X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/77ffb5937e89927b621128789401db8921fe580f..6243633c6308a9353573cc27463e5a8554b61a0c:/src/gtk1/choice.cpp

diff --git a/src/gtk1/choice.cpp b/src/gtk1/choice.cpp
index 651bf9d161..9b03f45cfe 100644
--- a/src/gtk1/choice.cpp
+++ b/src/gtk1/choice.cpp
@@ -1,25 +1,23 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        choice.cpp
+// Name:        src/gtk1/choice.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
-// Licence:     wxWidgets licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "choice.h"
-#endif
-
-#include "wx/defs.h"
+#include "wx/wxprec.h"
 
 #if wxUSE_CHOICE
 
 #include "wx/choice.h"
-#include "wx/arrstr.h"
 
-#include "wx/gtk/private.h"
+#ifndef WX_PRECOMP
+    #include "wx/arrstr.h"
+#endif
+
+#include "wx/gtk1/private.h"
 
 //-----------------------------------------------------------------------------
 // idle system
@@ -38,6 +36,7 @@ extern bool   g_blockEventsOnDrag;
 // "activate"
 //-----------------------------------------------------------------------------
 
+extern "C" {
 static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice )
 {
     if (g_isIdle)
@@ -47,6 +46,26 @@ static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *
 
     if (g_blockEventsOnDrag) return;
 
+    int selection = wxNOT_FOUND;
+
+    GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(choice->GetHandle()) ) );
+    int count = 0;
+
+    GList *child = menu_shell->children;
+    while (child)
+    {
+        GtkBin *bin = GTK_BIN( child->data );
+        if (!bin->child)
+        {
+            selection = count;
+            break;
+        }
+        child = child->next;
+        count++;
+    }
+
+    choice->m_selection_hack = selection;
+
     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() );
     int n = choice->GetSelection();
 
@@ -61,6 +80,7 @@ static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *
 
     choice->GetEventHandler()->ProcessEvent(event);
 }
+}
 
 //-----------------------------------------------------------------------------
 // wxChoice
@@ -90,16 +110,16 @@ bool wxChoice::Create( wxWindow *parent, wxWindowID id,
                        int n, const wxString choices[],
                        long style, const wxValidator& validator, const wxString &name )
 {
-    m_needParent = TRUE;
+    m_needParent = true;
 #if (GTK_MINOR_VERSION > 0)
-    m_acceptsFocus = TRUE;
+    m_acceptsFocus = true;
 #endif
 
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
     {
         wxFAIL_MSG( wxT("wxChoice creation failed") );
-        return FALSE;
+        return false;
     }
 
     m_widget = gtk_option_menu_new();
@@ -111,9 +131,12 @@ bool wxChoice::Create( wxWindow *parent, wxWindowID id,
         m_strings = new wxSortedArrayString;
     }
 
+    // begin with no selection
+    m_selection_hack = wxNOT_FOUND;
+
     GtkWidget *menu = gtk_menu_new();
 
-    for (int i = 0; i < n; i++)
+    for (unsigned int i = 0; i < (unsigned int)n; i++)
     {
         GtkAddHelper(menu, i, choices[i]);
     }
@@ -123,9 +146,9 @@ bool wxChoice::Create( wxWindow *parent, wxWindowID id,
     m_parent->DoAddChild( this );
 
     PostCreation(size);
-    SetBestSize(size); // need this too because this is a wxControlWithItems
+    SetInitialSize(size); // need this too because this is a wxControlWithItems
 
-    return TRUE;
+    return true;
 }
 
 wxChoice::~wxChoice()
@@ -144,20 +167,27 @@ int wxChoice::DoAppend( const wxString &item )
     return GtkAddHelper(menu, GetCount(), item);
 }
 
-int wxChoice::DoInsert( const wxString &item, int pos )
+int wxChoice::DoInsert( const wxString &item, unsigned int pos )
 {
     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") );
-    wxCHECK_MSG( (pos>=0) && (pos<=GetCount()), -1, wxT("invalid index"));
+    wxCHECK_MSG( IsValidInsert(pos), -1, wxT("invalid index"));
 
     if (pos == GetCount())
         return DoAppend(item);
 
     GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) );
 
+    // if the item to insert is at or before the selection, and the selection is valid
+    if (((int)pos <= m_selection_hack) && (m_selection_hack != wxNOT_FOUND))
+    {
+        // move the selection forward one
+        m_selection_hack++;
+    }
+
     return GtkAddHelper(menu, pos, item);
 }
 
-void wxChoice::DoSetItemClientData( int n, void* clientData )
+void wxChoice::DoSetItemClientData(unsigned int n, void* clientData)
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
 
@@ -167,7 +197,7 @@ void wxChoice::DoSetItemClientData( int n, void* clientData )
     node->SetData( (wxObject*) clientData );
 }
 
-void* wxChoice::DoGetItemClientData( int n ) const
+void* wxChoice::DoGetItemClientData(unsigned int n) const
 {
     wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid choice control") );
 
@@ -177,7 +207,7 @@ void* wxChoice::DoGetItemClientData( int n ) const
     return node->GetData();
 }
 
-void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
+void wxChoice::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
 
@@ -189,7 +219,7 @@ void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
     node->SetData( (wxObject*) clientData );
 }
 
-wxClientData* wxChoice::DoGetItemClientObject( int n ) const
+wxClientData* wxChoice::DoGetItemClientObject(unsigned int n) const
 {
     wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid choice control") );
 
@@ -212,7 +242,7 @@ void wxChoice::Clear()
     {
         // destroy the data (due to Robert's idea of using wxList<wxObject>
         // and not wxList<wxClientData> we can't just say
-        // m_clientList.DeleteContents(TRUE) - this would crash!
+        // m_clientList.DeleteContents(true) - this would crash!
         wxList::compatibility_iterator node = m_clientList.GetFirst();
         while ( node )
         {
@@ -224,18 +254,33 @@ void wxChoice::Clear()
 
     if ( m_strings )
         m_strings->Clear();
+
+    // begin with no selection
+    m_selection_hack = wxNOT_FOUND;
 }
 
-void wxChoice::Delete( int n )
+void wxChoice::Delete(unsigned int n)
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
 
     // VZ: apparently GTK+ doesn't have a built-in function to do it (not even
     //     in 2.0), hence this dumb implementation -- still better than nothing
-    int i,
-        count = GetCount();
+    unsigned int i;
+    unsigned int count = GetCount();
 
-    wxCHECK_RET( n >= 0 && n < count, _T("invalid index in wxChoice::Delete") );
+    wxCHECK_RET( IsValid(n), _T("invalid index in wxChoice::Delete") );
+
+    // if the item to delete is before the selection, and the selection is valid
+    if (((int)n < m_selection_hack) && (m_selection_hack != wxNOT_FOUND))
+    {
+        // move the selection back one
+        m_selection_hack--;
+    }
+    else if ((int)n == m_selection_hack)
+    {
+        // invalidate the selection
+        m_selection_hack = wxNOT_FOUND;
+    }
 
     const bool hasClientData = m_clientDataItemsType != wxClientData_None;
     const bool hasObjectData = m_clientDataItemsType == wxClientData_Object;
@@ -289,9 +334,9 @@ void wxChoice::Delete( int n )
     }
 }
 
-int wxChoice::FindString( const wxString &string ) const
+int wxChoice::FindString( const wxString &string, bool bCase ) const
 {
-    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") );
+    wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid choice") );
 
     // If you read this code once and you think you understand
     // it, then you are very wrong. Robert Roebling.
@@ -310,52 +355,32 @@ int wxChoice::FindString( const wxString &string ) const
 
         wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
 
-#ifdef __WXGTK20__
-         wxString tmp( wxGTK_CONV_BACK( gtk_label_get_text( label) ) );
-#else
          wxString tmp( label->label );
-#endif
-        if (string == tmp)
+
+         if (string.IsSameAs( tmp, bCase ))
             return count;
 
         child = child->next;
         count++;
     }
 
-    return -1;
+    return wxNOT_FOUND;
 }
 
 int wxChoice::GetSelection() const
 {
-    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") );
-
-#ifdef __WXGTK20__
-
-    return gtk_option_menu_get_history( GTK_OPTION_MENU(m_widget) );
-
-#else
-    GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
-    int count = 0;
+    wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid choice") );
 
-    GList *child = menu_shell->children;
-    while (child)
-    {
-        GtkBin *bin = GTK_BIN( child->data );
-        if (!bin->child) return count;
-        child = child->next;
-        count++;
-    }
+    return m_selection_hack;
 
-    return -1;
-#endif
 }
 
-void wxChoice::SetString( int n, const wxString& str )
+void wxChoice::SetString(unsigned int n, const wxString& str )
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
 
     GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
-    int count = 0;
+    unsigned int count = 0;
     GList *child = menu_shell->children;
     while (child)
     {
@@ -370,8 +395,8 @@ void wxChoice::SetString( int n, const wxString& str )
 
             wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
 
-            gtk_label_set_text( label, wxGTK_CONV( str ) ); 
-            
+            gtk_label_set_text( label, wxGTK_CONV( str ) );
+
             return;
         }
         child = child->next;
@@ -379,12 +404,12 @@ void wxChoice::SetString( int n, const wxString& str )
     }
 }
 
-wxString wxChoice::GetString( int n ) const
+wxString wxChoice::GetString(unsigned int n) const
 {
-    wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid choice") );
+    wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid choice") );
 
     GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
-    int count = 0;
+    unsigned int count = 0;
     GList *child = menu_shell->children;
     while (child)
     {
@@ -399,11 +424,7 @@ wxString wxChoice::GetString( int n ) const
 
             wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
 
-#ifdef __WXGTK20__
-            return wxString( wxGTK_CONV_BACK( gtk_label_get_text( label) ) );
-#else
             return wxString( label->label );
-#endif
         }
         child = child->next;
         count++;
@@ -411,15 +432,15 @@ wxString wxChoice::GetString( int n ) const
 
     wxFAIL_MSG( wxT("wxChoice: invalid index in GetString()") );
 
-    return wxT("");
+    return wxEmptyString;
 }
 
-int wxChoice::GetCount() const
+unsigned int wxChoice::GetCount() const
 {
     wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid choice") );
 
     GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
-    int count = 0;
+    unsigned int count = 0;
     GList *child = menu_shell->children;
     while (child)
     {
@@ -435,21 +456,37 @@ void wxChoice::SetSelection( int n )
 
     int tmp = n;
     gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp );
+
+    // set the local selection variable manually
+    if (IsValid((unsigned int)n))
+    {
+        // a valid selection has been made
+        m_selection_hack = n;
+    }
+    else if ((n == wxNOT_FOUND) || (GetCount() == 0))
+    {
+        // invalidates the selection if there are no items
+        // or if it is specifically set to wxNOT_FOUND
+        m_selection_hack = wxNOT_FOUND;
+    }
+    else
+    {
+        // this selects the first item by default if the selection is out of bounds
+        m_selection_hack = 0;
+    }
 }
 
-void wxChoice::ApplyWidgetStyle()
+void wxChoice::DoApplyWidgetStyle(GtkRcStyle *style)
 {
-    SetWidgetStyle();
-
     GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
 
-    gtk_widget_set_style( m_widget, m_widgetStyle );
-    gtk_widget_set_style( GTK_WIDGET( menu_shell ), m_widgetStyle );
+    gtk_widget_modify_style( m_widget, style );
+    gtk_widget_modify_style( GTK_WIDGET( menu_shell ), style );
 
     GList *child = menu_shell->children;
     while (child)
     {
-        gtk_widget_set_style( GTK_WIDGET( child->data ), m_widgetStyle );
+        gtk_widget_modify_style( GTK_WIDGET( child->data ), style );
 
         GtkBin *bin = GTK_BIN( child->data );
         GtkWidget *label = (GtkWidget *) NULL;
@@ -458,15 +495,15 @@ void wxChoice::ApplyWidgetStyle()
         if (!label)
             label = BUTTON_CHILD(m_widget);
 
-        gtk_widget_set_style( label, m_widgetStyle );
+        gtk_widget_modify_style( label, style );
 
         child = child->next;
     }
 }
 
-int wxChoice::GtkAddHelper(GtkWidget *menu, int pos, const wxString& item)
+int wxChoice::GtkAddHelper(GtkWidget *menu, unsigned int pos, const wxString& item)
 {
-    wxCHECK_MSG((pos>=0) && (pos<=(int)m_clientList.GetCount()), -1, wxT("invalid index"));
+    wxCHECK_MSG(pos<=m_clientList.GetCount(), -1, wxT("invalid index"));
 
     GtkWidget *menu_item = gtk_menu_item_new_with_label( wxGTK_CONV( item ) );
 
@@ -494,11 +531,11 @@ int wxChoice::GtkAddHelper(GtkWidget *menu, int pos, const wxString& item)
         // if we're called from ctor (and GtkMenuShell is still NULL)
 
         // normal control, just append
-        if (pos == (int)m_clientList.GetCount())
+        if (pos == m_clientList.GetCount())
         {
-        gtk_menu_append( GTK_MENU(menu), menu_item );
-        m_clientList.Append( (wxObject*) NULL );
-        index = m_clientList.GetCount() - 1;
+            gtk_menu_append( GTK_MENU(menu), menu_item );
+            m_clientList.Append( (wxObject*) NULL );
+            index = m_clientList.GetCount() - 1;
         }
         else
         {
@@ -513,10 +550,16 @@ int wxChoice::GtkAddHelper(GtkWidget *menu, int pos, const wxString& item)
         gtk_widget_realize( menu_item );
         gtk_widget_realize( GTK_BIN(menu_item)->child );
 
-        if (m_widgetStyle) ApplyWidgetStyle();
+        ApplyWidgetStyle();
     }
 
-    gtk_signal_connect( GTK_OBJECT( menu_item ), "activate",
+    // The best size of a wxChoice should probably
+    // be changed everytime the control has been
+    // changed, but at least after adding an item
+    // it has to change. Adapted from Matt Ownby.
+    InvalidateBestSize();
+
+    gtk_signal_connect_after( GTK_OBJECT( menu_item ), "activate",
       GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
 
     gtk_widget_show( menu_item );
@@ -535,10 +578,10 @@ wxSize wxChoice::DoGetBestSize() const
     if ( m_widget )
     {
         int width;
-        size_t count = GetCount();
-        for ( size_t n = 0; n < count; n++ )
+        unsigned int count = GetCount();
+        for ( unsigned int n = 0; n < count; n++ )
         {
-            GetTextExtent( GetString(n), &width, NULL, NULL, NULL );
+            GetTextExtent(GetString(n), &width, NULL, NULL, NULL );
             if ( width > ret.x )
                 ret.x = width;
         }
@@ -566,16 +609,13 @@ wxSize wxChoice::DoGetBestSize() const
     if (ret.y <= 18)
         ret.y = 8 + GetCharHeight();
 
+    CacheBestSize(ret);
     return ret;
 }
 
 bool wxChoice::IsOwnGtkWindow( GdkWindow *window )
 {
-#ifdef __WXGTK20__
-    return GTK_BUTTON(m_widget)->event_window;
-#else
     return (window == m_widget->window);
-#endif
 }
 
 // static
@@ -587,4 +627,3 @@ wxChoice::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 
 
 #endif // wxUSE_CHOICE
-