void Text::UpdateCharLocations() { // Remember the font face to see if it's still valid when it's time to render FontFace* face = font_ ? font_->GetFace(fontSize_) : nullptr; if (!face) return; fontFace_ = face; auto rowHeight = RoundToInt(rowSpacing_ * rowHeight_); // Store position & size of each character, and locations per texture page unsigned numChars = unicodeText_.size(); charLocations_.resize(numChars + 1); pageGlyphLocations_.resize(face->GetTextures().size()); for (unsigned i = 0; i < pageGlyphLocations_.size(); ++i) pageGlyphLocations_[i].clear(); IntVector2 offset = font_->GetTotalGlyphOffset(fontSize_); unsigned rowIndex = 0; unsigned lastFilled = 0; float x = Round(GetRowStartPosition(rowIndex) + offset.x_); float y = Round(offset.y_); for (unsigned i = 0; i < printText_.size(); ++i) { CharLocation loc; loc.position_ = Vector2(x, y); unsigned c = printText_[i]; if (c != '\n') { const FontGlyph* glyph = face->GetGlyph(c); loc.size_ = Vector2(glyph ? glyph->advanceX_ : 0, rowHeight_); if (glyph) { // Store glyph's location for rendering. Verify that glyph page is valid if (glyph->page_ < pageGlyphLocations_.size()) pageGlyphLocations_[glyph->page_].push_back(GlyphLocation(x, y, glyph)); x += glyph->advanceX_; if (i < printText_.size() - 1) x += face->GetKerning(c, printText_[i + 1]); } } else { loc.size_ = Vector2::ZERO; x = GetRowStartPosition(++rowIndex); y += rowHeight; } if (lastFilled > printToText_[i]) lastFilled = printToText_[i]; // Fill gaps in case characters were skipped from printing for (unsigned j = lastFilled; j <= printToText_[i]; ++j) charLocations_[j] = loc; lastFilled = printToText_[i] + 1; } // Store the ending position charLocations_[numChars].position_ = Vector2(x, y); charLocations_[numChars].size_ = Vector2::ZERO; charLocationsDirty_ = false; }
void Text::GetBatches(PODVector<UIBatch>& batches, PODVector<float>& vertexData, const IntRect& currentScissor) { // Hovering and/or whole selection batch if ((hovering_ && hoverColor_.a_ > 0.0) || (selected_ && selectionColor_.a_ > 0.0f)) { bool both = hovering_ && selected_ && hoverColor_.a_ > 0.0 && selectionColor_.a_ > 0.0f; UIBatch batch(this, BLEND_ALPHA, currentScissor, 0, &vertexData); batch.AddQuad(0, 0, GetWidth(), GetHeight(), 0, 0, 0, 0, both ? selectionColor_.Lerp(hoverColor_, 0.5f) : (selected_ && selectionColor_.a_ > 0.0f ? selectionColor_ : hoverColor_)); UIBatch::AddOrMerge(batch, batches); } // Partial selection batch if (!selected_ && selectionLength_ && charSizes_.Size() >= selectionStart_ + selectionLength_ && selectionColor_.a_ > 0.0f) { UIBatch batch(this, BLEND_ALPHA, currentScissor, 0, &vertexData); IntVector2 currentStart = charPositions_[selectionStart_]; IntVector2 currentEnd = currentStart; for (unsigned i = selectionStart_; i < selectionStart_ + selectionLength_; ++i) { // Check if row changes, and start a new quad in that case if (charSizes_[i].x_ && charSizes_[i].y_) { if (charPositions_[i].y_ != currentStart.y_) { batch.AddQuad(currentStart.x_, currentStart.y_, currentEnd.x_ - currentStart.x_, currentEnd.y_ - currentStart.y_, 0, 0, 0, 0, selectionColor_); currentStart = charPositions_[i]; currentEnd = currentStart + charSizes_[i]; } else { currentEnd.x_ += charSizes_[i].x_; currentEnd.y_ = Max(currentStart.y_ + charSizes_[i].y_, currentEnd.y_); } } } if (currentEnd != currentStart) { batch.AddQuad(currentStart.x_, currentStart.y_, currentEnd.x_ - currentStart.x_, currentEnd.y_ - currentStart.y_, 0, 0, 0, 0, selectionColor_); } UIBatch::AddOrMerge(batch, batches); } // Text batch if (font_) { const FontFace* face = font_->GetFace(fontSize_); if (!face) return; if (face->textures_.Size() > 1) { // Only traversing thru the printText once regardless of number of textures/pages in the font Vector<PODVector<GlyphLocation> > pageGlyphLocations(face->textures_.Size()); unsigned rowIndex = 0; int x = GetRowStartPosition(rowIndex); int y = 0; for (unsigned i = 0; i < printText_.Size(); ++i) { unsigned c = printText_[i]; if (c != '\n') { const FontGlyph* p = face->GetGlyph(c); if (!p) continue; pageGlyphLocations[p->page_].Push(GlyphLocation(x, y, p)); x += p->advanceX_; if (i < printText_.Size() - 1) x += face->GetKerning(c, printText_[i + 1]); } else { x = GetRowStartPosition(++rowIndex); y += rowHeight_; } } for (unsigned n = 0; n < face->textures_.Size(); ++n) { // One batch per texture/page UIBatch pageBatch(this, BLEND_ALPHA, currentScissor, face->textures_[n], &vertexData); const PODVector<GlyphLocation>& pageGlyphLocation = pageGlyphLocations[n]; for (unsigned i = 0; i < pageGlyphLocation.Size(); ++i) { const GlyphLocation& glyphLocation = pageGlyphLocation[i]; const FontGlyph& glyph = *glyphLocation.glyph_; pageBatch.AddQuad(glyphLocation.x_ + glyph.offsetX_, glyphLocation.y_ + glyph.offsetY_, glyph.width_, glyph.height_, glyph.x_, glyph.y_); } batches.Push(pageBatch); } } else { // If only one texture page, construct the UI batch directly unsigned rowIndex = 0; int x = GetRowStartPosition(rowIndex); int y = 0; UIBatch batch(this, BLEND_ALPHA, currentScissor, face->textures_[0], &vertexData); for (unsigned i = 0; i < printText_.Size(); ++i) { unsigned c = printText_[i]; if (c != '\n') { const FontGlyph* p = face->GetGlyph(c); if (!p) continue; batch.AddQuad(x + p->offsetX_, y + p->offsetY_, p->width_, p->height_, p->x_, p->y_); x += p->advanceX_; if (i < printText_.Size() - 1) x += face->GetKerning(c, printText_[i + 1]); } else { x = GetRowStartPosition(++rowIndex); y += rowHeight_; } } UIBatch::AddOrMerge(batch, batches); } } // Reset hovering for next frame hovering_ = false; }
void Text::UpdateText() { int width = 0; int height = 0; rowWidths_.Clear(); printText_.Clear(); PODVector<unsigned> printToText; if (font_) { const FontFace* face = font_->GetFace(fontSize_); if (!face) return; rowHeight_ = face->rowHeight_; int rowWidth = 0; int rowHeight = (int)(rowSpacing_ * rowHeight_); // First see if the text must be split up if (!wordWrap_) { printText_ = unicodeText_; printToText.Resize(printText_.Size()); for (unsigned i = 0; i < printText_.Size(); ++i) printToText[i] = i; } else { int maxWidth = GetWidth(); unsigned nextBreak = 0; unsigned lineStart = 0; for (unsigned i = 0; i < unicodeText_.Size(); ++i) { unsigned j; unsigned c = unicodeText_[i]; if (c != '\n') { bool ok = true; if (nextBreak <= i) { int futureRowWidth = rowWidth; for (j = i; j < unicodeText_.Size(); ++j) { unsigned d = unicodeText_[j]; if (d == ' ' || d == '\n') { nextBreak = j; break; } const FontGlyph* glyph = face->GetGlyph(d); if (glyph) { futureRowWidth += glyph->advanceX_; if (j < unicodeText_.Size() - 1) futureRowWidth += face->GetKerning(d, unicodeText_[j + 1]); } if (d == '-' && futureRowWidth <= maxWidth) { nextBreak = j + 1; break; } if (futureRowWidth > maxWidth) { ok = false; break; } } } if (!ok) { // If did not find any breaks on the line, copy until j, or at least 1 char, to prevent infinite loop if (nextBreak == lineStart) { while (i < j) { printText_.Push(unicodeText_[i]); printToText.Push(i); ++i; } } printText_.Push('\n'); printToText.Push(Min((int)i, (int)unicodeText_.Size() - 1)); rowWidth = 0; nextBreak = lineStart = i; } if (i < unicodeText_.Size()) { // When copying a space, position is allowed to be over row width c = unicodeText_[i]; const FontGlyph* glyph = face->GetGlyph(c); if (glyph) { rowWidth += glyph->advanceX_; if (i < text_.Length() - 1) rowWidth += face->GetKerning(c, unicodeText_[i + 1]); } if (rowWidth <= maxWidth) { printText_.Push(c); printToText.Push(i); } } } else { printText_.Push('\n'); printToText.Push(Min((int)i, (int)unicodeText_.Size() - 1)); rowWidth = 0; nextBreak = lineStart = i; } } } rowWidth = 0; for (unsigned i = 0; i < printText_.Size(); ++i) { unsigned c = printText_[i]; if (c != '\n') { const FontGlyph* glyph = face->GetGlyph(c); if (glyph) { rowWidth += glyph->advanceX_; if (i < printText_.Size() - 1) rowWidth += face->GetKerning(c, printText_[i + 1]); } } else { width = Max(width, rowWidth); height += rowHeight; rowWidths_.Push(rowWidth); rowWidth = 0; } } if (rowWidth) { width = Max(width, rowWidth); height += rowHeight; rowWidths_.Push(rowWidth); } // Set row height even if text is empty if (!height) height = rowHeight; // Store position & size of each character charPositions_.Resize(unicodeText_.Size() + 1); charSizes_.Resize(unicodeText_.Size()); unsigned rowIndex = 0; int x = GetRowStartPosition(rowIndex); int y = 0; for (unsigned i = 0; i < printText_.Size(); ++i) { charPositions_[printToText[i]] = IntVector2(x, y); unsigned c = printText_[i]; if (c != '\n') { const FontGlyph* glyph = face->GetGlyph(c); charSizes_[printToText[i]] = IntVector2(glyph ? glyph->advanceX_ : 0, rowHeight_); if (glyph) { x += glyph->advanceX_; if (i < printText_.Size() - 1) x += face->GetKerning(c, printText_[i + 1]); } } else { charSizes_[printToText[i]] = IntVector2::ZERO; x = GetRowStartPosition(++rowIndex); y += rowHeight; } } // Store the ending position charPositions_[unicodeText_.Size()] = IntVector2(x, y); } // Set minimum and current size according to the text size, but respect fixed width if set if (!IsFixedWidth()) { SetMinWidth(wordWrap_ ? 0 : width); SetWidth(width); } SetFixedHeight(height); }
void Text::GetBatches(PODVector<UIBatch>& batches, PODVector<UIQuad>& quads, const IntRect& currentScissor) { // Hovering or whole selection batch if ((hovering_ && hoverColor_.a_ > 0.0) || (selected_ && selectionColor_.a_ > 0.0f)) { UIBatch batch(BLEND_ALPHA, currentScissor, 0, &quads); batch.AddQuad(*this, 0, 0, GetWidth(), GetHeight(), 0, 0, 0, 0, selected_ && selectionColor_.a_ > 0.0f ? selectionColor_ : hoverColor_); UIBatch::AddOrMerge(batch, batches); } // Partial selection batch if (!selected_ && selectionLength_ && charSizes_.Size() >= selectionStart_ + selectionLength_ && selectionColor_.a_ > 0.0f) { UIBatch batch(BLEND_ALPHA, currentScissor, 0, &quads); IntVector2 currentStart = charPositions_[selectionStart_]; IntVector2 currentEnd = currentStart; for (unsigned i = selectionStart_; i < selectionStart_ + selectionLength_; ++i) { // Check if row changes, and start a new quad in that case if (charSizes_[i].x_ && charSizes_[i].y_) { if (charPositions_[i].y_ != currentStart.y_) { batch.AddQuad(*this, currentStart.x_, currentStart.y_, currentEnd.x_ - currentStart.x_, currentEnd.y_ - currentStart.y_, 0, 0, 0, 0, selectionColor_); currentStart = charPositions_[i]; currentEnd = currentStart + charSizes_[i]; } else { currentEnd.x_ += charSizes_[i].x_; currentEnd.y_ = Max(currentStart.y_ + charSizes_[i].y_, currentEnd.y_); } } } if (currentEnd != currentStart) { batch.AddQuad(*this, currentStart.x_, currentStart.y_, currentEnd.x_ - currentStart.x_, currentEnd.y_ - currentStart.y_, 0, 0, 0, 0, selectionColor_); } UIBatch::AddOrMerge(batch, batches); } // Text batch if (font_) { const FontFace* face = font_->GetFace(fontSize_); if (!face) return; UIBatch batch(BLEND_ALPHA, currentScissor, face->texture_, &quads); unsigned rowIndex = 0; int x = GetRowStartPosition(rowIndex); int y = 0; for (unsigned i = 0; i < printText_.Size(); ++i) { unsigned c = printText_[i]; if (c != '\n') { const FontGlyph& glyph = face->GetGlyph(c); if (c != ' ') batch.AddQuad(*this, x + glyph.offsetX_, y + glyph.offsetY_, glyph.width_, glyph.height_, glyph.x_, glyph.y_); x += glyph.advanceX_; if (i < printText_.Size() - 1) x += face->GetKerning(c, printText_[i + 1]); } else { x = GetRowStartPosition(++rowIndex); y += rowHeight_; } } UIBatch::AddOrMerge(batch, batches); } // Reset hovering for next frame hovering_ = false; }