
wxString filename;
wxArrayInt fileTypes;
wxString filter = wxRichTextBuffer::GetExtWildcard(false, false, & fileTypes);
if (!filter.empty())
filter += wxT("|");
filter += wxT("All files (*.*)|*.*");
wxFileDialog dialog(this,
_("Choose a filename"),
path,
filename,
filter,
wxFD_OPEN);
if (dialog.ShowModal() == wxID_OK)
{
wxString path = dialog.GetPath();
if (!path.empty())
{
int filterIndex = dialog.GetFilterIndex();
int fileType = (filterIndex < (int) fileTypes.GetCount())
? fileTypes[filterIndex]
: wxRICHTEXT_TYPE_TEXT;
m_richTextCtrl->LoadFile(path, fileType);
}
}
}
void MyFrame::OnSave(wxCommandEvent& event)
{
if (m_richTextCtrl->GetFilename().empty())
{
OnSaveAs(event);
return;
}
m_richTextCtrl->SaveFile();
}
void MyFrame::OnSaveAs(wxCommandEvent& WXUNUSED(event))
{
wxString filter = wxRichTextBuffer::GetExtWildcard(false, true);
wxString path;
wxString filename;
wxFileDialog dialog(this,
_("Choose a filename"),
path,
filename,
filter,
wxFD_SAVE);
if (dialog.ShowModal() == wxID_OK)
{
wxString path = dialog.GetPath();
if (!path.empty())
{
m_richTextCtrl->SaveFile(path);
}
}
}
void MyFrame::OnBold(wxCommandEvent& WXUNUSED(event))
{
m_richTextCtrl->ApplyBoldToSelection();
}
void MyFrame::OnItalic(wxCommandEvent& WXUNUSED(event))
{
m_richTextCtrl->ApplyItalicToSelection();
}
void MyFrame::OnUnderline(wxCommandEvent& WXUNUSED(event))
{
m_richTextCtrl->ApplyUnderlineToSelection();
}
void MyFrame::OnUpdateBold(wxUpdateUIEvent& event)
{
event.Check(m_richTextCtrl->IsSelectionBold());
}
void MyFrame::OnUpdateItalic(wxUpdateUIEvent& event)
{
event.Check(m_richTextCtrl->IsSelectionItalics());
}
void MyFrame::OnUpdateUnderline(wxUpdateUIEvent& event)
{
event.Check(m_richTextCtrl->IsSelectionUnderlined());
}
void MyFrame::OnAlignLeft(wxCommandEvent& WXUNUSED(event))
{
m_richTextCtrl->ApplyAlignmentToSelection(wxTEXT_ALIGNMENT_LEFT);
}
void MyFrame::OnAlignCentre(wxCommandEvent& WXUNUSED(event))
{
m_richTextCtrl->ApplyAlignmentToSelection(wxTEXT_ALIGNMENT_CENTRE);
}
void MyFrame::OnAlignRight(wxCommandEvent& WXUNUSED(event))
{
m_richTextCtrl->ApplyAlignmentToSelection(wxTEXT_ALIGNMENT_RIGHT);
}
void MyFrame::OnUpdateAlignLeft(wxUpdateUIEvent& event)
{
event.Check(m_richTextCtrl->IsSelectionAligned(wxTEXT_ALIGNMENT_LEFT));
}
void MyFrame::OnUpdateAlignCentre(wxUpdateUIEvent& event)
{
event.Check(m_richTextCtrl->IsSelectionAligned(wxTEXT_ALIGNMENT_CENTRE));
}
void MyFrame::OnUpdateAlignRight(wxUpdateUIEvent& event)
{
event.Check(m_richTextCtrl->IsSelectionAligned(wxTEXT_ALIGNMENT_RIGHT));
}
void MyFrame::OnFont(wxCommandEvent& WXUNUSED(event))
{
if (!m_richTextCtrl->HasSelection())
return;
wxRichTextRange range = m_richTextCtrl->GetSelectionRange();
wxFontData fontData;
wxTextAttrEx attr;
attr.SetFlags(wxTEXT_ATTR_FONT);
if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
fontData.SetInitialFont(attr.GetFont());
wxFontDialog dialog(this, fontData);
if (dialog.ShowModal() == wxID_OK)
{
fontData = dialog.GetFontData();
attr.SetFlags(wxTEXT_ATTR_FONT);
attr.SetFont(fontData.GetChosenFont());
if (attr.GetFont().Ok())
{
m_richTextCtrl->SetStyle(range, attr);
}
}
}
void MyFrame::OnIndentMore(wxCommandEvent& WXUNUSED(event))
{
wxTextAttrEx attr;
attr.SetFlags(wxTEXT_ATTR_LEFT_INDENT);
if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
{
wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
if (m_richTextCtrl->HasSelection())
range = m_richTextCtrl->GetSelectionRange();
wxFontData fontData;
attr.SetLeftIndent(attr.GetLeftIndent() + 100);
attr.SetFlags(wxTEXT_ATTR_LEFT_INDENT);
m_richTextCtrl->SetStyle(range, attr);
}
}
void MyFrame::OnIndentLess(wxCommandEvent& WXUNUSED(event))
{
wxTextAttrEx attr;
attr.SetFlags(wxTEXT_ATTR_LEFT_INDENT);
if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
{
wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
if (m_richTextCtrl->HasSelection())
range = m_richTextCtrl->GetSelectionRange();
if (attr.GetLeftIndent() >= 100)
{
wxFontData fontData;
attr.SetLeftIndent(attr.GetLeftIndent() - 100);
m_richTextCtrl->SetStyle(range, attr);
}
}
}
void MyFrame::OnLineSpacingHalf(wxCommandEvent& WXUNUSED(event))
{
wxTextAttrEx attr;
attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
{
wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
if (m_richTextCtrl->HasSelection())
range = m_richTextCtrl->GetSelectionRange();
wxFontData fontData;
attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
attr.SetLineSpacing(15);
m_richTextCtrl->SetStyle(range, attr);
}
}
void MyFrame::OnLineSpacingDouble(wxCommandEvent& WXUNUSED(event))
{
wxTextAttrEx attr;
attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
{
wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
if (m_richTextCtrl->HasSelection())
range = m_richTextCtrl->GetSelectionRange();
wxFontData fontData;
attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
attr.SetLineSpacing(20);
m_richTextCtrl->SetStyle(range, attr);
}
}
void MyFrame::OnLineSpacingSingle(wxCommandEvent& WXUNUSED(event))
{
wxTextAttrEx attr;
attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
{
wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
if (m_richTextCtrl->HasSelection())
range = m_richTextCtrl->GetSelectionRange();
wxFontData fontData;
attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
attr.SetLineSpacing(0); // Can also use 10
m_richTextCtrl->SetStyle(range, attr);
}
}
void MyFrame::OnParagraphSpacingMore(wxCommandEvent& WXUNUSED(event))
{
wxTextAttrEx attr;
attr.SetFlags(wxTEXT_ATTR_PARA_SPACING_AFTER);
if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
{
wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
if (m_richTextCtrl->HasSelection())
range = m_richTextCtrl->GetSelectionRange();
wxFontData fontData;
attr.SetParagraphSpacingAfter(attr.GetParagraphSpacingAfter() + 20);
attr.SetFlags(wxTEXT_ATTR_PARA_SPACING_AFTER);
m_richTextCtrl->SetStyle(range, attr);
}
}
void MyFrame::OnParagraphSpacingLess(wxCommandEvent& WXUNUSED(event))
{
wxTextAttrEx attr;
attr.SetFlags(wxTEXT_ATTR_PARA_SPACING_AFTER);
if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
{
wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
if (m_richTextCtrl->HasSelection())
range = m_richTextCtrl->GetSelectionRange();
if (attr.GetParagraphSpacingAfter() >= 20)
{
wxFontData fontData;
attr.SetParagraphSpacingAfter(attr.GetParagraphSpacingAfter() - 20);
attr.SetFlags(wxTEXT_ATTR_PARA_SPACING_AFTER);
m_richTextCtrl->SetStyle(range, attr);
}
}
}
void MyFrame::OnViewHTML(wxCommandEvent& WXUNUSED(event))
{
wxDialog dialog(this, wxID_ANY, _("HTML"), wxDefaultPosition, wxSize(500, 400), wxDEFAULT_DIALOG_STYLE);
wxBoxSizer* boxSizer = new wxBoxSizer(wxVERTICAL);
dialog.SetSizer(boxSizer);
wxHtmlWindow* win = new wxHtmlWindow(& dialog, wxID_ANY, wxDefaultPosition, wxSize(500, 400), wxSUNKEN_BORDER);
boxSizer->Add(win, 1, wxALL, 5);
wxButton* cancelButton = new wxButton(& dialog, wxID_CANCEL, wxT("&Close"));
boxSizer->Add(cancelButton, 0, wxALL|wxCENTRE, 5);
wxString text;
wxStringOutputStream strStream(& text);
wxRichTextHTMLHandler htmlHandler;
if (htmlHandler.SaveFile(& m_richTextCtrl->GetBuffer(), strStream))
{
win->SetPage(text);
}
boxSizer->Fit(& dialog);
dialog.ShowModal();
}
// Demonstrates how you can change the style sheets and have the changes
// reflected in the control content without wiping out character formatting.
void MyFrame::OnSwitchStyleSheets(wxCommandEvent& WXUNUSED(event))
{
static wxRichTextStyleSheet* gs_AlternateStyleSheet = NULL;
wxRichTextCtrl* ctrl = (wxRichTextCtrl*) FindWindow(ID_RICHTEXT_CTRL);
wxRichTextStyleListBox* styleList = (wxRichTextStyleListBox*) FindWindow(ID_RICHTEXT_STYLE_LIST);
wxRichTextStyleComboCtrl* styleCombo = (wxRichTextStyleComboCtrl*) FindWindow(ID_RICHTEXT_STYLE_COMBO);
wxRichTextStyleSheet* sheet = ctrl->GetStyleSheet();
// One-time creation of an alternate style sheet
if (!gs_AlternateStyleSheet)
{
gs_AlternateStyleSheet = new wxRichTextStyleSheet(*sheet);
// Make some modifications
for (int i = 0; i < (int) gs_AlternateStyleSheet->GetParagraphStyleCount(); i++)
{
wxRichTextParagraphStyleDefinition* def = gs_AlternateStyleSheet->GetParagraphStyle(i);
if (def->GetStyle().HasTextColour())
def->GetStyle().SetTextColour(*wxBLUE);
if (def->GetStyle().HasAlignment())
{
if (def->GetStyle().GetAlignment() == wxTEXT_ALIGNMENT_CENTRE)
def->GetStyle().SetAlignment(wxTEXT_ALIGNMENT_RIGHT);
else if (def->GetStyle().GetAlignment() == wxTEXT_ALIGNMENT_LEFT)
def->GetStyle().SetAlignment(wxTEXT_ALIGNMENT_CENTRE);
}
if (def->GetStyle().HasLeftIndent())
{
def->GetStyle().SetLeftIndent(def->GetStyle().GetLeftIndent() * 2);
}
}
}
// Switch sheets
wxRichTextStyleSheet* tmp = gs_AlternateStyleSheet;
gs_AlternateStyleSheet = sheet;
sheet = tmp;
ctrl->SetStyleSheet(sheet);
ctrl->ApplyStyleSheet(sheet); // Makes the control reflect the new style definitions
styleList->SetStyleSheet(sheet);
styleList->UpdateStyles();
styleCombo->SetStyleSheet(sheet);
styleCombo->UpdateStyles();
}
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