Attach a modifiedSig handler to the session.cacheMax resource

2 files changed, 10 insertions, 5 deletions

diff --git a/src/FbTk/ImageControl.cc b/src/FbTk/ImageControl.cc
index 510ea35..cd9774f 100644
--- a/src/FbTk/ImageControl.cc
+++ b/src/FbTk/ImageControl.cc
@@ -177,7 +177,7 @@ struct ImageControl::Cache {
 ImageControl::ImageControl(int screen_num,
                            int cpc, unsigned int cache_timeout, unsigned long cmax):
     m_colors_per_channel(cpc),
-    m_screen_num(screen_num) {
+    m_screen_num(screen_num), m_cache_max(cmax) {
 
     Display *disp = FbTk::App::instance()->display();
 
@@ -185,8 +185,6 @@ ImageControl::ImageControl(int screen_num,
     m_visual = DefaultVisual(disp, screen_num);
     m_colormap = DefaultColormap(disp, screen_num);
 
-    cache_max = cmax;
-
     RefCount<Command<void> > clean_cache(new SimpleCommand<ImageControl>(*this, &ImageControl::cleanCache));
     m_timer.setCommand(clean_cache);
     setCacheTimeout(cache_timeout * FbTk::FbTime::IN_MILLISECONDS);
@@ -226,6 +224,12 @@ void ImageControl::setCacheTimeout(unsigned int cache_timeout) {
         m_timer.stop();
 }
 
+void ImageControl::setCacheMax(unsigned long cache_max) {
+    m_cache_max = cache_max;
+    if (cache.size() > m_cache_max)
+        cleanCache();
+}
+
 Pixmap ImageControl::searchCache(unsigned int width, unsigned int height,
                                  const Texture &text, FbTk::Orientation orient) const {
 
@@ -326,7 +330,7 @@ Pixmap ImageControl::renderImage(unsigned int width, unsigned int height,
 
         cache.push_back(tmp);
 
-        if (cache.size() > cache_max)
+        if (cache.size() > m_cache_max)
             cleanCache();
 
         return pixmap;
diff --git a/src/FbTk/ImageControl.hh b/src/FbTk/ImageControl.hh
index 1795bbf..983b319 100644
--- a/src/FbTk/ImageControl.hh
+++ b/src/FbTk/ImageControl.hh
@@ -46,6 +46,7 @@ public:
     virtual ~ImageControl();
 
     void setCacheTimeout(unsigned int cache_timeout);
+    void setCacheMax(unsigned long cache_max);
 
     int depth() const { return m_screen_depth; }
     int colorsPerChannel() const { return m_colors_per_channel; }
@@ -112,7 +113,7 @@ private:
     typedef std::list<Cache *> CacheList;
 
     mutable CacheList cache;
-    unsigned long cache_max;
+    unsigned long m_cache_max;
 };
 
 } // end namespace FbTk