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* Added more comments to the code.

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* Cleanup ParseStates in case the input didn't have
   all closing tags.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38824 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stephan Aßmus 2010-09-26 20:32:38 +00:00
parent 676c1e9694
commit ed74106bcb
1 changed files with 13 additions and 2 deletions
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15
src/apps/mediaplayer/interface/SubtitleBitmap.cpp
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@ -163,9 +163,11 @@ find_next_tag(const BString& string, int32& tagPos, int32& tagLength,
tagPos = string.Length();
tagLength = 0;
// Find the next tag closest from the current position
// This way of doing it allows broken input with overlapping tags even.
BString tag;
for (int32 i = 0; i < kTagCount; i++) {
int32 nextTag = string.FindFirst(kTags[i], current);
int32 nextTag = string.IFindFirst(kTags[i], current);
if (nextTag >= current && nextTag < tagPos) {
tagPos = nextTag;
tag = kTags[i];
@ -173,6 +175,7 @@ find_next_tag(const BString& string, int32& tagPos, int32& tagLength,
}
if (tag != "") {
// Tag found, ParseState will change.
tagLength = tag.Length();
if (tag == "<b>") {
state = new ParseState(state);
@ -197,7 +200,7 @@ find_next_tag(const BString& string, int32& tagPos, int32& tagLength,
}
} else if (tag == "</b>" || tag == "</i>" || tag == "</u>"
|| tag == "</font>") {
// Pop state
// Closing tag, pop state
if (state->previous != NULL) {
ParseState* oldState = state;
state = state->previous;
@ -245,6 +248,7 @@ parse_text(const BString& string, BTextView* textView, const BFont& font,
int32 tagLength;
bool stateChanged = find_next_tag(string, nextPos, tagLength, state);
if (nextPos > pos) {
// Insert text between last and next tags
BString subString;
string.CopyInto(subString, pos, nextPos - pos);
textView->Insert(subString.String());
@ -253,6 +257,13 @@ parse_text(const BString& string, BTextView* textView, const BFont& font,
if (stateChanged)
apply_state(textView, state, font, changeColor);
}
// Cleanup states in case the input text had non-matching tags.
while (state->previous != NULL) {
ParseState* oldState = state->previous;
state = state->previous;
delete oldState;
}
}