]> git.saurik.com Git - wxWidgets.git/blobdiff - src/common/stattextcmn.cpp
Allow retrieving the descent and external leading of empty strings.
[wxWidgets.git] / src / common / stattextcmn.cpp
index 184c9f1c983832e4230a41ae1d69b4bf7d72c936..66cfd3ba965be2d66fdd2fef0152f66f98e97044 100644 (file)
     #pragma hdrstop
 #endif
 
-#include "wx/private/stattext.h"
+#if wxUSE_STATTEXT
 
 #ifndef WX_PRECOMP
+    #include "wx/stattext.h"
     #include "wx/button.h"
     #include "wx/dcclient.h"
     #include "wx/intl.h"
+    #include "wx/log.h"
     #include "wx/settings.h"
-    #include "wx/stattext.h"
     #include "wx/sizer.h"
     #include "wx/containr.h"
 #endif
 
-#if wxUSE_STATTEXT
+#include "wx/textwrapper.h"
 
-const wxChar *wxMarkupEntities[][wxMARKUP_ENTITY_MAX] =
-{
-    // the entities handled by SetLabel() when wxST_MARKUP is used and their referenced string
+#include "wx/private/markupparser.h"
 
-    { wxT("&"), wxT("<"), wxT(">"), wxT("'"), wxT(""") },
-    { wxT("&"),     wxT("<"),    wxT(">"),    wxT("'"),      wxT("\"")     }
-};
+extern WXDLLEXPORT_DATA(const char) wxStaticTextNameStr[] = "staticText";
+
+// ----------------------------------------------------------------------------
+// XTI
+// ----------------------------------------------------------------------------
+
+wxDEFINE_FLAGS( wxStaticTextStyle )
+wxBEGIN_FLAGS( wxStaticTextStyle )
+// new style border flags, we put them first to
+// use them for streaming out
+wxFLAGS_MEMBER(wxBORDER_SIMPLE)
+wxFLAGS_MEMBER(wxBORDER_SUNKEN)
+wxFLAGS_MEMBER(wxBORDER_DOUBLE)
+wxFLAGS_MEMBER(wxBORDER_RAISED)
+wxFLAGS_MEMBER(wxBORDER_STATIC)
+wxFLAGS_MEMBER(wxBORDER_NONE)
+
+// old style border flags
+wxFLAGS_MEMBER(wxSIMPLE_BORDER)
+wxFLAGS_MEMBER(wxSUNKEN_BORDER)
+wxFLAGS_MEMBER(wxDOUBLE_BORDER)
+wxFLAGS_MEMBER(wxRAISED_BORDER)
+wxFLAGS_MEMBER(wxSTATIC_BORDER)
+wxFLAGS_MEMBER(wxBORDER)
+
+// standard window styles
+wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
+wxFLAGS_MEMBER(wxCLIP_CHILDREN)
+wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
+wxFLAGS_MEMBER(wxWANTS_CHARS)
+wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
+wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
+wxFLAGS_MEMBER(wxVSCROLL)
+wxFLAGS_MEMBER(wxHSCROLL)
+
+wxFLAGS_MEMBER(wxST_NO_AUTORESIZE)
+wxFLAGS_MEMBER(wxALIGN_LEFT)
+wxFLAGS_MEMBER(wxALIGN_RIGHT)
+wxFLAGS_MEMBER(wxALIGN_CENTRE)
+wxEND_FLAGS( wxStaticTextStyle )
+
+wxIMPLEMENT_DYNAMIC_CLASS_XTI(wxStaticText, wxControl, "wx/stattext.h")
+
+wxBEGIN_PROPERTIES_TABLE(wxStaticText)
+wxPROPERTY( Label,wxString, SetLabel, GetLabel, wxString(), 0 /*flags*/, \
+           wxT("Helpstring"), wxT("group"))
+wxPROPERTY_FLAGS( WindowStyle, wxStaticTextStyle, long, SetWindowStyleFlag, \
+                 GetWindowStyleFlag, wxEMPTY_PARAMETER_VALUE, 0 /*flags*/, \
+                 wxT("Helpstring"), wxT("group")) // style
+wxEND_PROPERTIES_TABLE()
+
+wxEMPTY_HANDLERS_TABLE(wxStaticText)
+
+wxCONSTRUCTOR_6( wxStaticText, wxWindow*, Parent, wxWindowID, Id, \
+                wxString, Label, wxPoint, Position, wxSize, Size, long, WindowStyle )
 
 
 // ----------------------------------------------------------------------------
@@ -53,36 +104,36 @@ const wxChar *wxMarkupEntities[][wxMARKUP_ENTITY_MAX] =
 
 void wxTextWrapper::Wrap(wxWindow *win, const wxString& text, int widthMax)
 {
-    const wxChar *lastSpace = NULL;
     wxString line;
 
-    const wxChar *lineStart = text.c_str();
-    for ( const wxChar *p = lineStart; ; p++ )
+    wxString::const_iterator lastSpace = text.end();
+    wxString::const_iterator lineStart = text.begin();
+    for ( wxString::const_iterator p = lineStart; ; ++p )
     {
         if ( IsStartOfNewLine() )
         {
             OnNewLine();
 
-            lastSpace = NULL;
+            lastSpace = text.end();
             line.clear();
             lineStart = p;
         }
 
-        if ( *p == _T('\n') || *p == _T('\0') )
+        if ( p == text.end() || *p == wxT('\n') )
         {
             DoOutputLine(line);
 
-            if ( *p == _T('\0') )
+            if ( p == text.end() )
                 break;
         }
         else // not EOL
         {
-            if ( *p == _T(' ') )
+            if ( *p == wxT(' ') )
                 lastSpace = p;
 
             line += *p;
 
-            if ( widthMax >= 0 && lastSpace )
+            if ( widthMax >= 0 && lastSpace != text.end() )
             {
                 int width;
                 win->GetTextExtent(line, &width, NULL);
@@ -126,7 +177,7 @@ protected:
 
     virtual void OnNewLine()
     {
-        m_text += _T('\n');
+        m_text += wxT('\n');
     }
 
 private:
@@ -144,123 +195,6 @@ void wxStaticTextBase::Wrap(int width)
     wrapper.WrapLabel(this, width);
 }
 
-wxString wxStaticTextBase::GetLabelText() const
-{
-    wxString ret(GetLabel());
-
-    if (HasFlag(wxST_MARKUP))
-        ret = RemoveMarkup(ret);
-    return RemoveMnemonics(ret);
-}
-
-/*static*/
-wxString wxStaticTextBase::RemoveMarkup(const wxString& text)
-{
-    // strip out of "text" the markup for platforms which don't support it natively
-    bool inside_tag = false;
-
-    wxString label;
-    const wxChar *source = text;
-    for (size_t i=0, max=text.length(); i<max; i++)
-    {
-        switch (source[i])
-        {
-            case wxT('<'):
-                if (inside_tag)
-                {
-                    wxLogDebug(wxT("Invalid markup !"));
-                    return wxEmptyString;
-                }
-                inside_tag = true;
-                break;
-
-            case wxT('>'):
-                if (!inside_tag)
-                {
-                    wxLogDebug(wxT("Invalid markup !"));
-                    return wxEmptyString;
-                }
-                inside_tag = false;
-                break;
-
-            case wxT('&'):
-                {
-                    if (i == max-1)
-                    {
-                        wxLogDebug(wxT("Cannot use & as last character of the string '%s'"),
-                                   text.c_str());
-                        return wxEmptyString;
-                    }
-
-                    // is this ampersand introducing a mnemonic or rather an entity?
-                    bool isMnemonic = true;
-                    for (size_t j=0; j < wxMARKUP_ENTITY_MAX; j++)
-                    {
-                        const wxChar *entity = wxMarkupEntities[wxMARKUP_ELEMENT_NAME][j];
-                        size_t entityLen = wxStrlen(entity);
-
-                        if (max - i >= entityLen &&
-                            wxStrncmp(entity, &source[i], entityLen) == 0)
-                        {
-                            // replace the &entity; string with the entity reference
-                            label << wxMarkupEntities[wxMARKUP_ELEMENT_VALUE][j];
-                            
-                            // little exception: when the entity reference is "&"
-                            // (i.e. when entity is "&amp;"), substitute it with &&
-                            // instead of a single ampersand:
-                            if (*wxMarkupEntities[wxMARKUP_ELEMENT_VALUE][j] == wxT('&'))
-                                label << wxT('&');
-                            i += entityLen - 1;     // the -1 is because main for()
-                                                    // loop already increments i
-                            isMnemonic = false;
-                            break;
-                        }
-                    }
-
-                    if (isMnemonic)
-                        label << text[i];
-                }
-                break;
-
-
-            default:
-                if (!inside_tag)
-                    label << text[i];
-        }
-    }
-
-    return label;
-}
-
-/* static */
-wxString wxStaticTextBase::EscapeMarkup(const wxString& text)
-{
-    wxString ret;
-
-    for (const wxChar *source = text; *source != wxT('\0'); source++)
-    {
-        bool isEntity = false;
-
-        // search in the list of the entities and eventually escape this character
-        for (size_t j=0; j < wxMARKUP_ENTITY_MAX; j++)
-        {
-            if (*source == *wxMarkupEntities[wxMARKUP_ELEMENT_VALUE][j])
-            {
-                ret << wxMarkupEntities[wxMARKUP_ELEMENT_NAME][j];
-                isEntity = true;
-                break;
-            }
-        }
-
-        if (!isEntity)
-            ret << *source;     // this character does not need to be escaped
-    }
-
-    return ret;
-}
-
-
-
 // ----------------------------------------------------------------------------
 // wxStaticTextBase - generic implementation for wxST_ELLIPSIZE_* support
 // ----------------------------------------------------------------------------
@@ -270,12 +204,12 @@ void wxStaticTextBase::UpdateLabel()
     if (!IsEllipsized())
         return;
 
-    wxString newlabel = GetEllipsizedLabelWithoutMarkup();
+    wxString newlabel = GetEllipsizedLabel();
 
     // we need to touch the "real" label (i.e. the text set inside the control,
     // using port-specific functions) instead of the string returned by GetLabel().
     //
-    // In fact, we must be careful not to touch the original label passed to 
+    // In fact, we must be careful not to touch the original label passed to
     // SetLabel() otherwise GetLabel() will behave in a strange way to the user
     // (e.g. returning a "Ver...ing" instead of "Very long string") !
     if (newlabel == DoGetLabel())
@@ -283,7 +217,7 @@ void wxStaticTextBase::UpdateLabel()
     DoSetLabel(newlabel);
 }
 
-wxString wxStaticTextBase::GetEllipsizedLabelWithoutMarkup() const
+wxString wxStaticTextBase::GetEllipsizedLabel() const
 {
     // this function should be used only by ports which do not support
     // ellipsis in static texts: we first remove markup (which cannot
@@ -291,19 +225,12 @@ wxString wxStaticTextBase::GetEllipsizedLabelWithoutMarkup() const
 
     wxString ret(m_labelOrig);
 
-    // the order of the following two blocks is important!
-
-    if (HasFlag(wxST_MARKUP))
-        ret = RemoveMarkup(ret);
-
     if (IsEllipsized())
         ret = Ellipsize(ret);
 
     return ret;
 }
 
-#define wxELLIPSE_REPLACEMENT       wxT("...")
-
 wxString wxStaticTextBase::Ellipsize(const wxString& label) const
 {
     wxSize sz(GetSize());
@@ -313,168 +240,24 @@ wxString wxStaticTextBase::Ellipsize(const wxString& label) const
         return label;
     }
 
-    wxClientDC dc(wx_const_cast(wxStaticTextBase*, this));
+    wxClientDC dc(const_cast<wxStaticTextBase*>(this));
     dc.SetFont(GetFont());
 
-    wxArrayInt charOffsets;
-    wxString ret;
-
-    // these cannot be cached as they can change because of e.g. a font change
-    int replacementWidth = dc.GetTextExtent(wxELLIPSE_REPLACEMENT).GetWidth();
-    int marginWidth = dc.GetCharWidth()*2;
-
-    // handle correctly labels with newlines
-    wxString curLine;
-    wxSize reqsize;
-    size_t len;
-    for ( const wxChar *pc = label; ; pc++ )
+    wxEllipsizeMode mode;
+    if ( HasFlag(wxST_ELLIPSIZE_START) )
+        mode = wxELLIPSIZE_START;
+    else if ( HasFlag(wxST_ELLIPSIZE_MIDDLE) )
+        mode = wxELLIPSIZE_MIDDLE;
+    else if ( HasFlag(wxST_ELLIPSIZE_END) )
+        mode = wxELLIPSIZE_END;
+    else
     {
-        switch ( *pc )
-        {
-        case _T('\n'):
-        case _T('\0'):
-            len = curLine.length();
-            if (len > 0 &&
-                dc.GetPartialTextExtents(curLine, charOffsets))
-            {
-                wxASSERT(charOffsets.GetCount() == len);
-
-                size_t totalWidth = charOffsets.Last();
-                if ( totalWidth > (size_t)sz.GetWidth() )
-                {
-                    // we need to ellipsize this row
-                    int excessPixels = totalWidth - sz.GetWidth() + 
-                                       replacementWidth +
-                                       marginWidth;     // security margin (NEEDED!)
-
-                    // remove characters in excess
-                    size_t initialChar,     // index of first char to erase
-                           nChars;          // how many chars do we need to erase?
-                    if (HasFlag(wxST_ELLIPSIZE_START))
-                    {
-                        initialChar = 0;
-                        for (nChars=0;
-                             nChars < len && charOffsets[nChars] < excessPixels;
-                             nChars++)
-                            ;
-                    }
-                    else if (HasFlag(wxST_ELLIPSIZE_MIDDLE))
-                    {
-                        // the start & end of the removed span of chars
-                        initialChar = len/2;
-                        size_t endChar = len/2;
-
-                        int removed = 0;
-                        for ( ; removed < excessPixels; )
-                        {
-                            if (initialChar > 0)
-                            {
-                                // width of the initialChar-th character
-                                int width = charOffsets[initialChar] -
-                                            charOffsets[initialChar-1];
-
-                                // remove the initialChar-th character
-                                removed += width;
-                                initialChar--;
-                            }
-
-                            if (endChar < len - 1 &&
-                                removed < excessPixels)
-                            {
-                                // width of the (endChar+1)-th character
-                                int width = charOffsets[endChar+1] -
-                                            charOffsets[endChar];
-
-                                // remove the endChar-th character
-                                removed += width;
-                                endChar++;
-                            }
-
-                            if (initialChar == 0 && endChar == len-1)
-                            {
-                                nChars = len+1;
-                                break;
-                            }
-                        }
-
-                        initialChar++;
-                        nChars = endChar - initialChar + 1;
-                    }
-                    else
-                    {
-                        wxASSERT(HasFlag(wxST_ELLIPSIZE_END));
-                        wxASSERT(len > 0);
-
-                        int maxWidth = totalWidth - excessPixels;
-                        for (initialChar=0; 
-                             initialChar < len && 
-                             charOffsets[initialChar] < maxWidth; 
-                             initialChar++)
-                            ;
-
-                        if (initialChar == 0)
-                        {
-                            nChars = len;
-                        }
-                        else
-                        {
-                            initialChar--;      // go back one character 
-                            nChars = len - initialChar;
-                        }
-                    }
-
-                    if (nChars > len)
-                    {
-                        // need to remove the entire row!
-                        curLine.clear();
-                    }
-                    else
-                    {
-                        // erase nChars characters after initialChar (included):
-                        curLine.erase(initialChar, nChars+1);
-
-                        // if there is space for the replacement dots, add them
-                        if (sz.GetWidth() > replacementWidth)
-                            curLine.insert(initialChar, wxELLIPSE_REPLACEMENT);
-                    }
-
-                    // if everything was ok, we should have shortened this line
-                    // enough to make it fit in sz.GetWidth():
-                    wxASSERT(dc.GetTextExtent(curLine).GetWidth() < sz.GetWidth());
-                }
-            }
-
-            // add this (ellipsized) row to the rest of the label
-            ret << curLine << *pc;
-            curLine.clear();
-
-            if ( *pc == _T('\0') )
-                return ret;
-
-            break;
-
-            // we need to remove mnemonics from the label for
-            // correct calculations
-        case _T('&'):
-            // pc+1 is safe: at worst we'll hit the \0
-            if (*(pc+1) == _T('&'))
-                curLine += _T('&');          // && becomes &
-            //else: remove this ampersand
+        wxFAIL_MSG( "should only be called if have one of wxST_ELLIPSIZE_XXX" );
 
-            break;
-
-            // we need also to expand tabs to properly calc their size
-        case _T('\t'):
-            // Windows natively expands the TABs to 6 spaces. Do the same:
-            curLine += wxT("      ");
-            break;
-
-        default:
-            curLine += *pc;
-        }
+        return label;
     }
 
-    //return ret;
+    return wxControl::Ellipsize(label, dc, mode, sz.GetWidth());
 }
 
 #endif // wxUSE_STATTEXT