Use local TextChunk in windows for draw caption text.

3 files changed, 40 insertions, 12 deletions

diff --git a/src/gui/widgets/window.cpp b/src/gui/widgets/window.cpp
index f45e93362..e781ec548 100644
--- a/src/gui/widgets/window.cpp
+++ b/src/gui/widgets/window.cpp
@@ -125,6 +125,7 @@ Window::Window(const std::string &caption,
     mCloseRect(),
     mStickyRect(),
     mGripRect(),
+    mTextChunk(),
     mWindowName("window"),
     mMinWinWidth(100),
     mMinWinHeight(40),
@@ -151,7 +152,8 @@ Window::Window(const std::string &caption,
     mSticky(false),
     mStickyButtonLock(false),
     mPlayVisibleSound(false),
-    mInit(false)
+    mInit(false),
+    mTextChanged(true)
 {
     logger->log("Window::Window(\"%s\")", caption.c_str());
 
@@ -359,11 +361,20 @@ void Window::draw(Graphics *graphics)
                 x = mCaptionOffsetX - mCaptionFont->getWidth(mCaption);
                 break;
         }
-        mCaptionFont->drawString(graphics,
-            mForegroundColor,
-            mForegroundColor2,
-            mCaption,
-            x, mCaptionOffsetY);
+        if (mTextChanged)
+        {
+            mTextChunk.textFont = mCaptionFont;
+            mTextChunk.deleteImage();
+            mTextChunk.text = mCaption;
+            mTextChunk.color = mForegroundColor;
+            mTextChunk.color2 = mForegroundColor2;
+            mCaptionFont->generate(mTextChunk);
+            mTextChanged = false;
+        }
+
+        const Image *const image = mTextChunk.img;
+        if (image)
+            graphics->drawImage(image, x, mCaptionOffsetY);
     }
 
     if (update)
@@ -427,11 +438,20 @@ void Window::safeDraw(Graphics *graphics)
                 x = mCaptionOffsetX - mCaptionFont->getWidth(mCaption);
                 break;
         }
-        mCaptionFont->drawString(graphics,
-            mForegroundColor,
-            mForegroundColor2,
-            mCaption,
-            x, mCaptionOffsetY);
+        if (mTextChanged)
+        {
+            mTextChunk.textFont = mCaptionFont;
+            mTextChunk.deleteImage();
+            mTextChunk.text = mCaption;
+            mTextChunk.color = mForegroundColor;
+            mTextChunk.color2 = mForegroundColor2;
+            mCaptionFont->generate(mTextChunk);
+            mTextChanged = false;
+        }
+
+        const Image *const image = mTextChunk.img;
+        if (image)
+            graphics->drawImage(image, x, mCaptionOffsetY);
     }
 
     safeDrawChildren(graphics);
@@ -668,6 +688,9 @@ void Window::widgetMoved(const Event& event A_UNUSED)
 
 void Window::widgetHidden(const Event &event A_UNUSED)
 {
+    mTextChanged = true;
+    mTextChunk.deleteImage();
+
     if (gui)
         gui->setCursorType(Cursor::CURSOR_POINTER);
 
diff --git a/src/gui/widgets/window.h b/src/gui/widgets/window.h
index 2c174aeae..102aedf73 100644
--- a/src/gui/widgets/window.h
+++ b/src/gui/widgets/window.h
@@ -71,6 +71,8 @@
 #include "listeners/mouselistener.h"
 #include "listeners/widgetlistener.h"
 
+#include "gui/fonts/textchunk.h"
+
 #include "gui/widgets/basiccontainer2.h"
 
 #include "resources/imagerect.h"
@@ -511,7 +513,7 @@ class Window notfinal : public BasicContainer2,
          * @see getCaption
          */
         void setCaption(const std::string& caption)
-        { mCaption = caption; }
+        { mCaption = caption; mTextChanged = true; }
 
         /**
          * Gets the caption of the window.
@@ -669,6 +671,7 @@ class Window notfinal : public BasicContainer2,
         Rect mCloseRect;    /**< Close button rectangle */
         Rect mStickyRect;   /**< Sticky button rectangle */
         Rect mGripRect;     /**< Resize grip rectangle */
+        TextChunk mTextChunk;
         std::string mWindowName;      /**< Name of the window */
         int mMinWinWidth;             /**< Minimum window width */
         int mMinWinHeight;            /**< Minimum window height */
@@ -707,6 +710,7 @@ class Window notfinal : public BasicContainer2,
         bool mStickyButtonLock;       /**< Window locked if sticky enabled*/
         bool mPlayVisibleSound;
         bool mInit;
+        bool mTextChanged;
 };
 
 #endif  // GUI_WIDGETS_WINDOW_H
diff --git a/src/gui/windows/shortcutwindow.cpp b/src/gui/windows/shortcutwindow.cpp
index 85fb2e2ff..baf8b68d7 100644
--- a/src/gui/windows/shortcutwindow.cpp
+++ b/src/gui/windows/shortcutwindow.cpp
@@ -179,6 +179,7 @@ int ShortcutWindow::getTabIndex() const
 
 void ShortcutWindow::widgetHidden(const Event &event)
 {
+    Window::widgetHidden(event);
     if (mItems)
         mItems->widgetHidden(event);
     if (mTabs)