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.

1 files changed, 30 insertions, 1 deletions

diff --git a/src/gui/fonts/textchunk.cpp b/src/gui/fonts/textchunk.cpp
index b0933a3e0..a0c8a39dc 100644
--- a/src/gui/fonts/textchunk.cpp
+++ b/src/gui/fonts/textchunk.cpp
@@ -25,6 +25,8 @@
 
 #include "sdlshared.h"
 
+#include "gui/fonts/font.h"
+
 #include "resources/image.h"
 #include "resources/surfaceimagehelper.h"
 
@@ -45,10 +47,24 @@ char *strBuf = nullptr;
 int textChunkCnt = 0;
 #endif
 
+TextChunk::TextChunk() :
+    img(nullptr),
+    textFont(nullptr),
+    text(),
+    color(),
+    color2(),
+    prev(nullptr),
+    next(nullptr)
+{
+#ifdef UNITTESTS
+    textChunkCnt ++;
+#endif
+}
+
 TextChunk::TextChunk(const std::string &text0,
                      const Color &color0,
                      const Color &color1,
-                     const Font *const font) :
+                     Font *const font) :
     img(nullptr),
     textFont(font),
     text(text0),
@@ -167,3 +183,16 @@ void TextChunk::generate(TTF_Font *const font, const float alpha)
 
     BLOCK_END("TextChunk::generate")
 }
+
+void TextChunk::deleteImage()
+{
+    if (textFont)
+    {
+        textFont->insertChunk(this);
+        img = nullptr;
+    }
+    else
+    {
+        delete2(img);
+    }
+}