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

src/richtext/richtextstyles.cpp

@@ -13,7 +13,7 @@
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-    #pragma hdrstop
+  #pragma hdrstop
 #endif
 
 #if wxUSE_RICHTEXT
@@ -21,8 +21,7 @@
 #include "wx/richtext/richtextstyles.h"
 
 #ifndef WX_PRECOMP
-    #include "wx/dcclient.h"
-    #include "wx/module.h"
+  #include "wx/wx.h"
 #endif
 
 #include "wx/filename.h"
@@ -35,6 +34,38 @@ IMPLEMENT_CLASS(wxRichTextStyleDefinition, wxObject)
 IMPLEMENT_CLASS(wxRichTextCharacterStyleDefinition, wxRichTextStyleDefinition)
 IMPLEMENT_CLASS(wxRichTextParagraphStyleDefinition, wxRichTextStyleDefinition)
 
+/*!
+ * A definition
+ */
+
+void wxRichTextStyleDefinition::Copy(const wxRichTextStyleDefinition& def)
+{
+    m_name = def.m_name;
+    m_baseStyle = def.m_baseStyle;
+    m_style = def.m_style;
+}
+
+bool wxRichTextStyleDefinition::Eq(const wxRichTextStyleDefinition& def) const
+{
+    return (m_name == def.m_name && m_baseStyle == def.m_baseStyle && m_style == def.m_style);
+}
+
+/*!
+ * Paragraph style definition
+ */
+
+void wxRichTextParagraphStyleDefinition::Copy(const wxRichTextParagraphStyleDefinition& def)
+{
+    wxRichTextStyleDefinition::Copy(def);
+
+    m_nextStyle = def.m_nextStyle;
+}
+
+bool wxRichTextParagraphStyleDefinition::operator ==(const wxRichTextParagraphStyleDefinition& def) const
+{
+    return (Eq(def) && m_nextStyle == def.m_nextStyle);
+}
+
 /*!
  * The style manager
  */
@@ -89,6 +120,48 @@ void wxRichTextStyleSheet::DeleteStyles()
     WX_CLEAR_LIST(wxList, m_paragraphStyleDefinitions);
 }
 
+/// Add a definition to the character style list
+bool wxRichTextStyleSheet::AddCharacterStyle(wxRichTextCharacterStyleDefinition* def)
+{
+    def->GetStyle().SetCharacterStyleName(def->GetName());
+    return AddStyle(m_characterStyleDefinitions, def);
+}
+
+/// Add a definition to the paragraph style list
+bool wxRichTextStyleSheet::AddParagraphStyle(wxRichTextParagraphStyleDefinition* def)
+{
+    def->GetStyle().SetParagraphStyleName(def->GetName());
+    return AddStyle(m_paragraphStyleDefinitions, def);
+}
+
+/// Copy
+void wxRichTextStyleSheet::Copy(const wxRichTextStyleSheet& sheet)
+{
+    DeleteStyles();
+
+    wxList::compatibility_iterator node;
+
+    for (node = sheet.m_characterStyleDefinitions.GetFirst(); node; node = node->GetNext())
+    {
+        wxRichTextCharacterStyleDefinition* def = (wxRichTextCharacterStyleDefinition*) node->GetData();
+        AddCharacterStyle(new wxRichTextCharacterStyleDefinition(*def));
+    }
+
+    for (node = sheet.m_paragraphStyleDefinitions.GetFirst(); node; node = node->GetNext())
+    {
+        wxRichTextParagraphStyleDefinition* def = (wxRichTextParagraphStyleDefinition*) node->GetData();
+        AddParagraphStyle(new wxRichTextParagraphStyleDefinition(*def));
+    }
+}
+
+/// Equality
+bool wxRichTextStyleSheet::operator==(const wxRichTextStyleSheet& WXUNUSED(sheet)) const
+{
+    // TODO
+    return false;
+}
+
+
 #if wxUSE_HTML
 /*!
  * wxRichTextStyleListBox class declaration
@@ -316,8 +389,10 @@ void wxRichTextStyleListBox::OnIdle(wxIdleEvent& event)
 {
     if (CanAutoSetSelection() && GetRichTextCtrl())
     {
-        wxRichTextParagraph* para = GetRichTextCtrl()->GetBuffer().GetParagraphAtPosition(GetRichTextCtrl()->GetCaretPosition());
-        wxRichTextObject* obj = GetRichTextCtrl()->GetBuffer().GetLeafObjectAtPosition(GetRichTextCtrl()->GetCaretPosition());
+        int adjustedCaretPos = GetRichTextCtrl()->GetAdjustedCaretPosition(GetRichTextCtrl()->GetCaretPosition());
+
+        wxRichTextParagraph* para = GetRichTextCtrl()->GetBuffer().GetParagraphAtPosition(adjustedCaretPos);
+        wxRichTextObject* obj = GetRichTextCtrl()->GetBuffer().GetLeafObjectAtPosition(adjustedCaretPos);
 
         wxString styleName;
 
@@ -483,8 +558,10 @@ void wxRichTextStyleComboCtrl::OnIdle(wxIdleEvent& event)
 {
     if (GetRichTextCtrl() && !IsPopupShown())
     {
-        wxRichTextParagraph* para = GetRichTextCtrl()->GetBuffer().GetParagraphAtPosition(GetRichTextCtrl()->GetCaretPosition());
-        wxRichTextObject* obj = GetRichTextCtrl()->GetBuffer().GetLeafObjectAtPosition(GetRichTextCtrl()->GetCaretPosition());
+        int adjustedCaretPos = GetRichTextCtrl()->GetAdjustedCaretPosition(GetRichTextCtrl()->GetCaretPosition());
+
+        wxRichTextParagraph* para = GetRichTextCtrl()->GetBuffer().GetParagraphAtPosition(adjustedCaretPos);
+        wxRichTextObject* obj = GetRichTextCtrl()->GetBuffer().GetLeafObjectAtPosition(adjustedCaretPos);
 
         wxString styleName;