added new ThemeProxy for automatically handling focused vs. unfocused ThemeItems

1 files changed, 71 insertions, 0 deletions

diff --git a/src/FocusableTheme.hh b/src/FocusableTheme.hh
new file mode 100644
index 0000000..d0f5d9e
--- /dev/null
+++ b/src/FocusableTheme.hh
@@ -0,0 +1,71 @@
+// FocusableTheme.hh
+// Copyright (c) 2008 Fluxbox Team (fluxgen at fluxbox dot org)
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+#ifndef FOCUSABLETHEME_HH
+#define FOCUSABLETHEME_HH
+
+#include "Focusable.hh"
+#include "FbTk/Observer.hh"
+#include "FbTk/Theme.hh"
+
+template <typename BaseTheme>
+class FocusableTheme: public FbTk::ThemeProxy<BaseTheme>,
+                      private FbTk::Observer {
+public:
+    FocusableTheme(Focusable &win, FbTk::ThemeProxy<BaseTheme> &focused,
+                   FbTk::ThemeProxy<BaseTheme> &unfocused):
+        m_win(win), m_focused_theme(focused), m_unfocused_theme(unfocused) {
+        m_win.focusSig().attach(this);
+        m_win.attentionSig().attach(this);
+        m_focused_theme.reconfigSig().attach(this);
+        m_unfocused_theme.reconfigSig().attach(this);
+    }
+
+    Focusable &win() { return m_win; }
+    const Focusable &win() const { return m_win; }
+
+    FbTk::ThemeProxy<BaseTheme> &focusedTheme() { return m_focused_theme; }
+    const FbTk::ThemeProxy<BaseTheme> &focusedTheme() const { return m_focused_theme; }
+
+    FbTk::ThemeProxy<BaseTheme> &unfocusedTheme() { return m_unfocused_theme; }
+    const FbTk::ThemeProxy<BaseTheme> &unfocusedTheme() const { return m_unfocused_theme; }
+
+    FbTk::Subject &reconfigSig() { return m_reconfig_sig; }
+    const FbTk::Subject &reconfigSig() const { return m_reconfig_sig; }
+
+    virtual BaseTheme &operator *() {
+        return (m_win.isFocused() || m_win.getAttentionState()) ?
+               *m_focused_theme : *m_unfocused_theme;
+    }
+    virtual const BaseTheme &operator *() const {
+        return (m_win.isFocused() || m_win.getAttentionState()) ?
+               *m_focused_theme : *m_unfocused_theme;
+    }
+
+private:
+    void update(FbTk::Subject *subj) { m_reconfig_sig.notify(); }
+
+    Focusable &m_win;
+    FbTk::ThemeProxy<BaseTheme> &m_focused_theme, &m_unfocused_theme;
+    FbTk::Subject m_reconfig_sig;
+};
+
+#endif // FOCUSABLETHEME_HH