// TODO: the position still seems a bit off wrt. padding
void ButtonVector::RecalculateSize(bool repaintIfSizeDidntChange)
{
Size prevSize = desiredSize;
CachedStyle *s = cachedStyle;
desiredSize = GetBorderAndPaddingSize(s);
Rect bbox;
Brush *brStroke = BrushFromColorData(s->stroke, bbox);
if (0.f == s->strokeWidth) {
graphicsPath->GetBounds(&bbox);
} else {
Pen pen(brStroke, s->strokeWidth);
// pen widith is multiplied by MiterLimit(), which is 10 by default
// so set it explicitly to 1 for the size we expect
pen.SetMiterLimit(1.f);
pen.SetAlignment(PenAlignmentInset);
graphicsPath->GetBounds(&bbox, NULL, &pen);
}
desiredSize.Width += bbox.Width;
desiredSize.Height += bbox.Height;
if (!prevSize.Equals(desiredSize))
RequestLayout(this);
else if (repaintIfSizeDidntChange)
RequestRepaint(this);
}
// Update desired size of the button. If the size changes, trigger layout
// (which will in turn request repaints of affected areas)
// To keep size of the button stable (to avoid re-layouts) we use font
// line spacing to be the height of the button, even if text is empty.
// Note: it might be that for some cases button with no text should collapse
// in size but we don't have a need for that yet
void Button::RecalculateSize(bool repaintIfSizeDidntChange)
{
Size prevSize = desiredSize;
desiredSize = GetBorderAndPaddingSize(cachedStyle);
Graphics *gfx = AllocGraphicsForMeasureText();
CachedStyle *s = cachedStyle;
Font *font = GetCachedFont(s->fontName, s->fontSize, s->fontWeight);
textDx = 0;
float fontDy = font->GetHeight(gfx);
RectF bbox;
if (text) {
bbox = MeasureText(gfx, font, text);
textDx = (size_t)bbox.Width; // TODO: round up?
// bbox shouldn't be bigger than fontDy. We apply magic adjustment because
// bbox is bigger in n-th decimal point
CrashIf(fontDy + .5f < bbox.Height);
}
desiredSize.Width += textDx;
desiredSize.Height += (INT)fontDy; // TODO: round up?
FreeGraphicsForMeasureText(gfx);
if (!prevSize.Equals(desiredSize))
RequestLayout(this);
else if (repaintIfSizeDidntChange)
RequestRepaint(this);
}
// Update desired size of the button. If the size changes, trigger layout
// (which will in turn request repaints of affected areas)
// To keep size of the button stable (to avoid re-layouts) we use font
// line spacing to be the height of the button, even if text is empty.
// Note: it might be that for some cases button with no text should collapse
// in size but we don't have a need for that yet
void Button::RecalculateSize(bool repaintIfSizeDidntChange)
{
Size prevSize = desiredSize;
desiredSize = GetBorderAndPaddingSize(cachedStyle);
Graphics *gfx = AllocGraphicsForMeasureText();
CachedStyle *s = cachedStyle;
Font *font = GetCachedFont(s->fontName, s->fontSize, s->fontWeight);
textDx = 0;
float fontDy = font->GetHeight(gfx);
RectF bbox;
if (text) {
bbox = MeasureText(gfx, font, text);
textDx = CeilI(bbox.Width);
// I theorize that bbox shouldn't be bigger than fontDy. However, in practice
// it is (e.g. for Lucida Grande and text "Page: 0 / 0", bbox.Dy is 19.00
// and fontDy is 18.11). I still want to know if the difference gets even bigger
// than that
float maxDiff = 1.f;
if (bbox.Height > fontDy + maxDiff) {
fontDy = bbox.Height;
float diff = fontDy + maxDiff - bbox.Height;
char *fontName = str::conv::ToUtf8(s->fontName);
char *tmp = str::conv::ToUtf8(text);
CrashLogFmt("fontDy=%.2f, bbox.Height=%.2f, diff=%.2f (should be > 0) font: %s, text='%s'\r\n", (float)fontDy, (float)bbox.Height, diff, fontName, tmp);
CrashIf(diff < 0);
}
}
desiredSize.Width += textDx;
desiredSize.Height += CeilI(fontDy);
FreeGraphicsForMeasureText(gfx);
if (!prevSize.Equals(desiredSize))
RequestLayout(this);
else if (repaintIfSizeDidntChange)
RequestRepaint(this);
}
