+/////////////////////////////////////////////////////////////////////////////
+// Name: artprov.cpp
+// Purpose: wxArtProvider class
+// Author: Vaclav Slavik
+// Modified by:
+// Created: 18/03/2002
+// RCS-ID: $Id$
+// Copyright: (c) Vaclav Slavik
+// Licence: wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// ---------------------------------------------------------------------------
+// headers
+// ---------------------------------------------------------------------------
+
+#ifdef __GNUG__
+ #pragma implementation "artprov.h"
+#endif
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if defined(__BORLANDC__)
+ #pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+ #include "wx/log.h"
+ #include "wx/list.h"
+#endif
+
+#include "wx/artprov.h"
+#include "wx/hashmap.h"
+#include "wx/module.h"
+
+
+// ===========================================================================
+// implementation
+// ===========================================================================
+
+#include "wx/listimpl.cpp"
+WX_DECLARE_LIST(wxArtProvider, wxArtProvidersList);
+WX_DEFINE_LIST(wxArtProvidersList);
+
+// ----------------------------------------------------------------------------
+// Cache class - stores already requested bitmaps
+// ----------------------------------------------------------------------------
+
+WX_DECLARE_STRING_HASH_MAP(wxBitmap, wxArtProviderBitmapsHash);
+
+class WXDLLEXPORT wxArtProviderCache
+{
+public:
+ bool GetBitmap(const wxString& full_id, wxBitmap* bmp);
+ void PutBitmap(const wxString& full_id, const wxBitmap& bmp)
+ { m_bitmapsHash[full_id] = bmp; }
+
+ void Clear();
+
+ static wxString ConstructHashID(const wxArtDomain& domain,
+ const wxArtID& id,
+ const wxSize& size);
+
+private:
+ wxArtProviderBitmapsHash m_bitmapsHash;
+};
+
+bool wxArtProviderCache::GetBitmap(const wxString& full_id, wxBitmap* bmp)
+{
+ wxArtProviderBitmapsHash::iterator entry = m_bitmapsHash.find(full_id);
+ if ( entry == m_bitmapsHash.end() )
+ {
+ return FALSE;
+ }
+ else
+ {
+ *bmp = entry->second;
+ return TRUE;
+ }
+}
+
+void wxArtProviderCache::Clear()
+{
+ m_bitmapsHash.clear();
+}
+
+/*static*/ wxString wxArtProviderCache::ConstructHashID(
+ const wxArtDomain& domain,
+ const wxArtID& id, const wxSize& size)
+{
+ wxString str;
+ str.Printf(wxT("%s-%s-%i-%i"), domain.c_str(), id.c_str(), size.x, size.y);
+ return str;
+}
+
+
+// ----------------------------------------------------------------------------
+// wxArtProvider class
+// ----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxArtProvider, wxObject)
+
+wxArtProvidersList *wxArtProvider::sm_providers = NULL;
+wxArtProviderCache *wxArtProvider::sm_cache = NULL;
+
+/*static*/ void wxArtProvider::PushProvider(wxArtProvider *provider)
+{
+ if ( !sm_providers )
+ {
+ sm_providers = new wxArtProvidersList;
+ sm_providers->DeleteContents(TRUE);
+ sm_cache = new wxArtProviderCache;
+ }
+
+ sm_providers->Insert(provider);
+}
+
+/*static*/ bool wxArtProvider::PopProvider()
+{
+ wxCHECK_MSG( sm_providers, FALSE, _T("no wxArtProvider exists") );
+ wxCHECK_MSG( sm_providers->GetCount() > 0, FALSE, _T("wxArtProviders stack is empty") );
+
+ sm_providers->DeleteNode(sm_providers->GetFirst());
+ sm_cache->Clear();
+ return TRUE;
+}
+
+/*static*/ bool wxArtProvider::RemoveProvider(wxArtProvider *provider)
+{
+ wxCHECK_MSG( sm_providers, FALSE, _T("no wxArtProvider exists") );
+
+ if ( sm_providers->DeleteObject(provider) )
+ {
+ sm_cache->Clear();
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/*static*/ void wxArtProvider::CleanUpProviders()
+{
+ wxDELETE(sm_providers);
+ wxDELETE(sm_cache);
+}
+
+/*static*/ wxBitmap wxArtProvider::GetBitmap(const wxArtDomain& domain,
+ const wxArtID& id,
+ const wxSize& size)
+{
+ wxCHECK_MSG( sm_providers, wxNullBitmap, _T("no wxArtProvider exists") );
+
+ wxString hashId = wxArtProviderCache::ConstructHashID(domain, id, size);
+
+ wxBitmap bmp;
+ if ( !sm_cache->GetBitmap(hashId, &bmp) )
+ {
+ for (wxArtProvidersList::Node *node = sm_providers->GetFirst();
+ node; node = node->GetNext())
+ {
+ bmp = node->GetData()->CreateBitmap(domain, id, size);
+ if ( bmp.Ok() )
+ break;
+ }
+ sm_cache->PutBitmap(hashId, bmp);
+ }
+
+ return bmp;
+}
+
+/*static*/ wxIcon wxArtProvider::GetIcon(const wxArtDomain& domain,
+ const wxArtID& id,
+ const wxSize& size)
+{
+ wxCHECK_MSG( sm_providers, wxNullIcon, _T("no wxArtProvider exists") );
+
+ wxBitmap bmp = GetBitmap(domain, id, size);
+ if ( bmp.Ok() )
+ {
+ wxIcon icon;
+ icon.CopyFromBitmap(bmp);
+ return icon;
+ }
+ else
+ {
+ return wxNullIcon;
+ }
+}
+
+
+
+class wxArtProviderModule: public wxModule
+{
+public:
+ bool OnInit() { return TRUE; }
+ void OnExit() { wxArtProvider::CleanUpProviders(); }
+
+ DECLARE_DYNAMIC_CLASS(wxArtProviderModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxArtProviderModule, wxModule)
projects / wxWidgets.git / commitdiff
