gtkmm: Gdk::GLTexture Class Reference
A Gdk::Texture representing a GL texture object. More...
#include <gdkmm/gltexture.h>
Public Types | |
using | SlotGLReleased = sigc::slot< void()> |
For instance, void on_gl_resources_released();. More... | |
Public Types inherited from Glib::Object | |
typedef void(*)(gpointer data | DestroyNotify) |
Public Types inherited from sigc::trackable | |
typedef internal::func_destroy_notify | func_destroy_notify |
Public Types inherited from sigc::notifiable | |
typedef internal::func_destroy_notify | func_destroy_notify |
Public Types inherited from Gdk::Paintable | |
enum | Flags { Flags::STATIC_SIZE = 1 << 0, Flags::STATIC_CONTENTS = 1 << 1 } |
Flags about this object. More... | |
Public Member Functions | |
GLTexture (GLTexture&& src) noexcept | |
GLTexture& | operator= (GLTexture&& src) noexcept |
~GLTexture () noexcept override | |
GdkGLTexture* | gobj () |
Provides access to the underlying C GObject. More... | |
const GdkGLTexture* | gobj () const |
Provides access to the underlying C GObject. More... | |
GdkGLTexture* | gobj_copy () |
Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More... | |
void | release () |
Releases the GL resources held by a Gdk::GLTexture that was created with gdk_gl_texture_new(). More... | |
Public Member Functions inherited from Gdk::Texture | |
Texture (Texture&& src) noexcept | |
Texture& | operator= (Texture&& src) noexcept |
~Texture () noexcept override | |
GdkTexture* | gobj () |
Provides access to the underlying C GObject. More... | |
const GdkTexture* | gobj () const |
Provides access to the underlying C GObject. More... | |
GdkTexture* | gobj_copy () |
Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More... | |
int | get_width () const |
Returns the width of texture, in pixels. More... | |
int | get_height () const |
Returns the height of the texture, in pixels. More... | |
void | download (guchar* data, gsize stride) const |
Downloads the texture into local memory. More... | |
bool | save_to_png (const Glib::ustring& filename) const |
Store the given texture to the filename as a PNG file. More... | |
Glib::PropertyProxy_ReadOnly< int > | property_width () const |
The width of the texture, in pixels. More... | |
Glib::PropertyProxy_ReadOnly< int > | property_height () const |
The height of the texture, in pixels. More... | |
Public Member Functions inherited from Glib::Object | |
Object (const Object &)=delete | |
Object & | operator= (const Object &)=delete |
Object (Object &&src) noexcept | |
Object & | operator= (Object &&src) noexcept |
void * | get_data (const QueryQuark &key) |
void | set_data (const Quark &key, void *data) |
void | set_data (const Quark &key, void *data, DestroyNotify notify) |
void | remove_data (const QueryQuark &quark) |
void * | steal_data (const QueryQuark &quark) |
Glib::RefPtr< Glib::Object > | wrap (GObject *object, bool take_copy=false) |
Public Member Functions inherited from Glib::ObjectBase | |
ObjectBase (const ObjectBase &)=delete | |
ObjectBase & | operator= (const ObjectBase &)=delete |
void | set_property_value (const Glib::ustring &property_name, const Glib::ValueBase &value) |
void | get_property_value (const Glib::ustring &property_name, Glib::ValueBase &value) const |
void | set_property (const Glib::ustring &property_name, const PropertyType &value) |
void | get_property (const Glib::ustring &property_name, PropertyType &value) const |
PropertyType | get_property (const Glib::ustring &property_name) const |
sigc::connection | connect_property_changed (const Glib::ustring &property_name, const sigc::slot< void()> &slot) |
sigc::connection | connect_property_changed (const Glib::ustring &property_name, sigc::slot< void()> &&slot) |
void | freeze_notify () |
void | thaw_notify () |
virtual void | reference () const |
virtual void | unreference () const |
GObject * | gobj () |
const GObject * | gobj () const |
GObject * | gobj_copy () const |
Public Member Functions inherited from sigc::trackable | |
trackable () noexcept | |
trackable (const trackable &src) noexcept | |
trackable (trackable &&src) noexcept | |
~trackable () | |
void | add_destroy_notify_callback (notifiable *data, func_destroy_notify func) const |
void | notify_callbacks () |
trackable & | operator= (const trackable &src) |
trackable & | operator= (trackable &&src) noexcept |
void | remove_destroy_notify_callback (notifiable *data) const |
Public Member Functions inherited from Gdk::Paintable | |
Paintable (Paintable&& src) noexcept | |
Paintable& | operator= (Paintable&& src) noexcept |
~Paintable () noexcept override | |
GdkPaintable* | gobj () |
Provides access to the underlying C GObject. More... | |
const GdkPaintable* | gobj () const |
Provides access to the underlying C GObject. More... | |
void | snapshot (const Glib::RefPtr< Gdk::Snapshot >& snapshot, double width, double height) |
Snapshots the given paintable with the given width and height at the current (0,0) offset of the snapshot. More... | |
Glib::RefPtr< const Paintable > | get_current_image () const |
Gets an immutable paintable for the current contents displayed by paintable. More... | |
Flags | get_flags () const |
Get flags for the paintable. More... | |
int | get_intrinsic_width () const |
Gets the preferred width the paintable would like to be displayed at. More... | |
int | get_intrinsic_height () const |
Gets the preferred height the paintable would like to be displayed at. More... | |
double | get_intrinsic_aspect_ratio () const |
Gets the preferred aspect ratio the paintable would like to be displayed at. More... | |
void | compute_concrete_size (double specified_width, double specified_height, double default_width, double default_height, double& concrete_width, double& concrete_height) const |
Applies the sizing algorithm outlined in https://drafts.csswg.org/css-images-3/#default-sizing to the given paintable. More... | |
void | invalidate_contents () |
Called by implementations of Gdk::Paintable to invalidate their contents. More... | |
void | invalidate_size () |
Called by implementations of Gdk::Paintable to invalidate their size. More... | |
Glib::SignalProxy< void()> | signal_invalidate_contents () |
Glib::SignalProxy< void()> | signal_invalidate_size () |
Public Member Functions inherited from Glib::Interface | |
Interface () | |
Interface (Interface &&src) noexcept | |
Interface & | operator= (Interface &&src) noexcept |
Interface (const Glib::Interface_Class &interface_class) | |
Interface (GObject *castitem) | |
~Interface () noexcept override | |
Interface (const Interface &)=delete | |
Interface & | operator= (const Interface &)=delete |
GObject * | gobj () |
const GObject * | gobj () const |
Static Public Member Functions | |
static GType | get_type () |
Get the GType for this class, for use with the underlying GObject type system. More... | |
static Glib::RefPtr< Texture > | create (const Glib::RefPtr< GLContext >& context, guint id, int width, int height, const SlotGLReleased& slot={}) |
Creates a new texture for an existing GL texture. More... | |
Static Public Member Functions inherited from Gdk::Texture | |
static GType | get_type () |
Get the GType for this class, for use with the underlying GObject type system. More... | |
static Glib::RefPtr< Texture > | create_for_pixbuf (const Glib::RefPtr< Pixbuf >& pixbuf) |
Creates a new texture object representing the Gdk::Pixbuf. More... | |
static Glib::RefPtr< Texture > | create_from_resource (const std::string& resource_path) |
Creates a new texture by loading an image from a resource. More... | |
static Glib::RefPtr< Texture > | create_from_file (const Glib::RefPtr< Gio::File >& file) |
Creates a new texture by loading an image from a file. More... | |
Static Public Member Functions inherited from Gdk::Paintable | |
static void | add_interface (GType gtype_implementer) |
static GType | get_type () |
Get the GType for this class, for use with the underlying GObject type system. More... | |
Protected Member Functions | |
GLTexture () | |
Protected Member Functions inherited from Gdk::Texture | |
Texture () | |
Protected Member Functions inherited from Glib::Object | |
Object () | |
Object (const Glib::ConstructParams &construct_params) | |
Object (GObject *castitem) | |
~Object () noexcept override | |
Protected Member Functions inherited from Glib::ObjectBase | |
ObjectBase () | |
ObjectBase (const char *custom_type_name) | |
ObjectBase (const std::type_info &custom_type_info) | |
ObjectBase (ObjectBase &&src) noexcept | |
ObjectBase & | operator= (ObjectBase &&src) noexcept |
virtual | ~ObjectBase () noexcept=0 |
void | initialize (GObject *castitem) |
void | initialize_move (GObject *castitem, Glib::ObjectBase *previous_wrapper) |
Protected Member Functions inherited from Gdk::Paintable | |
Paintable () | |
You should derive from this class to use it. More... | |
virtual void | snapshot_vfunc (const Glib::RefPtr< Gdk::Snapshot >&snapshot, double width, double height) |
virtual Glib::RefPtr< Paintable > | get_current_image_vfunc () const |
virtual Flags | get_flags_vfunc () const |
virtual int | get_intrinsic_width_vfunc () const |
virtual int | get_intrinsic_height_vfunc () const |
virtual double | get_intrinsic_aspect_ratio_vfunc () const |
Related Functions | |
(Note that these are not member functions.) | |
Glib::RefPtr< Gdk::GLTexture > | wrap (GdkGLTexture* object, bool take_copy=false) |
A Glib::wrap() method for this object. More... | |
Related Functions inherited from Gdk::Texture | |
Glib::RefPtr< Gdk::Texture > | wrap (GdkTexture* object, bool take_copy=false) |
A Glib::wrap() method for this object. More... | |
Related Functions inherited from Gdk::Paintable | |
Glib::RefPtr< Gdk::Paintable > | wrap (GdkPaintable* object, bool take_copy=false) |
A Glib::wrap() method for this object. More... | |
Detailed Description
A Gdk::Texture representing a GL texture object.
Member Typedef Documentation
using Gdk::GLTexture::SlotGLReleased = sigc::slot<void()> |
For instance, void on_gl_resources_released();.
Constructor & Destructor Documentation
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noexcept |
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overridenoexcept |
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protected |
Member Function Documentation
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static |
Creates a new texture for an existing GL texture.
Note that the GL texture must not be modified until slot is called, which will happen when the GdkTexture object is finalized, or due to an explicit call of gdk_gl_texture_release().
- Parameters
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context A Gdk::GLContext. id The ID of a texture that was created with context. width The nominal width of the texture. height The nominal height of the texture. slot A destroy notify that will be called when the GL resources are released.
- Returns
- A newly-created Gdk::Texture.
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static |
Get the GType for this class, for use with the underlying GObject type system.
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inline |
Provides access to the underlying C GObject.
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inline |
Provides access to the underlying C GObject.
GdkGLTexture* Gdk::GLTexture::gobj_copy | ( | ) |
Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
void Gdk::GLTexture::release | ( | ) |
Releases the GL resources held by a Gdk::GLTexture that was created with gdk_gl_texture_new().
The texture contents are still available via the Gdk::Texture::download() function, after this function has been called.
Friends And Related Function Documentation
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related |
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.