Adjusting font sizes.

This commit is contained in:
Andrzej Kapolka 2014-09-08 15:11:25 -07:00
parent 57bdc410a5
commit 5dfa22f3fd

View file

@ -40,14 +40,6 @@ TextRenderer::TextRenderer(const char* family, int pointSize, int weight, bool i
_color(color) {
_font.setKerning(false);
// double the font size for "Retina" displays
float ratio = QApplication::desktop()->windowHandle()->devicePixelRatio();
if (ratio != 1.0f && false) {
_font.setPointSize(_font.pointSize() * ratio);
_metrics = QFontMetrics(_font);
_effectThickness *= ratio;
}
}
TextRenderer::~TextRenderer() {
@ -91,7 +83,7 @@ int TextRenderer::draw(int x, int y, const char* str) {
int bottom = y + glyph.bounds().y();
int top = y + glyph.bounds().y() + glyph.bounds().height();
float scale = 1.0 / IMAGE_SIZE;
float scale = QApplication::desktop()->windowHandle()->devicePixelRatio() / IMAGE_SIZE;
float ls = glyph.location().x() * scale;
float rs = (glyph.location().x() + glyph.bounds().width()) * scale;
float bt = glyph.location().y() * scale;
@ -137,21 +129,25 @@ const Glyph& TextRenderer::getGlyph(char c) {
}
// we use 'J' as a representative size for the solid block character
QChar ch = (c == SOLID_BLOCK_CHAR) ? QChar('J') : QChar(c);
QRect bounds = _metrics.boundingRect(ch);
if (bounds.isEmpty()) {
QRect baseBounds = _metrics.boundingRect(ch);
if (baseBounds.isEmpty()) {
glyph = Glyph(0, QPoint(), QRect(), _metrics.width(ch));
return glyph;
}
// grow the bounds to account for effect, if any
if (_effectType == SHADOW_EFFECT) {
bounds.adjust(-_effectThickness, 0, 0, _effectThickness);
baseBounds.adjust(-_effectThickness, 0, 0, _effectThickness);
} else if (_effectType == OUTLINE_EFFECT) {
bounds.adjust(-_effectThickness, -_effectThickness, _effectThickness, _effectThickness);
baseBounds.adjust(-_effectThickness, -_effectThickness, _effectThickness, _effectThickness);
}
// grow the bounds to account for antialiasing
bounds.adjust(-1, -1, 1, 1);
baseBounds.adjust(-1, -1, 1, 1);
// adjust bounds for device pixel scaling
float ratio = QApplication::desktop()->windowHandle()->devicePixelRatio();
QRect bounds(baseBounds.x() * ratio, baseBounds.y() * ratio, baseBounds.width() * ratio, baseBounds.height() * ratio);
if (_x + bounds.width() > IMAGE_SIZE) {
// we can't fit it on the current row; move to next
@ -180,9 +176,16 @@ const Glyph& TextRenderer::getGlyph(char c) {
} else {
image.fill(0);
QPainter painter(&image);
painter.setFont(_font);
QFont font = _font;
if (ratio == 1.0f) {
painter.setFont(_font);
} else {
QFont enlargedFont = _font;
enlargedFont.setPointSize(_font.pointSize() * ratio);
painter.setFont(enlargedFont);
}
if (_effectType == SHADOW_EFFECT) {
for (int i = 0; i < _effectThickness; i++) {
for (int i = 0; i < _effectThickness * ratio; i++) {
painter.drawText(-bounds.x() - 1 - i, -bounds.y() + 1 + i, ch);
}
} else if (_effectType == OUTLINE_EFFECT) {
@ -191,7 +194,7 @@ const Glyph& TextRenderer::getGlyph(char c) {
font.setStyleStrategy(QFont::ForceOutline);
path.addText(-bounds.x() - 0.5, -bounds.y() + 0.5, font, ch);
QPen pen;
pen.setWidth(_effectThickness);
pen.setWidth(_effectThickness * ratio);
pen.setJoinStyle(Qt::RoundJoin);
pen.setCapStyle(Qt::RoundCap);
painter.setPen(pen);
@ -203,7 +206,7 @@ const Glyph& TextRenderer::getGlyph(char c) {
}
glTexSubImage2D(GL_TEXTURE_2D, 0, _x, _y, bounds.width(), bounds.height(), GL_RGBA, GL_UNSIGNED_BYTE, image.constBits());
glyph = Glyph(_currentTextureID, QPoint(_x, _y), bounds, _metrics.width(ch));
glyph = Glyph(_currentTextureID, QPoint(_x / ratio, _y / ratio), baseBounds, _metrics.width(ch));
_x += bounds.width();
_rowHeight = qMax(_rowHeight, bounds.height());