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Use text to specify combo box padding for better font/display tolerance.

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Consistent mixer strip button height.

The latter works by setting all the button size request heights to the
calculated height of the alphabet.  Thus, all buttons of the same class will be
the same height regardless of their actual text.
This commit is contained in:
David Robillard 2014-07-30 18:27:12 -04:00
parent 394ea9cb86
commit b75b88a1eb
5 changed files with 115 additions and 10 deletions
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61
libs/gtkmm2ext/utils.cc
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@ -76,6 +76,40 @@ Gtkmm2ext::set_size_request_to_display_given_text (Gtk::Widget &w, const gchar *
w.set_size_request(width + hpadding, height + vpadding);
}
/** Set width request to display given text, and height to display anything.
This is useful for setting many widgets to the same height for consistency. */
void
Gtkmm2ext::set_size_request_to_display_given_text_width (Gtk::Widget& w,
const gchar* htext,
gint hpadding,
gint vpadding)
{
static const gchar* vtext = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
w.ensure_style ();
int hwidth, hheight;
get_pixel_size (w.create_pango_layout (htext), hwidth, hheight);
int vwidth, vheight;
get_pixel_size (w.create_pango_layout (vtext), vwidth, vheight);
w.set_size_request(hwidth + hpadding, vheight + vpadding);
}
void
Gtkmm2ext::set_height_request_to_display_any_text (Gtk::Widget& w, gint vpadding)
{
static const gchar* vtext = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
w.ensure_style ();
int width, height;
get_pixel_size (w.create_pango_layout (vtext), width, height);
w.set_size_request(-1, height + vpadding);
}
void
Gtkmm2ext::set_size_request_to_display_given_text (Gtk::Widget &w, std::string const & text,
gint hpadding, gint vpadding)
@ -125,6 +159,33 @@ Gtkmm2ext::set_size_request_to_display_given_text (Gtk::Widget &w,
w.set_size_request(width_max + hpadding, height_max + vpadding);
}
/** This version specifies horizontal padding in text to avoid assumptions
about font size. Should be used anywhere padding is used to avoid text,
like combo boxes. */
void
Gtkmm2ext::set_size_request_to_display_given_text (Gtk::Widget& w,
const std::vector<std::string>& strings,
const std::string& hpadding,
gint vpadding)
{
int width_max = 0;
int height_max = 0;
w.ensure_style ();
for (vector<string>::const_iterator i = strings.begin(); i != strings.end(); ++i) {
int width, height;
get_pixel_size (w.create_pango_layout (*i), width, height);
width_max = max(width_max,width);
height_max = max(height_max, height);
}
int pad_width;
int pad_height;
get_pixel_size (w.create_pango_layout (hpadding), pad_width, pad_height);
w.set_size_request(width_max + pad_width, height_max + vpadding);
}
static inline guint8
demultiply_alpha (guint8 src,
guint8 alpha)