add const for methods return values.

8 files changed, 17 insertions, 17 deletions

diff --git a/src/gui/equipmentwindow.h b/src/gui/equipmentwindow.h
index 2d2e2ca81..5fd69c23a 100644
--- a/src/gui/equipmentwindow.h
+++ b/src/gui/equipmentwindow.h
@@ -85,7 +85,7 @@ class EquipmentWindow final : public Window, public gcn::ActionListener
 
         void mousePressed(gcn::MouseEvent& mouseEvent) override;
 
-        Item* getEquipment(int i) const A_WARN_UNUSED
+        const Item* getEquipment(const int i) const A_WARN_UNUSED
         { return mEquipment ? mEquipment->getEquipment(i) : nullptr; }
 
         void setBeing(Being *const being);
diff --git a/src/gui/popupmenu.cpp b/src/gui/popupmenu.cpp
index ed770047f..c12365cc6 100644
--- a/src/gui/popupmenu.cpp
+++ b/src/gui/popupmenu.cpp
@@ -1239,7 +1239,7 @@ void PopupMenu::handleLink(const std::string &link,
     {
         if (viewport)
         {
-            const Map *const map = viewport->getCurrentMap();
+            const Map *const map = viewport->getMap();
             if (map)
             {
                 SpecialLayer *const specialLayer = map->getSpecialLayer();
diff --git a/src/gui/quitdialog.cpp b/src/gui/quitdialog.cpp
index da67231d5..b601fe323 100644
--- a/src/gui/quitdialog.cpp
+++ b/src/gui/quitdialog.cpp
@@ -151,7 +151,7 @@ void QuitDialog::action(const gcn::ActionEvent &event)
     {
         if (viewport)
         {
-            const Map *const map = viewport->getCurrentMap();
+            const Map *const map = viewport->getMap();
             if (map)
                 map->saveExtraLayer();
         }
diff --git a/src/gui/sdlfont.cpp b/src/gui/sdlfont.cpp
index d332b59db..65ba14fc6 100644
--- a/src/gui/sdlfont.cpp
+++ b/src/gui/sdlfont.cpp
@@ -599,7 +599,7 @@ void SDLFont::doClean()
     }
 }
 
-TextChunkList *SDLFont::getCache() const
+const TextChunkList *SDLFont::getCache() const
 {
     return mCache;
 }
diff --git a/src/gui/sdlfont.h b/src/gui/sdlfont.h
index eedc4c6e0..55dafe744 100644
--- a/src/gui/sdlfont.h
+++ b/src/gui/sdlfont.h
@@ -125,7 +125,7 @@ class SDLFont final : public gcn::Font
 
         int getHeight() const override  A_WARN_UNUSED;
 
-        TextChunkList *getCache() const A_WARN_UNUSED;
+        const TextChunkList *getCache() const A_WARN_UNUSED;
 
         /**
          * @see Font::drawString
diff --git a/src/gui/skilldialog.cpp b/src/gui/skilldialog.cpp
index 1f36d6de9..672928551 100644
--- a/src/gui/skilldialog.cpp
+++ b/src/gui/skilldialog.cpp
@@ -629,14 +629,20 @@ void SkillDialog::addSkill(const int id, const int level, const int range,
     }
 }
 
-SkillInfo* SkillDialog::getSkill(const int id)
+SkillInfo* SkillDialog::getSkill(const int id) const
 {
-    return mSkills[id];
+    SkillMap::const_iterator it = mSkills.find(id);
+    if (it != mSkills.end())
+        return (*it).second;
+    return nullptr;
 }
 
-SkillInfo* SkillDialog::getSkillByItem(const int itemId)
+SkillInfo* SkillDialog::getSkillByItem(const int itemId) const
 {
-    return mSkills[itemId - SKILL_MIN_ID];
+    SkillMap::const_iterator it = mSkills.find(itemId - SKILL_MIN_ID);
+    if (it != mSkills.end())
+        return (*it).second;
+    return nullptr;
 }
 
 void SkillDialog::widgetResized(const gcn::Event &event)
diff --git a/src/gui/skilldialog.h b/src/gui/skilldialog.h
index 9406293a4..9715a3bf3 100644
--- a/src/gui/skilldialog.h
+++ b/src/gui/skilldialog.h
@@ -76,9 +76,9 @@ class SkillDialog final : public Window, public gcn::ActionListener
         void addSkill(const int id, const int level, const int range,
                       const bool modifiable);
 
-        SkillInfo* getSkill(const int id) A_WARN_UNUSED;
+        SkillInfo* getSkill(const int id) const A_WARN_UNUSED;
 
-        SkillInfo* getSkillByItem(const int itemId) A_WARN_UNUSED;
+        SkillInfo* getSkillByItem(const int itemId) const A_WARN_UNUSED;
 
         bool hasSkills() const A_WARN_UNUSED
         { return !mSkills.empty(); }
diff --git a/src/gui/viewport.h b/src/gui/viewport.h
index 3d491e9c2..45b5fd753 100644
--- a/src/gui/viewport.h
+++ b/src/gui/viewport.h
@@ -229,12 +229,6 @@ class Viewport final : public WindowContainer,
         void scrollBy(const int x, const int y)
         { mPixelViewX += x; mPixelViewY += y; }
 
-        /**
-         * Returns the current map object.
-         */
-        Map *getCurrentMap() const A_WARN_UNUSED
-        { return mMap; }
-
         int getDebugPath() const A_WARN_UNUSED
         { return mShowDebugPath; }