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L7/LBoundComboBox.cpp

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+/* 
+ * File:   LBoundComboBox.cpp
+ * Author: SET - nmset@netcourrier.com
+ * License : LGPL version 2.1
+ * Copyright SET, M. D. - © 2014
+ * 
+ * Created on 3 juin 2014, 19:00
+ */
+
+#include "LBoundComboBox.h"
+#include "LItemData.h"
+
+LBoundComboBox::LBoundComboBox(wxWindow* parent, wxWindowID id)
+: wxComboBox(parent, id, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0, NULL, wxCB_READONLY)
+{
+    m_sqlQuote = wxEmptyString;
+    SetNull();
+}
+
+LBoundComboBox::~LBoundComboBox()
+{
+    if (m_rs) m_rs->UnRegisterControl(this);
+}
+
+bool LBoundComboBox::IsTranslated() const
+{
+    if (HasClientObjectData())
+    {
+        for (unsigned int i = 0; i < GetCount(); i++)
+        {
+            LItemData * x = static_cast<LItemData*> (GetClientObject(i));
+            if (x != NULL) return true;
+        }
+    }
+    return false;
+}
+
+bool LBoundComboBox::SelectionIsTranslated() const
+{
+    if (IsTranslated())
+    {
+        LItemData * x = static_cast<LItemData*> (GetClientObject(GetSelection()));
+        return (x != NULL);
+    }
+    else
+    {
+        return false;
+    }
+}
+
+const wxAny LBoundComboBox::GetDataOfIndex(unsigned int idx) const
+{
+    if (IsTranslated())
+    {
+        LItemData * x = static_cast<LItemData*> (GetClientObject(idx));
+        if (x != NULL) return x->GetData();
+        return wxEmptyString;
+    }
+    else
+    {
+        return GetString(idx);
+    }
+}
+
+const int LBoundComboBox::GetIndexOfData(const wxAny& data) const
+{
+    const wxString sdata = data.As<wxString>();
+    if (IsTranslated())
+    {
+        /* C001 Can be costly if there are thousands of items ! 
+         * In such a case, the control's usefulness is doubtful.
+         */
+        for (unsigned int i = 0; i < GetCount(); i++)
+        {
+            LItemData * x = static_cast<LItemData*> (GetClientObject(i));
+            if (x)
+            {
+                if (x->GetData().As<wxString>() == sdata)
+                {
+                    return i;
+                }
+            }
+        }
+        return wxNOT_FOUND;
+    }
+    else
+    {
+        return FindString(sdata);
+    }
+}
+
+const wxString LBoundComboBox::GetItemOfData(const wxAny& data) const
+{
+    if (IsTranslated())
+    {
+        // See C001
+        const wxString sdata = data.As<wxString>();
+        for (unsigned int i = 0; i < GetCount(); i++)
+        {
+            LItemData * x = static_cast<LItemData*> (GetClientObject(i));
+            if (x != NULL)
+            {
+                if (x->GetData().As<wxString>() == sdata)
+                {
+                    return GetString(i);
+                }
+            }
+        }
+    }
+    return wxEmptyString;
+}
+
+const wxAny LBoundComboBox::GetDataOfItem(const wxString& item) const
+{
+    if (IsTranslated())
+    {
+        const int idx = FindString(item, true);
+        LItemData * x = static_cast<LItemData*> (GetClientObject(idx));
+        if (x != NULL) return x->GetData();
+        return wxEmptyString;
+    }
+    else
+    {
+        return item;
+    }
+}
+
+const wxString LBoundComboBox::GetItemOfNull() const
+{
+    if (IsTranslated())
+    {
+        // See C001
+        for (unsigned int i = 0; i < GetCount(); i++)
+        {
+            LItemData * x = static_cast<LItemData*> (GetClientObject(i));
+            if (x == NULL) return GetString(i);
+        }
+    }
+    return wxEmptyString;
+}
+
+const int LBoundComboBox::GetIndexOfNull() const
+{
+    if (IsTranslated())
+    {
+        // See C001
+        for (unsigned int i = 0; i < GetCount(); i++)
+        {
+            LItemData * x = static_cast<LItemData*> (GetClientObject(i));
+            if (x == NULL) return i;
+        }
+    }
+    return wxNOT_FOUND;
+}
+
+void LBoundComboBox::Clear()
+{
+    wxComboBox::Clear();
+    const long wsflags = GetWindowStyleFlag();
+    SetWindowStyleFlag(0);
+    SetSelection(wxNOT_FOUND);
+    SetValue(wxEmptyString);
+    SetWindowStyleFlag(wsflags);
+}
+
+bool LBoundComboBox::SetData(const wxAny& data)
+{
+    const wxString sData = data.As<wxString>();
+    if (IsTranslated())
+    {
+        if (data.IsNull()
+            || sData.IsEmpty()
+            || sData == L_SQLNULL)
+        {
+            SetNull();
+            return (GetSelection() != wxNOT_FOUND); // ?
+        }
+        for (unsigned int i = 0; i < GetCount(); i++)
+        {
+            LItemData * x = static_cast<LItemData*> (GetClientObject(i));
+            if (x)
+            {
+                if (x->GetData().As<wxString>() == sData)
+                {
+                    SetSelection(i);
+                    return true;
+                }
+            }
+        }
+    }
+    else
+    {
+        bool hasData = FindString(sData, true);
+        SetValue(sData);
+        return hasData;
+    }
+    return false;
+}
+
+const wxAny LBoundComboBox::GetData()
+{
+    if (IsNull()) return L_SQLNULL;
+    if (IsTranslated())
+    {
+        LItemData * x = static_cast<LItemData*> (GetClientObject(GetSelection()));
+        if (x != NULL)
+        {
+            return x->GetData();
+        }
+        else
+        {
+            return L_SQLNULL;
+        }
+    }
+    else
+    {
+        return GetValue();
+    }
+}
+
+void LBoundComboBox::SetResultSet(LResultSet* newResultSet)
+{
+    m_rs = newResultSet;
+    if (m_rs == NULL) return;
+    m_rs->RegisterControl(this);
+}
+
+bool LBoundComboBox::IsNull()
+{
+    if (IsTranslated())
+    {
+        if (GetSelection() != wxNOT_FOUND)
+        {
+            if (SelectionIsTranslated())
+            {
+                LItemData * x = static_cast<LItemData*> (GetClientObject(GetSelection()));
+                if (x != NULL) return false;
+            }
+        }
+        return true;
+    }
+    else
+    {
+        return (GetValue().IsEmpty());
+    }
+}
+
+bool LBoundComboBox::SetNull()
+{
+    if (IsTranslated())
+    {
+        for (unsigned int i = 0; i < GetCount(); i++)
+        {
+            wxClientData * x = GetClientObject(i);
+            if (x == NULL)
+            {
+                SetSelection(i);
+                return true;
+            }
+        }
+        return false;
+    }
+    long wsflags = GetWindowStyleFlag();
+    SetWindowStyleFlag(0);
+    SetSelection(wxNOT_FOUND);
+    SetValue(wxEmptyString);
+    SetWindowStyleFlag(wsflags);
+    return true;
+}
+
+bool LBoundComboBox::IsDirty()
+{
+    wxASSERT_MSG(m_rs != NULL, "m_rs est NULL.");
+    wxAny BEData = m_rs->GetData(m_columnName);
+    if (BEData.As<wxString>().IsEmpty()) BEData = L_SQLNULL;
+    return (GetData().As<wxString>() != BEData.As<wxString>());
+}
+
+const wxString LBoundComboBox::GetDisplayedData()
+{
+    return GetValue();
+}