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Remove space between button and text with inlines collapsible insets

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Typically there are two sources of spacing:
* the button has two pixels added to the left and to the right
* the frame around the text also has 2 pixels to the left and to the right

Note that this value of two pixels is given here for simplicity, but
these are parameterized by methods like textOffset or leftOffset.

What we want to remove is the space after the button and the space
before the frame. This is done in 3 places

In dimensionCollapsed(), the extra space is removed from the dimension
after its computation

In metrics(), the space avoided before the frame is removed from width.

In draw, the whome text inset is drawn with a negative offset.

Fixes #12335.
This commit is contained in:
Jean-Marc Lasgouttes 2022-12-11 20:59:43 +01:00
parent fb37682d74
commit 04ece4f0d6
1 changed files with 11 additions and 4 deletions
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15
src/insets/InsetCollapsible.cpp
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@ -188,8 +188,13 @@ Dimension InsetCollapsible::dimensionCollapsed(BufferView const & bv) const
Dimension dim;
FontInfo labelfont(getLabelfont());
labelfont.realize(sane_font);
int const offset = Inset::textOffset(&bv);
theFontMetrics(labelfont).buttonText(
buttonLabel(bv), Inset::textOffset(&bv), dim.wid, dim.asc, dim.des);
buttonLabel(bv), offset, dim.wid, dim.asc, dim.des);
// remove spacing on the right for left buttons
if (geometry(bv) == LeftButton)
// this form makes a difference if offset is even
dim.wid -= offset - offset / 2;
return dim;
}
@ -236,8 +241,8 @@ void InsetCollapsible::metrics(MetricsInfo & mi, Dimension & dim) const
InsetText::metrics(mi, textdim);
view_[&bv].openinlined_ = (textdim.wid + dim.wid) < mi.base.textwidth;
if (view_[&bv].openinlined_) {
// Correct for button width.
dim.wid += textdim.wid;
// Correct for button width but remove spacing before frame
dim.wid += textdim.wid - leftOffset(mi.base.bv) / 2;
dim.des = max(dim.des - textdim.asc + dim.asc, textdim.des);
dim.asc = textdim.asc;
} else {
@ -314,7 +319,9 @@ void InsetCollapsible::draw(PainterInfo & pi, int x, int y) const
case LeftButton:
case TopButton: {
if (g == LeftButton) {
textx = x + dimc.width();
// correct for spacing added before the frame in
// InsetText::draw. We want the button to touch the frame.
textx = x + dimc.width() - leftOffset(pi.base.bv) / 2;
texty = baseline;
} else {
textx = x;