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Diffstat (limited to 'indra/llui/lltextbase.cpp')
-rw-r--r--indra/llui/lltextbase.cpp108
1 files changed, 79 insertions, 29 deletions
diff --git a/indra/llui/lltextbase.cpp b/indra/llui/lltextbase.cpp
index 49537ef78f..fd7bb699f8 100644
--- a/indra/llui/lltextbase.cpp
+++ b/indra/llui/lltextbase.cpp
@@ -157,6 +157,7 @@ LLTextBase::Params::Params()
read_only("read_only", false),
v_pad("v_pad", 0),
h_pad("h_pad", 0),
+ clip("clip", true),
clip_partial("clip_partial", true),
line_spacing("line_spacing"),
max_text_length("max_length", 255),
@@ -199,6 +200,7 @@ LLTextBase::LLTextBase(const LLTextBase::Params &p)
mVAlign(p.font_valign),
mLineSpacingMult(p.line_spacing.multiple),
mLineSpacingPixels(p.line_spacing.pixels),
+ mClip(p.clip),
mClipPartial(p.clip_partial && !p.allow_scroll),
mTrackEnd( p.track_end ),
mScrollIndex(-1),
@@ -334,7 +336,7 @@ void LLTextBase::drawSelectionBackground()
// binary search for line that starts before top of visible buffer
line_list_t::const_iterator line_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mTop, compare_bottom());
- line_list_t::const_iterator end_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mBottom, compare_top());
+ line_list_t::const_iterator end_iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mBottom, compare_top());
bool done = false;
@@ -512,7 +514,6 @@ void LLTextBase::drawText()
selection_right = llmax( mSelectionStart, mSelectionEnd );
}
- LLRect scrolled_view_rect = getVisibleDocumentRect();
std::pair<S32, S32> line_range = getVisibleLines(mClipPartial);
S32 first_line = line_range.first;
S32 last_line = line_range.second;
@@ -545,10 +546,10 @@ void LLTextBase::drawText()
line_end = next_start;
}
- LLRect text_rect(line.mRect.mLeft + mVisibleTextRect.mLeft - scrolled_view_rect.mLeft,
- line.mRect.mTop - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom,
- llmin(mDocumentView->getRect().getWidth(), line.mRect.mRight) - scrolled_view_rect.mLeft,
- line.mRect.mBottom - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom);
+ LLRect text_rect(line.mRect);
+ text_rect.mRight = llmin(mDocumentView->getRect().getWidth(), text_rect.mRight); // clamp right edge to document extents
+ text_rect.translate(mVisibleTextRect.mLeft, mVisibleTextRect.mBottom); // translate into display region of text widget
+ text_rect.translate(mDocumentView->getRect().mLeft, mDocumentView->getRect().mBottom); // adjust by scroll position
// draw a single line of text
S32 seg_start = line_start;
@@ -993,14 +994,28 @@ void LLTextBase::draw()
updateScrollFromCursor();
}
- LLRect doc_rect;
+ LLRect text_rect;
if (mScroller)
{
- mScroller->localRectToOtherView(mScroller->getContentWindowRect(), &doc_rect, this);
+ mScroller->localRectToOtherView(mScroller->getContentWindowRect(), &text_rect, this);
}
else
{
- doc_rect = getLocalRect();
+ LLRect visible_lines_rect;
+ std::pair<S32, S32> line_range = getVisibleLines(mClipPartial);
+ for (S32 i = line_range.first; i < line_range.second; i++)
+ {
+ if (visible_lines_rect.isEmpty())
+ {
+ visible_lines_rect = mLineInfoList[i].mRect;
+ }
+ else
+ {
+ visible_lines_rect.unionWith(mLineInfoList[i].mRect);
+ }
+ }
+ text_rect = visible_lines_rect;
+ text_rect.translate(mDocumentView->getRect().mLeft, mDocumentView->getRect().mBottom);
}
if (mBGVisible)
@@ -1010,28 +1025,37 @@ void LLTextBase::draw()
LLRect bg_rect = mVisibleTextRect;
if (mScroller)
{
- bg_rect.intersectWith(doc_rect);
+ bg_rect.intersectWith(text_rect);
}
LLColor4 bg_color = mReadOnly
? mReadOnlyBgColor.get()
: hasFocus()
? mFocusBgColor.get()
: mWriteableBgColor.get();
- gl_rect_2d(doc_rect, bg_color % alpha, TRUE);
+ gl_rect_2d(text_rect, bg_color % alpha, TRUE);
}
- // draw document view
- LLUICtrl::draw();
-
- {
- // only clip if we support scrolling...
- // since convention is that text boxes never vertically truncate their contents
- // regardless of rect bounds
- LLLocalClipRect clip(doc_rect, mScroller != NULL);
+ bool should_clip = mClip || mScroller != NULL;
+ { LLLocalClipRect clip(text_rect, should_clip);
+
+ // draw document view
+ if (mScroller)
+ {
+ drawChild(mScroller);
+ }
+ else
+ {
+ drawChild(mDocumentView);
+ }
+
drawSelectionBackground();
drawText();
drawCursor();
}
+
+ mDocumentView->setVisible(FALSE);
+ LLUICtrl::draw();
+ mDocumentView->setVisible(TRUE);
}
@@ -1415,7 +1439,7 @@ S32 LLTextBase::getFirstVisibleLine() const
return iter - mLineInfoList.begin();
}
-std::pair<S32, S32> LLTextBase::getVisibleLines(bool fully_visible)
+std::pair<S32, S32> LLTextBase::getVisibleLines(bool require_fully_visible)
{
LLRect visible_region = getVisibleDocumentRect();
line_list_t::const_iterator first_iter;
@@ -1424,14 +1448,14 @@ std::pair<S32, S32> LLTextBase::getVisibleLines(bool fully_visible)
// make sure we have an up-to-date mLineInfoList
reflow();
- if (fully_visible)
+ if (require_fully_visible)
{
first_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_top());
- last_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mBottom, compare_bottom());
+ last_iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mBottom, compare_bottom());
}
else
{
- first_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_bottom());
+ first_iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_bottom());
last_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mBottom, compare_top());
}
return std::pair<S32, S32>(first_iter - mLineInfoList.begin(), last_iter - mLineInfoList.begin());
@@ -1998,11 +2022,10 @@ S32 LLTextBase::getDocIndexFromLocalCoord( S32 local_x, S32 local_y, BOOL round,
pos = segment_line_start + offset;
break;
}
- else if (hit_past_end_of_line && segmentp->getEnd() > line_iter->mDocIndexEnd - 1)
+ else if (hit_past_end_of_line && segmentp->getEnd() >= line_iter->mDocIndexEnd)
{
// segment wraps to next line, so just set doc pos to the end of the line
- // segment wraps to next line, so just set doc pos to start of next line (represented by mDocIndexEnd)
- pos = llmin(getLength(), line_iter->mDocIndexEnd);
+ pos = llclamp(line_iter->mDocIndexEnd - 1, 0, getLength());
break;
}
start_x += text_width;
@@ -2405,14 +2428,41 @@ LLRect LLTextBase::getVisibleDocumentRect() const
{
return mScroller->getVisibleContentRect();
}
- else
+ else if (mClip)
{
- // entire document rect is visible when not scrolling
+ LLRect visible_text_rect = getVisibleTextRect();
+ LLRect doc_rect = mDocumentView->getRect();
+ visible_text_rect.translate(-doc_rect.mLeft, -doc_rect.mBottom);
+
+ // reject partially visible lines
+ LLRect visible_lines_rect;
+ for (line_list_t::const_iterator it = mLineInfoList.begin(), end_it = mLineInfoList.end();
+ it != end_it;
+ ++it)
+ {
+ bool line_visible = mClipPartial ? visible_text_rect.contains(it->mRect) : visible_text_rect.overlaps(it->mRect);
+ if (line_visible)
+ {
+ if (visible_lines_rect.isEmpty())
+ {
+ visible_lines_rect = it->mRect;
+ }
+ else
+ {
+ visible_lines_rect.unionWith(it->mRect);
+ }
+ }
+ }
+ return visible_lines_rect;
+ }
+ else
+ { // entire document rect is visible
// but offset according to height of widget
+
LLRect doc_rect = mDocumentView->getLocalRect();
doc_rect.mLeft -= mDocumentView->getRect().mLeft;
// adjust for height of text above widget baseline
- doc_rect.mBottom = doc_rect.getHeight() - mVisibleTextRect.getHeight();
+ doc_rect.mBottom = llmin(0, doc_rect.getHeight() - mVisibleTextRect.getHeight());
return doc_rect;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 19:16:30 +0000