1 files changed, 52 insertions, 0 deletions
diff --git a/src/main-view/FieldContentCodec.cpp b/src/main-view/FieldContentCodec.cpp
new file mode 100644
index 0000000..ac9e6c5
--- /dev/null
+++ b/src/main-view/FieldContentCodec.cpp
@@ -0,0 +1,52 @@
+#include "FieldContentCodec.h"
+
+#include "FieldContentPainter.h"
+
+FieldContentCodec::FieldContentCodec(FieldContentPainter* painter):
+    painter(painter),
+    imageRx("<img\\s+src=\"([^\"]+)\"\\s*/?>")
+{
+    initLoopParams();
+}
+
+void FieldContentCodec::initLoopParams()
+{
+    textPos = 0;
+    prevTextPos = 0;
+}
+
+void FieldContentCodec::parse(const QString& text)
+{
+    painter->startDrawing();
+    initLoopParams();
+    this->text = text;
+
+    while(findNextImage() >= 0)
+        {
+        drawTextChunk(textPos - prevTextPos);
+        drawImage();
+        textPos += imageRx.matchedLength();
+        prevTextPos = textPos;
+        }
+    drawTextChunk(-1);
+    painter->endDrawing();
+}
+
+int FieldContentCodec::findNextImage()
+{
+    textPos = imageRx.indexIn(text, textPos);
+    return textPos;
+}
+
+void FieldContentCodec::drawTextChunk(int len)
+{
+    painter->drawText(text.mid(prevTextPos, len));
+}
+
+void FieldContentCodec::drawImage()
+{
+    QString imagePath = imageRx.cap(1);
+    if(!QFileInfo(imagePath).exists())
+        imagePath = ":/images/broken-image.png";
+    painter->drawImage(imagePath);
+}