void LLHUDNameTag::addLabel(const std::string& label_utf8)
{
LLWString wstr = utf8string_to_wstring(label_utf8);
if (!wstr.empty())
{
LLWString seps(utf8str_to_wstring("\r\n"));
LLWString empty;
typedef boost::tokenizer<boost::char_separator<llwchar>, LLWString::const_iterator, LLWString > tokenizer;
boost::char_separator<llwchar> sep(seps.c_str(), empty.c_str(), boost::keep_empty_tokens);
tokenizer tokens(wstr, sep);
tokenizer::iterator iter = tokens.begin();
while (iter != tokens.end())
{
U32 line_length = 0;
do
{
S32 segment_length = mFontp->maxDrawableChars(iter->substr(line_length).c_str(),
HUD_TEXT_MAX_WIDTH, wstr.length(), LLFontGL::WORD_BOUNDARY_IF_POSSIBLE);
LLHUDTextSegment segment(iter->substr(line_length, segment_length), LLFontGL::NORMAL, mColor, mFontp);
mLabelSegments.push_back(segment);
line_length += segment_length;
}
while (line_length != iter->size());
++iter;
}
}
}
void LLConsole::addQueuedLines()
{
for (line_queue_t::iterator iter = mLineQueue.begin();
iter != mLineQueue.end(); ++iter)
{
LineInfo& line_info = *iter;
LLWString wline = line_info.wline;
//F32 size = line_info.size;
LLColor4 color = line_info.color;
if (!wline.empty() && mFont != NULL)
{
// Wrap lines that are longer than the view is wide.
S32 offset = 0;
while( offset < (S32)wline.length() )
{
S32 skip_chars; // skip '\n'
// Figure out if a word-wrapped line fits here.
LLWString::size_type line_end = wline.find_first_of(llwchar('\n'), offset);
if (line_end != LLWString::npos)
{
skip_chars = 1; // skip '\n'
}
else
{
line_end = wline.size();
skip_chars = 0;
}
U32 drawable = mFont->maxDrawableChars(wline.c_str()+offset, (F32)mRect.getWidth(), line_end-offset, TRUE);
if (drawable != 0)
{
LLFixedBuffer::addLine(wline.substr(offset, drawable));
mAddTimes[mAddTimes.size()-1] = line_info.add_time;
}
else
{
// force a blank line
LLFixedBuffer::addLine(" ");
}
mColors.push_back(color);
offset += (drawable + skip_chars);
}
}
}
mLineQueue.clear();
}
// static
LLRect LLNotifyBox::getNotifyTipRect(const std::string &utf8message)
{
LLWString message = utf8str_to_wstring(utf8message);
S32 message_len = message.length();
const S32 NOTIFY_WIDTH = gSavedSettings.getS32("NotifyBoxWidth");
// Make room for the icon area.
const S32 text_area_width = NOTIFY_WIDTH - HPAD * 4 - 32;
const llwchar* wchars = message.c_str();
const llwchar* start = wchars;
const llwchar* end;
S32 total_drawn = 0;
bool done = false;
S32 line_count;
for (line_count = 2; !done; ++line_count)
{
for (end = start; *end != 0 && *end != '\n'; end++);
if (*end == 0)
{
end = wchars + message_len;
done = true;
}
for (S32 remaining = end - start; remaining;)
{
S32 drawn = sFont->maxDrawableChars(start, (F32)text_area_width, remaining, LLFontGL::WORD_BOUNDARY_IF_POSSIBLE);
if (0 == drawn)
{
drawn = 1; // Draw at least one character, even if it doesn't all fit. (avoids an infinite loop)
}
total_drawn += drawn;
start += drawn;
remaining -= drawn;
if (total_drawn < message_len)
{
if (wchars[ total_drawn ] != '\n')
{
// wrap because line was too long
line_count++;
}
}
else
{
done = true;
}
}
total_drawn++; // for '\n'
start = ++end;
}
const S32 MIN_NOTIFY_HEIGHT = 72;
const S32 MAX_NOTIFY_HEIGHT = 600;
S32 notify_height = llceil((F32) (line_count+1) * sFont->getLineHeight());
if (gOverlayBar)
{
notify_height += gOverlayBar->getBoundingRect().mTop;
}
else
{
// *FIX: this is derived from the padding caused by the
// rounded rects, shouldn't be a const here.
notify_height += 10;
}
notify_height += VPAD;
notify_height = llclamp(notify_height, MIN_NOTIFY_HEIGHT, MAX_NOTIFY_HEIGHT);
const S32 RIGHT = gNotifyBoxView->getRect().getWidth();
const S32 LEFT = RIGHT - NOTIFY_WIDTH;
// Make sure it goes slightly offscreen
return LLRect(LEFT, notify_height-1, RIGHT, -1);
}
F32 LLFontGL::getWidthF32(const std::string& utf8text, const S32 begin_offset, const S32 max_chars ) const
{
LLWString wtext = utf8str_to_wstring(utf8text);
return getWidthF32(wtext.c_str(), begin_offset, max_chars);
}
F32 LLFontGL::getWidthF32(const std::string& utf8text) const
{
LLWString wtext = utf8str_to_wstring(utf8text);
return getWidthF32(wtext.c_str(), 0, S32_MAX);
}
S32 LLFontGL::render(const LLWString &wstr,
const S32 begin_offset,
const F32 x, const F32 y,
const LLColor4 &color,
const HAlign halign, const VAlign valign,
U8 style,
const S32 max_chars, S32 max_pixels,
F32* right_x,
BOOL use_embedded,
BOOL use_ellipses) const
{
if(!sDisplayFont) //do not display texts
{
return wstr.length() ;
}
if (wstr.empty())
{
return 0;
}
gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
S32 scaled_max_pixels = max_pixels == S32_MAX ? S32_MAX : llceil((F32)max_pixels * sScaleX);
// Strip off any style bits that are already accounted for by the font.
style = style & (~getFontDesc().getStyle());
F32 drop_shadow_strength = 0.f;
if (style & (DROP_SHADOW | DROP_SHADOW_SOFT))
{
F32 luminance;
color.calcHSL(NULL, NULL, &luminance);
drop_shadow_strength = clamp_rescale(luminance, 0.35f, 0.6f, 0.f, 1.f);
if (luminance < 0.35f)
{
style = style & ~(DROP_SHADOW | DROP_SHADOW_SOFT);
}
}
gGL.pushMatrix();
glLoadIdentity();
gGL.translatef(floorf(sCurOrigin.mX*sScaleX), floorf(sCurOrigin.mY*sScaleY), sCurOrigin.mZ);
// this code snaps the text origin to a pixel grid to start with
F32 pixel_offset_x = llround((F32)sCurOrigin.mX) - (sCurOrigin.mX);
F32 pixel_offset_y = llround((F32)sCurOrigin.mY) - (sCurOrigin.mY);
gGL.translatef(-pixel_offset_x, -pixel_offset_y, 0.f);
LLFastTimer t(LLFastTimer::FTM_RENDER_FONTS);
gGL.color4fv( color.mV );
S32 chars_drawn = 0;
S32 i;
S32 length;
if (-1 == max_chars)
{
length = (S32)wstr.length() - begin_offset;
}
else
{
length = llmin((S32)wstr.length() - begin_offset, max_chars );
}
F32 cur_x, cur_y, cur_render_x, cur_render_y;
// Not guaranteed to be set correctly
gGL.setSceneBlendType(LLRender::BT_ALPHA);
cur_x = ((F32)x * sScaleX);
cur_y = ((F32)y * sScaleY);
// Offset y by vertical alignment.
switch (valign)
{
case TOP:
cur_y -= mAscender;
break;
case BOTTOM:
cur_y += mDescender;
break;
case VCENTER:
cur_y -= ((mAscender - mDescender)/2.f);
break;
case BASELINE:
// Baseline, do nothing.
break;
default:
break;
}
switch (halign)
{
case LEFT:
break;
case RIGHT:
cur_x -= llmin(scaled_max_pixels, llround(getWidthF32(wstr.c_str(), 0, length) * sScaleX));
break;
case HCENTER:
cur_x -= llmin(scaled_max_pixels, llround(getWidthF32(wstr.c_str(), 0, length) * sScaleX)) / 2;
break;
default:
break;
}
cur_render_y = cur_y;
cur_render_x = cur_x;
F32 start_x = cur_x;
F32 inv_width = 1.f / mFontBitmapCachep->getBitmapWidth();
F32 inv_height = 1.f / mFontBitmapCachep->getBitmapHeight();
const S32 LAST_CHARACTER = LLFont::LAST_CHAR_FULL;
BOOL draw_ellipses = FALSE;
if (use_ellipses && halign == LEFT)
{
// check for too long of a string
if (getWidthF32(wstr.c_str(), 0, max_chars) * sScaleX > scaled_max_pixels)
{
// use four dots for ellipsis width to generate padding
const LLWString dots(utf8str_to_wstring(std::string("....")));
scaled_max_pixels = llmax(0, scaled_max_pixels - llround(getWidthF32(dots.c_str())));
draw_ellipses = TRUE;
}
}
// Remember last-used texture to avoid unnecesssary bind calls.
LLImageGL *last_bound_texture = NULL;
for (i = begin_offset; i < begin_offset + length; i++)
{
llwchar wch = wstr[i];
// Handle embedded characters first, if they're enabled.
// Embedded characters are a hack for notecards
const embedded_data_t* ext_data = use_embedded ? getEmbeddedCharData(wch) : NULL;
if (ext_data)
{
LLImageGL* ext_image = ext_data->mImage;
const LLWString& label = ext_data->mLabel;
F32 ext_height = (F32)ext_image->getHeight() * sScaleY;
F32 ext_width = (F32)ext_image->getWidth() * sScaleX;
F32 ext_advance = (EXT_X_BEARING * sScaleX) + ext_width;
if (!label.empty())
{
ext_advance += (EXT_X_BEARING + getFontExtChar()->getWidthF32( label.c_str() )) * sScaleX;
}
if (start_x + scaled_max_pixels < cur_x + ext_advance)
{
// Not enough room for this character.
break;
}
if (last_bound_texture != ext_image)
{
gGL.getTexUnit(0)->bind(ext_image);
last_bound_texture = ext_image;
}
// snap origin to whole screen pixel
const F32 ext_x = (F32)llround(cur_render_x + (EXT_X_BEARING * sScaleX));
const F32 ext_y = (F32)llround(cur_render_y + (EXT_Y_BEARING * sScaleY + mAscender - mLineHeight));
LLRectf uv_rect(0.f, 1.f, 1.f, 0.f);
LLRectf screen_rect(ext_x, ext_y + ext_height, ext_x + ext_width, ext_y);
drawGlyph(screen_rect, uv_rect, LLColor4::white, style, drop_shadow_strength);
if (!label.empty())
{
gGL.pushMatrix();
//glLoadIdentity();
//gGL.translatef(sCurOrigin.mX, sCurOrigin.mY, 0.0f);
//glScalef(sScaleX, sScaleY, 1.f);
getFontExtChar()->render(label, 0,
/*llfloor*/((ext_x + (F32)ext_image->getWidth() + EXT_X_BEARING) / sScaleX),
/*llfloor*/(cur_y / sScaleY),
color,
halign, BASELINE, NORMAL, S32_MAX, S32_MAX, NULL,
TRUE );
gGL.popMatrix();
}
gGL.color4fv(color.mV);
chars_drawn++;
cur_x += ext_advance;
if (((i + 1) < length) && wstr[i+1])
{
cur_x += EXT_KERNING * sScaleX;
}
cur_render_x = cur_x;
}
else
{
if (!hasGlyph(wch))
{
addChar(wch);
}
const LLFontGlyphInfo* fgi= getGlyphInfo(wch);
if (!fgi)
{
llerrs << "Missing Glyph Info" << llendl;
break;
}
// Per-glyph bitmap texture.
LLImageGL *image_gl = mFontBitmapCachep->getImageGL(fgi->mBitmapNum);
if (last_bound_texture != image_gl)
{
gGL.getTexUnit(0)->bind(image_gl);
last_bound_texture = image_gl;
}
if ((start_x + scaled_max_pixels) < (cur_x + fgi->mXBearing + fgi->mWidth))
{
// Not enough room for this character.
break;
}
// Draw the text at the appropriate location
//Specify vertices and texture coordinates
LLRectf uv_rect((fgi->mXBitmapOffset) * inv_width,
(fgi->mYBitmapOffset + fgi->mHeight + PAD_UVY) * inv_height,
(fgi->mXBitmapOffset + fgi->mWidth) * inv_width,
(fgi->mYBitmapOffset - PAD_UVY) * inv_height);
// snap glyph origin to whole screen pixel
LLRectf screen_rect(llround(cur_render_x + (F32)fgi->mXBearing),
llround(cur_render_y + (F32)fgi->mYBearing),
llround(cur_render_x + (F32)fgi->mXBearing) + (F32)fgi->mWidth,
llround(cur_render_y + (F32)fgi->mYBearing) - (F32)fgi->mHeight);
drawGlyph(screen_rect, uv_rect, color, style, drop_shadow_strength);
chars_drawn++;
cur_x += fgi->mXAdvance;
cur_y += fgi->mYAdvance;
llwchar next_char = wstr[i+1];
if (next_char && (next_char < LAST_CHARACTER))
{
// Kern this puppy.
if (!hasGlyph(next_char))
{
addChar(next_char);
}
cur_x += getXKerning(wch, next_char);
}
// Round after kerning.
// Must do this to cur_x, not just to cur_render_x, otherwise you
// will squish sub-pixel kerned characters too close together.
// For example, "CCCCC" looks bad.
cur_x = (F32)llfloor(cur_x + 0.5f);
//cur_y = (F32)llfloor(cur_y + 0.5f);
cur_render_x = cur_x;
cur_render_y = cur_y;
}
}
if (right_x)
{
*right_x = cur_x / sScaleX;
}
if (style & UNDERLINE)
{
gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
gGL.begin(LLRender::LINES);
gGL.vertex2f(start_x, cur_y - (mDescender));
gGL.vertex2f(cur_x, cur_y - (mDescender));
gGL.end();
}
// *FIX: get this working in all alignment cases, etc.
if (draw_ellipses)
{
// recursively render ellipses at end of string
// we've already reserved enough room
gGL.pushMatrix();
//glLoadIdentity();
//gGL.translatef(sCurOrigin.mX, sCurOrigin.mY, 0.0f);
//glScalef(sScaleX, sScaleY, 1.f);
renderUTF8(std::string("..."),
0,
cur_x / sScaleX, (F32)y,
color,
LEFT, valign,
style,
S32_MAX, max_pixels,
right_x,
FALSE);
gGL.popMatrix();
}
gGL.popMatrix();
return chars_drawn;
}
// Walk through a string, applying the rules specified by the keyword token list and
// create a list of color segments.
void LLKeywords::findSegments(std::vector<LLTextSegment *>* seg_list, const LLWString& wtext, const LLColor4 &defaultColor)
{
std::for_each(seg_list->begin(), seg_list->end(), DeletePointer());
seg_list->clear();
if( wtext.empty() )
{
return;
}
S32 text_len = wtext.size();
seg_list->push_back( new LLTextSegment( LLColor3(defaultColor), 0, text_len ) );
const llwchar* base = wtext.c_str();
const llwchar* cur = base;
const llwchar* line = NULL;
while( *cur )
{
if( *cur == '\n' || cur == base )
{
if( *cur == '\n' )
{
cur++;
if( !*cur || *cur == '\n' )
{
continue;
}
}
// Start of a new line
line = cur;
// Skip white space
while( *cur && isspace(*cur) && (*cur != '\n') )
{
cur++;
}
if( !*cur || *cur == '\n' )
{
continue;
}
// cur is now at the first non-whitespace character of a new line
// Line start tokens
{
BOOL line_done = FALSE;
for (token_list_t::iterator iter = mLineTokenList.begin();
iter != mLineTokenList.end(); ++iter)
{
LLKeywordToken* cur_token = *iter;
if( cur_token->isHead( cur ) )
{
S32 seg_start = cur - base;
while( *cur && *cur != '\n' )
{
// skip the rest of the line
cur++;
}
S32 seg_end = cur - base;
LLTextSegment* text_segment = new LLTextSegment( cur_token->getColor(), seg_start, seg_end );
text_segment->setToken( cur_token );
insertSegment( seg_list, text_segment, text_len, defaultColor);
line_done = TRUE; // to break out of second loop.
break;
}
}
if( line_done )
{
continue;
}
}
}
// Skip white space
while( *cur && isspace(*cur) && (*cur != '\n') )
{
cur++;
}
while( *cur && *cur != '\n' )
{
// Check against delimiters
{
S32 seg_start = 0;
LLKeywordToken* cur_delimiter = NULL;
for (token_list_t::iterator iter = mDelimiterTokenList.begin();
iter != mDelimiterTokenList.end(); ++iter)
{
LLKeywordToken* delimiter = *iter;
if( delimiter->isHead( cur ) )
{
cur_delimiter = delimiter;
break;
}
}
if( cur_delimiter )
{
S32 between_delimiters = 0;
S32 seg_end = 0;
seg_start = cur - base;
cur += cur_delimiter->getLength();
if( cur_delimiter->getType() == LLKeywordToken::TWO_SIDED_DELIMITER )
{
while( *cur && !cur_delimiter->isHead(cur))
{
// Check for an escape sequence.
if (*cur == '\\')
{
// Count the number of backslashes.
S32 num_backslashes = 0;
while (*cur == '\\')
{
num_backslashes++;
between_delimiters++;
cur++;
}
// Is the next character the end delimiter?
if (cur_delimiter->isHead(cur))
{
// Is there was an odd number of backslashes, then this delimiter
// does not end the sequence.
if (num_backslashes % 2 == 1)
{
between_delimiters++;
cur++;
}
else
{
// This is an end delimiter.
break;
}
}
}
else
{
between_delimiters++;
cur++;
}
}
if( *cur )
{
cur += cur_delimiter->getLength();
seg_end = seg_start + between_delimiters + 2 * cur_delimiter->getLength();
}
else
{
// eof
seg_end = seg_start + between_delimiters + cur_delimiter->getLength();
}
}
else
{
llassert( cur_delimiter->getType() == LLKeywordToken::ONE_SIDED_DELIMITER );
// Left side is the delimiter. Right side is eol or eof.
while( *cur && ('\n' != *cur) )
{
between_delimiters++;
cur++;
}
seg_end = seg_start + between_delimiters + cur_delimiter->getLength();
}
LLTextSegment* text_segment = new LLTextSegment( cur_delimiter->getColor(), seg_start, seg_end );
text_segment->setToken( cur_delimiter );
insertSegment( seg_list, text_segment, text_len, defaultColor);
// Note: we don't increment cur, since the end of one delimited seg may be immediately
// followed by the start of another one.
continue;
}
}
// check against words
llwchar prev = cur > base ? *(cur-1) : 0;
if( !isalnum( prev ) && (prev != '_') )
{
const llwchar* p = cur;
while( isalnum( *p ) || (*p == '_') )
{
p++;
}
S32 seg_len = p - cur;
if( seg_len > 0 )
{
LLWString word( cur, 0, seg_len );
word_token_map_t::iterator map_iter = mWordTokenMap.find(word);
if( map_iter != mWordTokenMap.end() )
{
LLKeywordToken* cur_token = map_iter->second;
S32 seg_start = cur - base;
S32 seg_end = seg_start + seg_len;
// llinfos << "Seg: [" << word.c_str() << "]" << llendl;
LLTextSegment* text_segment = new LLTextSegment( cur_token->getColor(), seg_start, seg_end );
text_segment->setToken( cur_token );
insertSegment( seg_list, text_segment, text_len, defaultColor);
}
cur += seg_len;
continue;
}
}
if( *cur && *cur != '\n' )
{
cur++;
}
}
}
}
// virtual
void LLButton::draw()
{
BOOL flash = FALSE;
if( mFlashing )
{
F32 elapsed = mFlashingTimer.getElapsedTimeF32();
S32 flash_count = S32(elapsed * LLUI::sConfigGroup->getF32("ButtonFlashRate") * 2.f);
// flash on or off?
flash = (flash_count % 2 == 0) || flash_count > S32((F32)LLUI::sConfigGroup->getS32("ButtonFlashCount") * 2.f);
}
BOOL pressed_by_keyboard = FALSE;
if (hasFocus())
{
pressed_by_keyboard = gKeyboard->getKeyDown(' ') || (mCommitOnReturn && gKeyboard->getKeyDown(KEY_RETURN));
}
// Unselected image assignments
S32 local_mouse_x;
S32 local_mouse_y;
LLUI::getMousePositionLocal(this, &local_mouse_x, &local_mouse_y);
BOOL pressed = pressed_by_keyboard
|| (hasMouseCapture() && pointInView(local_mouse_x, local_mouse_y))
|| mToggleState;
BOOL use_glow_effect = FALSE;
LLColor4 glow_color = LLColor4::white;
LLRender::eBlendType glow_type = LLRender::BT_ADD_WITH_ALPHA;
if ( mNeedsHighlight )
{
if (pressed)
{
if (mImageHoverSelected)
{
mImagep = mImageHoverSelected;
}
else
{
mImagep = mImageSelected;
use_glow_effect = TRUE;
}
}
else
{
if (mImageHoverUnselected)
{
mImagep = mImageHoverUnselected;
}
else
{
mImagep = mImageUnselected;
use_glow_effect = TRUE;
}
}
}
else if ( pressed )
{
mImagep = mImageSelected;
}
else
{
mImagep = mImageUnselected;
}
if (mFlashing)
{
use_glow_effect = TRUE;
glow_type = LLRender::BT_ALPHA; // blend the glow
if (mNeedsHighlight) // highlighted AND flashing
glow_color = (glow_color*0.5f + mFlashBgColor*0.5f) % 2.0f; // average between flash and highlight colour, with sum of the opacity
else
glow_color = mFlashBgColor;
}
// Override if more data is available
// HACK: Use gray checked state to mean either:
// enabled and tentative
// or
// disabled but checked
if (!mImageDisabledSelected.isNull()
&&
( (getEnabled() && getTentative())
|| (!getEnabled() && pressed ) ) )
{
mImagep = mImageDisabledSelected;
}
else if (!mImageDisabled.isNull()
&& !getEnabled()
&& !pressed)
{
mImagep = mImageDisabled;
}
if (mNeedsHighlight && !mImagep)
{
use_glow_effect = TRUE;
}
// Figure out appropriate color for the text
LLColor4 label_color;
// label changes when button state changes, not when pressed
if ( getEnabled() )
{
if ( mToggleState )
{
label_color = mSelectedLabelColor;
}
else
{
label_color = mUnselectedLabelColor;
}
}
else
{
if ( mToggleState )
{
label_color = mDisabledSelectedLabelColor;
}
else
{
label_color = mDisabledLabelColor;
}
}
// Unselected label assignments
LLWString label;
if( mToggleState )
{
if( getEnabled() || mDisabledSelectedLabel.empty() )
{
label = mSelectedLabel;
}
else
{
label = mDisabledSelectedLabel;
}
}
else
{
if( getEnabled() || mDisabledLabel.empty() )
{
label = mUnselectedLabel;
}
else
{
label = mDisabledLabel;
}
}
// overlay with keyboard focus border
if (hasFocus())
{
F32 lerp_amt = gFocusMgr.getFocusFlashAmt();
drawBorder(gFocusMgr.getFocusColor(), llround(lerp(1.f, 3.f, lerp_amt)));
}
if (use_glow_effect)
{
mCurGlowStrength = lerp(mCurGlowStrength,
mFlashing ? (flash? 1.0 : 0.0)
: mHoverGlowStrength,
LLCriticalDamp::getInterpolant(0.05f));
}
else
{
mCurGlowStrength = lerp(mCurGlowStrength, 0.f, LLCriticalDamp::getInterpolant(0.05f));
}
// Draw button image, if available.
// Otherwise draw basic rectangular button.
if (mImagep.notNull())
{
if ( mScaleImage)
{
mImagep->draw(getLocalRect(), getEnabled() ? mImageColor : mDisabledImageColor );
if (mCurGlowStrength > 0.01f)
{
gGL.setSceneBlendType(glow_type);
mImagep->drawSolid(0, 0, getRect().getWidth(), getRect().getHeight(), glow_color % mCurGlowStrength);
gGL.setSceneBlendType(LLRender::BT_ALPHA);
}
}
else
{
mImagep->draw(0, 0, getEnabled() ? mImageColor : mDisabledImageColor );
if (mCurGlowStrength > 0.01f)
{
gGL.setSceneBlendType(glow_type);
mImagep->drawSolid(0, 0, glow_color % mCurGlowStrength);
gGL.setSceneBlendType(LLRender::BT_ALPHA);
}
}
}
else
{
// no image
llwarns << "No image for button " << getName() << llendl;
// draw it in pink so we can find it
gl_rect_2d(0, getRect().getHeight(), getRect().getWidth(), 0, LLColor4::pink1, FALSE);
}
// let overlay image and text play well together
S32 text_left = mLeftHPad;
S32 text_right = getRect().getWidth() - mRightHPad;
S32 text_width = getRect().getWidth() - mLeftHPad - mRightHPad;
S32 text_middle = text_left + text_width/2;
// draw overlay image
if (mImageOverlay.notNull() && mImageOverlay->getWidth() > 1)
{
// get max width and height (discard level 0)
S32 overlay_width = mImageOverlay->getWidth();
S32 overlay_height = mImageOverlay->getHeight();
F32 scale_factor = llmin((F32)getRect().getWidth() / (F32)overlay_width, (F32)getRect().getHeight() / (F32)overlay_height, 1.f);
overlay_width = llround((F32)overlay_width * scale_factor);
overlay_height = llround((F32)overlay_height * scale_factor);
S32 center_x = getLocalRect().getCenterX();
S32 center_y = getLocalRect().getCenterY();
//FUGLY HACK FOR "DEPRESSED" BUTTONS
if (pressed)
{
center_y--;
center_x++;
}
// fade out overlay images on disabled buttons
LLColor4 overlay_color = mImageOverlayColor;
if (!getEnabled())
{
overlay_color.mV[VALPHA] = 0.5f;
}
switch(mImageOverlayAlignment)
{
case LLFontGL::LEFT:
text_left += overlay_width + 1;
text_width -= overlay_width + 1;
text_middle += (overlay_width+1)/4;
mImageOverlay->draw(
mLeftHPad,
center_y - (overlay_height / 2),
overlay_width,
overlay_height,
overlay_color);
break;
case LLFontGL::HCENTER:
mImageOverlay->draw(
center_x - (overlay_width / 2),
center_y - (overlay_height / 2),
overlay_width,
overlay_height,
overlay_color);
break;
case LLFontGL::RIGHT:
text_right -= overlay_width + 1;
text_width -= overlay_width + 1;
text_middle += (overlay_width+1)/4;
mImageOverlay->draw(
getRect().getWidth() - mRightHPad - overlay_width,
center_y - (overlay_height / 2),
overlay_width,
overlay_height,
overlay_color);
break;
default:
// draw nothing
break;
}
}
// Draw label
if( !label.empty() )
{
LLWStringUtil::trim(label);
S32 x;
switch( mHAlign )
{
case LLFontGL::RIGHT:
x = text_right;
break;
case LLFontGL::HCENTER:
{
S32 actual_width = mGLFont->getWidth(label.c_str());
x = llmax(text_middle, text_left + actual_width/2);
}
break;
case LLFontGL::LEFT:
default:
x = text_left;
break;
}
S32 y_offset = 2 + (getRect().getHeight() - 20)/2;
if (pressed)
{
y_offset--;
x++;
}
mGLFont->render(label, 0,
(F32)x,
(F32)(LLBUTTON_V_PAD + y_offset),
label_color,
mHAlign, LLFontGL::BOTTOM,
LLFontGL::NORMAL,
mDropShadowedText ? LLFontGL::DROP_SHADOW_SOFT : LLFontGL::NO_SHADOW,
U32_MAX, text_width,
NULL, FALSE, FALSE);
}
if (sDebugRects
|| (LLView::sEditingUI && this == LLView::sEditingUIView))
{
drawDebugRect();
}
// reset hover status for next frame
mNeedsHighlight = FALSE;
}
S32 LLFontGL::render(const LLWString &wstr, S32 begin_offset, F32 x, F32 y, const LLColor4 &color, HAlign halign, VAlign valign, U8 style,
ShadowType shadow, S32 max_chars, S32 max_pixels, F32* right_x, BOOL use_embedded, BOOL use_ellipses) const
{
LLFastTimer _(FTM_RENDER_FONTS);
if(!sDisplayFont) //do not display texts
{
return wstr.length() ;
}
if (wstr.empty() || !max_pixels)
{
return 0;
}
if (max_chars == -1)
max_chars = S32_MAX;
const S32 max_index = llmin(llmax(max_chars, begin_offset + max_chars), S32(wstr.length()));
if (max_index <= 0 || begin_offset >= max_index || max_pixels <= 0)
return 0;
gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
S32 scaled_max_pixels = max_pixels == S32_MAX ? S32_MAX : llceil((F32)max_pixels * sScaleX);
// Strip off any style bits that are already accounted for by the font.
style = style & (~getFontDesc().getStyle());
F32 drop_shadow_strength = 0.f;
if (shadow != NO_SHADOW)
{
F32 luminance;
color.calcHSL(NULL, NULL, &luminance);
drop_shadow_strength = clamp_rescale(luminance, 0.35f, 0.6f, 0.f, 1.f);
if (luminance < 0.35f)
{
shadow = NO_SHADOW;
}
}
gGL.pushUIMatrix();
gGL.loadUIIdentity();
LLVector2 origin(floorf(sCurOrigin.mX*sScaleX), floorf(sCurOrigin.mY*sScaleY));
// Depth translation, so that floating text appears 'in-world'
// and is correctly occluded.
gGL.translatef(0.f,0.f,sCurDepth);
S32 chars_drawn = 0;
S32 i;
S32 length = max_index - begin_offset;
F32 cur_x, cur_y, cur_render_x, cur_render_y;
// Not guaranteed to be set correctly
gGL.setSceneBlendType(LLRender::BT_ALPHA);
cur_x = ((F32)x * sScaleX) + origin.mV[VX];
cur_y = ((F32)y * sScaleY) + origin.mV[VY];
// Offset y by vertical alignment.
// use unscaled font metrics here
switch (valign)
{
case TOP:
cur_y -= llceil(mFontFreetype->getAscenderHeight());
break;
case BOTTOM:
cur_y += llceil(mFontFreetype->getDescenderHeight());
break;
case VCENTER:
cur_y -= llceil((llceil(mFontFreetype->getAscenderHeight()) - llceil(mFontFreetype->getDescenderHeight())) / 2.f);
break;
case BASELINE:
// Baseline, do nothing.
break;
default:
break;
}
switch (halign)
{
case LEFT:
break;
case RIGHT:
cur_x -= llmin(scaled_max_pixels, ll_round(getWidthF32(wstr.c_str(), begin_offset, length) * sScaleX));
break;
case HCENTER:
cur_x -= llmin(scaled_max_pixels, ll_round(getWidthF32(wstr.c_str(), begin_offset, length) * sScaleX)) / 2;
break;
default:
break;
}
cur_render_y = cur_y;
cur_render_x = cur_x;
F32 start_x = (F32)ll_round(cur_x);
const LLFontBitmapCache* font_bitmap_cache = mFontFreetype->getFontBitmapCache();
F32 inv_width = 1.f / font_bitmap_cache->getBitmapWidth();
F32 inv_height = 1.f / font_bitmap_cache->getBitmapHeight();
const S32 LAST_CHARACTER = LLFontFreetype::LAST_CHAR_FULL;
BOOL draw_ellipses = FALSE;
if (use_ellipses && halign == LEFT)
{
// check for too long of a string
S32 string_width = ll_round(getWidthF32(wstr, begin_offset, max_chars) * sScaleX);
if (string_width > scaled_max_pixels)
{
// use four dots for ellipsis width to generate padding
const LLWString dots(utf8str_to_wstring(std::string("....")));
scaled_max_pixels = llmax(0, scaled_max_pixels - ll_round(getWidthF32(dots.c_str())));
draw_ellipses = TRUE;
}
}
const LLFontGlyphInfo* next_glyph = NULL;
const S32 GLYPH_BATCH_SIZE = 30;
static LL_ALIGN_16(LLVector4a vertices[GLYPH_BATCH_SIZE * 4]);
static LLVector2 uvs[GLYPH_BATCH_SIZE * 4];
static LLColor4U colors[GLYPH_BATCH_SIZE * 4];
LLColor4U text_color(color);
S32 bitmap_num = -1;
S32 glyph_count = 0;
for (i = begin_offset; i < begin_offset + length; i++)
{
llwchar wch = wstr[i];
// Handle embedded characters first, if they're enabled.
// Embedded characters are a hack for notecards
const embedded_data_t* ext_data = use_embedded ? getEmbeddedCharData(wch) : NULL;
if (ext_data)
{
LLImageGL* ext_image = ext_data->mImage;
const LLWString& label = ext_data->mLabel;
F32 ext_height = (F32)ext_image->getHeight() * sScaleY;
F32 ext_width = (F32)ext_image->getWidth() * sScaleX;
F32 ext_advance = (EXT_X_BEARING * sScaleX) + ext_width;
if (!label.empty())
{
ext_advance += (EXT_X_BEARING + getFontExtChar()->getWidthF32( label.c_str() )) * sScaleX;
}
if (start_x + scaled_max_pixels < cur_x + ext_advance)
{
// Not enough room for this character.
break;
}
gGL.getTexUnit(0)->bind(ext_image);
// snap origin to whole screen pixel
const F32 ext_x = (F32)ll_round(cur_render_x + (EXT_X_BEARING * sScaleX));
const F32 ext_y = (F32)ll_round(cur_render_y + (EXT_Y_BEARING * sScaleY + mFontFreetype->getAscenderHeight() - mFontFreetype->getLineHeight()));
LLRectf uv_rect(0.f, 1.f, 1.f, 0.f);
LLRectf screen_rect(ext_x, ext_y + ext_height, ext_x + ext_width, ext_y);
if (glyph_count > 0)
{
gGL.begin(LLRender::QUADS);
{
gGL.vertexBatchPreTransformed(vertices, uvs, colors, glyph_count * 4);
}
gGL.end();
glyph_count = 0;
}
renderQuad(vertices, uvs, colors, screen_rect, uv_rect, LLColor4U::white, 0);
//No batching here. It will never happen.
gGL.begin(LLRender::QUADS);
{
gGL.vertexBatchPreTransformed(vertices, uvs, colors, 4);
}
gGL.end();
if (!label.empty())
{
gGL.pushMatrix();
getFontExtChar()->render(label, 0,
/*llfloor*/(ext_x / sScaleX) + ext_image->getWidth() + EXT_X_BEARING - sCurOrigin.mX,
/*llfloor*/(cur_render_y / sScaleY) - sCurOrigin.mY,
color,
halign, BASELINE, UNDERLINE, NO_SHADOW, S32_MAX, S32_MAX, NULL,
TRUE );
gGL.popMatrix();
}
chars_drawn++;
cur_x += ext_advance;
if (((i + 1) < length) && wstr[i+1])
{
cur_x += EXT_KERNING * sScaleX;
}
cur_render_x = cur_x;
}
else
{
const LLFontGlyphInfo* fgi = next_glyph;
next_glyph = NULL;
if(!fgi)
{
fgi = mFontFreetype->getGlyphInfo(wch);
}
if (!fgi)
{
LL_ERRS() << "Missing Glyph Info" << LL_ENDL;
break;
}
// Per-glyph bitmap texture.
S32 next_bitmap_num = fgi->mBitmapNum;
if (next_bitmap_num != bitmap_num)
{
// Actually draw the queued glyphs before switching their texture;
// otherwise the queued glyphs will be taken from wrong textures.
if (glyph_count > 0)
{
gGL.begin(LLRender::QUADS);
{
gGL.vertexBatchPreTransformed(vertices, uvs, colors, glyph_count * 4);
}
gGL.end();
glyph_count = 0;
}
bitmap_num = next_bitmap_num;
LLImageGL *font_image = font_bitmap_cache->getImageGL(bitmap_num);
gGL.getTexUnit(0)->bind(font_image);
}
if ((start_x + scaled_max_pixels) < (cur_x + fgi->mXBearing + fgi->mWidth))
{
// Not enough room for this character.
break;
}
// Draw the text at the appropriate location
//Specify vertices and texture coordinates
LLRectf uv_rect((fgi->mXBitmapOffset) * inv_width,
(fgi->mYBitmapOffset + fgi->mHeight + PAD_UVY) * inv_height,
(fgi->mXBitmapOffset + fgi->mWidth) * inv_width,
(fgi->mYBitmapOffset - PAD_UVY) * inv_height);
// snap glyph origin to whole screen pixel
LLRectf screen_rect((F32)ll_round(cur_render_x + (F32)fgi->mXBearing),
(F32)ll_round(cur_render_y + (F32)fgi->mYBearing),
(F32)ll_round(cur_render_x + (F32)fgi->mXBearing) + (F32)fgi->mWidth,
(F32)ll_round(cur_render_y + (F32)fgi->mYBearing) - (F32)fgi->mHeight);
if (glyph_count >= GLYPH_BATCH_SIZE)
{
gGL.begin(LLRender::QUADS);
{
gGL.vertexBatchPreTransformed(vertices, uvs, colors, glyph_count * 4);
}
gGL.end();
glyph_count = 0;
}
drawGlyph(glyph_count, vertices, uvs, colors, screen_rect, uv_rect, text_color, style, shadow, drop_shadow_strength);
chars_drawn++;
cur_x += fgi->mXAdvance;
cur_y += fgi->mYAdvance;
llwchar next_char = wstr[i+1];
if (next_char && (next_char < LAST_CHARACTER))
{
// Kern this puppy.
next_glyph = mFontFreetype->getGlyphInfo(next_char);
cur_x += mFontFreetype->getXKerning(fgi, next_glyph);
}
// Round after kerning.
// Must do this to cur_x, not just to cur_render_x, otherwise you
// will squish sub-pixel kerned characters too close together.
// For example, "CCCCC" looks bad.
cur_x = (F32)ll_round(cur_x);
//cur_y = (F32)ll_round(cur_y);
cur_render_x = cur_x;
cur_render_y = cur_y;
}
}
if(glyph_count)
{
gGL.begin(LLRender::QUADS);
{
gGL.vertexBatchPreTransformed(vertices, uvs, colors, glyph_count * 4);
}
gGL.end();
}
if (right_x)
{
*right_x = (cur_x - origin.mV[VX]) / sScaleX;
}
if (style & UNDERLINE)
{
F32 descender = (F32)llfloor(mFontFreetype->getDescenderHeight());
gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
gGL.begin(LLRender::LINES);
gGL.vertex2f(start_x, cur_y - descender);
gGL.vertex2f(cur_x, cur_y - descender);
gGL.end();
}
if (draw_ellipses)
{
// recursively render ellipses at end of string
// we've already reserved enough room
gGL.pushUIMatrix();
renderUTF8(std::string("..."),
0,
(cur_x - origin.mV[VX]) / sScaleX, (F32)y,
color,
LEFT, valign,
style,
shadow,
S32_MAX, max_pixels,
right_x,
FALSE);
gGL.popUIMatrix();
}
gGL.popUIMatrix();
return chars_drawn;
}
S32 LLFontGL::render(const LLWString &wstr, S32 begin_offset, F32 x, F32 y, const LLColor4 &color, HAlign halign, VAlign valign, U8 style,
ShadowType shadow, S32 max_chars, S32 max_pixels, F32* right_x, BOOL use_ellipses) const
{
LLFastTimer _(FTM_RENDER_FONTS);
if(!sDisplayFont) //do not display texts
{
return wstr.length() ;
}
if (wstr.empty())
{
return 0;
}
gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
S32 scaled_max_pixels = max_pixels == S32_MAX ? S32_MAX : llceil((F32)max_pixels * sScaleX);
// determine which style flags need to be added programmatically by stripping off the
// style bits that are drawn by the underlying Freetype font
U8 style_to_add = (style | mFontDescriptor.getStyle()) & ~mFontFreetype->getStyle();
F32 drop_shadow_strength = 0.f;
if (shadow != NO_SHADOW)
{
F32 luminance;
color.calcHSL(NULL, NULL, &luminance);
drop_shadow_strength = clamp_rescale(luminance, 0.35f, 0.6f, 0.f, 1.f);
if (luminance < 0.35f)
{
shadow = NO_SHADOW;
}
}
gGL.pushUIMatrix();
gGL.loadUIIdentity();
//gGL.translateUI(floorf(sCurOrigin.mX*sScaleX), floorf(sCurOrigin.mY*sScaleY), sCurOrigin.mZ);
// this code snaps the text origin to a pixel grid to start with
//F32 pixel_offset_x = llround((F32)sCurOrigin.mX) - (sCurOrigin.mX);
//F32 pixel_offset_y = llround((F32)sCurOrigin.mY) - (sCurOrigin.mY);
//gGL.translateUI(-pixel_offset_x, -pixel_offset_y, 0.f);
LLVector2 origin(floorf(sCurOrigin.mX*sScaleX), floorf(sCurOrigin.mY*sScaleY));
// snap the text origin to a pixel grid to start with
origin.mV[VX] -= llround((F32)sCurOrigin.mX) - (sCurOrigin.mX);
origin.mV[VY] -= llround((F32)sCurOrigin.mY) - (sCurOrigin.mY);
S32 chars_drawn = 0;
S32 i;
S32 length;
if (-1 == max_chars)
{
length = (S32)wstr.length() - begin_offset;
}
else
{
length = llmin((S32)wstr.length() - begin_offset, max_chars );
}
F32 cur_x, cur_y, cur_render_x, cur_render_y;
// Not guaranteed to be set correctly
gGL.setSceneBlendType(LLRender::BT_ALPHA);
cur_x = ((F32)x * sScaleX) + origin.mV[VX];
cur_y = ((F32)y * sScaleY) + origin.mV[VY];
// Offset y by vertical alignment.
switch (valign)
{
case TOP:
cur_y -= mFontFreetype->getAscenderHeight();
break;
case BOTTOM:
cur_y += mFontFreetype->getDescenderHeight();
break;
case VCENTER:
cur_y -= (mFontFreetype->getAscenderHeight() - mFontFreetype->getDescenderHeight()) / 2.f;
break;
case BASELINE:
// Baseline, do nothing.
break;
default:
break;
}
switch (halign)
{
case LEFT:
break;
case RIGHT:
cur_x -= llmin(scaled_max_pixels, llround(getWidthF32(wstr.c_str(), begin_offset, length) * sScaleX));
break;
case HCENTER:
cur_x -= llmin(scaled_max_pixels, llround(getWidthF32(wstr.c_str(), begin_offset, length) * sScaleX)) / 2;
break;
default:
break;
}
cur_render_y = cur_y;
cur_render_x = cur_x;
F32 start_x = llround(cur_x);
const LLFontBitmapCache* font_bitmap_cache = mFontFreetype->getFontBitmapCache();
F32 inv_width = 1.f / font_bitmap_cache->getBitmapWidth();
F32 inv_height = 1.f / font_bitmap_cache->getBitmapHeight();
const S32 LAST_CHARACTER = LLFontFreetype::LAST_CHAR_FULL;
BOOL draw_ellipses = FALSE;
if (use_ellipses)
{
// check for too long of a string
S32 string_width = llround(getWidthF32(wstr.c_str(), begin_offset, max_chars) * sScaleX);
if (string_width > scaled_max_pixels)
{
// use four dots for ellipsis width to generate padding
const LLWString dots(utf8str_to_wstring(std::string("....")));
scaled_max_pixels = llmax(0, scaled_max_pixels - llround(getWidthF32(dots.c_str())));
draw_ellipses = TRUE;
}
}
const LLFontGlyphInfo* next_glyph = NULL;
const S32 GLYPH_BATCH_SIZE = 30;
LLVector3 vertices[GLYPH_BATCH_SIZE * 4];
LLVector2 uvs[GLYPH_BATCH_SIZE * 4];
LLColor4U colors[GLYPH_BATCH_SIZE * 4];
LLColor4U text_color(color);
S32 bitmap_num = -1;
S32 glyph_count = 0;
for (i = begin_offset; i < begin_offset + length; i++)
{
llwchar wch = wstr[i];
const LLFontGlyphInfo* fgi = next_glyph;
next_glyph = NULL;
if(!fgi)
{
fgi = mFontFreetype->getGlyphInfo(wch);
}
if (!fgi)
{
llerrs << "Missing Glyph Info" << llendl;
break;
}
// Per-glyph bitmap texture.
S32 next_bitmap_num = fgi->mBitmapNum;
if (next_bitmap_num != bitmap_num)
{
bitmap_num = next_bitmap_num;
LLImageGL *font_image = font_bitmap_cache->getImageGL(bitmap_num);
gGL.getTexUnit(0)->bind(font_image);
}
if ((start_x + scaled_max_pixels) < (cur_x + fgi->mXBearing + fgi->mWidth))
{
// Not enough room for this character.
break;
}
// Draw the text at the appropriate location
//Specify vertices and texture coordinates
LLRectf uv_rect((fgi->mXBitmapOffset) * inv_width,
(fgi->mYBitmapOffset + fgi->mHeight + PAD_UVY) * inv_height,
(fgi->mXBitmapOffset + fgi->mWidth) * inv_width,
(fgi->mYBitmapOffset - PAD_UVY) * inv_height);
// snap glyph origin to whole screen pixel
LLRectf screen_rect(llround(cur_render_x + (F32)fgi->mXBearing),
llround(cur_render_y + (F32)fgi->mYBearing),
llround(cur_render_x + (F32)fgi->mXBearing) + (F32)fgi->mWidth,
llround(cur_render_y + (F32)fgi->mYBearing) - (F32)fgi->mHeight);
if (glyph_count >= GLYPH_BATCH_SIZE)
{
gGL.begin(LLRender::QUADS);
{
gGL.vertexBatchPreTransformed(vertices, uvs, colors, glyph_count * 4);
}
gGL.end();
glyph_count = 0;
}
drawGlyph(glyph_count, vertices, uvs, colors, screen_rect, uv_rect, text_color, style_to_add, shadow, drop_shadow_strength);
chars_drawn++;
cur_x += fgi->mXAdvance;
cur_y += fgi->mYAdvance;
llwchar next_char = wstr[i+1];
if (next_char && (next_char < LAST_CHARACTER))
{
// Kern this puppy.
next_glyph = mFontFreetype->getGlyphInfo(next_char);
cur_x += mFontFreetype->getXKerning(fgi, next_glyph);
}
// Round after kerning.
// Must do this to cur_x, not just to cur_render_x, otherwise you
// will squish sub-pixel kerned characters too close together.
// For example, "CCCCC" looks bad.
cur_x = (F32)llround(cur_x);
//cur_y = (F32)llround(cur_y);
cur_render_x = cur_x;
cur_render_y = cur_y;
}
gGL.begin(LLRender::QUADS);
{
gGL.vertexBatchPreTransformed(vertices, uvs, colors, glyph_count * 4);
}
gGL.end();
if (right_x)
{
*right_x = (cur_x - origin.mV[VX]) / sScaleX;
}
//FIXME: add underline as glyph?
if (style_to_add & UNDERLINE)
{
F32 descender = mFontFreetype->getDescenderHeight();
gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
gGL.begin(LLRender::LINES);
gGL.vertex2f(start_x, cur_y - (descender));
gGL.vertex2f(cur_x, cur_y - (descender));
gGL.end();
}
if (draw_ellipses)
{
// recursively render ellipses at end of string
// we've already reserved enough room
gGL.pushUIMatrix();
renderUTF8(std::string("..."),
0,
(cur_x - origin.mV[VX]) / sScaleX, (F32)y,
color,
LEFT, valign,
style_to_add,
shadow,
S32_MAX, max_pixels,
right_x,
FALSE);
gGL.popUIMatrix();
}
gGL.popUIMatrix();
return chars_drawn;
}
S32 LLFontGL::render(const LLWString &wstr,
const S32 begin_offset,
const F32 x, const F32 y,
const LLColor4 &color,
const HAlign halign, const VAlign valign,
U8 style,
const S32 max_chars, S32 max_pixels,
F32* right_x,
BOOL use_embedded,
BOOL use_ellipses) const
{
if(!sDisplayFont) //do not display texts
{
return wstr.length() ;
}
LLGLEnable tex(GL_TEXTURE_2D);
if (wstr.empty())
{
return 0;
}
S32 scaled_max_pixels = max_pixels == S32_MAX ? S32_MAX : llceil((F32)max_pixels * sScaleX);
// HACK for better bolding
if (style & BOLD)
{
if (this == LLFontGL::sSansSerif)
{
return LLFontGL::sSansSerifBold->render(
wstr, begin_offset,
x, y,
color,
halign, valign,
(style & ~BOLD),
max_chars, max_pixels,
right_x, use_embedded);
}
}
F32 drop_shadow_strength = 0.f;
if (style & (DROP_SHADOW | DROP_SHADOW_SOFT))
{
F32 luminance;
color.calcHSL(NULL, NULL, &luminance);
drop_shadow_strength = clamp_rescale(luminance, 0.35f, 0.6f, 0.f, 1.f);
if (luminance < 0.35f)
{
style = style & ~(DROP_SHADOW | DROP_SHADOW_SOFT);
}
}
gGL.pushMatrix();
glLoadIdentity();
gGL.translatef(floorf(sCurOrigin.mX*sScaleX), floorf(sCurOrigin.mY*sScaleY), sCurOrigin.mZ);
//glScalef(sScaleX, sScaleY, 1.0f);
// avoid half pixels
// RN: if we're going to this trouble, might as well snap to nearest pixel all the time
// but the plan is to get rid of this so that fonts "just work"
//F32 half_pixel_distance = llabs(fmodf(sCurOrigin.mX * sScaleX, 1.f) - 0.5f);
//if (half_pixel_distance < PIXEL_BORDER_THRESHOLD)
//{
gGL.translatef(PIXEL_CORRECTION_DISTANCE*sScaleX, 0.f, 0.f);
//}
// this code would just snap to pixel grid, although it seems to introduce more jitter
//F32 pixel_offset_x = llround(sCurOrigin.mX * sScaleX) - (sCurOrigin.mX * sScaleX);
//F32 pixel_offset_y = llround(sCurOrigin.mY * sScaleY) - (sCurOrigin.mY * sScaleY);
//gGL.translatef(-pixel_offset_x, -pixel_offset_y, 0.f);
// scale back to native pixel size
//glScalef(1.f / sScaleX, 1.f / sScaleY, 1.f);
//glScaled(1.0 / (F64) sScaleX, 1.0 / (F64) sScaleY, 1.0f);
LLFastTimer t(LLFastTimer::FTM_RENDER_FONTS);
gGL.color4fv( color.mV );
S32 chars_drawn = 0;
S32 i;
S32 length;
if (-1 == max_chars)
{
length = (S32)wstr.length() - begin_offset;
}
else
{
length = llmin((S32)wstr.length() - begin_offset, max_chars );
}
F32 cur_x, cur_y, cur_render_x, cur_render_y;
// Bind the font texture
mImageGLp->bind(0);
// Not guaranteed to be set correctly
gGL.setSceneBlendType(LLRender::BT_ALPHA);
cur_x = ((F32)x * sScaleX);
cur_y = ((F32)y * sScaleY);
// Offset y by vertical alignment.
switch (valign)
{
case TOP:
cur_y -= mAscender;
break;
case BOTTOM:
cur_y += mDescender;
break;
case VCENTER:
cur_y -= ((mAscender - mDescender)/2.f);
break;
case BASELINE:
// Baseline, do nothing.
break;
default:
break;
}
switch (halign)
{
case LEFT:
break;
case RIGHT:
cur_x -= llmin(scaled_max_pixels, llround(getWidthF32(wstr.c_str(), 0, length) * sScaleX));
break;
case HCENTER:
cur_x -= llmin(scaled_max_pixels, llround(getWidthF32(wstr.c_str(), 0, length) * sScaleX)) / 2;
break;
default:
break;
}
// Round properly.
//cur_render_y = (F32)llfloor(cur_y/sScaleY + 0.5f)*sScaleY;
//cur_render_x = (F32)llfloor(cur_x/sScaleX + 0.5f)*sScaleX;
cur_render_y = cur_y;
cur_render_x = cur_x;
F32 start_x = cur_x;
F32 inv_width = 1.f / mImageGLp->getWidth();
F32 inv_height = 1.f / mImageGLp->getHeight();
const S32 LAST_CHARACTER = LLFont::LAST_CHAR_FULL;
BOOL draw_ellipses = FALSE;
if (use_ellipses && halign == LEFT)
{
// check for too long of a string
if (getWidthF32(wstr.c_str(), 0, max_chars) * sScaleX > scaled_max_pixels)
{
// use four dots for ellipsis width to generate padding
const LLWString dots(utf8str_to_wstring(std::string("....")));
scaled_max_pixels = llmax(0, scaled_max_pixels - llround(getWidthF32(dots.c_str())));
draw_ellipses = TRUE;
}
}
for (i = begin_offset; i < begin_offset + length; i++)
{
llwchar wch = wstr[i];
// Handle embedded characters first, if they're enabled.
// Embedded characters are a hack for notecards
const embedded_data_t* ext_data = use_embedded ? getEmbeddedCharData(wch) : NULL;
if (ext_data)
{
LLImageGL* ext_image = ext_data->mImage;
const LLWString& label = ext_data->mLabel;
F32 ext_height = (F32)ext_image->getHeight() * sScaleY;
F32 ext_width = (F32)ext_image->getWidth() * sScaleX;
F32 ext_advance = (EXT_X_BEARING * sScaleX) + ext_width;
if (!label.empty())
{
ext_advance += (EXT_X_BEARING + gExtCharFont->getWidthF32( label.c_str() )) * sScaleX;
}
if (start_x + scaled_max_pixels < cur_x + ext_advance)
{
// Not enough room for this character.
break;
}
ext_image->bind();
const F32 ext_x = cur_render_x + (EXT_X_BEARING * sScaleX);
const F32 ext_y = cur_render_y + (EXT_Y_BEARING * sScaleY + mAscender - mLineHeight);
LLRectf uv_rect(0.f, 1.f, 1.f, 0.f);
LLRectf screen_rect(ext_x, ext_y + ext_height, ext_x + ext_width, ext_y);
drawGlyph(screen_rect, uv_rect, LLColor4::white, style, drop_shadow_strength);
if (!label.empty())
{
gGL.pushMatrix();
//glLoadIdentity();
//gGL.translatef(sCurOrigin.mX, sCurOrigin.mY, 0.0f);
//glScalef(sScaleX, sScaleY, 1.f);
gExtCharFont->render(label, 0,
/*llfloor*/((ext_x + (F32)ext_image->getWidth() + EXT_X_BEARING) / sScaleX),
/*llfloor*/(cur_y / sScaleY),
color,
halign, BASELINE, NORMAL, S32_MAX, S32_MAX, NULL,
TRUE );
gGL.popMatrix();
}
gGL.color4fv(color.mV);
chars_drawn++;
cur_x += ext_advance;
if (((i + 1) < length) && wstr[i+1])
{
cur_x += EXT_KERNING * sScaleX;
}
cur_render_x = cur_x;
// Bind the font texture
mImageGLp->bind();
}
else
{
if (!hasGlyph(wch))
{
(const_cast<LLFontGL*>(this))->addChar(wch);
}
const LLFontGlyphInfo* fgi= getGlyphInfo(wch);
if (!fgi)
{
llerrs << "Missing Glyph Info" << llendl;
break;
}
if ((start_x + scaled_max_pixels) < (cur_x + fgi->mXBearing + fgi->mWidth))
{
// Not enough room for this character.
break;
}
// Draw the text at the appropriate location
//Specify vertices and texture coordinates
LLRectf uv_rect((fgi->mXBitmapOffset - PAD_AMT) * inv_width,
(fgi->mYBitmapOffset + fgi->mHeight + PAD_AMT) * inv_height,
(fgi->mXBitmapOffset + fgi->mWidth + PAD_AMT) * inv_width,
(fgi->mYBitmapOffset - PAD_AMT) * inv_height);
LLRectf screen_rect(cur_render_x + (F32)fgi->mXBearing - PAD_AMT,
cur_render_y + (F32)fgi->mYBearing + PAD_AMT,
cur_render_x + (F32)fgi->mXBearing + (F32)fgi->mWidth + PAD_AMT,
cur_render_y + (F32)fgi->mYBearing - (F32)fgi->mHeight - PAD_AMT);
drawGlyph(screen_rect, uv_rect, color, style, drop_shadow_strength);
chars_drawn++;
cur_x += fgi->mXAdvance;
cur_y += fgi->mYAdvance;
llwchar next_char = wstr[i+1];
if (next_char && (next_char < LAST_CHARACTER))
{
// Kern this puppy.
if (!hasGlyph(next_char))
{
(const_cast<LLFontGL*>(this))->addChar(next_char);
}
cur_x += getXKerning(wch, next_char);
}
// Round after kerning.
// Must do this to cur_x, not just to cur_render_x, otherwise you
// will squish sub-pixel kerned characters too close together.
// For example, "CCCCC" looks bad.
cur_x = (F32)llfloor(cur_x + 0.5f);
//cur_y = (F32)llfloor(cur_y + 0.5f);
cur_render_x = cur_x;
cur_render_y = cur_y;
}
}
if (right_x)
{
*right_x = cur_x / sScaleX;
}
if (style & UNDERLINE)
{
LLGLSNoTexture no_texture;
gGL.begin(LLVertexBuffer::LINES);
gGL.vertex2f(start_x, cur_y - (mDescender));
gGL.vertex2f(cur_x, cur_y - (mDescender));
gGL.end();
}
// *FIX: get this working in all alignment cases, etc.
if (draw_ellipses)
{
// recursively render ellipses at end of string
// we've already reserved enough room
gGL.pushMatrix();
//glLoadIdentity();
//gGL.translatef(sCurOrigin.mX, sCurOrigin.mY, 0.0f);
//glScalef(sScaleX, sScaleY, 1.f);
renderUTF8(std::string("..."),
0,
cur_x / sScaleX, (F32)y,
color,
LEFT, valign,
style,
S32_MAX, max_pixels,
right_x,
FALSE);
gGL.popMatrix();
}
gGL.popMatrix();
return chars_drawn;
}
