Fixed compile warnings and crash in skill dialog

The crash was probably due to roaming or uninitialized pointers in the
skill map. Please remember to clear it after deleting its contents, and
also remember that operator[] is non-const and will insert an element
when it's not already there. The proper way to see if a map contains an
element is by using find().

1 files changed, 15 insertions, 12 deletions

diff --git a/src/gui/skilldialog.cpp b/src/gui/skilldialog.cpp
index 5e700387..15f93b9c 100644
--- a/src/gui/skilldialog.cpp
+++ b/src/gui/skilldialog.cpp
@@ -62,7 +62,7 @@ struct SkillInfo
 class SkillEntry : public Container, gcn::WidgetListener
 {
     public:
-        SkillEntry(struct SkillInfo *info);
+        SkillEntry(SkillInfo *info);
 
         void widgetResized(const gcn::Event &event);
 
@@ -70,7 +70,7 @@ class SkillEntry : public Container, gcn::WidgetListener
 
     protected:
         friend class SkillDialog;
-        struct SkillInfo *mInfo;
+        SkillInfo *mInfo;
 
     private:
         Icon *mIcon;
@@ -152,15 +152,16 @@ void SkillDialog::logic()
 
 std::string SkillDialog::update(int id)
 {
-    SkillInfo *info = mSkills[id];
+    SkillMap::iterator i = mSkills.find(id);
 
-    if (info)
+    if (i != mSkills.end())
     {
+        SkillInfo *info = i->second;
         info->display->update();
         return info->name;
     }
-    else
-        return "";
+
+    return std::string();
 }
 
 void SkillDialog::update()
@@ -180,6 +181,7 @@ void SkillDialog::loadSkills(const std::string &file)
 {
     // TODO: mTabs->clear();
     delete_all(mSkills);
+    mSkills.clear();
 
     XML::Document doc(file);
     xmlNodePtr root = doc.rootNode();
@@ -239,21 +241,23 @@ void SkillDialog::loadSkills(const std::string &file)
 
 void SkillDialog::setModifiable(int id, bool modifiable)
 {
-    SkillInfo *info = mSkills[id];
+    SkillMap::iterator i = mSkills.find(id);
 
-    if (info)
+    if (i != mSkills.end())
     {
+        SkillInfo *info = i->second;
         info->modifiable = modifiable;
         info->display->update();
     }
 }
 
-SkillEntry::SkillEntry(struct SkillInfo *info) : mInfo(info),
+SkillEntry::SkillEntry(SkillInfo *info) :
+    mInfo(info),
     mIcon(NULL),
     mNameLabel(new Label(info->name)),
-    mProgress(new ProgressBar(0.0f, 200, 20, gcn::Color(150, 150, 150))),
+    mLevelLabel(new Label("999")),
     mIncrease(new Button("+", "inc", skillDialog)),
-    mLevelLabel(new Label("999"))
+    mProgress(new ProgressBar(0.0f, 200, 20, gcn::Color(150, 150, 150)))
 {
     setFrameSize(1);
     setOpaque(false);
@@ -312,7 +316,6 @@ void SkillEntry::widgetResized(const gcn::Event &event)
 void SkillEntry::update()
 {
     int baseLevel = player_node->getAttributeBase(mInfo->id);
-
     int effLevel = player_node->getAttributeEffective(mInfo->id);
 
     if (baseLevel <= 0 && !mInfo->modifiable)