//! returns the dimension of text
core::dimension2d<u32> CGUIFont::getDimension(const wchar_t* text) const
{
core::dimension2d<u32> dim(0, 0);
core::dimension2d<u32> thisLine(0, MaxHeight);
for (const wchar_t* p = text; *p; ++p)
{
bool lineBreak=false;
if (*p == L'\r') // Mac or Windows breaks
{
lineBreak = true;
if (p[1] == L'\n') // Windows breaks
++p;
}
else if (*p == L'\n') // Unix breaks
{
lineBreak = true;
}
if (lineBreak)
{
dim.Height += thisLine.Height;
if (dim.Width < thisLine.Width)
dim.Width = thisLine.Width;
thisLine.Width = 0;
continue;
}
const SFontArea &area = Areas[getAreaFromCharacter(*p)];
thisLine.Width += area.underhang;
thisLine.Width += area.width + area.overhang + GlobalKerningWidth;
}
dim.Height += thisLine.Height;
if (dim.Width < thisLine.Width)
dim.Width = thisLine.Width;
return dim;
}
//! draws some text and clips it to the specified rectangle if wanted
void CGUIFont::draw(const wchar_t* text, const core::rect<s32>& position, video::SColor color, bool hcenter, bool vcenter, const core::rect<s32>* clip)
{
if (!Driver)
return;
core::dimension2d<s32> textDimension;
core::position2d<s32> offset = position.UpperLeftCorner;
core::rect<s32> pos;
if (hcenter || vcenter || clip)
textDimension = getDimension(text);
if (hcenter)
offset.X = ((position.getWidth() - textDimension.Width)>>1) + offset.X;
if (vcenter)
offset.Y = ((position.getHeight() - textDimension.Height)>>1) + offset.Y;
if (clip)
{
core::rect<s32> clippedRect(offset, textDimension);
clippedRect.clipAgainst(*clip);
if (!clippedRect.isValid())
return;
}
while(*text)
{
SFontArea& area = Areas[getAreaFromCharacter(*text)];
offset.X += area.underhang;
SpriteBank->draw2DSprite(area.spriteno, offset, clip, color);
offset.X += area.width + area.overhang + GlobalKerningWidth;
++text;
}
}
// ----------------------------------------------------------------------------
int FontWithFace::getCharacterFromPos(const wchar_t* text, int pixel_x,
FontSettings* font_settings) const
{
const float scale = font_settings ? font_settings->getScale() : 1.0f;
float x = 0;
int idx = 0;
while (text[idx])
{
bool use_fallback_font = false;
const FontArea &a = getAreaFromCharacter(text[idx],
&use_fallback_font);
x += getCharWidth(a, use_fallback_font, scale);
if (x >= float(pixel_x))
return idx;
++idx;
}
return -1;
} // getCharacterFromPos
//! draws some text and clips it to the specified rectangle if wanted
void CGUIFont::draw(const core::stringw& text, const core::rect<s32>& position,
video::SColor color,
bool hcenter, bool vcenter, const core::rect<s32>* clip
)
{
if (!Driver)
return;
core::dimension2d<s32> textDimension; // NOTE: don't make this u32 or the >> later on can fail when the dimension width is < position width
core::position2d<s32> offset = position.UpperLeftCorner;
if (hcenter || vcenter || clip)
textDimension = getDimension(text.c_str());
if (hcenter)
offset.X += (position.getWidth() - textDimension.Width) >> 1;
if (vcenter)
offset.Y += (position.getHeight() - textDimension.Height) >> 1;
if (clip)
{
core::rect<s32> clippedRect(offset, textDimension);
clippedRect.clipAgainst(*clip);
if (!clippedRect.isValid())
return;
}
core::array<u32> indices(text.size());
core::array<core::position2di> offsets(text.size());
for(u32 i = 0; i < text.size(); i++)
{
wchar_t c = text[i];
bool lineBreak=false;
if ( c == L'\r') // Mac or Windows breaks
{
lineBreak = true;
if ( text[i + 1] == L'\n') // Windows breaks
c = text[++i];
}
else if ( c == L'\n') // Unix breaks
{
lineBreak = true;
}
if (lineBreak)
{
offset.Y += MaxHeight;
offset.X = position.UpperLeftCorner.X;
if ( hcenter )
{
offset.X += (position.getWidth() - textDimension.Width) >> 1;
}
continue;
}
SFontArea& area = Areas[getAreaFromCharacter(c)];
offset.X += area.underhang;
if ( Invisible.findFirst ( c ) < 0 )
{
indices.push_back(area.spriteno);
offsets.push_back(offset);
}
offset.X += area.width + area.overhang + GlobalKerningWidth;
}
SpriteBank->draw2DSpriteBatch(indices, offsets, clip, color);
}
//! returns the sprite number from a given character
u32 CGUIFont::getSpriteNoFromChar(const wchar_t *c) const
{
return Areas[getAreaFromCharacter(*c)].spriteno;
}
// ----------------------------------------------------------------------------
void FontWithFace::render(const core::stringw& text,
const core::rect<s32>& position,
const video::SColor& color, bool hcenter,
bool vcenter, const core::rect<s32>* clip,
FontSettings* font_settings,
FontCharCollector* char_collector)
{
const bool is_bold_face = dynamic_cast<BoldFace*>(this);
const bool black_border = font_settings ?
font_settings->useBlackBorder() : false;
const bool rtl = font_settings ? font_settings->isRTL() : false;
const float scale = font_settings ? font_settings->getScale() : 1.0f;
const float shadow = font_settings ? font_settings->useShadow() : false;
if (shadow)
{
assert(font_settings);
// Avoid infinite recursion
font_settings->setShadow(false);
core::rect<s32> shadowpos = position;
shadowpos.LowerRightCorner.X += 2;
shadowpos.LowerRightCorner.Y += 2;
render(text, shadowpos, font_settings->getShadowColor(), hcenter,
vcenter, clip, font_settings);
// Set back
font_settings->setShadow(true);
}
core::position2d<float> offset(float(position.UpperLeftCorner.X),
float(position.UpperLeftCorner.Y));
core::dimension2d<s32> text_dimension;
if (rtl || hcenter || vcenter || clip)
{
text_dimension = getDimension(text.c_str(), font_settings);
if (hcenter)
offset.X += (position.getWidth() - text_dimension.Width) / 2;
else if (rtl)
offset.X += (position.getWidth() - text_dimension.Width);
if (vcenter)
offset.Y += (position.getHeight() - text_dimension.Height) / 2;
if (clip)
{
core::rect<s32> clippedRect(core::position2d<s32>
(s32(offset.X), s32(offset.Y)), text_dimension);
clippedRect.clipAgainst(*clip);
if (!clippedRect.isValid()) return;
}
}
// Collect character locations
const unsigned int text_size = text.size();
core::array<s32> indices(text_size);
core::array<core::position2d<float>> offsets(text_size);
std::vector<bool> fallback(text_size);
// Test again if lazy load char is needed,
// as some text isn't drawn with getDimension
insertCharacters(text.c_str());
updateCharactersList();
for (u32 i = 0; i < text_size; i++)
{
wchar_t c = text[i];
if (c == L'\r' || // Windows breaks
c == L'\n' ) // Unix breaks
{
if (c==L'\r' && text[i+1]==L'\n')
c = text[++i];
offset.Y += m_font_max_height * scale;
offset.X = position.UpperLeftCorner.X;
if (hcenter)
offset.X += (position.getWidth() - text_dimension.Width) >> 1;
continue;
} // if lineBreak
bool use_fallback_font = false;
const FontArea &area = getAreaFromCharacter(c, &use_fallback_font);
fallback[i] = use_fallback_font;
if (char_collector == NULL)
{
float glyph_offset_x = area.bearing_x *
(fallback[i] ? m_fallback_font_scale : scale);
float glyph_offset_y = area.offset_y *
(fallback[i] ? m_fallback_font_scale : scale);
offset.X += glyph_offset_x;
offset.Y += glyph_offset_y;
offsets.push_back(offset);
offset.X -= glyph_offset_x;
offset.Y -= glyph_offset_y;
}
else
{
// Prevent overwriting texture used by billboard text when
// using lazy loading characters
if (supportLazyLoadChar() && fallback[i])
{
const int cur_texno = m_fallback_font->getSpriteBank()
->getSprites()[area.spriteno].Frames[0].textureNumber;
if (cur_texno == int(m_fallback_font->getSpriteBank()
->getTextureCount() - 1))
{
m_fallback_font->createNewGlyphPage();
}
}
else if (supportLazyLoadChar())
{
const int cur_texno = m_spritebank
->getSprites()[area.spriteno].Frames[0].textureNumber;
if (cur_texno == int(m_spritebank->getTextureCount() - 1))
{
createNewGlyphPage();
}
}
// Billboard text specific, use offset_y_bt instead
float glyph_offset_x = area.bearing_x *
(fallback[i] ? m_fallback_font_scale : scale);
float glyph_offset_y = area.offset_y_bt *
(fallback[i] ? m_fallback_font_scale : scale);
offset.X += glyph_offset_x;
offset.Y += glyph_offset_y;
offsets.push_back(offset);
offset.X -= glyph_offset_x;
offset.Y -= glyph_offset_y;
}
indices.push_back(area.spriteno);
offset.X += getCharWidth(area, fallback[i], scale);
} // for i < text_size
// Do the actual rendering
const int indice_amount = indices.size();
core::array<gui::SGUISprite>& sprites = m_spritebank->getSprites();
core::array<core::rect<s32>>& positions = m_spritebank->getPositions();
core::array<gui::SGUISprite>* fallback_sprites;
core::array<core::rect<s32>>* fallback_positions;
if (m_fallback_font != NULL)
{
fallback_sprites = &m_fallback_font->m_spritebank->getSprites();
fallback_positions = &m_fallback_font->m_spritebank->getPositions();
}
else
{
fallback_sprites = NULL;
fallback_positions = NULL;
}
const int sprite_amount = sprites.size();
if ((black_border || is_bold_face) && char_collector == NULL)
{
// Draw black border first, to make it behind the real character
// which make script language display better
video::SColor black(color.getAlpha(),0,0,0);
for (int n = 0; n < indice_amount; n++)
{
const int sprite_id = indices[n];
if (!fallback[n] && (sprite_id < 0 || sprite_id >= sprite_amount))
continue;
if (indices[n] == -1) continue;
const int tex_id = (fallback[n] ?
(*fallback_sprites)[sprite_id].Frames[0].textureNumber :
sprites[sprite_id].Frames[0].textureNumber);
core::rect<s32> source = (fallback[n] ? (*fallback_positions)
[(*fallback_sprites)[sprite_id].Frames[0].rectNumber] :
positions[sprites[sprite_id].Frames[0].rectNumber]);
core::dimension2d<float> size(0.0f, 0.0f);
float cur_scale = (fallback[n] ? m_fallback_font_scale : scale);
size.Width = source.getSize().Width * cur_scale;
size.Height = source.getSize().Height * cur_scale;
core::rect<float> dest(offsets[n], size);
video::ITexture* texture = (fallback[n] ?
m_fallback_font->m_spritebank->getTexture(tex_id) :
m_spritebank->getTexture(tex_id));
for (int x_delta = -2; x_delta <= 2; x_delta++)
{
for (int y_delta = -2; y_delta <= 2; y_delta++)
{
if (x_delta == 0 || y_delta == 0) continue;
draw2DImage(texture, dest + core::position2d<float>
(float(x_delta), float(y_delta)), source, clip,
black, true);
}
}
}
}
for (int n = 0; n < indice_amount; n++)
{
const int sprite_id = indices[n];
if (!fallback[n] && (sprite_id < 0 || sprite_id >= sprite_amount))
continue;
if (indices[n] == -1) continue;
const int tex_id = (fallback[n] ?
(*fallback_sprites)[sprite_id].Frames[0].textureNumber :
sprites[sprite_id].Frames[0].textureNumber);
core::rect<s32> source = (fallback[n] ?
(*fallback_positions)[(*fallback_sprites)[sprite_id].Frames[0]
.rectNumber] : positions[sprites[sprite_id].Frames[0].rectNumber]);
core::dimension2d<float> size(0.0f, 0.0f);
float cur_scale = (fallback[n] ? m_fallback_font_scale : scale);
size.Width = source.getSize().Width * cur_scale;
size.Height = source.getSize().Height * cur_scale;
core::rect<float> dest(offsets[n], size);
video::ITexture* texture = (fallback[n] ?
m_fallback_font->m_spritebank->getTexture(tex_id) :
m_spritebank->getTexture(tex_id));
if (fallback[n] || is_bold_face)
{
video::SColor top = GUIEngine::getSkin()->getColor("font::top");
video::SColor bottom = GUIEngine::getSkin()
->getColor("font::bottom");
top.setAlpha(color.getAlpha());
bottom.setAlpha(color.getAlpha());
video::SColor title_colors[] = {top, bottom, top, bottom};
if (char_collector != NULL)
{
char_collector->collectChar(texture, dest, source,
title_colors);
}
else
{
draw2DImage(texture, dest, source, clip, title_colors, true);
}
}
else
{
if (char_collector != NULL)
{
video::SColor colors[] = {color, color, color, color};
char_collector->collectChar(texture, dest, source, colors);
}
else
{
draw2DImage(texture, dest, source, clip, color, true);
}
}
}
} // render
//! draws some text and clips it to the specified rectangle if wanted
void ScalableFont::doDraw(const core::stringw& text,
const core::rect<s32>& position, video::SColor color,
bool hcenter, bool vcenter,
const core::rect<s32>* clip,
FontCharCollector* charCollector)
{
if (!Driver) return;
if (m_shadow)
{
m_shadow = false; // avoid infinite recursion
core::rect<s32> shadowpos = position;
shadowpos.LowerRightCorner.X += 2;
shadowpos.LowerRightCorner.Y += 2;
draw(text, shadowpos, m_shadow_color, hcenter, vcenter, clip);
m_shadow = true; // set back
}
core::position2d<s32> offset = position.UpperLeftCorner;
core::dimension2d<s32> text_dimension;
if (m_rtl || hcenter || vcenter || clip)
{
text_dimension = getDimension(text.c_str());
if (hcenter) offset.X += (position.getWidth() - text_dimension.Width) / 2;
else if (m_rtl) offset.X += (position.getWidth() - text_dimension.Width);
if (vcenter) offset.Y += (position.getHeight() - text_dimension.Height) / 2;
if (clip)
{
core::rect<s32> clippedRect(offset, text_dimension);
clippedRect.clipAgainst(*clip);
if (!clippedRect.isValid()) return;
}
}
// ---- collect character locations
const unsigned int text_size = text.size();
core::array<s32> indices(text_size);
core::array<core::position2di> offsets(text_size);
std::vector<bool> fallback(text_size);
for (u32 i = 0; i<text_size; i++)
{
wchar_t c = text[i];
if (c == L'\r' || // Windows breaks
c == L'\n' ) // Unix breaks
{
if(c==L'\r' && text[i+1]==L'\n') c = text[++i];
offset.Y += (int)(MaxHeight*m_scale);
offset.X = position.UpperLeftCorner.X;
if (hcenter)
offset.X += (position.getWidth() - text_dimension.Width) >> 1;
continue;
} // if lineBreak
bool use_fallback_font = false;
const SFontArea &area = getAreaFromCharacter(c, &use_fallback_font);
fallback[i] = use_fallback_font;
offset.X += area.underhang;
offsets.push_back(offset);
// Invisible character. add something to the array anyway so that
// indices from the various arrays remain in sync
indices.push_back( Invisible.findFirst(c) < 0 ? area.spriteno
: -1 );
offset.X += getCharWidth(area, fallback[i]);
} // for i<text_size
// ---- do the actual rendering
const int indiceAmount = indices.size();
core::array< SGUISprite >& sprites = SpriteBank->getSprites();
core::array< core::rect<s32> >& positions = SpriteBank->getPositions();
core::array< SGUISprite >* fallback_sprites;
core::array< core::rect<s32> >* fallback_positions;
if(m_fallback_font!=NULL)
{
fallback_sprites = &m_fallback_font->SpriteBank->getSprites();
fallback_positions = &m_fallback_font->SpriteBank->getPositions();
}
else
{
fallback_sprites = NULL;
fallback_positions = NULL;
}
const int spriteAmount = sprites.size();
for (int n=0; n<indiceAmount; n++)
{
const int spriteID = indices[n];
if (!fallback[n] && (spriteID < 0 || spriteID >= spriteAmount)) continue;
if (indices[n] == -1) continue;
//assert(sprites[spriteID].Frames.size() > 0);
const int texID = (fallback[n] ?
(*fallback_sprites)[spriteID].Frames[0].textureNumber :
sprites[spriteID].Frames[0].textureNumber);
core::rect<s32> source = (fallback[n] ?
(*fallback_positions)[(*fallback_sprites)[spriteID].Frames[0].rectNumber] :
positions[sprites[spriteID].Frames[0].rectNumber]);
const TextureInfo& info = (fallback[n] ?
(*(m_fallback_font->m_texture_files.find(texID))).second :
(*(m_texture_files.find(texID))).second
);
float char_scale = info.m_scale;
core::dimension2d<s32> size = source.getSize();
float scale = (fallback[n] ? m_scale*m_fallback_font_scale : m_scale);
size.Width = (int)(size.Width * scale * char_scale);
size.Height = (int)(size.Height * scale * char_scale);
// align vertically if character is smaller
int y_shift = (size.Height < MaxHeight*m_scale ? (int)((MaxHeight*m_scale - size.Height)/2.0f) : 0);
core::rect<s32> dest(offsets[n] + core::position2di(0, y_shift), size);
video::ITexture* texture = (fallback[n] ?
m_fallback_font->SpriteBank->getTexture(texID) :
SpriteBank->getTexture(texID) );
/*
if (fallback[n])
{
Log::info("ScalableFont", "Using fallback font %s; source area is %d, %d; size %d, %d; dest = %d, %d",
core::stringc(texture->getName()).c_str(), source.UpperLeftCorner.X, source.UpperLeftCorner.Y,
source.getWidth(), source.getHeight(), offsets[n].X, offsets[n].Y);
}
*/
if (texture == NULL)
{
// perform lazy loading
if (fallback[n])
{
m_fallback_font->lazyLoadTexture(texID);
texture = m_fallback_font->SpriteBank->getTexture(texID);
}
else
{
lazyLoadTexture(texID);
texture = SpriteBank->getTexture(texID);
}
if (texture == NULL)
{
Log::warn("ScalableFont", "Character not found in current font");
continue; // no such character
}
}
if (m_black_border && charCollector == NULL)
{
// draw black border
video::SColor black(color.getAlpha(),0,0,0);
for (int x_delta=-2; x_delta<=2; x_delta++)
{
for (int y_delta=-2; y_delta<=2; y_delta++)
{
if (x_delta == 0 || y_delta == 0) continue;
draw2DImage(texture,
dest + core::position2d<s32>(x_delta, y_delta),
source,
clip,
black, true);
}
}
}
if (fallback[n])
{
// TODO: don't hardcode colors?
video::SColor orange(color.getAlpha(), 255, 100, 0);
video::SColor yellow(color.getAlpha(), 255, 220, 15);
video::SColor title_colors[] = {orange, yellow, orange, yellow};
if (charCollector != NULL)
{
charCollector->collectChar(texture,
dest,
source,
title_colors);
}
else
{
draw2DImage(texture,
dest,
source,
clip,
title_colors, true);
}
}
else
{
if (charCollector != NULL)
{
video::SColor colors[] = { color, color, color, color };
charCollector->collectChar(texture,
dest,
source,
colors);
}
else
{
draw2DImage(texture,
dest,
source,
clip,
color, true);
}
#ifdef FONT_DEBUG
video::IVideoDriver* driver = GUIEngine::getDriver();
driver->draw2DLine(core::position2d<s32>(dest.UpperLeftCorner.X, dest.UpperLeftCorner.Y),
core::position2d<s32>(dest.UpperLeftCorner.X, dest.LowerRightCorner.Y),
video::SColor(255, 255,0,0));
driver->draw2DLine(core::position2d<s32>(dest.LowerRightCorner.X, dest.LowerRightCorner.Y),
core::position2d<s32>(dest.LowerRightCorner.X, dest.UpperLeftCorner.Y),
video::SColor(255, 255,0,0));
driver->draw2DLine(core::position2d<s32>(dest.LowerRightCorner.X, dest.LowerRightCorner.Y),
core::position2d<s32>(dest.UpperLeftCorner.X, dest.LowerRightCorner.Y),
video::SColor(255, 255,0,0));
driver->draw2DLine(core::position2d<s32>(dest.UpperLeftCorner.X, dest.UpperLeftCorner.Y),
core::position2d<s32>(dest.LowerRightCorner.X, dest.UpperLeftCorner.Y),
video::SColor(255, 255,0,0));
#endif
}
}
}
