1 files changed, 194 insertions, 14 deletions

diff --git a/dw/textblock.cc b/dw/textblock.cc
index dec512d4..21aaa9dd 100644
--- a/dw/textblock.cc
+++ b/dw/textblock.cc
@@ -41,6 +41,103 @@ namespace dw {
 
 int Textblock::CLASS_ID = -1;
 
+Textblock::WordImgRenderer::WordImgRenderer (Textblock *textblock,
+                                             int wordNo)
+{
+   //printf ("new WordImgRenderer %p\n", this);
+
+   this->textblock = textblock;
+   this->wordNo = wordNo;
+   dataSet = false;
+}
+
+Textblock::WordImgRenderer::~WordImgRenderer ()
+{
+   //printf ("delete WordImgRenderer %p\n", this);
+}
+
+void Textblock::WordImgRenderer::setData (int xWordWidget, int lineNo)
+{
+   dataSet = true;
+   this->xWordWidget = xWordWidget;
+   this->lineNo = lineNo;
+}
+
+bool Textblock::WordImgRenderer::readyToDraw ()
+{
+   //print ();
+   //printf ("\n");
+
+   return dataSet && textblock->wasAllocated ()
+      && wordNo < textblock->words->size()
+      && lineNo < textblock->lines->size();
+}
+
+void Textblock::WordImgRenderer::getBgArea (int *x, int *y, int *width,
+                                            int *height)
+{
+   // TODO Subtract margin and border (padding box)?
+   Line *line = textblock->lines->getRef (lineNo);
+   *x = textblock->allocation.x + this->xWordWidget;
+   *y = textblock->lineYOffsetCanvas (line);
+   *width = textblock->words->getRef(wordNo)->size.width;
+   *height = line->boxAscent + line->boxDescent;
+}
+
+void Textblock::WordImgRenderer::getRefArea (int *xRef, int *yRef,
+                                             int *widthRef, int *heightRef)
+{
+   // See comment in Widget::drawBox about the reference area.
+   textblock->getPaddingArea (xRef, yRef, widthRef, heightRef);
+}
+
+core::style::Style *Textblock::WordImgRenderer::getStyle ()
+{
+   return textblock->words->getRef(wordNo)->style;
+}
+
+void Textblock::WordImgRenderer::draw (int x, int y, int width, int height)
+{
+   textblock->queueDrawArea (x - textblock->allocation.x,
+                             y - textblock->allocation.y, width, height);
+
+}
+
+void Textblock::WordImgRenderer::print ()
+{
+   printf ("%p: word #%d, ", this, wordNo);
+   if (wordNo < textblock->words->size())
+      textblock->printWordShort (textblock->words->getRef(wordNo));
+   else
+      printf ("<word %d does not exist>", wordNo);
+   printf (", data set: %s", dataSet ? "yes" : "no");
+}
+
+void Textblock::SpaceImgRenderer::getBgArea (int *x, int *y, int *width,
+                                             int *height)
+{
+   WordImgRenderer::getBgArea (x, y, width, height);
+   *x += *width;
+   *width = textblock->words->getRef(wordNo)->effSpace;
+}
+
+core::style::Style *Textblock::SpaceImgRenderer::getStyle ()
+{
+   return textblock->words->getRef(wordNo)->spaceStyle;
+}
+
+void Textblock::SpaceImgRenderer::print ()
+{
+   printf ("%p: word FOR SPACE #%d, ", this, wordNo);
+   if (wordNo < textblock->words->size())
+      textblock->printWordShort (textblock->words->getRef(wordNo));
+   else
+      printf ("<word %d does not exist>", wordNo);
+   printf (", data set: %s", dataSet ? "yes" : "no");
+}
+
+// ----------------------------------------------------------------------
+
 Textblock::DivChar Textblock::divChars[NUM_DIV_CHARS] = {
    // soft hyphen (U+00AD)
    { "\xc2\xad", true, false, true, PENALTY_HYPHEN, -1 },
@@ -188,8 +285,13 @@ Textblock::~Textblock ()
 
    for (int i = 0; i < words->size(); i++) {
       Word *word = words->getRef (i);
+
       if (word->content.type == core::Content::WIDGET)
          delete word->content.widget;
+
+      removeWordImgRenderer (i);
+      removeSpaceImgRenderer (i);
+
       word->style->unref ();
       word->spaceStyle->unref ();
    }
@@ -807,8 +909,8 @@ void Textblock::calcWidgetSize (core::Widget *widget, core::Requisition *size)
          size->width = core::style::absLengthVal (wstyle->width)
             + wstyle->boxDiffWidth ();
       else
-         size->width = (int) (core::style::perLengthVal (wstyle->width)
-                       * availWidth);
+         size->width =
+            core::style::multiplyWithPerLength (availWidth, wstyle->width);
 
       if (wstyle->height == core::style::LENGTH_AUTO) {
          size->ascent = requisition.ascent;
@@ -820,9 +922,10 @@ void Textblock::calcWidgetSize (core::Widget *widget, core::Requisition *size)
                         + wstyle->boxDiffHeight ();
          size->descent = 0;
       } else {
-         double len = core::style::perLengthVal (wstyle->height);
-         size->ascent = (int) (len * availAscent);
-         size->descent = (int) (len * availDescent);
+         size->ascent =
+            core::style::multiplyWithPerLength (wstyle->height, availAscent);
+         size->descent =
+            core::style::multiplyWithPerLength (wstyle->height, availDescent);
       }
    }
 
@@ -1353,14 +1456,77 @@ Textblock::Word *Textblock::addWord (int width, int ascent, int descent,
                                      short flags, core::style::Style *style)
 {
    words->increase ();
-   Word *word = words->getLastRef ();
-   fillWord (word, width, ascent, descent, flags, style);
-   return word;
+   int wordNo = words->size () - 1;
+   initWord (wordNo);
+   fillWord (wordNo, width, ascent, descent, flags, style);
+   return words->getRef (wordNo);;
+}
+
+/**
+ * Basic initialization, which is neccessary before fillWord.
+ */
+void Textblock::initWord (int wordNo)
+{
+   Word *word = words->getRef (wordNo);
+
+   word->style = word->spaceStyle = NULL;
+   word->wordImgRenderer = NULL;
+   word->spaceImgRenderer = NULL;
+}
+
+void Textblock::removeWordImgRenderer (int wordNo)
+{
+   Word *word = words->getRef (wordNo);
+
+   if (word->style && word->wordImgRenderer) {
+      word->style->backgroundImage->removeExternalImgRenderer
+         (word->wordImgRenderer);
+      delete word->wordImgRenderer;
+      word->wordImgRenderer = NULL;
+   }
 }
 
-void Textblock::fillWord (Word *word, int width, int ascent, int descent,
+void Textblock::setWordImgRenderer (int wordNo)
+{
+   Word *word = words->getRef (wordNo);
+
+   if (word->style->backgroundImage) {
+      word->wordImgRenderer = new WordImgRenderer (this, wordNo);
+      word->style->backgroundImage->putExternalImgRenderer
+         (word->wordImgRenderer);
+   } else
+      word->wordImgRenderer = NULL;
+}
+
+void Textblock::removeSpaceImgRenderer (int wordNo)
+{
+   Word *word = words->getRef (wordNo);
+
+   if (word->spaceStyle && word->spaceImgRenderer) {
+      word->spaceStyle->backgroundImage->removeExternalImgRenderer
+         (word->spaceImgRenderer);
+      delete word->spaceImgRenderer;
+      word->spaceImgRenderer = NULL;
+   }
+}
+
+void Textblock::setSpaceImgRenderer (int wordNo)
+{
+   Word *word = words->getRef (wordNo);
+
+   if (word->spaceStyle->backgroundImage) {
+      word->spaceImgRenderer = new SpaceImgRenderer (this, wordNo);
+      word->spaceStyle->backgroundImage->putExternalImgRenderer
+         (word->spaceImgRenderer);
+   } else
+      word->spaceImgRenderer = NULL;
+}
+
+void Textblock::fillWord (int wordNo, int width, int ascent, int descent,
                           short flags, core::style::Style *style)
 {
+   Word *word = words->getRef (wordNo);
+
    word->size.width = width;
    word->size.ascent = ascent;
    word->size.descent = descent;
@@ -1370,8 +1536,15 @@ void Textblock::fillWord (Word *word, int width, int ascent, int descent,
    word->content.space = false;
    word->flags = flags;
 
+   removeWordImgRenderer (wordNo);
+   removeSpaceImgRenderer (wordNo);
+
    word->style = style;
    word->spaceStyle = style;
+
+   setWordImgRenderer (wordNo);
+   setSpaceImgRenderer (wordNo);
+
    style->ref ();
    style->ref ();
 }
@@ -1473,9 +1646,9 @@ void Textblock::calcTextSize (const char *text, size_t len,
       if (core::style::isAbsLength (style->lineHeight))
          height = core::style::absLengthVal(style->lineHeight);
       else
-         height = lout::misc::roundInt (
-                     core::style::perLengthVal(style->lineHeight) *
-                     style->font->size);
+         height =
+            core::style::multiplyWithPerLengthRounded (style->font->size,
+                                                       style->lineHeight);
       leading = height - style->font->size;
 
       size->ascent += leading / 2;
@@ -1849,7 +2022,7 @@ void Textblock::addSpace (core::style::Style *style)
 {
    int wordIndex = words->size () - 1;
    if (wordIndex >= 0) {
-      fillSpace (words->getRef(wordIndex), style);
+      fillSpace (wordIndex, style);
       accumulateWordData (wordIndex);
       correctLastWordExtremes ();
    }
@@ -1871,7 +2044,7 @@ void Textblock::addBreakOption (core::style::Style *style, bool forceBreak)
    }
 }
 
-void Textblock::fillSpace (Word *word, core::style::Style *style)
+void Textblock::fillSpace (int wordNo, core::style::Style *style)
 {
    // Old comment:
    // 
@@ -1887,6 +2060,8 @@ void Textblock::fillSpace (Word *word, core::style::Style *style)
    //
    // TODO: Re-evaluate again.
 
+   Word *word = words->getRef (wordNo);
+
    // TODO: This line does not work: addBreakOption (word, style);
 
    // Do not override a previously set break penalty.
@@ -1904,9 +2079,14 @@ void Textblock::fillSpace (Word *word, core::style::Style *style)
       //DBG_OBJ_ARRSET_NUM (this, "words.%d.content.space", wordIndex,
       //                    word->content.space);
 
+
+      removeSpaceImgRenderer (wordNo);
+
       word->spaceStyle->unref ();
       word->spaceStyle = style;
       style->ref ();
+      
+      setSpaceImgRenderer (wordNo);
    }
 }