| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: univ/theme.cpp |
| 3 | // Purpose: implementation of wxTheme |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 06.08.00 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com) |
| 9 | // Licence: wxWindows licence |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // =========================================================================== |
| 13 | // declarations |
| 14 | // =========================================================================== |
| 15 | |
| 16 | // --------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // --------------------------------------------------------------------------- |
| 19 | |
| 20 | // For compilers that support precompilation, includes "wx.h". |
| 21 | #include "wx/wxprec.h" |
| 22 | |
| 23 | #ifdef __BORLANDC__ |
| 24 | #pragma hdrstop |
| 25 | #endif |
| 26 | |
| 27 | #ifndef WX_PRECOMP |
| 28 | #include "wx/intl.h" |
| 29 | #include "wx/log.h" |
| 30 | #endif // WX_PRECOMP |
| 31 | |
| 32 | #include "wx/artprov.h" |
| 33 | |
| 34 | #include "wx/univ/renderer.h" |
| 35 | #include "wx/univ/inphand.h" |
| 36 | #include "wx/univ/theme.h" |
| 37 | |
| 38 | // ============================================================================ |
| 39 | // implementation |
| 40 | // ============================================================================ |
| 41 | |
| 42 | wxThemeInfo *wxTheme::ms_allThemes = NULL; |
| 43 | wxTheme *wxTheme::ms_theme = NULL; |
| 44 | |
| 45 | // ---------------------------------------------------------------------------- |
| 46 | // "dynamic" theme creation |
| 47 | // ---------------------------------------------------------------------------- |
| 48 | |
| 49 | wxThemeInfo::wxThemeInfo(Constructor c, |
| 50 | const wxString& n, |
| 51 | const wxString& d) |
| 52 | : name(n), desc(d), ctor(c) |
| 53 | { |
| 54 | // insert us (in the head of) the linked list |
| 55 | next = wxTheme::ms_allThemes; |
| 56 | wxTheme::ms_allThemes = this; |
| 57 | } |
| 58 | |
| 59 | /* static */ wxTheme *wxTheme::Create(const wxString& name) |
| 60 | { |
| 61 | // find the theme in the list by name |
| 62 | wxThemeInfo *info = ms_allThemes; |
| 63 | while ( info ) |
| 64 | { |
| 65 | if ( name.CmpNoCase(info->name) == 0 ) |
| 66 | { |
| 67 | return info->ctor(); |
| 68 | } |
| 69 | |
| 70 | info = info->next; |
| 71 | } |
| 72 | |
| 73 | return NULL; |
| 74 | } |
| 75 | |
| 76 | // ---------------------------------------------------------------------------- |
| 77 | // the default theme (called by wxApp::OnInitGui) |
| 78 | // ---------------------------------------------------------------------------- |
| 79 | |
| 80 | /* static */ bool wxTheme::CreateDefault() |
| 81 | { |
| 82 | if ( ms_theme ) |
| 83 | { |
| 84 | // we already have a theme |
| 85 | return true; |
| 86 | } |
| 87 | |
| 88 | wxString nameDefTheme; |
| 89 | |
| 90 | // use the environment variable first |
| 91 | const wxChar *p = wxGetenv(wxT("WXTHEME")); |
| 92 | if ( p ) |
| 93 | { |
| 94 | nameDefTheme = p; |
| 95 | } |
| 96 | #ifdef wxUNIV_DEFAULT_THEME |
| 97 | else // use native theme by default |
| 98 | { |
| 99 | nameDefTheme = wxSTRINGIZE_T(wxUNIV_DEFAULT_THEME); |
| 100 | } |
| 101 | #endif // wxUNIV_DEFAULT_THEME |
| 102 | |
| 103 | wxTheme *theme = Create(nameDefTheme); |
| 104 | |
| 105 | // fallback to the first one in the list |
| 106 | if ( !theme && ms_allThemes ) |
| 107 | { |
| 108 | theme = ms_allThemes->ctor(); |
| 109 | } |
| 110 | |
| 111 | // abort if still nothing |
| 112 | if ( !theme ) |
| 113 | { |
| 114 | wxLogError(_("Failed to initialize GUI: no built-in themes found.")); |
| 115 | |
| 116 | return false; |
| 117 | } |
| 118 | |
| 119 | // Set the theme as current. |
| 120 | wxTheme::Set(theme); |
| 121 | |
| 122 | return true; |
| 123 | } |
| 124 | |
| 125 | /* static */ wxTheme *wxTheme::Set(wxTheme *theme) |
| 126 | { |
| 127 | wxTheme *themeOld = ms_theme; |
| 128 | ms_theme = theme; |
| 129 | |
| 130 | if ( ms_theme ) |
| 131 | { |
| 132 | // automatically start using the art provider of the new theme if it |
| 133 | // has one |
| 134 | wxArtProvider *art = ms_theme->GetArtProvider(); |
| 135 | if ( art ) |
| 136 | wxArtProvider::Push(art); |
| 137 | } |
| 138 | |
| 139 | return themeOld; |
| 140 | } |
| 141 | |
| 142 | // ---------------------------------------------------------------------------- |
| 143 | // assorted trivial dtors |
| 144 | // ---------------------------------------------------------------------------- |
| 145 | |
| 146 | wxTheme::~wxTheme() |
| 147 | { |
| 148 | } |
| 149 | |
| 150 | |
| 151 | // ---------------------------------------------------------------------------- |
| 152 | // wxDelegateTheme |
| 153 | // ---------------------------------------------------------------------------- |
| 154 | |
| 155 | wxDelegateTheme::wxDelegateTheme(const wxString& theme) |
| 156 | { |
| 157 | m_themeName = theme; |
| 158 | m_theme = NULL; |
| 159 | } |
| 160 | |
| 161 | wxDelegateTheme::~wxDelegateTheme() |
| 162 | { |
| 163 | delete m_theme; |
| 164 | } |
| 165 | |
| 166 | bool wxDelegateTheme::GetOrCreateTheme() |
| 167 | { |
| 168 | if ( !m_theme ) |
| 169 | m_theme = wxTheme::Create(m_themeName); |
| 170 | return m_theme != NULL; |
| 171 | } |
| 172 | |
| 173 | wxRenderer *wxDelegateTheme::GetRenderer() |
| 174 | { |
| 175 | if ( !GetOrCreateTheme() ) |
| 176 | return NULL; |
| 177 | |
| 178 | return m_theme->GetRenderer(); |
| 179 | } |
| 180 | |
| 181 | wxArtProvider *wxDelegateTheme::GetArtProvider() |
| 182 | { |
| 183 | if ( !GetOrCreateTheme() ) |
| 184 | return NULL; |
| 185 | |
| 186 | return m_theme->GetArtProvider(); |
| 187 | } |
| 188 | |
| 189 | wxInputHandler *wxDelegateTheme::GetInputHandler(const wxString& control, |
| 190 | wxInputConsumer *consumer) |
| 191 | { |
| 192 | if ( !GetOrCreateTheme() ) |
| 193 | return NULL; |
| 194 | |
| 195 | return m_theme->GetInputHandler(control, consumer); |
| 196 | } |
| 197 | |
| 198 | wxColourScheme *wxDelegateTheme::GetColourScheme() |
| 199 | { |
| 200 | if ( !GetOrCreateTheme() ) |
| 201 | return NULL; |
| 202 | |
| 203 | return m_theme->GetColourScheme(); |
| 204 | } |