Context

A pango.context.Context stores global information used to control the itemization process.

The information stored by pango.context.Context includes the fontmap used to look up fonts, and default values such as the default language, default gravity, or default font.

To obtain a pango.context.Context, use pango.font_map.FontMap.createContext.

class Context : ObjectG {

this();

void changed();

pango.types.Direction getBaseDir();

pango.types.Gravity getBaseGravity();

pango.font_description.FontDescription getFontDescription();

pango.font_map.FontMap getFontMap();

pango.types.Gravity getGravity();

pango.types.GravityHint getGravityHint();

pango.language.Language getLanguage();

pango.matrix.Matrix getMatrix();

pango.font_metrics.FontMetrics getMetrics(pango.font_description.FontDescription desc, pango.language.Language language);

bool getRoundGlyphPositions();

uint getSerial();

void listFamilies(pango.font_family.FontFamily[] families);

pango.font.Font loadFont(pango.font_description.FontDescription desc);

pango.fontset.Fontset loadFontset(pango.font_description.FontDescription desc, pango.language.Language language);

void setBaseDir(pango.types.Direction direction);

void setBaseGravity(pango.types.Gravity gravity);

void setFontDescription(pango.font_description.FontDescription desc);

void setFontMap(pango.font_map.FontMap fontMap);

void setGravityHint(pango.types.GravityHint hint);

void setLanguage(pango.language.Language language);

void setMatrix(pango.matrix.Matrix matrix);

void setRoundGlyphPositions(bool roundPositions);

}

Constructors

this this(): Creates a new pango.context.Context initialized to default values.

Members

Functions

changed void changed(): Forces a change in the context, which will cause any pango.layout.Layout using this context to re-layout.
getBaseDir pango.types.Direction getBaseDir(): Retrieves the base direction for the context.
getBaseGravity pango.types.Gravity getBaseGravity(): Retrieves the base gravity for the context.
getFontDescription pango.font_description.FontDescription getFontDescription(): Retrieve the default font description for the context.
getFontMap pango.font_map.FontMap getFontMap(): Gets the pango.font_map.FontMap used to look up fonts for this context.
getGravity pango.types.Gravity getGravity(): Retrieves the gravity for the context.
getGravityHint pango.types.GravityHint getGravityHint(): Retrieves the gravity hint for the context.
getLanguage pango.language.Language getLanguage(): Retrieves the global language tag for the context.
getMatrix pango.matrix.Matrix getMatrix(): Gets the transformation matrix that will be applied when rendering with this context.
getMetrics pango.font_metrics.FontMetrics getMetrics(pango.font_description.FontDescription desc, pango.language.Language language): Get overall metric information for a particular font description.
getRoundGlyphPositions bool getRoundGlyphPositions(): Returns whether font rendering with this context should round glyph positions and widths.
getSerial uint getSerial(): Returns the current serial number of context.
listFamilies void listFamilies(pango.font_family.FontFamily[] families): List all families for a context.
loadFont pango.font.Font loadFont(pango.font_description.FontDescription desc): Loads the font in one of the fontmaps in the context that is the closest match for desc.
loadFontset pango.fontset.Fontset loadFontset(pango.font_description.FontDescription desc, pango.language.Language language): Load a set of fonts in the context that can be used to render a font matching desc.
setBaseDir void setBaseDir(pango.types.Direction direction): Sets the base direction for the context.
setBaseGravity void setBaseGravity(pango.types.Gravity gravity): Sets the base gravity for the context.
setFontDescription void setFontDescription(pango.font_description.FontDescription desc): Set the default font description for the context
setFontMap void setFontMap(pango.font_map.FontMap fontMap): Sets the font map to be searched when fonts are looked-up in this context.
setGravityHint void setGravityHint(pango.types.GravityHint hint): Sets the gravity hint for the context.
setLanguage void setLanguage(pango.language.Language language): Sets the global language tag for the context.
setMatrix void setMatrix(pango.matrix.Matrix matrix): Sets the transformation matrix that will be applied when rendering with this context.
setRoundGlyphPositions void setRoundGlyphPositions(bool roundPositions): Sets whether font rendering with this context should round glyph positions and widths to integral positions, in device units.

Inherited Members

From ObjectG

setGObject void setGObject(void* cObj, Flag!"Take" take): Set the GObject of a D ObjectG wrapper.
cPtr void* cPtr(Flag!"Dup" dup): Get a pointer to the underlying C object.
ref_ void* ref_(void* gObj): Calls g_object_ref() on a GObject.
unref unref(void* gObj): Calls g_object_unref() on a GObject.
getType GType getType(): Get the GType of an object.
gType GType gType [@property getter]: GObject GType property.
self ObjectG self(): Convenience method to return this cast to a type. For use in D with statements.
getDObject T getDObject(void* cptr, Flag!"Take" take): Template to get the D object from a C GObject and cast it to the given D object type.
connectSignalClosure ulong connectSignalClosure(string signalDetail, DClosure closure, Flag!"After" after): Connect a D closure to an object signal.
setProperty void setProperty(string propertyName, T val): Template for setting a GObject property.
getProperty T getProperty(string propertyName): Template for getting a GObject property.
compatControl size_t compatControl(size_t what, void* data)
bindProperty gobject.binding.Binding bindProperty(string sourceProperty, gobject.object.ObjectG target, string targetProperty, gobject.types.BindingFlags flags): Creates a binding between source_property on source and target_property on target.
bindPropertyFull gobject.binding.Binding bindPropertyFull(string sourceProperty, gobject.object.ObjectG target, string targetProperty, gobject.types.BindingFlags flags, gobject.closure.Closure transformTo, gobject.closure.Closure transformFrom): Creates a binding between source_property on source and target_property on target, allowing you to set the transformation functions to be used by the binding.
forceFloating void forceFloating(): This function is intended for #GObject implementations to re-enforce a floating[floating-ref] object reference. Doing this is seldom required: all #GInitiallyUnowneds are created with a floating reference which usually just needs to be sunken by calling gobject.object.ObjectG.refSink.
freezeNotify void freezeNotify(): Increases the freeze count on object. If the freeze count is non-zero, the emission of "notify" signals on object is stopped. The signals are queued until the freeze count is decreased to zero. Duplicate notifications are squashed so that at most one #GObject::notify signal is emitted for each property modified while the object is frozen.
getData void* getData(string key): Gets a named field from the objects table of associations (see gobject.object.ObjectG.setData).
getProperty void getProperty(string propertyName, gobject.value.Value value): Gets a property of an object.
getQdata void* getQdata(glib.types.Quark quark): This function gets back user data pointers stored via gobject.object.ObjectG.setQdata.
getv void getv(string[] names, gobject.value.Value[] values): Gets n_properties properties for an object. Obtained properties will be set to values. All properties must be valid. Warnings will be emitted and undefined behaviour may result if invalid properties are passed in.
isFloating bool isFloating(): Checks whether object has a floating[floating-ref] reference.
notify void notify(string propertyName): Emits a "notify" signal for the property property_name on object.
notifyByPspec void notifyByPspec(gobject.param_spec.ParamSpec pspec): Emits a "notify" signal for the property specified by pspec on object.
refSink gobject.object.ObjectG refSink(): Increase the reference count of object, and possibly remove the floating[floating-ref] reference, if object has a floating reference.
runDispose void runDispose(): Releases all references to other objects. This can be used to break reference cycles.
setData void setData(string key, void* data): Each object carries around a table of associations from strings to pointers. This function lets you set an association.
setProperty void setProperty(string propertyName, gobject.value.Value value): Sets a property on an object.
stealData void* stealData(string key): Remove a specified datum from the object's data associations, without invoking the association's destroy handler.
stealQdata void* stealQdata(glib.types.Quark quark): This function gets back user data pointers stored via gobject.object.ObjectG.setQdata and removes the data from object without invoking its destroy() function (if any was set). Usually, calling this function is only required to update user data pointers with a destroy notifier, for example:
thawNotify void thawNotify(): Reverts the effect of a previous call to gobject.object.ObjectG.freezeNotify. The freeze count is decreased on object and when it reaches zero, queued "notify" signals are emitted.
watchClosure void watchClosure(gobject.closure.Closure closure): This function essentially limits the life time of the closure to the life time of the object. That is, when the object is finalized, the closure is invalidated by calling gobject.closure.Closure.invalidate on it, in order to prevent invocations of the closure with a finalized (nonexisting) object. Also, gobject.object.ObjectG.ref_ and gobject.object.ObjectG.unref are added as marshal guards to the closure, to ensure that an extra reference count is held on object during invocation of the closure. Usually, this function will be called on closures that use this object as closure data.
connectNotify ulong connectNotify(string detail, T callback, Flag!"After" after): Connect to Notify signal.

pango context classes

Context