From e224a077737739a895fe533c9cce93783621d8e9 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Tue, 19 May 2015 14:49:19 +0300
Subject: Add fast way for draw not changed text strings.

TextChunk with colors and image stored inside draw object.
If string or color changed old string image moved to cache.
New string image generated or moved from cache.

Use new way in drawing string in label.
---
 src/gui/widgets/label.cpp | 38 +++++++++++++++++++++++++++++++++++---
 1 file changed, 35 insertions(+), 3 deletions(-)

(limited to 'src/gui/widgets/label.cpp')

diff --git a/src/gui/widgets/label.cpp b/src/gui/widgets/label.cpp
index 8b074a0b1..65e7f86d0 100644
--- a/src/gui/widgets/label.cpp
+++ b/src/gui/widgets/label.cpp
@@ -78,8 +78,10 @@ Label::Label(const Widget2 *const widget) :
     Widget(widget),
     ToolTipListener(),
     mCaption(),
+    mTextChunk(),
     mAlignment(Graphics::LEFT),
-    mPadding(0)
+    mPadding(0),
+    mTextChanged(true)
 {
     init();
 }
@@ -89,8 +91,10 @@ Label::Label(const Widget2 *const widget,
     Widget(widget),
     ToolTipListener(),
     mCaption(caption),
+    mTextChunk(),
     mAlignment(Graphics::LEFT),
-    mPadding(0)
+    mPadding(0),
+    mTextChanged(true)
 {
     const Font *const font = getFont();
     if (font)
@@ -113,6 +117,7 @@ Label::~Label()
             theme->unload(mSkin);
     }
     removeMouseListener(this);
+    mTextChunk.deleteImage();
 }
 
 void Label::init()
@@ -160,7 +165,21 @@ void Label::draw(Graphics* graphics)
     }
 
     graphics->setColorAll(mForegroundColor, mForegroundColor2);
-    font->drawString(graphics, mCaption, textX, textY);
+    if (mTextChanged)
+    {
+        mTextChunk.textFont = font;
+        mTextChunk.deleteImage();
+        mTextChunk.text = mCaption;
+        mTextChunk.color = mForegroundColor;
+        mTextChunk.color2 = mForegroundColor2;
+        font->generate(mTextChunk);
+        mTextChanged = false;
+    }
+
+    const Image *const image = mTextChunk.img;
+    if (image)
+        graphics->drawImage(image, textX, textY);
+//    font->drawString(graphics, mCaption, textX, textY);
     BLOCK_END("Label::draw")
 }
 
@@ -174,6 +193,9 @@ void Label::adjustSize()
 
 void Label::setForegroundColor(const Color &color)
 {
+    if (mForegroundColor != color || mForegroundColor2 != color)
+        mTextChanged = true;
+//    logger->log("Label::setForegroundColor: " + mCaption);
     mForegroundColor = color;
     mForegroundColor2 = color;
 }
@@ -181,6 +203,9 @@ void Label::setForegroundColor(const Color &color)
 void Label::setForegroundColorAll(const Color &color1,
                                   const Color &color2)
 {
+    if (mForegroundColor != color1 || mForegroundColor2 != color2)
+        mTextChanged = true;
+//    logger->log("Label::setForegroundColorAll: " + mCaption);
     mForegroundColor = color1;
     mForegroundColor2 = color2;
 }
@@ -221,3 +246,10 @@ void Label::resizeTo(const int maxSize, const int minSize)
         setWidth(sz);
     }
 }
+
+void Label::setCaption(const std::string& caption)
+{
+    if (caption != mCaption)
+        mTextChanged = true;
+    mCaption = caption;
+}
-- 
cgit v1.2.3-70-g09d2