//============================================================================== void Graphics::drawSingleLineText (const String& text, const int startX, const int baselineY, const Justification& justification) const { if (text.isNotEmpty() && startX < context.getClipBounds().getRight()) { GlyphArrangement arr; arr.addLineOfText (context.getFont(), text, (float) startX, (float) baselineY); // Don't pass any vertical placement flags to this method - they'll be ignored. jassert (justification.getOnlyVerticalFlags() == 0); const int flags = justification.getOnlyHorizontalFlags(); if (flags != Justification::left) { float w = arr.getBoundingBox (0, -1, true).getWidth(); if ((flags & (Justification::horizontallyCentred | Justification::horizontallyJustified)) != 0) w /= 2.0f; arr.draw (*this, AffineTransform::translation (-w, 0)); } else { arr.draw (*this); } } }
void FilterChart::drawText (Graphics &g, const Point<int> ptOrigin, const String text, Justification just) { const Font& font = g.getCurrentFont(); const int w = font.getStringWidth(text); int x, y; if (just.getOnlyHorizontalFlags() & Justification::right) x = ptOrigin.getX() - w; else x = ptOrigin.getX(); if (just.getOnlyVerticalFlags() & Justification::top) y = int (ptOrigin.getY() + font.getAscent() + 0.5); else y = ptOrigin.getY(); g.drawSingleLineText (text, x, y); }
void GlyphArrangement::splitLines (const String& text, Font font, int startIndex, float x, float y, float width, float height, int maximumLines, float lineWidth, Justification layout, float minimumHorizontalScale) { const int length = text.length(); const int originalStartIndex = startIndex; int numLines = 1; if (length <= 12 && ! text.containsAnyOf (" -\t\r\n")) maximumLines = 1; maximumLines = jmin (maximumLines, length); while (numLines < maximumLines) { ++numLines; const float newFontHeight = height / (float) numLines; if (newFontHeight < font.getHeight()) { font.setHeight (jmax (8.0f, newFontHeight)); removeRangeOfGlyphs (startIndex, -1); addLineOfText (font, text, x, y); lineWidth = glyphs.getReference (glyphs.size() - 1).getRight() - glyphs.getReference (startIndex).getLeft(); } // Try to estimate the point at which there are enough lines to fit the text, // allowing for unevenness in the lengths due to differently sized words. const float lineLengthUnevennessAllowance = 80.0f; if (numLines > (lineWidth + lineLengthUnevennessAllowance) / width || newFontHeight < 8.0f) break; } if (numLines < 1) numLines = 1; float lineY = y; float widthPerLine = lineWidth / numLines; for (int line = 0; line < numLines; ++line) { int i = startIndex; float lineStartX = glyphs.getReference (startIndex).getLeft(); if (line == numLines - 1) { widthPerLine = width; i = glyphs.size(); } else { while (i < glyphs.size()) { lineWidth = (glyphs.getReference (i).getRight() - lineStartX); if (lineWidth > widthPerLine) { // got to a point where the line's too long, so skip forward to find a // good place to break it.. const int searchStartIndex = i; while (i < glyphs.size()) { if ((glyphs.getReference (i).getRight() - lineStartX) * minimumHorizontalScale < width) { if (glyphs.getReference (i).isWhitespace() || glyphs.getReference (i).getCharacter() == '-') { ++i; break; } } else { // can't find a suitable break, so try looking backwards.. i = searchStartIndex; for (int back = 1; back < jmin (7, i - startIndex - 1); ++back) { if (glyphs.getReference (i - back).isWhitespace() || glyphs.getReference (i - back).getCharacter() == '-') { i -= back - 1; break; } } break; } ++i; } break; } ++i; } int wsStart = i; while (wsStart > 0 && glyphs.getReference (wsStart - 1).isWhitespace()) --wsStart; int wsEnd = i; while (wsEnd < glyphs.size() && glyphs.getReference (wsEnd).isWhitespace()) ++wsEnd; removeRangeOfGlyphs (wsStart, wsEnd - wsStart); i = jmax (wsStart, startIndex + 1); } i -= fitLineIntoSpace (startIndex, i - startIndex, x, lineY, width, font.getHeight(), font, layout.getOnlyHorizontalFlags() | Justification::verticallyCentred, minimumHorizontalScale); startIndex = i; lineY += font.getHeight(); if (startIndex >= glyphs.size()) break; } justifyGlyphs (originalStartIndex, glyphs.size() - originalStartIndex, x, y, width, height, layout.getFlags() & ~Justification::horizontallyJustified); }
void GlyphArrangement::addFittedText (const Font& f, const String& text, const float x, const float y, const float width, const float height, const Justification& layout, int maximumLines, const float minimumHorizontalScale) { // doesn't make much sense if this is outside a sensible range of 0.5 to 1.0 jassert (minimumHorizontalScale > 0 && minimumHorizontalScale <= 1.0f); if (text.containsAnyOf ("\r\n")) { GlyphArrangement ga; ga.addJustifiedText (f, text, x, y, width, layout); const Rectangle<float> bb (ga.getBoundingBox (0, -1, false)); float dy = y - bb.getY(); if (layout.testFlags (Justification::verticallyCentred)) dy += (height - bb.getHeight()) * 0.5f; else if (layout.testFlags (Justification::bottom)) dy += height - bb.getHeight(); ga.moveRangeOfGlyphs (0, -1, 0.0f, dy); glyphs.ensureStorageAllocated (glyphs.size() + ga.glyphs.size()); for (int i = 0; i < ga.glyphs.size(); ++i) glyphs.add (ga.glyphs.getUnchecked (i)); ga.glyphs.clear (false); return; } int startIndex = glyphs.size(); addLineOfText (f, text.trim(), x, y); if (glyphs.size() > startIndex) { float lineWidth = glyphs.getUnchecked (glyphs.size() - 1)->getRight() - glyphs.getUnchecked (startIndex)->getLeft(); if (lineWidth <= 0) return; if (lineWidth * minimumHorizontalScale < width) { if (lineWidth > width) stretchRangeOfGlyphs (startIndex, glyphs.size() - startIndex, width / lineWidth); justifyGlyphs (startIndex, glyphs.size() - startIndex, x, y, width, height, layout); } else if (maximumLines <= 1) { fitLineIntoSpace (startIndex, glyphs.size() - startIndex, x, y, width, height, f, layout, minimumHorizontalScale); } else { Font font (f); String txt (text.trim()); const int length = txt.length(); const int originalStartIndex = startIndex; int numLines = 1; if (length <= 12 && ! txt.containsAnyOf (" -\t\r\n")) maximumLines = 1; maximumLines = jmin (maximumLines, length); while (numLines < maximumLines) { ++numLines; const float newFontHeight = height / (float) numLines; if (newFontHeight < font.getHeight()) { font.setHeight (jmax (8.0f, newFontHeight)); removeRangeOfGlyphs (startIndex, -1); addLineOfText (font, txt, x, y); lineWidth = glyphs.getUnchecked (glyphs.size() - 1)->getRight() - glyphs.getUnchecked (startIndex)->getLeft(); } if (numLines > lineWidth / width || newFontHeight < 8.0f) break; } if (numLines < 1) numLines = 1; float lineY = y; float widthPerLine = lineWidth / numLines; int lastLineStartIndex = 0; for (int line = 0; line < numLines; ++line) { int i = startIndex; lastLineStartIndex = i; float lineStartX = glyphs.getUnchecked (startIndex)->getLeft(); if (line == numLines - 1) { widthPerLine = width; i = glyphs.size(); } else { while (i < glyphs.size()) { lineWidth = (glyphs.getUnchecked (i)->getRight() - lineStartX); if (lineWidth > widthPerLine) { // got to a point where the line's too long, so skip forward to find a // good place to break it.. const int searchStartIndex = i; while (i < glyphs.size()) { if ((glyphs.getUnchecked (i)->getRight() - lineStartX) * minimumHorizontalScale < width) { if (glyphs.getUnchecked (i)->isWhitespace() || glyphs.getUnchecked (i)->getCharacter() == '-') { ++i; break; } } else { // can't find a suitable break, so try looking backwards.. i = searchStartIndex; for (int back = 1; back < jmin (5, i - startIndex - 1); ++back) { if (glyphs.getUnchecked (i - back)->isWhitespace() || glyphs.getUnchecked (i - back)->getCharacter() == '-') { i -= back - 1; break; } } break; } ++i; } break; } ++i; } int wsStart = i; while (wsStart > 0 && glyphs.getUnchecked (wsStart - 1)->isWhitespace()) --wsStart; int wsEnd = i; while (wsEnd < glyphs.size() && glyphs.getUnchecked (wsEnd)->isWhitespace()) ++wsEnd; removeRangeOfGlyphs (wsStart, wsEnd - wsStart); i = jmax (wsStart, startIndex + 1); } i -= fitLineIntoSpace (startIndex, i - startIndex, x, lineY, width, font.getHeight(), font, layout.getOnlyHorizontalFlags() | Justification::verticallyCentred, minimumHorizontalScale); startIndex = i; lineY += font.getHeight(); if (startIndex >= glyphs.size()) break; } justifyGlyphs (originalStartIndex, glyphs.size() - originalStartIndex, x, y, width, height, layout.getFlags() & ~Justification::horizontallyJustified); } } }