From d473d47e7ee759dbda3364f725359725f58b6956 Mon Sep 17 00:00:00 2001
From: Pavel Kalugin <p.kalugin@gmail.com>
Date: Tue, 4 Sep 2018 16:52:52 +0300
Subject: [PATCH] Add text alignment and orientation support for corner label

---
 include/wx/generic/grid.h |  7 +++++
 src/generic/grid.cpp      | 64 +++++++++++++++++++++++++++++++++++++--
 2 files changed, 68 insertions(+), 3 deletions(-)

diff --git a/include/wx/generic/grid.h b/include/wx/generic/grid.h
index 7969d95cec..dd4791be10 100644
--- a/include/wx/generic/grid.h
+++ b/include/wx/generic/grid.h
@@ -1223,7 +1223,9 @@ public:
     wxFont   GetLabelFont() const { return m_labelFont; }
     void     GetRowLabelAlignment( int *horiz, int *vert ) const;
     void     GetColLabelAlignment( int *horiz, int *vert ) const;
+    void     GetCornerLabelAlignment( int *horiz, int *vert ) const;
     int      GetColLabelTextOrientation() const;
+    int      GetCornerLabelTextOrientation() const;
     wxString GetRowLabelValue( int row ) const;
     wxString GetColLabelValue( int col ) const;
     wxString GetCornerLabelValue() const;
@@ -1248,7 +1250,9 @@ public:
     void     SetLabelFont( const wxFont& );
     void     SetRowLabelAlignment( int horiz, int vert );
     void     SetColLabelAlignment( int horiz, int vert );
+    void     SetCornerLabelAlignment( int horiz, int vert );
     void     SetColLabelTextOrientation( int textOrientation );
+    void     SetCornerLabelTextOrientation( int textOrientation );
     void     SetRowLabelValue( int row, const wxString& );
     void     SetColLabelValue( int col, const wxString& );
     void     SetCornerLabelValue( const wxString& );
@@ -1972,6 +1976,9 @@ protected:
     int        m_colLabelHorizAlign;
     int        m_colLabelVertAlign;
     int        m_colLabelTextOrientation;
+    int        m_cornerLabelHorizAlign;
+    int        m_cornerLabelVertAlign;
+    int        m_cornerLabelTextOrientation;
 
     bool       m_defaultRowLabelValues;
     bool       m_defaultColLabelValues;
diff --git a/src/generic/grid.cpp b/src/generic/grid.cpp
index 269aa5ef6d..6c7713b5bc 100644
--- a/src/generic/grid.cpp
+++ b/src/generic/grid.cpp
@@ -2454,6 +2454,10 @@ void wxGrid::Init()
     m_colLabelVertAlign  = wxALIGN_CENTRE;
     m_colLabelTextOrientation = wxHORIZONTAL;
 
+    m_cornerLabelHorizAlign = wxALIGN_CENTRE;
+    m_cornerLabelVertAlign = wxALIGN_CENTRE;
+    m_cornerLabelTextOrientation = wxHORIZONTAL;
+
     m_defaultColWidth  = WXGRID_DEFAULT_COL_WIDTH;
     m_defaultRowHeight = 0; // this will be initialized after creation
 
@@ -5957,10 +5961,9 @@ void wxGrid::DrawCornerLabel(wxDC& dc)
     wxString label = GetCornerLabelValue();
     if( !label.IsEmpty() )
     {
-        // TODO: add alignment and orientation support for corner window.
         int hAlign, vAlign;
-        GetColLabelAlignment(&hAlign, &vAlign);
-        const int orient = GetColLabelTextOrientation();
+        GetCornerLabelAlignment(&hAlign, &vAlign);
+        const int orient = GetCornerLabelTextOrientation();
 
         rend.DrawLabel(*this, dc, label, rect, hAlign, vAlign, orient);
     }
@@ -7068,6 +7071,19 @@ int wxGrid::GetColLabelTextOrientation() const
     return m_colLabelTextOrientation;
 }
 
+void wxGrid::GetCornerLabelAlignment( int *horiz, int *vert ) const
+{
+    if ( horiz )
+        *horiz = m_cornerLabelHorizAlign;
+    if ( vert )
+        *vert  = m_cornerLabelVertAlign;
+}
+
+int wxGrid::GetCornerLabelTextOrientation() const
+{
+    return m_cornerLabelTextOrientation;
+}
+
 wxString wxGrid::GetRowLabelValue( int row ) const
 {
     if ( m_table )
@@ -7275,6 +7291,39 @@ void wxGrid::SetColLabelAlignment( int horiz, int vert )
     }
 }
 
+void wxGrid::SetCornerLabelAlignment( int horiz, int vert )
+{
+    // allow old (incorrect) defs to be used
+    switch ( horiz )
+    {
+        case wxLEFT:   horiz = wxALIGN_LEFT; break;
+        case wxRIGHT:  horiz = wxALIGN_RIGHT; break;
+        case wxCENTRE: horiz = wxALIGN_CENTRE; break;
+    }
+
+    switch ( vert )
+    {
+        case wxTOP:    vert = wxALIGN_TOP;    break;
+        case wxBOTTOM: vert = wxALIGN_BOTTOM; break;
+        case wxCENTRE: vert = wxALIGN_CENTRE; break;
+    }
+
+    if ( horiz == wxALIGN_LEFT || horiz == wxALIGN_CENTRE || horiz == wxALIGN_RIGHT )
+    {
+        m_cornerLabelHorizAlign = horiz;
+    }
+
+    if ( vert == wxALIGN_TOP || vert == wxALIGN_CENTRE || vert == wxALIGN_BOTTOM )
+    {
+        m_cornerLabelVertAlign = vert;
+    }
+
+    if ( !GetBatchCount() )
+    {
+        m_cornerLabelWin->Refresh();
+    }
+}
+
 // Note: under MSW, the default column label font must be changed because it
 //       does not support vertical printing
 //
@@ -7291,6 +7340,15 @@ void wxGrid::SetColLabelTextOrientation( int textOrientation )
         m_colWindow->Refresh();
 }
 
+void wxGrid::SetCornerLabelTextOrientation( int textOrientation )
+{
+    if ( textOrientation == wxHORIZONTAL || textOrientation == wxVERTICAL )
+        m_cornerLabelTextOrientation = textOrientation;
+
+    if ( !GetBatchCount() )
+        m_cornerLabelWin->Refresh();
+}
+
 void wxGrid::SetRowLabelValue( int row, const wxString& s )
 {
     if ( m_table )