Added wxRichTextTableBlock class to help with table UI operations

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74872 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/richtext/richtextbuffer.h b/include/wx/richtext/richtextbuffer.h
index 6cec5eca81457e8a47675174cc8cc6f564ebece4..4892f944dd20f684f6045c665d56b3ae22eab0c7 100644 (file)
--- a/include/wx/richtext/richtextbuffer.h
+++ b/include/wx/richtext/richtextbuffer.h
@@ -5797,6 +5797,55 @@ protected:
     wxRichTextObjectPtrArrayArray   m_cells;
 };
 
+/** @class wxRichTextTableBlock
+
+    Stores the coordinates for a block of cells.
+ */
+
+class WXDLLIMPEXP_RICHTEXT wxRichTextTableBlock
+{
+public:
+    wxRichTextTableBlock() { Init(); }
+    wxRichTextTableBlock(int colStart, int colEnd, int rowStart, int rowEnd)
+    { Init(); m_colStart = colStart; m_colEnd = colEnd; m_rowStart = rowStart; m_rowEnd = rowEnd; }
+    wxRichTextTableBlock(const wxRichTextTableBlock& block) { Copy(block); }
+
+    void Init() { m_colStart = 0; m_colEnd = 0; m_rowStart = 0; m_rowEnd = 0; }
+    
+    void Copy(const wxRichTextTableBlock& block)
+    {
+        m_colStart = block.m_colStart; m_colEnd = block.m_colEnd; m_rowStart = block.m_rowStart; m_rowEnd = block.m_rowEnd;
+    }
+    void operator=(const wxRichTextTableBlock& block) { Copy(block); }
+    bool operator==(const wxRichTextTableBlock& block)
+    { return m_colStart == block.m_colStart && m_colEnd == block.m_colEnd && m_rowStart == block.m_rowStart && m_rowEnd == block.m_rowEnd; }
+
+    /// Computes the block given a table (perhaps about to be edited) and a rich text control
+    /// that may have a selection. If no selection, the whole table is used. If just the whole content
+    /// of one cell is selected, this cell only is used. If the cell contents is not selected and
+    /// requireCellSelection is @false, the focused cell will count as a selected cell.
+    bool ComputeBlockForSelection(wxRichTextTable* table, wxRichTextCtrl* ctrl, bool requireCellSelection = true);
+
+    /// Does this block represent the whole table?
+    bool IsWholeTable(wxRichTextTable* table) const;
+
+    /// Returns the cell focused in the table, if any
+    static wxRichTextCell* GetFocusedCell(wxRichTextCtrl* ctrl);
+
+    int& ColStart() { return m_colStart; }
+    int ColStart() const { return m_colStart; }
+
+    int& ColEnd() { return m_colEnd; }
+    int ColEnd() const { return m_colEnd; }
+
+    int& RowStart() { return m_rowStart; }
+    int RowStart() const { return m_rowStart; }
+
+    int& RowEnd() { return m_rowEnd; }
+    int RowEnd() const { return m_rowEnd; }
+
+    int m_colStart, m_colEnd, m_rowStart, m_rowEnd;
+};
 
 /**
     The command identifiers for Do/Undo.

diff --git a/interface/wx/richtext/richtextbuffer.h b/interface/wx/richtext/richtextbuffer.h
index 03a8338abf25978d83b85ce24947b63ba1aba7b7..325b5ca8145a84af963f1b45fe1d629cfd5ddcee 100644 (file)
--- a/interface/wx/richtext/richtextbuffer.h
+++ b/interface/wx/richtext/richtextbuffer.h
@@ -5654,6 +5654,55 @@ protected:
     wxRichTextObjectPtrArrayArray   m_cells;
 };
 
+/** @class wxRichTextTableBlock
+
+    Stores the coordinates for a block of cells.
+ */
+
+class wxRichTextTableBlock
+{
+public:
+    wxRichTextTableBlock() { Init(); }
+    wxRichTextTableBlock(int colStart, int colEnd, int rowStart, int rowEnd)
+    { Init(); m_colStart = colStart; m_colEnd = colEnd; m_rowStart = rowStart; m_rowEnd = rowEnd; }
+    wxRichTextTableBlock(const wxRichTextTableBlock& block) { Copy(block); }
+
+    void Init() { m_colStart = 0; m_colEnd = 0; m_rowStart = 0; m_rowEnd = 0; }
+    
+    void Copy(const wxRichTextTableBlock& block)
+    {
+        m_colStart = block.m_colStart; m_colEnd = block.m_colEnd; m_rowStart = block.m_rowStart; m_rowEnd = block.m_rowEnd;
+    }
+    void operator=(const wxRichTextTableBlock& block) { Copy(block); }
+    bool operator==(const wxRichTextTableBlock& block)
+    { return m_colStart == block.m_colStart && m_colEnd == block.m_colEnd && m_rowStart == block.m_rowStart && m_rowEnd == block.m_rowEnd; }
+
+    /// Computes the block given a table (perhaps about to be edited) and a rich text control
+    /// that may have a selection. If no selection, the whole table is used. If just the whole content
+    /// of one cell is selected, this cell only is used. If the cell contents is not selected and
+    /// requireCellSelection is @false, the focused cell will count as a selected cell.
+    bool ComputeBlockForSelection(wxRichTextTable* table, wxRichTextCtrl* ctrl, bool requireCellSelection = true);
+
+    /// Does this block represent the whole table?
+    bool IsWholeTable(wxRichTextTable* table) const;
+
+    /// Returns the cell focused in the table, if any
+    static wxRichTextCell* GetFocusedCell(wxRichTextCtrl* ctrl);
+
+    int& ColStart() { return m_colStart; }
+    int ColStart() const { return m_colStart; }
+
+    int& ColEnd() { return m_colEnd; }
+    int ColEnd() const { return m_colEnd; }
+
+    int& RowStart() { return m_rowStart; }
+    int RowStart() const { return m_rowStart; }
+
+    int& RowEnd() { return m_rowEnd; }
+    int RowEnd() const { return m_rowEnd; }
+
+    int m_colStart, m_colEnd, m_rowStart, m_rowEnd;
+};
 
 /**
     The command identifiers for Do/Undo.

diff --git a/src/richtext/richtextbuffer.cpp b/src/richtext/richtextbuffer.cpp
index 9d4c29d8246a764c2e3ebc4e64a75d0c77c5df8e..7ffc2cc3b4eccacaa53be5de8610a5a21bd28e72 100644 (file)
--- a/src/richtext/richtextbuffer.cpp
+++ b/src/richtext/richtextbuffer.cpp
@@ -10762,6 +10762,90 @@ bool wxRichTextTable::EditProperties(wxWindow* parent, wxRichTextBuffer* buffer)
         return false;
 }
 
+bool wxRichTextTableBlock::ComputeBlockForSelection(wxRichTextTable* table, wxRichTextCtrl* ctrl, bool requireCellSelection)
+{
+    if (!ctrl)
+        return false;
+
+    ColStart() = 0;
+    ColEnd() = table->GetColumnCount()-1;
+    RowStart() = 0;
+    RowEnd() = table->GetRowCount()-1;
+
+    wxRichTextSelection selection = ctrl->GetSelection();
+    if (selection.IsValid() && selection.GetContainer() == table)
+    {
+        // Start with an invalid block and increase.
+        wxRichTextTableBlock selBlock(-1, -1, -1, -1);
+        wxRichTextRangeArray ranges = selection.GetRanges();
+        int row, col;
+        for (row = 0; row < table->GetRowCount(); row++)
+        {
+            for (col = 0; col < table->GetColumnCount(); col++)
+            {
+                if (selection.WithinSelection(table->GetCell(row, col)->GetRange().GetStart()))
+                {
+                    if (selBlock.ColStart() == -1)
+                        selBlock.ColStart() = col;
+                    if (selBlock.ColEnd() == -1)
+                        selBlock.ColEnd() = col;
+                    if (col < selBlock.ColStart())
+                        selBlock.ColStart() = col;
+                    if (col > selBlock.ColEnd())
+                        selBlock.ColEnd() = col;
+
+                    if (selBlock.RowStart() == -1)
+                        selBlock.RowStart() = row;
+                    if (selBlock.RowEnd() == -1)
+                        selBlock.RowEnd() = row;
+                    if (row < selBlock.RowStart())
+                        selBlock.RowStart() = row;
+                    if (row > selBlock.RowEnd())
+                        selBlock.RowEnd() = row;
+                }
+            }
+        }
+
+        if (selBlock.RowStart() != -1 && selBlock.RowEnd() != -1 && selBlock.ColStart() != -1 && selBlock.ColEnd() != -1)
+            (*this) = selBlock;
+    }
+    else
+    {
+        // See if a whole cell's contents is selected, in which case we can treat the cell as selected.
+        // wxRTC lacks the ability to select a single cell.
+        wxRichTextCell* cell = wxDynamicCast(ctrl->GetFocusObject(), wxRichTextCell);
+        if (cell && (!requireCellSelection || (ctrl->HasSelection() && ctrl->GetSelectionRange() == cell->GetOwnRange())))
+        {
+            int row, col;
+            if (table->GetCellRowColumnPosition(cell->GetRange().GetStart(), row, col))
+            {
+                RowStart() = row;
+                RowEnd() = row;
+                ColStart() = col;
+                ColEnd() = col;
+            }
+        }
+    }
+
+    return true;
+}
+
+// Does this block represent the whole table?
+bool wxRichTextTableBlock::IsWholeTable(wxRichTextTable* table) const
+{
+    return (ColStart() == 0 && RowStart() == 0 && ColEnd() == (table->GetColumnCount()-1) && RowEnd() == (table->GetRowCount()-1));
+}
+
+// Returns the cell focused in the table, if any
+wxRichTextCell* wxRichTextTableBlock::GetFocusedCell(wxRichTextCtrl* ctrl)
+{
+    if (!ctrl)
+        return NULL;
+
+    wxRichTextCell* cell = wxDynamicCast(ctrl->GetFocusObject(), wxRichTextCell);
+    return cell;
+}
+
 /*
  * Module to initialise and clean up handlers
  */