A Pango::FontMetrics holds the overall metric information for a font (possibly restricted to a script).
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#include <pangomm/fontmetrics.h>
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| static GType | get_type () |
| | Get the GType for this class, for use with the underlying GObject type system. More...
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A Pango::FontMetrics holds the overall metric information for a font (possibly restricted to a script).
| Pango::FontMetrics::FontMetrics |
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| Pango::FontMetrics::FontMetrics |
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PangoFontMetrics * |
gobject, |
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bool |
make_a_copy = true |
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explicit |
| Pango::FontMetrics::FontMetrics |
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const FontMetrics& |
other | ) |
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| Pango::FontMetrics::~FontMetrics |
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noexcept |
| int Pango::FontMetrics::get_approximate_char_width |
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const |
Gets the approximate character width for a font metrics structure.
This is merely a representative value useful, for example, for determining the initial size for a window. Actual characters in text will be wider and narrower than this.
- Returns
- The character width, in Pango units.
| int Pango::FontMetrics::get_approximate_digit_width |
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const |
Gets the approximate digit width for a font metrics structure.
This is merely a representative value useful, for example, for determining the initial size for a window. Actual digits in text can be wider or narrower than this, though this value is generally somewhat more accurate than the result of get_approximate_char_width() for digits.
- Returns
- The digit width, in Pango units.
| int Pango::FontMetrics::get_ascent |
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const |
Gets the ascent from a font metrics structure.
The ascent is the distance from the baseline to the logical top of a line of text. (The logical top may be above or below the top of the actual drawn ink. It is necessary to lay out the text to figure where the ink will be.)
- Returns
- The ascent, in Pango units.
| int Pango::FontMetrics::get_descent |
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const |
Gets the descent from a font metrics structure.
The descent is the distance from the baseline to the logical bottom of a line of text. (The logical bottom may be above or below the bottom of the actual drawn ink. It is necessary to lay out the text to figure where the ink will be.)
- Returns
- The descent, in Pango units.
| int Pango::FontMetrics::get_height |
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const |
Gets the line height from a font metrics structure.
The line height is the distance between successive baselines in wrapped text.
If the line height is not available, 0 is returned.
- Since pangomm 1.44:
- Returns
- The height, in Pango units.
| int Pango::FontMetrics::get_strikethrough_position |
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const |
Gets the suggested position to draw the strikethrough.
The value returned is the distance above the baseline of the top of the strikethrough.
- Since pangomm 1.6:
- Returns
- The suggested strikethrough position, in Pango units.
| int Pango::FontMetrics::get_strikethrough_thickness |
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const |
Gets the suggested thickness to draw for the strikethrough.
- Since pangomm 1.6:
- Returns
- The suggested strikethrough thickness, in Pango units.
| static GType Pango::FontMetrics::get_type |
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static |
Get the GType for this class, for use with the underlying GObject type system.
| int Pango::FontMetrics::get_underline_position |
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const |
Gets the suggested position to draw the underline.
The value returned is the distance above the baseline of the top of the underline. Since most fonts have underline positions beneath the baseline, this value is typically negative.
- Since pangomm 1.6:
- Returns
- The suggested underline position, in Pango units.
| int Pango::FontMetrics::get_underline_thickness |
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const |
Gets the suggested thickness to draw for the underline.
- Since pangomm 1.6:
- Returns
- The suggested underline thickness, in Pango units.
| PangoFontMetrics* Pango::FontMetrics::gobj |
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inline |
Provides access to the underlying C instance.
| const PangoFontMetrics* Pango::FontMetrics::gobj |
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const |
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inline |
Provides access to the underlying C instance.
| PangoFontMetrics* Pango::FontMetrics::gobj_copy |
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const |
Provides access to the underlying C instance. The caller is responsible for freeing it. Use when directly setting fields in structs.
- Parameters
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| lhs | The left-hand side |
| rhs | The right-hand side |
A Glib::wrap() method for this object.
- Parameters
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| object | The C instance. |
| take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref. |
- Returns
- A C++ instance that wraps this C instance.
| PangoFontMetrics* Pango::FontMetrics::gobject_ |
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protected |
