]> git.saurik.com Git - wxWidgets.git/blobdiff - samples/db/listdb.cpp
Changed greying out to very crude algorithm, just draining colour
[wxWidgets.git] / samples / db / listdb.cpp
index 57e48dd0870bfa960fde16b71a2eafaf18e217e9..f60902a4e626ac6bea3f97a2e19ac829e8662cbf 100644 (file)
@@ -22,7 +22,7 @@
      single selection listbox.
 
      The string selected from the list box is stored in the Global variable
-     "ListDB_Seclection", and will remain set until another interation of this
+     "ListDB_Selection", and will remain set until another interation of this
      routine is called.
 
      For each object (database) type that is to be used, an overridden
 extern wxDbList WXDLLEXPORT *PtrBegDbList;    /* from db.cpp, used in getting back error results from db connections */
 
 #include "listdb.h"
-
-// Global structure for holding ODBC connection information
-extern wxDbConnectInf DbConnectInf;
-
-// Global database connection
-extern wxDb *READONLY_DB;
-
+//#include "dbtest.h"
 
 // Used for passing the selected listbox selection back to the calling
 // routine.  This variable must be declared as 'extern' in the calling
 // source module
-char ListDB_Selection[LOOKUP_COL_LEN+1];
+wxChar ListDB_Selection[LOOKUP_COL_LEN+1];
 
 // If the listbox contains two columns of data, the second column is
 // returned in this variable.
-char ListDB_Selection2[LOOKUP_COL_LEN+1];
+wxChar ListDB_Selection2[LOOKUP_COL_LEN+1];
 
 // Constants
 const int LISTDB_NO_SPACES_BETWEEN_COLS = 3;
 
 
+extern wxApp *DatabaseDemoApp;
+
 
 /*
  * This function will return the exact string(s) from the database engine
@@ -93,53 +89,50 @@ const int LISTDB_NO_SPACES_BETWEEN_COLS = 3;
  * NOTE: The value returned by this function is for temporary use only and
  *       should be copied for long term use
  */
-char *GetExtendedDBErrorMsg2(char *ErrFile, int ErrLine)
+const char *GetExtendedDBErrorMsg2(wxDb *pDb, char *ErrFile, int ErrLine)
 {
     static wxString msg;
+    msg = wxT("");
 
     wxString tStr;
 
     if (ErrFile || ErrLine)
     {
-        msg += "File: ";
+        msg += wxT("File: ");
         msg += ErrFile;
-        msg += "   Line: ";
-        tStr.Printf("%d",ErrLine);
+        msg += wxT("   Line: ");
+        tStr.Printf(wxT("%d"),ErrLine);
         msg += tStr.c_str();
-        msg += "\n";
+        msg += wxT("\n");
     }
 
-    msg.Append ("\nODBC errors:\n");
-    msg += "\n";
+    msg.Append (wxT("\nODBC errors:\n"));
+    msg += wxT("\n");
     
-    /* Scan through each database connection displaying 
-     * any ODBC errors that have occured. */
-    wxDbList *pDbList;
-    for (pDbList = PtrBegDbList; pDbList; pDbList = pDbList->PtrNext)
+    // Display errors for this connection
+    int i;
+    for (i = 0; i < DB_MAX_ERROR_HISTORY; i++)
     {
-        // Skip over any free connections
-        if (pDbList->Free)
-            continue;
-        // Display errors for this connection
-        for (int i = 0; i < DB_MAX_ERROR_HISTORY; i++)
+        if (pDb->errorList[i])
         {
-            if (pDbList->PtrDb->errorList[i])
-            {
-                msg.Append(pDbList->PtrDb->errorList[i]);
-                if (wxStrcmp(pDbList->PtrDb->errorList[i],"") != 0)
-                    msg.Append("\n");
-            }
+            msg.Append(pDb->errorList[i]);
+            if (wxStrcmp(pDb->errorList[i],wxT("")) != 0)
+                msg.Append(wxT("\n"));
+            // Clear the errmsg buffer so the next error will not
+            // end up showing the previous error that have occurred
+            wxStrcpy(pDb->errorList[i],wxT(""));
         }
     }
-    msg += "\n";
+    msg += wxT("\n");
 
-    return (char*) (const char*) msg;
+    return msg.c_str();
 }  // GetExtendedDBErrorMsg
 
 
-
 // Clookup constructor
-Clookup::Clookup(char *tblName, char *colName) : wxDbTable(READONLY_DB, tblName, 1, NULL, !wxDB_QUERY_ONLY, DbConnectInf.defaultDir)
+Clookup::Clookup(wxChar *tblName, wxChar *colName, wxDb *pDb, const wxString &defDir)
+   : wxDbTable(pDb, tblName, 1, wxT(""), !wxDB_QUERY_ONLY,
+               defDir)
 {
 
     SetColDefs (0, colName, DB_DATA_TYPE_VARCHAR, lookupCol, SQL_C_CHAR, LOOKUP_COL_LEN+1, FALSE, FALSE);
@@ -148,9 +141,16 @@ Clookup::Clookup(char *tblName, char *colName) : wxDbTable(READONLY_DB, tblName,
 
 
 // Clookup2 constructor
-Clookup2::Clookup2(char *tblName, char *colName1, char *colName2, wxDb *pDb)
-   : wxDbTable(pDb, tblName, (1 + (wxStrlen(colName2) > 0)), NULL, !wxDB_QUERY_ONLY, DbConnectInf.defaultDir)
+Clookup2::Clookup2(wxChar *tblName, wxChar *colName1, wxChar *colName2,
+                   wxDb *pDb, const wxString &defDir)
+   : wxDbTable(pDb, tblName, (1 + (wxStrlen(colName2) > 0)), wxT(""),
+               !wxDB_QUERY_ONLY, defDir)
 {
+    wxASSERT(pDb);
+    wxASSERT(tblName);
+    wxASSERT(colName1);
+    wxASSERT(colName2);
+
     int i = 0;
 
     SetColDefs (i, colName1, DB_DATA_TYPE_VARCHAR, lookupCol1, SQL_C_CHAR, LOOKUP_COL_LEN+1, FALSE, FALSE);
@@ -162,35 +162,38 @@ Clookup2::Clookup2(char *tblName, char *colName1, char *colName2, wxDb *pDb)
 
 
 BEGIN_EVENT_TABLE(ClookUpDlg, wxDialog)
-//     EVT_LISTBOX(LOOKUP_DIALOG_SELECT, ClookUpDlg::SelectCallback)
     EVT_BUTTON(LOOKUP_DIALOG_OK,  ClookUpDlg::OnButton)
     EVT_BUTTON(LOOKUP_DIALOG_CANCEL,  ClookUpDlg::OnButton)
     EVT_CLOSE(ClookUpDlg::OnClose)
 END_EVENT_TABLE()
 
+
 // This is a generic lookup constructor that will work with any table and any column
-ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName, char *colName,
-    char *where, char *orderBy)  : wxDialog (parent, LOOKUP_DIALOG, "Select...", wxPoint(-1, -1), wxSize(400, 290))
+ClookUpDlg::ClookUpDlg(wxWindow *parent, wxChar *windowTitle, wxChar *tableName,
+                       wxChar *colName, wxChar *where, wxChar *orderBy,
+                       wxDb *pDb, const wxString &defDir)
+   : wxDialog (parent, LOOKUP_DIALOG, wxT("Select..."), wxPoint(-1, -1), wxSize(400, 290))
 {
     wxBeginBusyCursor();
     
-    wxStrcpy(ListDB_Selection,"");
+    wxStrcpy(ListDB_Selection,wxT(""));
     widgetPtrsSet = FALSE;
     lookup  = 0;
     lookup2 = 0;
     noDisplayCols = 1;
     col1Len = 0;
 
-    pLookUpSelectList       = new wxListBox(this, LOOKUP_DIALOG_SELECT,             wxPoint(  5,  15), wxSize(384, 195), 0, 0, wxLB_SINGLE|wxLB_ALWAYS_SB, wxDefaultValidator, "LookUpSelectList");
-    pLookUpOkBtn            = new wxButton(this, LOOKUP_DIALOG_OK,      "&Ok",      wxPoint(113, 222), wxSize( 70,  35), 0, wxDefaultValidator, "LookUpOkBtn");
-    pLookUpCancelBtn        = new wxButton(this, LOOKUP_DIALOG_CANCEL,  "C&ancel",  wxPoint(212, 222), wxSize( 70,  35), 0, wxDefaultValidator, "LookUpCancelBtn");
+    pLookUpSelectList       = new wxListBox(this, LOOKUP_DIALOG_SELECT,                  wxPoint(  5,  15), wxSize(384, 195), 0, 0, wxLB_SINGLE|wxLB_ALWAYS_SB, wxDefaultValidator, wxT("LookUpSelectList"));
+    pLookUpOkBtn            = new wxButton(this,  LOOKUP_DIALOG_OK,      wxT("&Ok"),     wxPoint(113, 222), wxSize( 70,  35), 0, wxDefaultValidator, wxT("LookUpOkBtn"));
+    pLookUpCancelBtn        = new wxButton(this,  LOOKUP_DIALOG_CANCEL,  wxT("C&ancel"), wxPoint(212, 222), wxSize( 70,  35), 0, wxDefaultValidator, wxT("LookUpCancelBtn"));
 
     widgetPtrsSet = TRUE;
 
     // Query the lookup table and display the result set
-    if (!(lookup = new Clookup(tableName, colName)))
+        lookup = new Clookup(tableName, colName, pDb, defDir);
+    if (!lookup)
     {
-        wxMessageBox("Error allocating memory for 'Clookup'object.","Error...");
+        wxMessageBox(wxT("Error allocating memory for 'Clookup'object."),wxT("Error..."));
         Close();
         return;
     }
@@ -198,8 +201,8 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName, cha
     if (!lookup->Open())
     {
         wxString tStr;
-        tStr.Printf("Unable to open the table '%s'.",tableName);
-        wxMessageBox(tStr,"ODBC Error...");
+        tStr.Printf(wxT("Unable to open the table '%s'."),tableName);
+        wxMessageBox(tStr,wxT("ODBC Error..."));
         Close();
         return;
     }
@@ -208,7 +211,7 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName, cha
     lookup->SetWhereClause(where);
     if (!lookup->Query())
     {
-        wxMessageBox("ODBC error during Query()","ODBC Error...");
+        wxMessageBox(wxT("ODBC error during Query()"),wxT("ODBC Error..."));
         Close();
         return;
     }
@@ -221,7 +224,7 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName, cha
     pLookUpSelectList->SetSelection(0);
 
     // Make the OK activate by pressing Enter
-    if (pLookUpSelectList->Number())
+    if (pLookUpSelectList->GetCount())
         pLookUpOkBtn->SetDefault();
     else
     {
@@ -245,7 +248,7 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName, cha
 //    1) 2 columns rather than one
 // 2) The ability to select DISTINCT column values
 //
-// Only set distinctValues equal to true if necessary.  In many cases, the constraints
+// Only set distinctValues equal to TRUE if necessary.  In many cases, the constraints
 // of the index(es) will enforce this uniqueness.  Selecting DISTINCT does require
 // overhead by the database to ensure that all values returned are distinct.  Therefore,
 // use this ONLY when you need it.
@@ -258,18 +261,20 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName, cha
 // since it cannot be derived when you query using your own sql statement.
 //
 // The optional database connection can be used if you'd like the lookup class
-// to use a database pointer other than the global READONLY_DB.  This is necessary if
+// to use a database pointer other than wxGetApp().READONLY_DB.  This is necessary if
 // records are being saved, but not committed to the db, yet should be included
 // in the lookup window.
 //
-ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
-    char *dispCol1, char *dispCol2, char *where, char *orderBy, bool distinctValues,
-    char *selectStmt, int maxLenCol1, wxDb *pDb, bool allowOk)  : wxDialog (parent, LOOKUP_DIALOG, "Select...", wxPoint(-1, -1), wxSize(400, 290))
+ClookUpDlg::ClookUpDlg(wxWindow *parent, wxChar *windowTitle, wxChar *tableName,
+                       wxChar *dispCol1, wxChar *dispCol2, wxChar *where, wxChar *orderBy,
+                       wxDb *pDb, const wxString &defDir, bool distinctValues, 
+                       wxChar *selectStmt, int maxLenCol1, bool allowOk)
+   : wxDialog (parent, LOOKUP_DIALOG, wxT("Select..."), wxPoint(-1, -1), wxSize(400, 290))
 {
     wxBeginBusyCursor();
     
-    wxStrcpy(ListDB_Selection,"");
-    wxStrcpy(ListDB_Selection2,"");
+    wxStrcpy(ListDB_Selection,wxT(""));
+    wxStrcpy(ListDB_Selection2,wxT(""));
     widgetPtrsSet = FALSE;
     lookup  = 0;
     lookup2 = 0;
@@ -280,19 +285,20 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
 
     // this is done with fixed font so that the second column (if any) will be left
     // justified in the second column
-    pLookUpSelectList        = new wxListBox(this, LOOKUP_DIALOG_SELECT, wxPoint(5, 15), wxSize(384, 195), 0, 0, wxLB_SINGLE|wxLB_ALWAYS_SB, wxDefaultValidator, "LookUpSelectList");
+    pLookUpSelectList        = new wxListBox(this, LOOKUP_DIALOG_SELECT, wxPoint(5, 15), wxSize(384, 195), 0, 0, wxLB_SINGLE|wxLB_ALWAYS_SB, wxDefaultValidator, wxT("LookUpSelectList"));
 
     pLookUpSelectList->SetFont(fixedFont);
 
-    pLookUpOkBtn            = new wxButton(this, LOOKUP_DIALOG_OK,      "&Ok",        wxPoint(113, 222), wxSize(70, 35), 0, wxDefaultValidator, "LookUpOkBtn");
-    pLookUpCancelBtn        = new wxButton(this, LOOKUP_DIALOG_CANCEL,  "C&ancel",    wxPoint(212, 222), wxSize(70, 35), 0, wxDefaultValidator, "LookUpCancelBtn");
+    pLookUpOkBtn            = new wxButton(this, LOOKUP_DIALOG_OK,      wxT("&Ok"),        wxPoint(113, 222), wxSize(70, 35), 0, wxDefaultValidator, wxT("LookUpOkBtn"));
+    pLookUpCancelBtn        = new wxButton(this, LOOKUP_DIALOG_CANCEL,  wxT("C&ancel"),    wxPoint(212, 222), wxSize(70, 35), 0, wxDefaultValidator, wxT("LookUpCancelBtn"));
 
     widgetPtrsSet = TRUE;
 
     // Query the lookup table and display the result set
-    if (!(lookup2 = new Clookup2(tableName, dispCol1, dispCol2, pDb)))
+        lookup2 = new Clookup2(tableName, dispCol1, dispCol2, pDb, defDir);
+    if (!lookup2)
     {
-        wxMessageBox("Error allocating memory for 'Clookup2'object.","Error...");
+        wxMessageBox(wxT("Error allocating memory for 'Clookup2' object."),wxT("Error..."));
         Close();
         return;
     }
@@ -300,9 +306,9 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
     if (!lookup2->Open())
     {
         wxString tStr;
-        tStr.Printf("Unable to open the table '%s'.",tableName);
-        tStr += GetExtendedDBErrorMsg2(__FILE__,__LINE__);
-        wxMessageBox(tStr,"ODBC Error...");
+        tStr.Printf(wxT("Unable to open the table '%s'."),tableName);
+        tStr += GetExtendedDBErrorMsg2(pDb,__FILE__,__LINE__);
+        wxMessageBox(tStr,wxT("ODBC Error..."));
         Close();
         return;
     }
@@ -316,26 +322,26 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
         maxColLen = LOOKUP_COL_LEN;
         if (wxStrlen(dispCol2))
         {
-            wxString q = "SELECT MAX({fn LENGTH(";
+            wxString q = wxT("SELECT MAX({fn LENGTH(");
             q += dispCol1;
-            q += ")}), NULL";
-            q += " FROM ";
+            q += wxT(")}), NULL");
+            q += wxT(" FROM ");
             q += tableName;
             if (wxStrlen(where))
             {
-                q += " WHERE ";
+                q += wxT(" WHERE ");
                 q += where;
             }
-            if (!lookup2->QueryBySqlStmt((char*) (const char*) q))
+            if (!lookup2->QueryBySqlStmt(q))
             {
-                wxMessageBox("ODBC error during QueryBySqlStmt()","ODBC Error...");
+                wxMessageBox(wxT("ODBC error during QueryBySqlStmt()"),wxT("ODBC Error..."));
                 Close();
                 return;
             }
             if (lookup2->GetNext())
                 maxColLen = col1Len = atoi(lookup2->lookupCol1);
             else
-                wxMessageBox("ODBC error during GetNext()","ODBC Error...");
+                wxMessageBox(wxT("ODBC error during GetNext()"),wxT("ODBC Error..."));
         }
     }
 
@@ -344,7 +350,7 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
     {
         if (!lookup2->QueryBySqlStmt(selectStmt))
         {
-            wxMessageBox("ODBC error during QueryBySqlStmt()","ODBC Error...");
+            wxMessageBox(wxT("ODBC error during QueryBySqlStmt()"),wxT("ODBC Error..."));
             Close();
             return;
         }
@@ -355,7 +361,7 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
         lookup2->SetWhereClause(where);
         if (!lookup2->Query(FALSE, distinctValues))
         {
-            wxMessageBox("ODBC error during Query()","ODBC Error...");
+            wxMessageBox(wxT("ODBC error during Query()"),wxT("ODBC Error..."));
             Close();
             return;
         }
@@ -368,7 +374,7 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
         s = lookup2->lookupCol1;
         if (wxStrlen(dispCol2))        // Append the optional column 2
         {
-            s.Append(' ', (maxColLen + LISTDB_NO_SPACES_BETWEEN_COLS - wxStrlen(lookup2->lookupCol1)));
+            s.Append(wxT(' '), (maxColLen + LISTDB_NO_SPACES_BETWEEN_COLS - wxStrlen(lookup2->lookupCol1)));
             s.Append(lookup2->lookupCol2);
         }
         pLookUpSelectList->Append(s);
@@ -378,7 +384,7 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
     pLookUpSelectList->SetSelection(0);
 
     // Make the OK activate by pressing Enter
-    if (pLookUpSelectList->Number())
+    if (pLookUpSelectList->GetCount())
         pLookUpOkBtn->SetDefault();
     else
     {
@@ -407,8 +413,10 @@ void ClookUpDlg::OnClose(wxCloseEvent& event)
     if (lookup2)
         delete lookup2;
 
+     SetReturnCode(1);
+
     while (wxIsBusy()) wxEndBusyCursor();
-   event.Skip();
+    event.Skip();
 
 //    return TRUE;
 
@@ -451,8 +459,8 @@ void ClookUpDlg::OnCommand(wxWindow& win, wxCommandEvent& event)
             }
             else
             {
-                wxStrcpy(ListDB_Selection,"");
-                wxStrcpy(ListDB_Selection2,"");
+                wxStrcpy(ListDB_Selection,wxT(""));
+                wxStrcpy(ListDB_Selection2,wxT(""));
             }
             Close();
         }  // OK Button
@@ -460,8 +468,8 @@ void ClookUpDlg::OnCommand(wxWindow& win, wxCommandEvent& event)
         // Cancel Button
         if (widgetName == pLookUpCancelBtn->GetName())
         {
-            wxStrcpy (ListDB_Selection,"");
-            wxStrcpy (ListDB_Selection2,"");
+            wxStrcpy (ListDB_Selection,wxT(""));
+            wxStrcpy (ListDB_Selection2,wxT(""));
             Close();
         }  // Cancel Button
     }