fix some missing checks.

3 files changed, 61 insertions, 32 deletions

diff --git a/src/gui/theme.cpp b/src/gui/theme.cpp
index 97afec6d3..6d052b2b8 100644
--- a/src/gui/theme.cpp
+++ b/src/gui/theme.cpp
@@ -89,7 +89,7 @@ Skin::~Skin()
 {
     for (int i = 0; i < 9; i++)
     {
-        if (mBorder->grid[i])
+        if (mBorder && mBorder->grid[i])
         {
             mBorder->grid[i]->decRef();
             mBorder->grid[i] = nullptr;
@@ -132,10 +132,13 @@ void Skin::updateAlpha(const float minimumOpacityAllowed)
         std::max(static_cast<double>(minimumOpacityAllowed),
         static_cast<double>(client->getGuiAlpha())));
 
-    for (int i = 0; i < 9; i++)
+    if (mBorder)
     {
-        if (mBorder->grid[i])
-            mBorder->grid[i]->setAlpha(alpha);
+        for (int i = 0; i < 9; i++)
+        {
+            if (mBorder->grid[i])
+                mBorder->grid[i]->setAlpha(alpha);
+        }
     }
 
     if (mCloseImage)
@@ -150,7 +153,7 @@ void Skin::updateAlpha(const float minimumOpacityAllowed)
 
 int Skin::getMinWidth() const
 {
-    if (!mBorder->grid[ImageRect::UPPER_LEFT]
+    if (!mBorder || !mBorder->grid[ImageRect::UPPER_LEFT]
         || !mBorder->grid[ImageRect::UPPER_RIGHT])
     {
         return 1;
@@ -162,7 +165,7 @@ int Skin::getMinWidth() const
 
 int Skin::getMinHeight() const
 {
-    if (!mBorder->grid[ImageRect::UPPER_LEFT]
+    if (!mBorder || !mBorder->grid[ImageRect::UPPER_LEFT]
         || !mBorder->grid[ImageRect::LOWER_LEFT])
     {
         return 1;
diff --git a/src/gui/widgets/progressbar.cpp b/src/gui/widgets/progressbar.cpp
index 33e27a0d9..dc1e02ac5 100644
--- a/src/gui/widgets/progressbar.cpp
+++ b/src/gui/widgets/progressbar.cpp
@@ -71,8 +71,11 @@ ProgressBar::ProgressBar(const Widget2 *const widget, float progress,
     if (theme)
     {
         mSkin = theme->load("progressbar.xml", "");
-        setPadding(mSkin->getPadding());
-        mFillPadding = mSkin->getOption("fillPadding");
+        if (mSkin)
+        {
+            setPadding(mSkin->getPadding());
+            mFillPadding = mSkin->getOption("fillPadding");
+        }
         setHeight(2 * mPadding + getFont()->getHeight() + 2);
     }
 
diff --git a/src/gui/widgets/window.cpp b/src/gui/widgets/window.cpp
index 38fd315fb..fccf8bbcd 100644
--- a/src/gui/widgets/window.cpp
+++ b/src/gui/widgets/window.cpp
@@ -458,8 +458,17 @@ void Window::setResizable(const bool r)
     if (r)
     {
         mGrip = Theme::getImageFromThemeXml("resize.xml", "");
-        mGripRect.x = mDimension.width - mGrip->getWidth() - mGripPadding;
-        mGripRect.y = mDimension.height - mGrip->getHeight() - mGripPadding;
+        if (mGrip)
+        {
+            mGripRect.x = mDimension.width - mGrip->getWidth() - mGripPadding;
+            mGripRect.y = mDimension.height - mGrip->getHeight()
+                - mGripPadding;
+        }
+        else
+        {
+            mGripRect.x = 0;
+            mGripRect.y = 0;
+        }
     }
     else
     {
@@ -483,35 +492,49 @@ void Window::widgetResized(const gcn::Event &event A_UNUSED)
         int h = area.height;
         mLayout->reflow(w, h);
     }
-    const bool showClose = mCloseButton && mSkin->getCloseImage(false);
-    const int closePadding = getOption("closePadding");
-    if (showClose)
-    {
-        const Image *const button = mSkin->getCloseImage(false);
-        const int buttonWidth = button->getWidth();
-        mCloseRect.x = mDimension.width - buttonWidth - closePadding;
-        mCloseRect.y = closePadding;
-        mCloseRect.width = buttonWidth;
-        mCloseRect.height = button->getHeight();
-    }
-    if (mStickyButton)
+    if (mSkin)
     {
-        const Image *const button = mSkin->getStickyImage(mSticky);
-        if (button)
+        const bool showClose = mCloseButton && mSkin->getCloseImage(false);
+        const int closePadding = getOption("closePadding");
+        if (showClose)
         {
+            const Image *const button = mSkin->getCloseImage(false);
             const int buttonWidth = button->getWidth();
-            int x = mDimension.width - buttonWidth
-                - getOption("stickySpacing") - closePadding;
+            mCloseRect.x = mDimension.width - buttonWidth - closePadding;
+            mCloseRect.y = closePadding;
+            mCloseRect.width = buttonWidth;
+            mCloseRect.height = button->getHeight();
+        }
+        if (mStickyButton)
+        {
+            const Image *const button = mSkin->getStickyImage(mSticky);
+            if (button)
+            {
+                const int buttonWidth = button->getWidth();
+                int x = mDimension.width - buttonWidth
+                    - getOption("stickySpacing") - closePadding;
 
-            if (showClose)
-                x -= mSkin->getCloseImage(false)->getWidth();
+                if (showClose)
+                    x -= mSkin->getCloseImage(false)->getWidth();
 
-            mStickyRect.x = x;
-            mStickyRect.y = getOption("stickyPadding");
-            mStickyRect.width = buttonWidth;
-            mStickyRect.height = button->getHeight();
+                mStickyRect.x = x;
+                mStickyRect.y = getOption("stickyPadding");
+                mStickyRect.width = buttonWidth;
+                mStickyRect.height = button->getHeight();
+            }
         }
     }
+    else
+    {
+        mCloseRect.x = 0;
+        mCloseRect.y = 0;
+        mCloseRect.width = 0;
+        mCloseRect.height = 0;
+        mStickyRect.x = 0;
+        mStickyRect.y = 0;
+        mStickyRect.width = 0;
+        mStickyRect.height = 0;
+    }
 
     mRedraw = true;
 }