overload operator<<() for wchar_t too (if applicable/possible); this fixes the proble...

[wxWidgets.git] / src / common / textcmn.cpp

diff --git a/src/common/textcmn.cpp b/src/common/textcmn.cpp
index 8b5744f1bf5815e5f37c47ed5218c7756d782dfe..1b2b1f1532a2e723ff59c7a762ad81df78de2771 100644 (file)
--- a/src/common/textcmn.cpp
+++ b/src/common/textcmn.cpp
@@ -5,15 +5,15 @@
 // Modified by:
 // Created:     13.07.99
 // RCS-ID:      $Id$
 // Modified by:
 // Created:     13.07.99
 // RCS-ID:      $Id$

-// Copyright:   (c) wxWindows team
-// Licence:     wxWindows license
+// Copyright:   (c) wxWidgets team
+// Licence:     wxWindows licence

 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
 // declarations
 // ============================================================================
 
 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
 // declarations
 // ============================================================================
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

     #pragma implementation "textctrlbase.h"
 #endif
 
     #pragma implementation "textctrlbase.h"
 #endif
 


@@ -69,6 +69,103 @@ wxTextCtrlBase::~wxTextCtrlBase()
 // style functions - not implemented here
 // ----------------------------------------------------------------------------
 
 // style functions - not implemented here
 // ----------------------------------------------------------------------------
 

+wxTextAttr::wxTextAttr(const wxColour& colText,
+               const wxColour& colBack,
+               const wxFont& font,
+               wxTextAttrAlignment alignment)
+    : m_colText(colText), m_colBack(colBack), m_font(font), m_textAlignment(alignment)
+{
+    m_flags = 0;
+    m_leftIndent = 0;
+    m_leftSubIndent = 0;
+    m_rightIndent = 0;
+    if (m_colText.Ok()) m_flags |= wxTEXT_ATTR_TEXT_COLOUR;
+    if (m_colBack.Ok()) m_flags |= wxTEXT_ATTR_BACKGROUND_COLOUR;
+    if (m_font.Ok()) m_flags |= wxTEXT_ATTR_FONT;
+    if (alignment != wxTEXT_ALIGNMENT_DEFAULT)
+        m_flags |= wxTEXT_ATTR_ALIGNMENT;
+}
+
+void wxTextAttr::Init()
+{
+    m_textAlignment = wxTEXT_ALIGNMENT_DEFAULT;
+    m_flags = 0;
+    m_leftIndent = 0;
+    m_leftSubIndent = 0;
+    m_rightIndent = 0;
+}
+
+/* static */
+wxTextAttr wxTextAttr::Combine(const wxTextAttr& attr,
+                               const wxTextAttr& attrDef,
+                               const wxTextCtrlBase *text)
+{
+    wxFont font = attr.GetFont();
+    if ( !font.Ok() )
+    {
+        font = attrDef.GetFont();
+
+        if ( text && !font.Ok() )
+            font = text->GetFont();
+    }
+
+    wxColour colFg = attr.GetTextColour();
+    if ( !colFg.Ok() )
+    {
+        colFg = attrDef.GetTextColour();
+
+        if ( text && !colFg.Ok() )
+            colFg = text->GetForegroundColour();
+    }
+
+    wxColour colBg = attr.GetBackgroundColour();
+    if ( !colBg.Ok() )
+    {
+        colBg = attrDef.GetBackgroundColour();
+
+        if ( text && !colBg.Ok() )
+            colBg = text->GetBackgroundColour();
+    }
+
+    wxTextAttr newAttr(colFg, colBg, font);
+    
+    if (attr.HasAlignment())
+        newAttr.SetAlignment(attr.GetAlignment());
+    else if (attrDef.HasAlignment())
+        newAttr.SetAlignment(attrDef.GetAlignment());
+    
+    if (attr.HasTabs())
+        newAttr.SetTabs(attr.GetTabs());
+    else if (attrDef.HasTabs())
+        newAttr.SetTabs(attrDef.GetTabs());
+    
+    if (attr.HasLeftIndent())
+        newAttr.SetLeftIndent(attr.GetLeftIndent(), attr.GetLeftSubIndent());
+    else if (attrDef.HasLeftIndent())
+        newAttr.SetLeftIndent(attrDef.GetLeftIndent(), attr.GetLeftSubIndent());
+    
+    if (attr.HasRightIndent())
+        newAttr.SetRightIndent(attr.GetRightIndent());
+    else if (attrDef.HasRightIndent())
+        newAttr.SetRightIndent(attrDef.GetRightIndent());    
+    
+    return newAttr;
+}
+
+void wxTextAttr::operator= (const wxTextAttr& attr)
+{
+    m_font = attr.m_font;
+    m_colText = attr.m_colText;
+    m_colBack = attr.m_colBack;
+    m_textAlignment = attr.m_textAlignment;
+    m_leftIndent = attr.m_leftIndent;
+    m_leftSubIndent = attr.m_leftSubIndent;
+    m_rightIndent = attr.m_rightIndent;
+    m_tabs = attr.m_tabs;
+    m_flags = attr.m_flags;
+}
+
+

 // apply styling to text range
 bool wxTextCtrlBase::SetStyle(long WXUNUSED(start), long WXUNUSED(end),
                               const wxTextAttr& WXUNUSED(style))
 // apply styling to text range
 bool wxTextCtrlBase::SetStyle(long WXUNUSED(start), long WXUNUSED(end),
                               const wxTextAttr& WXUNUSED(style))


@@ -77,10 +174,24 @@ bool wxTextCtrlBase::SetStyle(long WXUNUSED(start), long WXUNUSED(end),
     return FALSE;
 }
 
     return FALSE;
 }
 

+// get the styling at the given position
+bool wxTextCtrlBase::GetStyle(long WXUNUSED(position), wxTextAttr& WXUNUSED(style))
+{
+    // to be implemented in derived TextCtrl classes
+    return FALSE;
+}
+

 // change default text attributes
 // change default text attributes

-bool wxTextCtrlBase::SetDefaultStyle(const wxTextAttr &style)
+bool wxTextCtrlBase::SetDefaultStyle(const wxTextAttr& style)

 {
 {

-    m_defaultStyle = style;
+    // keep the old attributes if the new style doesn't specify them unless the
+    // new style is empty - then reset m_defaultStyle (as there is no other way
+    // to do it)
+    if ( style.IsDefault() )
+        m_defaultStyle = style;
+    else
+        m_defaultStyle = wxTextAttr::Combine(style, m_defaultStyle, this);
+

     return TRUE;
 }
 
     return TRUE;
 }
 


@@ -122,7 +233,7 @@ bool wxTextCtrlBase::LoadFile(const wxString& filename)
 bool wxTextCtrlBase::SaveFile(const wxString& filename)
 {
     wxString filenameToUse = filename.IsEmpty() ? m_filename : filename;
 bool wxTextCtrlBase::SaveFile(const wxString& filename)
 {
     wxString filenameToUse = filename.IsEmpty() ? m_filename : filename;

-    if ( !filenameToUse )
+    if ( filenameToUse.empty() )

     {
         // what kind of message to give? is it an error or a program bug?
         wxLogDebug(wxT("Can't save textctrl to file without filename."));
     {
         // what kind of message to give? is it an error or a program bug?
         wxLogDebug(wxT("Can't save textctrl to file without filename."));


@@ -131,19 +242,20 @@ bool wxTextCtrlBase::SaveFile(const wxString& filename)
     }
 
 #if wxUSE_FFILE
     }
 
 #if wxUSE_FFILE

-    wxFFile file(filename, "w");
+    wxFFile file(filenameToUse, _T("w"));

     if ( file.IsOpened() && file.Write(GetValue()) )
     {
         // it's not modified any longer
         DiscardEdits();
 
     if ( file.IsOpened() && file.Write(GetValue()) )
     {
         // it's not modified any longer
         DiscardEdits();
 

-        m_filename = filename;
+        // if it worked, save for future calls
+        m_filename = filenameToUse;

 
         return TRUE;
     }
 
         return TRUE;
     }

+#endif // wxUSE_FFILE

 
     wxLogError(_("The text couldn't be saved."));
 
     wxLogError(_("The text couldn't be saved."));

-#endif // wxUSE_FFILE

 
     return FALSE;
 }
 
     return FALSE;
 }


@@ -236,7 +348,110 @@ bool wxTextCtrlBase::CanPaste() const
 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------

-// misc
+// emulating key presses
+// ----------------------------------------------------------------------------
+
+#ifdef __WIN32__
+// the generic version is unused in wxMSW
+bool wxTextCtrlBase::EmulateKeyPress(const wxKeyEvent& WXUNUSED(event))
+{
+    return FALSE;
+}
+#else // !__WIN32__
+bool wxTextCtrlBase::EmulateKeyPress(const wxKeyEvent& event)
+{
+    wxChar ch = 0;
+    int keycode = event.GetKeyCode();
+    switch ( keycode )
+    {
+        case WXK_NUMPAD0:
+        case WXK_NUMPAD1:
+        case WXK_NUMPAD2:
+        case WXK_NUMPAD3:
+        case WXK_NUMPAD4:
+        case WXK_NUMPAD5:
+        case WXK_NUMPAD6:
+        case WXK_NUMPAD7:
+        case WXK_NUMPAD8:
+        case WXK_NUMPAD9:
+            ch = _T('0') + keycode - WXK_NUMPAD0;
+            break;
+
+        case WXK_MULTIPLY:
+        case WXK_NUMPAD_MULTIPLY:
+            ch = _T('*');
+            break;
+
+        case WXK_ADD:
+        case WXK_NUMPAD_ADD:
+            ch = _T('+');
+            break;
+
+        case WXK_SUBTRACT:
+        case WXK_NUMPAD_SUBTRACT:
+            ch = _T('-');
+            break;
+
+        case WXK_DECIMAL:
+        case WXK_NUMPAD_DECIMAL:
+            ch = _T('.');
+            break;
+
+        case WXK_DIVIDE:
+        case WXK_NUMPAD_DIVIDE:
+            ch = _T('/');
+            break;
+
+        case WXK_DELETE:
+        case WXK_NUMPAD_DELETE:
+            // delete the character at cursor
+            {
+                const long pos = GetInsertionPoint(),
+                           last = GetLastPosition();
+                if ( pos < last )
+                    Remove(pos, pos + 1);
+            }
+            break;
+
+        case WXK_BACK:
+            // delete the character before the cursor
+            {
+                const long pos = GetInsertionPoint();
+                if ( pos > 0 )
+                    Remove(pos - 1, pos);
+            }
+            break;
+
+        default:
+            if ( keycode < 256 && keycode >= 0 && wxIsprint(keycode) )
+            {
+                // FIXME this is not going to work for non letters...
+                if ( !event.ShiftDown() )
+                {
+                    keycode = wxTolower(keycode);
+                }
+
+                ch = (wxChar)keycode;
+            }
+            else
+            {
+                ch = _T('\0');
+            }
+    }
+
+    if ( ch )
+    {
+        WriteText(ch);
+
+        return TRUE;
+    }
+
+    return FALSE;
+}
+#endif // !__WIN32__
+
+// ----------------------------------------------------------------------------
+// selection and ranges

 // ----------------------------------------------------------------------------
 
 void wxTextCtrlBase::SelectAll()
 // ----------------------------------------------------------------------------
 
 void wxTextCtrlBase::SelectAll()


@@ -249,6 +464,11 @@ wxString wxTextCtrlBase::GetStringSelection() const
     long from, to;
     GetSelection(&from, &to);
 
     long from, to;
     GetSelection(&from, &to);
 

+    return GetRange(from, to);
+}
+
+wxString wxTextCtrlBase::GetRange(long from, long to) const
+{

     wxString sel;
     if ( from < to )
     {
     wxString sel;
     if ( from < to )
     {


@@ -258,6 +478,48 @@ wxString wxTextCtrlBase::GetStringSelection() const
     return sel;
 }
 
     return sel;
 }
 

+// do the window-specific processing after processing the update event
+void wxTextCtrlBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
+{
+    if ( event.GetSetEnabled() )
+        Enable(event.GetEnabled());
+    
+    if ( event.GetSetText() )
+    {
+        if ( event.GetText() != GetValue() )
+            SetValue(event.GetText());
+    }    
+}
+
+// ----------------------------------------------------------------------------
+// hit testing
+// ----------------------------------------------------------------------------
+
+wxTextCtrlHitTestResult
+wxTextCtrlBase::HitTest(const wxPoint& pt, wxTextCoord *x, wxTextCoord *y) const
+{
+    // implement in terms of the other overload as the native ports typically
+    // can get the position and not (x, y) pair directly (although wxUniv
+    // directly gets x and y -- and so overrides this method as well)
+    long pos;
+    wxTextCtrlHitTestResult rc = HitTest(pt, &pos);
+
+    if ( rc != wxTE_HT_UNKNOWN )
+    {
+        PositionToXY(pos, x, y);
+    }
+
+    return rc;
+}
+
+wxTextCtrlHitTestResult
+wxTextCtrlBase::HitTest(const wxPoint& WXUNUSED(pt),
+                        long * WXUNUSED(pos)) const
+{
+    // not implemented
+    return wxTE_HT_UNKNOWN;
+}
+

 #else // !wxUSE_TEXTCTRL
 
 // define this one even if !wxUSE_TEXTCTRL because it is also used by other
 #else // !wxUSE_TEXTCTRL
 
 // define this one even if !wxUSE_TEXTCTRL because it is also used by other