Add theming to labels.

New theme file: label.xml
Parameters: padding

3 files changed, 81 insertions, 11 deletions

diff --git a/src/gui/widgets/desktop.h b/src/gui/widgets/desktop.h
index 0a9759835..2e5eeea24 100644
--- a/src/gui/widgets/desktop.h
+++ b/src/gui/widgets/desktop.h
@@ -27,11 +27,7 @@
 #include <guichan/widgetlistener.hpp>
 
 class Image;
-
-namespace gcn
-{
-    class Label;
-}
+class Label;
 
 /**
  * Desktop widget, for drawing a background image and color.
@@ -68,7 +64,7 @@ class Desktop final : public Container, private gcn::WidgetListener
         void setBestFittingWallpaper();
 
         Image *mWallpaper;
-        gcn::Label *mVersionLabel;
+        Label *mVersionLabel;
         gcn::Color mBackgroundColor;
         gcn::Color mBackgroundGrayColor;
 };
diff --git a/src/gui/widgets/label.cpp b/src/gui/widgets/label.cpp
index e6f603fb2..188da1bf4 100644
--- a/src/gui/widgets/label.cpp
+++ b/src/gui/widgets/label.cpp
@@ -23,21 +23,80 @@
 
 #include "gui/theme.h"
 
+#include <guichan/font.hpp>
+
 #include "debug.h"
 
+Skin *Label::mSkin = nullptr;
+int Label::mInstances = 0;
+
 Label::Label() :
-    gcn::Label()
+    gcn::Label(),
+    mPadding(0)
 {
-    mForegroundColor = Theme::getThemeColor(Theme::LABEL);
+    init();
 }
 
 Label::Label(const std::string &caption) :
-    gcn::Label(caption)
+    gcn::Label(caption),
+    mPadding(0)
+{
+    init();
+}
+
+Label::~Label()
+{
+    mInstances --;
+    if (mInstances == 0 && Theme::instance())
+    {
+        Theme::instance()->unload(mSkin);
+    }
+}
+
+void Label::init()
 {
     mForegroundColor = Theme::getThemeColor(Theme::LABEL);
+    if (mInstances == 0)
+    {
+        if (Theme::instance())
+            mSkin = Theme::instance()->load("label.xml", "");
+        mInstances ++;
+    }
+    if (mSkin)
+        mPadding = mSkin->getPadding();
+    else
+        mPadding = 0;
+}
+
+void Label::draw(gcn::Graphics* graphics)
+{
+    int textX;
+    const int textY = getHeight() / 2 - getFont()->getHeight() / 2;
+
+    switch (getAlignment())
+    {
+        case Graphics::LEFT:
+        default:
+            textX = mPadding;
+            break;
+        case Graphics::CENTER:
+            textX = getWidth() / 2;
+            break;
+        case Graphics::RIGHT:
+            if (getWidth() > mPadding)
+                textX = getWidth() - mPadding;
+            else
+                textX = 0;
+            break;
+    }
+
+    graphics->setFont(getFont());
+    graphics->setColor(mForegroundColor);
+    graphics->drawText(getCaption(), textX, textY, getAlignment());
 }
 
-void Label::draw(gcn::Graphics *graphics)
+void Label::adjustSize()
 {
-    gcn::Label::draw(graphics);
+    setWidth(getFont()->getWidth(getCaption()) + 2 * mPadding);
+    setHeight(getFont()->getHeight() + 2 * mPadding);
 }
diff --git a/src/gui/widgets/label.h b/src/gui/widgets/label.h
index 046f2ca00..40632109d 100644
--- a/src/gui/widgets/label.h
+++ b/src/gui/widgets/label.h
@@ -24,6 +24,8 @@
 
 #include <guichan/widgets/label.hpp>
 
+class Skin;
+
 /**
  * Label widget. Same as the Guichan label but modified to use the palette
  * system.
@@ -46,10 +48,23 @@ class Label final : public gcn::Label
 
         A_DELETE_COPY(Label);
 
+        ~Label();
+
+        void init();
+
         /**
          * Draws the label.
          */
         void draw(gcn::Graphics *graphics) override;
+
+        void adjustSize();
+
+        static Skin *mSkin;
+
+        static int mInstances;
+
+    private:
+        int mPadding;
 };
 
 #endif