Add missing non null attributes into gui directory.

8 files changed, 23 insertions, 19 deletions

diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index ac61261d3..91224b714 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -470,7 +470,7 @@ void Gui::draw()
 
     int mouseX;
     int mouseY;
-    const MouseStateType button = getMouseState(&mouseX, &mouseY);
+    const MouseStateType button = getMouseState(mouseX, mouseY);
 
     if ((settings.mouseFocused || button & SDL_BUTTON(1))
         && mMouseCursors && mCustomCursor && mMouseCursorAlpha > 0.0F)
@@ -942,7 +942,7 @@ MouseEvent *Gui::createMouseEvent(Window *const widget)
     int mouseY = 0;
 
     getAbsolutePosition(widget, x, y);
-    getMouseState(&mouseX, &mouseY);
+    getMouseState(mouseX, mouseY);
 
     return new MouseEvent(widget,
         MouseEventType::MOVED,
@@ -953,8 +953,11 @@ MouseEvent *Gui::createMouseEvent(Window *const widget)
 }
 
 void Gui::getAbsolutePosition(Widget *restrict widget,
-                              int &restrict x, int &restrict y)
+                              int &restrict x,
+                              int &restrict y)
 {
+    if (!widget)
+        return;
     x = 0;
     y = 0;
     while (widget->getParent())
@@ -1103,12 +1106,12 @@ void Gui::removeDragged(const Widget *const widget)
         mFocusHandler->setDraggedWidget(nullptr);
 }
 
-MouseStateType Gui::getMouseState(int *const x, int *const y)
+MouseStateType Gui::getMouseState(int &x, int &y)
 {
-    const MouseStateType res = SDL_GetMouseState(x, y);
+    const MouseStateType res = SDL_GetMouseState(&x, &y);
     const int scale = mainGraphics->getScale();
-    (*x) /= scale;
-    (*y) /= scale;
+    x /= scale;
+    y /= scale;
     return res;
 }
 
diff --git a/src/gui/gui.h b/src/gui/gui.h
index a8b862f63..209c40749 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -226,7 +226,7 @@ class Gui final
         int getLastMouseY() const
         { return mLastMouseY; }
 
-        static MouseStateType getMouseState(int *const x, int *const y);
+        static MouseStateType getMouseState(int &x, int &y);
 
         /**
          * Sets the top widget. The top widget is the root widget
diff --git a/src/gui/popups/popupmenu.cpp b/src/gui/popups/popupmenu.cpp
index 10ae03365..10b1db4ac 100644
--- a/src/gui/popups/popupmenu.cpp
+++ b/src/gui/popups/popupmenu.cpp
@@ -414,7 +414,7 @@ void PopupMenu::setMousePos()
     }
     else
     {
-        Gui::getMouseState(&mX, &mY);
+        Gui::getMouseState(mX, mY);
     }
 }
 
diff --git a/src/gui/skin.cpp b/src/gui/skin.cpp
index 5ffd3c7c9..602d7204e 100644
--- a/src/gui/skin.cpp
+++ b/src/gui/skin.cpp
@@ -42,10 +42,10 @@ Skin::Skin(ImageRect *const restrict skin,
     mFilePath(filePath),
     mName(name),
     mBorder(skin),
-    mCloseImage(images->grid[0]),
-    mCloseImageHighlighted(images->grid[1]),
-    mStickyImageUp(images->grid[2]),
-    mStickyImageDown(images->grid[3]),
+    mCloseImage(images ? images->grid[0] : nullptr),
+    mCloseImageHighlighted(images ? images->grid[1] : nullptr),
+    mStickyImageUp(images ? images->grid[2] : nullptr),
+    mStickyImageDown(images ? images->grid[3] : nullptr),
     mPadding(padding),
     mTitlePadding(titlePadding),
     mOptions(options)
diff --git a/src/gui/theme.cpp b/src/gui/theme.cpp
index 3881311a9..62cc2a03b 100644
--- a/src/gui/theme.cpp
+++ b/src/gui/theme.cpp
@@ -364,7 +364,8 @@ struct SkinHelper final
     Image *image;
     ResourceManager *resman;
 
-    bool loadList(const SkinParameter *const params, const size_t size)
+    bool loadList(const SkinParameter *const params,
+                  const size_t size) A_NONNULL(2)
     {
         for (size_t f = 0; f < size; f ++)
         {
diff --git a/src/gui/viewport.cpp b/src/gui/viewport.cpp
index 42c002d39..ff7946ed6 100644
--- a/src/gui/viewport.cpp
+++ b/src/gui/viewport.cpp
@@ -280,7 +280,7 @@ void Viewport::logic()
     BLOCK_START("Viewport::logic")
     // Make the player follow the mouse position
     // if the mouse is dragged elsewhere than in a window.
-    Gui::getMouseState(&mMouseX, &mMouseY);
+    Gui::getMouseState(mMouseX, mMouseY);
     BLOCK_END("Viewport::logic")
 }
 
@@ -288,7 +288,7 @@ void Viewport::followMouse()
 {
     if (!gui)
         return;
-    const MouseStateType button = Gui::getMouseState(&mMouseX, &mMouseY);
+    const MouseStateType button = Gui::getMouseState(mMouseX, mMouseY);
     // If the left button is dragged
     if (mPlayerFollowMouse && (button & SDL_BUTTON(1)))
     {
@@ -309,7 +309,7 @@ void Viewport::drawDebugPath(Graphics *const graphics)
     if (!localPlayer || !userPalette || !actorManager || !mMap || !gui)
         return;
 
-    Gui::getMouseState(&mMouseX, &mMouseY);
+    Gui::getMouseState(mMouseX, mMouseY);
 
     static Path debugPath;
     static Vector lastMouseDestination = Vector(0.0F, 0.0F);
diff --git a/src/gui/widgets/characterdisplay.cpp b/src/gui/widgets/characterdisplay.cpp
index b7af55018..2286b6c14 100644
--- a/src/gui/widgets/characterdisplay.cpp
+++ b/src/gui/widgets/characterdisplay.cpp
@@ -126,7 +126,7 @@ void CharacterDisplay::mouseMoved(MouseEvent &event A_UNUSED)
 
     int mouseX = 0;
     int mouseY = 0;
-    Gui::getMouseState(&mouseX, &mouseY);
+    Gui::getMouseState(mouseX, mouseY);
     const std::string &name = mName->getCaption();
     if (!name.empty())
     {
diff --git a/src/gui/windows/chatwindow.cpp b/src/gui/windows/chatwindow.cpp
index 72b547c2a..3f26cc4dc 100644
--- a/src/gui/windows/chatwindow.cpp
+++ b/src/gui/windows/chatwindow.cpp
@@ -2103,7 +2103,7 @@ void ChatWindow::updateVisibility()
     int mouseY = 0;
     int x = 0;
     int y = 0;
-    Gui::getMouseState(&mouseX, &mouseY);
+    Gui::getMouseState(mouseX, mouseY);
     getAbsolutePosition(x, y);
     if (mChatInput->isVisible())
     {