gtkmm: Gtk::AspectFrame Class Reference

A frame that constrains its child to a particular aspect ratio. More...

#include <gtkmm/aspectframe.h>

Inheritance diagram for Gtk::AspectFrame:

Public Member Functions

 AspectFrame (AspectFrame&& src) noexcept
 
AspectFrameoperator= (AspectFrame&& src) noexcept
 
 AspectFrame (const AspectFrame&)=delete
 
AspectFrameoperator= (const AspectFrame&)=delete
 
 ~AspectFrame () noexcept override
 
GtkAspectFrame* gobj ()
 Provides access to the underlying C GObject. More...

 
const GtkAspectFrame* gobj () const
 Provides access to the underlying C GObject. More...

 
 AspectFrame (const Glib::ustring& label={}, Align xalign=Gtk::Align::CENTER, Align yalign=Gtk::Align::CENTER, float ratio=1.0, bool obey_child=false)
 Constructor to create a new AspectFrame object. More...

 
 AspectFrame (const Glib::ustring& label, float xalign, float yalign, float ratio=1.0, bool obey_child=false)
 Constructor to create a new AspectFrame object. More...

 
void set (float xalign, float yalign, float ratio, bool obey_child)
 Set the properties of this AspectFrame. More...

 
void set (Align xalign, Align yalign, float ratio, bool obey_child)
 Set the properties of this AspectFrame. More...

 
Glib::PropertyProxy< float > property_xalign ()
 X alignment of the child. More...

 
Glib::PropertyProxy_ReadOnly< float > property_xalign () const
 X alignment of the child. More...

 
Glib::PropertyProxy< float > property_yalign ()
 Y alignment of the child. More...

 
Glib::PropertyProxy_ReadOnly< float > property_yalign () const
 Y alignment of the child. More...

 
Glib::PropertyProxy< float > property_ratio ()
 Aspect ratio if obey_child is false. More...

 
Glib::PropertyProxy_ReadOnly< float > property_ratio () const
 Aspect ratio if obey_child is false. More...

 
Glib::PropertyProxy< bool > property_obey_child ()
 Force aspect ratio to match that of the frame’s child. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_obey_child () const
 Force aspect ratio to match that of the frame’s child. More...

 
- Public Member Functions inherited from Gtk::Frame
 Frame (Frame&& src) noexcept
 
Frameoperator= (Frame&& src) noexcept
 
 Frame (const Frame&)=delete
 
Frameoperator= (const Frame&)=delete
 
 ~Frame () noexcept override
 
GtkFrame* gobj ()
 Provides access to the underlying C GObject. More...

 
const GtkFrame* gobj () const
 Provides access to the underlying C GObject. More...

 
 Frame ()
 
 Frame (const Glib::ustring& label)
 
void set_label (const Glib::ustring& label)
 Set the label to appear in the top edge of the frame. More...

 
void unset_label ()
 
Glib::ustring get_label () const
 If the frame’s label widget is a Gtk::Label, returns the text in the label widget. More...

 
void set_label_widget (Widget& label_widget)
 Sets the Gtk::Frame::property_label_widget() for the frame. More...

 
Widgetget_label_widget ()
 Retrieves the label widget for the frame. More...

 
const Widgetget_label_widget () const
 Retrieves the label widget for the frame. More...

 
void set_label_align (float xalign=0.0)
 Sets the X alignment of the frame widget’s label. More...

 
void set_label_align (Align xalign)
 Sets the X alignment of the frame widget’s label. More...

 
float get_label_align () const
 Retrieves the X alignment of the frame’s label. More...

 
void set_shadow_type (ShadowType type)
 Sets shadow type of the frame. More...

 
ShadowType get_shadow_type () const
 Retrieves the shadow type of the frame. More...

 
Glib::PropertyProxy< Glib::ustringproperty_label ()
 Text of the frame’s label. More...

 
Glib::PropertyProxy_ReadOnly< Glib::ustringproperty_label () const
 Text of the frame’s label. More...

 
Glib::PropertyProxy< double > property_label_xalign ()
 The horizontal alignment of the label. More...

 
Glib::PropertyProxy_ReadOnly< double > property_label_xalign () const
 The horizontal alignment of the label. More...

 
Glib::PropertyProxy< ShadowTypeproperty_shadow_type ()
 Appearance of the frame. More...

 
Glib::PropertyProxy_ReadOnly< ShadowTypeproperty_shadow_type () const
 Appearance of the frame. More...

 
Glib::PropertyProxy< Widget* > property_label_widget ()
 A widget to display in place of the usual frame label. More...

 
Glib::PropertyProxy_ReadOnly< Widget* > property_label_widget () const
 A widget to display in place of the usual frame label. More...

 
- Public Member Functions inherited from Gtk::Bin
 Bin (Bin&& src) noexcept
 
Binoperator= (Bin&& src) noexcept
 
 Bin (const Bin&)=delete
 
Binoperator= (const Bin&)=delete
 
 ~Bin () noexcept override
 
GtkBin* gobj ()
 Provides access to the underlying C GObject. More...

 
const GtkBin* gobj () const
 Provides access to the underlying C GObject. More...

 
Gtk::Widgetget_child ()
 Gets the child of the Gtk::Bin, or nullptr if the bin contains no child widget. More...

 
const Gtk::Widgetget_child () const
 Gets the child of the Gtk::Bin, or nullptr if the bin contains no child widget. More...

 
void remove ()
 Remove the contained widget. More...

 
void add_label (const Glib::ustring& label, bool mnemonic=false, Align x_align=Align::CENTER, Align y_align=Align::CENTER)
 Add a Label object. More...

 
void add_pixlabel (const std::string& pixfile, const Glib::ustring& label, Align x_align=Align::CENTER, Align y_align=Align::CENTER)
 Add Image and Label objects. More...

 
- Public Member Functions inherited from Gtk::Container
 Container (Container&& src) noexcept
 
Containeroperator= (Container&& src) noexcept
 
 Container (const Container&)=delete
 
Containeroperator= (const Container&)=delete
 
 ~Container () noexcept override
 
GtkContainer* gobj ()
 Provides access to the underlying C GObject. More...

 
const GtkContainer* gobj () const
 Provides access to the underlying C GObject. More...

 
void add (Widget& widget)
 Adds widget to container. More...

 
void remove (Widget& widget)
 Removes widget from the container. More...

 
void foreach (const ForeachSlot& slot)
 Operate on contained items. More...

 
void forall (const ForeachSlot& slot)
 Operate on contained items, including internal children. More...

 
std::vector< Widget* > get_children ()
 Returns the container’s non-internal children. More...

 
std::vector< const Widget* > get_children () const
 Returns the container’s non-internal children. More...

 
void set_focus_vadjustment (const Glib::RefPtr< Adjustment >& adjustment)
 Hooks up an adjustment to focus handling in a container, so when a child of the container is focused, the adjustment is scrolled to show that widget. More...

 
Glib::RefPtr< Adjustmentget_focus_vadjustment ()
 Retrieves the vertical focus adjustment for the container. More...

 
Glib::RefPtr< const Adjustmentget_focus_vadjustment () const
 Retrieves the vertical focus adjustment for the container. More...

 
void set_focus_hadjustment (const Glib::RefPtr< Adjustment >& adjustment)
 Hooks up an adjustment to focus handling in a container, so when a child of the container is focused, the adjustment is scrolled to show that widget. More...

 
Glib::RefPtr< Adjustmentget_focus_hadjustment ()
 Retrieves the horizontal focus adjustment for the container. More...

 
Glib::RefPtr< const Adjustmentget_focus_hadjustment () const
 Retrieves the horizontal focus adjustment for the container. More...

 
GType child_type () const
 Returns the type of the children supported by the container. More...

 
Glib::SignalProxy< void(Widget*)> signal_add ()
 
Glib::SignalProxy< void(Widget*)> signal_remove ()
 
- Public Member Functions inherited from Gtk::Widget
 Widget (Widget&& src) noexcept
 
Widgetoperator= (Widget&& src) noexcept
 
 Widget (const Widget&)=delete
 
Widgetoperator= (const Widget&)=delete
 
 ~Widget () noexcept override
 Destroys the widget. More...

 
GtkWidget* gobj ()
 Provides access to the underlying C GObject. More...

 
const GtkWidget* gobj () const
 Provides access to the underlying C GObject. More...

 
Glib::RefPtr< ConstraintTargetmake_refptr_constrainttarget ()
 Converts this widget to a reference counted Gtk::ConstraintTarget. More...

 
Glib::RefPtr< const ConstraintTargetmake_refptr_constrainttarget () const
 Converts this widget to a reference counted Gtk::ConstraintTarget. More...

 
void show ()
 Flags a widget to be displayed. More...

 
void hide ()
 Reverses the effects of show(), causing the widget to be hidden (invisible to the user). More...

 
void queue_draw ()
 Schedules this widget to be redrawn in paint phase of the current or the next frame. More...

 
void queue_resize ()
 This function is only for use in widget implementations. More...

 
void queue_allocate ()
 This function is only for use in widget implementations. More...

 
void size_allocate (const Allocation& allocation, int baseline)
 This is a simple form of allocate() that takes the new position of widget as part of allocation. More...

 
SizeRequestMode get_request_mode () const
 Gets whether the widget prefers a height-for-width layout or a width-for-height layout. More...

 
void measure (Orientation orientation, int for_size, int& minimum, int& natural, int& minimum_baseline, int& natural_baseline) const
 Measures widget in the orientation orientation and for the given for_size. More...

 
void get_preferred_size (Requisition& minimum_size, Requisition& natural_size) const
 Retrieves the minimum and natural size of a widget, taking into account the widget’s preference for height-for-width management. More...

 
void set_layout_manager (const Glib::RefPtr< LayoutManager >& layout_manager)
 Sets the layout manager delegate instance that provides an implementation for measuring and allocating the children of widget. More...

 
void unset_layout_manager ()
 Undoes the effect of a previous call to set_layout_manager(). More...

 
Glib::RefPtr< LayoutManagerget_layout_manager ()
 Retrieves the layout manager set using set_layout_manager(). More...

 
Glib::RefPtr< const LayoutManagerget_layout_manager () const
 Retrieves the layout manager set using set_layout_manager(). More...

 
void add_accelerator (const Glib::ustring& accel_signal, const Glib::RefPtr< AccelGroup >& accel_group, guint accel_key, Gdk::ModifierType accel_mods, AccelFlags accel_flags)
 Installs an accelerator for this widget in accel_group that causes accel_signal to be emitted if the accelerator is activated. More...

 
bool remove_accelerator (const Glib::RefPtr< AccelGroup >& accel_group, guint accel_key, Gdk::ModifierType accel_mods)
 Removes an accelerator from widget, previously installed with add_accelerator(). More...

 
void set_accel_path (const Glib::ustring& accel_path, const Glib::RefPtr< AccelGroup >& accel_group)
 Given an accelerator group, accel_group, and an accelerator path, accel_path, sets up an accelerator in accel_group so whenever the key binding that is defined for accel_path is pressed, widget will be activated. More...

 
bool mnemonic_activate (bool group_cycling)
 Emits the Gtk::Widget::signal_mnemonic_activate() signal. More...

 
bool event (const Glib::RefPtr< Gdk::Event >& gdk_event)
 Rarely-used function. More...

 
bool activate ()
 For widgets that can be “activated” (buttons, menu items, etc.) this function activates them. More...

 
void reparent (Container& new_parent)
 Moves a widget from one Gtk::Container to another, handling reference count issues to avoid destroying the widget. More...

 
void set_can_focus (bool can_focus=true)
 Specifies whether widget can own the input focus. More...

 
bool get_can_focus () const
 Determines whether widget can own the input focus. More...

 
bool has_focus () const
 Determines if the widget has the global input focus. More...

 
bool is_focus () const
 Determines if the widget is the focus widget within its toplevel. More...

 
bool has_visible_focus () const
 Determines if the widget should show a visible indication that it has the global input focus. More...

 
bool grab_focus ()
 Causes widget (or one of its descendents) to have the keyboard focus for the Gtk::Window it's inside. More...

 
void set_focus_on_click (bool focus_on_click=true)
 Sets whether the widget should grab focus when it is clicked with the mouse. More...

 
bool get_focus_on_click () const
 Returns whether the widget should grab focus when it is clicked with the mouse. More...

 
void set_can_target (bool can_target=true)
 Sets whether widget can be the target of pointer events. More...

 
bool get_can_target () const
 Queries whether widget can be the target of pointer events. More...

 
bool has_default () const
 Determines whether widget is the current default widget within its toplevel. More...

 
void set_receives_default (bool receives_default=true)
 Specifies whether widget will be treated as the default widget within its toplevel when it has the focus, even if another widget is the default. More...

 
bool get_receives_default () const
 Determines whether widget is always treated as the default widget within its toplevel when it has the focus, even if another widget is the default. More...

 
bool has_grab () const
 Determines whether the widget is currently grabbing events, so it is the only widget receiving input events (keyboard and mouse). More...

 
bool device_is_shadowed (const Glib::RefPtr< const Gdk::Device >& device)
 Returns true if device has been shadowed by a GTK+ device grab on another widget, so it would stop sending events to widget. More...

 
void add_modal_grab ()
 Block events to everything else than this widget and its children. More...

 
void remove_modal_grab ()
 Remove the modal grab of the widget in case it was previously grabbed. More...

 
void set_name (const Glib::ustring& name)
 Widgets can be named, which allows you to refer to them from a CSS file. More...

 
void unset_name ()
 
Glib::ustring get_name () const
 Retrieves the name of a widget. More...

 
void set_state_flags (StateFlags flags, bool clear=true)
 This function is for use in widget implementations. More...

 
void unset_state_flags (StateFlags flags)
 This function is for use in widget implementations. More...

 
StateFlags get_state_flags () const
 Returns the widget state as a flag set. More...

 
void set_sensitive (bool sensitive=true)
 Sets the sensitivity of a widget. More...

 
bool get_sensitive () const
 Returns the widget’s sensitivity (in the sense of returning the value that has been set using set_sensitive()). More...

 
bool is_sensitive () const
 Returns the widget’s effective sensitivity, which means it is sensitive itself and also its parent widget is sensitive. More...

 
void set_visible (bool visible=true)
 Sets the visibility state of widget. More...

 
bool get_visible () const
 Determines whether the widget is visible. More...

 
bool is_visible () const
 Determines whether the widget and all its parents are marked as visible. More...

 
bool get_is_drawable () const
 Determines whether widget can be drawn to. More...

 
bool get_realized () const
 Determines whether widget is realized. More...

 
bool get_mapped () const
 Whether the widget is mapped. More...

 
void set_child_visible (bool visible=true)
 Sets whether widget should be mapped along with its when its parent is mapped and widget has been shown with show(). More...

 
bool get_child_visible () const
 Gets the value set with set_child_visible(). More...

 
int get_allocated_width () const
 Returns the width that has currently been allocated to widget. More...

 
int get_allocated_height () const
 Returns the height that has currently been allocated to widget. More...

 
int get_allocated_baseline () const
 Returns the baseline that has currently been allocated to widget. More...

 
Allocation get_allocation () const
 Retrieves the widget's location. More...

 
int get_width () const
 Returns the content width of the widget, as passed to its size-allocate implementation. More...

 
int get_height () const
 Returns the content height of the widget, as passed to its size-allocate implementation. More...

 
Containerget_parent ()
 Returns the parent widget of widget. More...

 
const Containerget_parent () const
 Returns the parent widget of widget. More...

 
Rootget_root ()
 Returns the Gtk::Root widget of widget or nullptr if the widget is not contained inside a widget tree with a root widget. More...

 
const Rootget_root () const
 Returns the Gtk::Root widget of widget or nullptr if the widget is not contained inside a widget tree with a root widget. More...

 
Nativeget_native ()
 Returns the GtkNative widget that contains widget, or nullptr if the widget is not contained inside a widget tree with a native ancestor. More...

 
const Nativeget_native () const
 Returns the GtkNative widget that contains widget, or nullptr if the widget is not contained inside a widget tree with a native ancestor. More...

 
bool child_focus (DirectionType direction)
 This function is used by custom widget implementations; if you're writing an app, you’d use grab_focus() to move the focus to a particular widget. More...

 
bool keynav_failed (DirectionType direction)
 This function should be called whenever keyboard navigation within a single widget hits a boundary. More...

 
void error_bell ()
 Notifies the user about an input-related error on this widget. More...

 
void set_size_request (int width=-1, int height=-1)
 Sets the minimum size of a widget; that is, the widget’s size request will be at least width by height. More...

 
void get_size_request (int& width, int& height) const
 Gets the size request that was explicitly set for the widget using set_size_request(). More...

 
void set_opacity (double opacity)
 Request the widget to be rendered partially transparent, with opacity 0 being fully transparent and 1 fully opaque. More...

 
double get_opacity () const
 Fetches the requested opacity for this widget. More...

 
void set_overflow (Overflow overflow)
 Sets how widget treats content that is drawn outside the widget's content area. More...

 
Overflow get_overflow () const
 Returns the value set via set_overflow(). More...

 
Widgetget_ancestor (GType widget_type)
 Gets the first ancestor of widget with type widget_type. More...

 
const Widgetget_ancestor (GType widget_type) const
 Gets the first ancestor of widget with type widget_type. More...

 
int get_scale_factor () const
 Retrieves the internal scale factor that maps from window coordinates to the actual device pixels. More...

 
Glib::RefPtr< Gdk::Displayget_display ()
 Get the Gdk::Display for the toplevel window associated with this widget. More...

 
Glib::RefPtr< const Gdk::Displayget_display () const
 Get the Gdk::Display for the toplevel window associated with this widget. More...

 
Glib::RefPtr< Settingsget_settings ()
 Gets the settings object holding the settings used for this widget. More...

 
Glib::RefPtr< Gdk::Clipboardget_clipboard ()
 This is a utility function to get the clipboard object for the Gdk::Display that widget is using. More...

 
Glib::RefPtr< const Gdk::Clipboardget_clipboard () const
 This is a utility function to get the clipboard object for the Gdk::Display that widget is using. More...

 
Glib::RefPtr< Gdk::Clipboardget_primary_clipboard ()
 This is a utility function to get the primary clipboard object for the Gdk::Display that widget is using. More...

 
Glib::RefPtr< const Gdk::Clipboardget_primary_clipboard () const
 This is a utility function to get the primary clipboard object for the Gdk::Display that widget is using. More...

 
bool get_hexpand () const
 Gets whether the widget would like any available extra horizontal space. More...

 
void set_hexpand (bool expand=true)
 Sets whether the widget would like any available extra horizontal space. More...

 
bool get_hexpand_set () const
 Gets whether set_hexpand() has been used to explicitly set the expand flag on this widget. More...

 
void set_hexpand_set (bool set=true)
 Sets whether the hexpand flag (see get_hexpand()) will be used. More...

 
bool get_vexpand () const
 Gets whether the widget would like any available extra vertical space. More...

 
void set_vexpand (bool expand=true)
 Sets whether the widget would like any available extra vertical space. More...

 
bool get_vexpand_set () const
 Gets whether set_vexpand() has been used to explicitly set the expand flag on this widget. More...

 
void set_vexpand_set (bool set=true)
 Sets whether the vexpand flag (see get_vexpand()) will be used. More...

 
bool compute_expand (Orientation orientation)
 Computes whether a container should give this widget extra space when possible. More...

 
void set_expand (bool expand=true)
 Sets whether the widget would like any available extra space in both directions. More...

 
bool get_support_multidevice () const
 Returns true if widget is multiple pointer aware. More...

 
void set_support_multidevice (bool support_multidevice=true)
 Enables or disables multiple pointer awareness. More...

 
Glib::RefPtr< Atk::Objectget_accessible ()
 Returns the accessible object that describes the widget to an assistive technology. More...

 
Glib::RefPtr< const Atk::Objectget_accessible () const
 Returns the accessible object that describes the widget to an assistive technology. More...

 
Align get_halign () const
 Gets the value of the Gtk::Widget::property_halign() property. More...

 
void set_halign (Align align)
 Sets the horizontal alignment of widget. More...

 
Align get_valign () const
 Gets the value of the Gtk::Widget::property_valign() property. More...

 
void set_valign (Align align)
 Sets the vertical alignment of widget. More...

 
int get_margin_start () const
 Gets the value of the Gtk::Widget::property_margin_start() property. More...

 
void set_margin_start (int margin)
 Sets the start margin of widget. More...

 
int get_margin_end () const
 Gets the value of the Gtk::Widget::property_margin_end() property. More...

 
void set_margin_end (int margin)
 Sets the end margin of widget. More...

 
int get_margin_top () const
 Gets the value of the Gtk::Widget::property_margin_top() property. More...

 
void set_margin_top (int margin)
 Sets the top margin of widget. More...

 
int get_margin_bottom () const
 Gets the value of the Gtk::Widget::property_margin_bottom() property. More...

 
void set_margin_bottom (int margin)
 Sets the bottom margin of widget. More...

 
void set_margin (int margin)
 Set all 4 margins to the same value. More...

 
bool is_ancestor (Widget& ancestor) const
 Determines whether widget is somewhere inside ancestor, possibly with intermediate containers. More...

 
bool translate_coordinates (Widget& dest_widget, int src_x, int src_y, int& dest_x, int& dest_y)
 Translate coordinates relative to src_widget’s allocation to coordinates relative to dest_widget’s allocations. More...

 
bool contains (double x, double y) const
 Tests if the point at ( x, y) is contained in widget. More...

 
Widgetpick (double x, double y, PickFlags flags=PickFlags::DEFAULT)
 Finds the descendant of widget (including widget itself) closest to the screen at the point ( x, y). More...

 
const Widgetpick (double x, double y, PickFlags flags=PickFlags::DEFAULT) const
 Finds the descendant of widget (including widget itself) closest to the screen at the point ( x, y). More...

 
void add_controller (const Glib::RefPtr< EventController >& controller)
 Adds controller to widget so that it will receive events. More...

 
void remove_controller (const Glib::RefPtr< EventController >& controller)
 Removes controller from widget, so that it doesn't process events anymore. More...

 
void reset_style ()
 Updates the style context of widget and all descendants by updating its widget path. More...

 
Glib::RefPtr< Pango::Contextcreate_pango_context ()
 Creates a new Pango::Context with the appropriate font map, font options, font description, and base direction for drawing text for this widget. More...

 
Glib::RefPtr< Pango::Contextget_pango_context ()
 Gets a Pango::Context with the appropriate font map, font description, and base direction for this widget. More...

 
void set_font_options (const Cairo::FontOptions& options)
 Sets the #cairo_font_options_t used for Pango rendering in this widget. More...

 
void unset_font_options ()
 Undoes the effect of previous calls to set_font_options(). More...

 
Cairo::FontOptions get_font_options () const
 Returns the #cairo_font_options_t used for Pango rendering. More...

 
Glib::RefPtr< Pango::Layoutcreate_pango_layout (const Glib::ustring& text)
 Creates a new Pango::Layout with the appropriate font map, font description, and base direction for drawing text for this widget. More...

 
void set_direction (TextDirection dir)
 Sets the reading direction on a particular widget. More...

 
TextDirection get_direction () const
 Gets the reading direction for a particular widget. More...

 
void input_shape_combine_region (const Cairo::RefPtr< const Cairo::Region >& region)
 Sets an input shape for this widget’s GDK surface. More...

 
void set_cursor (const Glib::RefPtr< Gdk::Cursor >& cursor)
 Sets the cursor to be shown when pointer devices point towards widget. More...

 
void set_cursor (const Glib::ustring& name={})
 Sets a named cursor to be shown when pointer devices point towards the widget. More...

 
Glib::RefPtr< Gdk::Cursorget_cursor ()
 Queries the cursor set via set_cursor(). More...

 
Glib::RefPtr< const Gdk::Cursorget_cursor () const
 Queries the cursor set via set_cursor(). More...

 
std::vector< Widget* > list_mnemonic_labels ()
 Returns a newly allocated list of the widgets, normally labels, for which this widget is the target of a mnemonic (see for example, Gtk::Label::set_mnemonic_widget()). More...

 
std::vector< const Widget* > list_mnemonic_labels () const
 Returns a newly allocated list of the widgets, normally labels, for which this widget is the target of a mnemonic (see for example, Gtk::Label::set_mnemonic_widget()). More...

 
void add_mnemonic_label (Widget& label)
 Adds a widget to the list of mnemonic labels for this widget. More...

 
void remove_mnemonic_label (Widget& label)
 Removes a widget from the list of mnemonic labels for this widget. More...

 
bool drag_check_threshold (int start_x, int start_y, int current_x, int current_y)
 Checks to see if a mouse drag starting at ( start_x, start_y) and ending at ( current_x, current_y) has passed the GTK drag threshold, and thus should trigger the beginning of a drag-and-drop operation. More...

 
Glib::RefPtr< Gdk::FrameClockget_frame_clock ()
 Obtains the frame clock for a widget. More...

 
Glib::RefPtr< const Gdk::FrameClockget_frame_clock () const
 Obtains the frame clock for a widget. More...

 
void set_parent (Widget& parent)
 This function is useful only when implementing subclasses of Gtk::Widget. More...

 
void unparent ()
 This function is only for use in widget implementations. More...

 
void map ()
 This function is only for use in widget implementations. More...

 
void unmap ()
 This function is only for use in widget implementations. More...

 
void trigger_tooltip_query ()
 Triggers a tooltip query on the display where the toplevel of widget is located. More...

 
void set_tooltip_text (const Glib::ustring& text)
 Sets text as the contents of the tooltip. More...

 
Glib::ustring get_tooltip_text () const
 Gets the contents of the tooltip for widget. More...

 
void set_tooltip_markup (const Glib::ustring& markup)
 Sets markup as the contents of the tooltip, which is marked up with the Pango text markup language. More...

 
Glib::ustring get_tooltip_markup () const
 Gets the contents of the tooltip for widget. More...

 
void set_has_tooltip (bool has_tooltip=TRUE)
 Sets the has-tooltip property on widget to has_tooltip. More...

 
bool get_has_tooltip () const
 Returns the current value of the has-tooltip property. More...

 
bool in_destruction () const
 Returns whether the widget is currently being destroyed. More...

 
Glib::RefPtr< StyleContextget_style_context ()
 Returns the style context associated to widget. More...

 
Glib::RefPtr< const StyleContextget_style_context () const
 Returns the style context associated to widget. More...

 
Gdk::ModifierType get_modifier_mask (Gdk::ModifierIntent intent)
 Returns the modifier mask the widget’s windowing system backend uses for a particular purpose. More...

 
guint add_tick_callback (const SlotTick& slot)
 Queues an animation frame update and adds a callback to be called before each frame. More...

 
void remove_tick_callback (guint id)
 Removes a tick callback previously registered with add_tick_callback(). More...

 
void insert_action_group (const Glib::ustring& name, const Glib::RefPtr< Gio::ActionGroup >& group)
 Inserts group into widget. More...

 
void remove_action_group (const Glib::ustring& name)
 Removes a group from the widget. More...

 
bool activate_action (const Glib::ustring& name, const Glib::VariantBase& args)
 Looks up the action in the action groups associated with the widget and its ancestors, and activates it. More...

 
bool activate_action (const Glib::ustring& name)
 A activate_action() convenience overload. More...

 
void activate_default ()
 Activate the default.activate action from widget. More...

 
void set_font_map (const Glib::RefPtr< Pango::FontMap >& font_map)
 Sets the font map to use for Pango rendering. More...

 
Glib::RefPtr< Pango::FontMapget_font_map ()
 Gets the font map that has been set with set_font_map(). More...

 
Glib::RefPtr< const Pango::FontMapget_font_map () const
 Gets the font map that has been set with set_font_map(). More...

 
Widgetget_first_child ()
 
const Widgetget_first_child () const
 
Widgetget_last_child ()
 
const Widgetget_last_child () const
 
Widgetget_next_sibling ()
 
const Widgetget_next_sibling () const
 
Widgetget_prev_sibling ()
 
const Widgetget_prev_sibling () const
 
Glib::RefPtr< Gio::ListModelobserve_children ()
 Returns a ListModel to track the children of widget. More...

 
Glib::RefPtr< const Gio::ListModelobserve_children () const
 Returns a ListModel to track the children of widget. More...

 
Glib::RefPtr< Gio::ListModelobserve_controllers ()
 Returns a ListModel to track the Gtk::EventControllers of widget. More...

 
Glib::RefPtr< const Gio::ListModelobserve_controllers () const
 Returns a ListModel to track the Gtk::EventControllers of widget. More...

 
void insert_after (Widget& parent, const Widget& previous_sibling)
 Inserts the Widget into the child widget list of parent after previous_sibling. More...

 
void insert_before (Widget& parent, const Widget& next_sibling)
 Inserts the Widget into the child widget list of parent before next_sibling. More...

 
void insert_at_start (Widget& parent)
 Inserts the Widget at the beginning of the child widget list of parent. More...

 
void insert_at_end (Widget& parent)
 Inserts the Widget at the end of the child widget list of parent. More...

 
void snapshot_child (Widget& child, const Glib::RefPtr< Gtk::Snapshot >& snapshot)
 When a widget receives a call to the snapshot function, it must send synthetic Gtk::Widget::signal_snapshot() calls to all children. More...

 
bool should_layout () const
 Returns whether widget should contribute to the measuring and allocation of its parent. More...

 
void add_css_class (const Glib::ustring& css_class)
 Adds css_class to widget. More...

 
void remove_css_class (const Glib::ustring& css_class)
 Removes css_class from widget. More...

 
bool has_css_class (const Glib::ustring& css_class) const
 Returns whether css_class is currently applied to widget. More...

 
Glib::SignalProxy< void()> signal_show ()
 
Glib::SignalProxy< void()> signal_hide ()
 
Glib::SignalProxy< void()> signal_map ()
 Emitted on mapping of a widget to the screen. More...

 
Glib::SignalProxy< void()> signal_unmap ()
 
Glib::SignalProxy< void()> signal_realize ()
 Emitted on realization of a widget. More...

 
Glib::SignalProxy< void()> signal_unrealize ()
 
Glib::SignalProxy< void(int, int, int)> signal_size_allocate ()
 
Glib::SignalProxy< void(Gtk::StateFlags)> signal_state_flags_changed ()
 
Glib::SignalProxy< void(TextDirection)> signal_direction_changed ()
 
Glib::SignalProxy< void(bool)> signal_grab_notify ()
 
Glib::SignalProxy< bool(bool)> signal_mnemonic_activate ()
 
Glib::SignalProxy< void()> signal_accel_closures_changed ()
 
Glib::SignalProxy< bool()> signal_popup_menu ()
 
Glib::SignalProxy< bool(int, int, bool, const Glib::RefPtr< Tooltip >&)> signal_query_tooltip ()
 
Glib::PropertyProxy< Glib::ustringproperty_name ()
 The name of the widget. More...

 
Glib::PropertyProxy_ReadOnly< Glib::ustringproperty_name () const
 The name of the widget. More...

 
Glib::PropertyProxy_ReadOnly< Container* > property_parent () const
 The parent widget of this widget. More...

 
Glib::PropertyProxy_ReadOnly< Root* > property_root () const
 The Gtk::Root widget of the widget tree containing this widget or nullptr if the widget is not contained in a root widget. More...

 
Glib::PropertyProxy< int > property_width_request ()
 Override for width request of the widget, or -1 if natural request should be used. More...

 
Glib::PropertyProxy_ReadOnly< int > property_width_request () const
 Override for width request of the widget, or -1 if natural request should be used. More...

 
Glib::PropertyProxy< int > property_height_request ()
 Override for height request of the widget, or -1 if natural request should be used. More...

 
Glib::PropertyProxy_ReadOnly< int > property_height_request () const
 Override for height request of the widget, or -1 if natural request should be used. More...

 
Glib::PropertyProxy< bool > property_visible ()
 Whether the widget is visible. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_visible () const
 Whether the widget is visible. More...

 
Glib::PropertyProxy< bool > property_sensitive ()
 Whether the widget responds to input. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_sensitive () const
 Whether the widget responds to input. More...

 
Glib::PropertyProxy< bool > property_can_focus ()
 Whether the widget can accept the input focus. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_can_focus () const
 Whether the widget can accept the input focus. More...

 
Glib::PropertyProxy< bool > property_has_focus ()
 Whether the widget has the input focus. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_has_focus () const
 Whether the widget has the input focus. More...

 
Glib::PropertyProxy< bool > property_is_focus ()
 Whether the widget is the focus widget within the toplevel. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_is_focus () const
 Whether the widget is the focus widget within the toplevel. More...

 
Glib::PropertyProxy< bool > property_can_target ()
 Whether the widget can receive pointer events. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_can_target () const
 Whether the widget can receive pointer events. More...

 
Glib::PropertyProxy< bool > property_focus_on_click ()
 Whether the widget should grab focus when it is clicked with the mouse. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_focus_on_click () const
 Whether the widget should grab focus when it is clicked with the mouse. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_has_default () const
 Whether the widget is the default widget. More...

 
Glib::PropertyProxy< bool > property_receives_default ()
 If true, the widget will receive the default action when it is focused. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_receives_default () const
 If true, the widget will receive the default action when it is focused. More...

 
Glib::PropertyProxy< Glib::RefPtr< Gdk::Cursor > > property_cursor ()
 The cursor used by widget. More...

 
Glib::PropertyProxy_ReadOnly< Glib::RefPtr< Gdk::Cursor > > property_cursor () const
 The cursor used by widget. More...

 
Glib::PropertyProxy< bool > property_has_tooltip ()
 Enables or disables the emission of Gtk::Widget::signal_query_tooltip() on widget. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_has_tooltip () const
 Enables or disables the emission of Gtk::Widget::signal_query_tooltip() on widget. More...

 
Glib::PropertyProxy< Glib::ustringproperty_tooltip_markup ()
 Sets the text of tooltip to be the given string, which is marked up with the [Pango text markup language][PangoMarkupFormat]. More...

 
Glib::PropertyProxy_ReadOnly< Glib::ustringproperty_tooltip_markup () const
 Sets the text of tooltip to be the given string, which is marked up with the [Pango text markup language][PangoMarkupFormat]. More...

 
Glib::PropertyProxy< Glib::ustringproperty_tooltip_text ()
 Sets the text of tooltip to be the given string. More...

 
Glib::PropertyProxy_ReadOnly< Glib::ustringproperty_tooltip_text () const
 Sets the text of tooltip to be the given string. More...

 
Glib::PropertyProxy< Alignproperty_halign ()
 How to distribute horizontal space if widget gets extra space, see Gtk::Align. More...

 
Glib::PropertyProxy_ReadOnly< Alignproperty_halign () const
 How to distribute horizontal space if widget gets extra space, see Gtk::Align. More...

 
Glib::PropertyProxy< Alignproperty_valign ()
 How to distribute vertical space if widget gets extra space, see Gtk::Align. More...

 
Glib::PropertyProxy_ReadOnly< Alignproperty_valign () const
 How to distribute vertical space if widget gets extra space, see Gtk::Align. More...

 
Glib::PropertyProxy< int > property_margin_start ()
 Margin on start of widget, horizontally. More...

 
Glib::PropertyProxy_ReadOnly< int > property_margin_start () const
 Margin on start of widget, horizontally. More...

 
Glib::PropertyProxy< int > property_margin_end ()
 Margin on end of widget, horizontally. More...

 
Glib::PropertyProxy_ReadOnly< int > property_margin_end () const
 Margin on end of widget, horizontally. More...

 
Glib::PropertyProxy< int > property_margin_top ()
 Margin on top side of widget. More...

 
Glib::PropertyProxy_ReadOnly< int > property_margin_top () const
 Margin on top side of widget. More...

 
Glib::PropertyProxy< int > property_margin_bottom ()
 Margin on bottom side of widget. More...

 
Glib::PropertyProxy_ReadOnly< int > property_margin_bottom () const
 Margin on bottom side of widget. More...

 
Glib::PropertyProxy< int > property_margin ()
 Sets all four sides' margin at once. More...

 
Glib::PropertyProxy_ReadOnly< int > property_margin () const
 Sets all four sides' margin at once. More...

 
Glib::PropertyProxy< bool > property_hexpand ()
 Whether to expand horizontally. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_hexpand () const
 Whether to expand horizontally. More...

 
Glib::PropertyProxy< bool > property_hexpand_set ()
 Whether to use the Gtk::Widget::property_hexpand() property. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_hexpand_set () const
 Whether to use the Gtk::Widget::property_hexpand() property. More...

 
Glib::PropertyProxy< bool > property_vexpand ()
 Whether to expand vertically. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_vexpand () const
 Whether to expand vertically. More...

 
Glib::PropertyProxy< bool > property_vexpand_set ()
 Whether to use the Gtk::Widget::property_vexpand() property. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_vexpand_set () const
 Whether to use the Gtk::Widget::property_vexpand() property. More...

 
Glib::PropertyProxy< bool > property_expand ()
 Whether to expand in both directions. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_expand () const
 Whether to expand in both directions. More...

 
Glib::PropertyProxy< double > property_opacity ()
 The requested opacity of the widget. More...

 
Glib::PropertyProxy_ReadOnly< double > property_opacity () const
 The requested opacity of the widget. More...

 
Glib::PropertyProxy< Overflowproperty_overflow ()
 How content outside the widget's content area is treated. More...

 
Glib::PropertyProxy_ReadOnly< Overflowproperty_overflow () const
 How content outside the widget's content area is treated. More...

 
Glib::PropertyProxy_ReadOnly< int > property_scale_factor () const
 The scale factor of the widget. More...

 
Glib::PropertyProxy_ReadOnly< Glib::ustringproperty_css_name () const
 The name of this widget in the CSS tree. More...

 
Glib::PropertyProxy< Glib::RefPtr< LayoutManager > > property_layout_manager ()
 The Gtk::LayoutManager instance to use to compute the preferred size of the widget, and allocate its children. More...

 
Glib::PropertyProxy_ReadOnly< Glib::RefPtr< LayoutManager > > property_layout_manager () const
 The Gtk::LayoutManager instance to use to compute the preferred size of the widget, and allocate its children. More...

 
- Public Member Functions inherited from Gtk::Object
 Object (Object&& src) noexcept
 
Objectoperator= (Object&& src) noexcept
 
 ~Object () noexcept override
 
- Public Member Functions inherited from Glib::Object
 Object (const Object &)=delete
 
Objectoperator= (const Object &)=delete
 
 Object (Object &&src) noexcept
 
Objectoperator= (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::Objectwrap (GObject *object, bool take_copy=false)
 
- Public Member Functions inherited from Glib::ObjectBase
 ObjectBase (const ObjectBase &)=delete
 
ObjectBaseoperator= (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 ()
 
trackableoperator= (const trackable &src)
 
trackableoperator= (trackable &&src) noexcept
 
void remove_destroy_notify_callback (notifiable *data) const
 
- Public Member Functions inherited from Gtk::Buildable
 Buildable (Buildable&& src) noexcept
 
Buildableoperator= (Buildable&& src) noexcept
 
 ~Buildable () noexcept override
 
GtkBuildable* gobj ()
 Provides access to the underlying C GObject. More...

 
const GtkBuildable* gobj () const
 Provides access to the underlying C GObject. More...

 
void set_name (const Glib::ustring& name)
 Sets the name of the buildable object. More...

 
Glib::ustring get_name () const
 Gets the name of the buildable object. More...

 
- Public Member Functions inherited from Glib::Interface
 Interface ()
 
 Interface (Interface &&src) noexcept
 
Interfaceoperator= (Interface &&src) noexcept
 
 Interface (const Glib::Interface_Class &interface_class)
 
 Interface (GObject *castitem)
 
 ~Interface () noexcept override
 
 Interface (const Interface &)=delete
 
Interfaceoperator= (const Interface &)=delete
 
GObject * gobj ()
 
const GObject * gobj () const
 
- Public Member Functions inherited from Gtk::ConstraintTarget
 ConstraintTarget (ConstraintTarget&& src) noexcept
 
ConstraintTargetoperator= (ConstraintTarget&& src) noexcept
 
 ~ConstraintTarget () noexcept override
 
GtkConstraintTarget* gobj ()
 Provides access to the underlying C GObject. More...

 
const GtkConstraintTarget* gobj () const
 Provides access to the underlying C GObject. More...

 
- Public Member Functions inherited from Atk::Implementor
 Implementor (Implementor &&src) noexcept
 
Implementoroperator= (Implementor &&src) noexcept
 
 ~Implementor () noexcept override
 
AtkImplementor * gobj ()
 
const AtkImplementor * gobj () const
 
Glib::RefPtr< Atk::Implementorwrap (AtkImplementor *object, bool take_copy=false)
 

Static Public Member Functions

static GType get_type ()
 Get the GType for this class, for use with the underlying GObject type system. More...

 
- Static Public Member Functions inherited from Gtk::Frame
static GType get_type ()
 Get the GType for this class, for use with the underlying GObject type system. More...

 
- Static Public Member Functions inherited from Gtk::Bin
static GType get_type ()
 Get the GType for this class, for use with the underlying GObject type system. More...

 
- Static Public Member Functions inherited from Gtk::Container
static GType get_type ()
 Get the GType for this class, for use with the underlying GObject type system. More...

 
- Static Public Member Functions inherited from Gtk::Widget
static GType get_type ()
 Get the GType for this class, for use with the underlying GObject type system. More...

 
static Widgetget_current_modal_grab ()
 Retrieve the widget which is currently grabbing all events. More...

 
static void set_default_direction (TextDirection dir)
 Sets the default reading direction for widgets where the direction has not been explicitly set by set_direction(). More...

 
static TextDirection get_default_direction ()
 Obtains the current default reading direction. More...

 
- Static Public Member Functions inherited from Gtk::Buildable
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...

 
- Static Public Member Functions inherited from Gtk::ConstraintTarget
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...

 
- Static Public Member Functions inherited from Atk::Implementor
static void add_interface (GType gtype_implementer)
 
static GType get_type ()
 

Related Functions

(Note that these are not member functions.)

Gtk::AspectFramewrap (GtkAspectFrame* object, bool take_copy=false)
 A Glib::wrap() method for this object. More...

 

Additional Inherited Members

- Public Types inherited from Gtk::Container
using ForeachSlot = sigc::slot< void(Widget&)>
 A slot to invoke with each child iterated over by foreach() or forall(). More...

 
- Public Types inherited from Gtk::Widget
using SlotTick = sigc::slot< bool(const Glib::RefPtr< Gdk::FrameClock >&)>
 Callback type for adding a function to update animations. 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
 
- Protected Member Functions inherited from Gtk::Frame
virtual void compute_child_allocation_vfunc (Allocation& allocation)
 
- Protected Member Functions inherited from Gtk::Bin
 Bin ()
 This constructor is protected because only derived classes should be instantiated. More...

 
- Protected Member Functions inherited from Gtk::Container
 Container ()
 
virtual GType child_type_vfunc () const
 Implements child_type(). More...

 
virtual void forall_vfunc (const ForeachSlot& slot)
 Invokes a callback on all non-internal children of the container. More...

 
virtual void set_focus_child_vfunc (Widget* child)
 Sets the focused child of container. More...

 
virtual void on_add (Widget* widget)
 This is a default handler for the signal signal_add(). More...

 
virtual void on_remove (Widget* widget)
 This is a default handler for the signal signal_remove(). More...

 
- Protected Member Functions inherited from Gtk::Widget
virtual void root_vfunc ()
 
virtual void unroot_vfunc ()
 
virtual SizeRequestMode get_request_mode_vfunc () const
 
virtual void measure_vfunc (Orientation orientation, int for_size, int& minimum, int& natural, int& minimum_baseline, int& natural_baseline) const
 
virtual bool grab_focus_vfunc ()
 
virtual Glib::RefPtr< Atk::Objectget_accessible_vfunc ()
 
virtual void compute_expand_vfunc (bool& hexpand_p, bool& vexpand_p)
 
virtual bool contains_vfunc (double x, double y) const
 
virtual void snapshot_vfunc (const Glib::RefPtr< Gtk::Snapshot >& snapshot)
 
 Widget ()
 
void realize ()
 Creates the GDK (windowing system) resources associated with a widget. More...

 
void unrealize ()
 This function is only useful in widget implementations. More...

 
void realize_if_needed ()
 
void set_focus_child (Widget& child)
 Set child as the current focus child of widget. More...

 
void unset_focus_child ()
 Unsets the focus child of the widget. More...

 
Widgetget_focus_child ()
 Returns the current focus child of widget. More...

 
const Widgetget_focus_child () const
 Returns the current focus child of widget. More...

 
virtual void on_show ()
 This is a default handler for the signal signal_show(). More...

 
virtual void on_hide ()
 This is a default handler for the signal signal_hide(). More...

 
virtual void on_map ()
 This is a default handler for the signal signal_map(). More...

 
virtual void on_unmap ()
 This is a default handler for the signal signal_unmap(). More...

 
virtual void on_realize ()
 This is a default handler for the signal signal_realize(). More...

 
virtual void on_unrealize ()
 This is a default handler for the signal signal_unrealize(). More...

 
virtual void on_size_allocate (int width, int height, int baseline)
 This is a default handler for the signal signal_size_allocate(). More...

 
virtual void on_state_flags_changed (Gtk::StateFlags previous_state_flags)
 This is a default handler for the signal signal_state_flags_changed(). More...

 
virtual void on_direction_changed (TextDirection direction)
 This is a default handler for the signal signal_direction_changed(). More...

 
virtual void on_grab_notify (bool was_grabbed)
 This is a default handler for the signal signal_grab_notify(). More...

 
virtual bool on_mnemonic_activate (bool group_cycling)
 This is a default handler for the signal signal_mnemonic_activate(). More...

 
virtual bool on_popup_menu ()
 This is a default handler for the signal signal_popup_menu(). More...

 
virtual bool on_query_tooltip (int x, int y, bool keyboard_tooltip, const Glib::RefPtr< Tooltip >& tooltip)
 This is a default handler for the signal signal_query_tooltip(). More...

 
- 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
 
ObjectBaseoperator= (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 Gtk::Buildable
 Buildable ()
 You should derive from this class to use it. More...

 
- Protected Member Functions inherited from Gtk::ConstraintTarget
 ConstraintTarget ()
 You should derive from this class to use it. More...

 
- Protected Member Functions inherited from Atk::Implementor
 Implementor ()
 
virtual Glib::RefPtr< Objectref_accessibile_vfunc ()
 

Detailed Description

A frame that constrains its child to a particular aspect ratio.

The Gtk::AspectFrame is useful when you want pack a widget so that it can resize but always retains the same aspect ratio. For instance, one might be drawing a small preview of a larger image. Because it derives from Gtk::Frame, it can draw a label and a frame around the child. The frame will be "shrink-wrapped" to the size of the child.

Constructor & Destructor Documentation

Gtk::AspectFrame::AspectFrame ( AspectFrame&&  src)
noexcept
Gtk::AspectFrame::AspectFrame ( const AspectFrame )
delete
Gtk::AspectFrame::~AspectFrame ( )
overridenoexcept
Gtk::AspectFrame::AspectFrame ( const Glib::ustring label = {},
Align  xalign = Gtk::Align::CENTER,
Align  yalign = Gtk::Align::CENTER,
float  ratio = 1.0,
bool  obey_child = false 
)
explicit

Constructor to create a new AspectFrame object.

Parameters
labelLabel text.
xalignHorizontal alignment of the child within the allocation of this AspectFrame. For possible values, see Gtk::Align.
yalignVertical alignment of the child within the allocation of this AspectFrame. For possible values, see Gtk::Align.
ratioThe desired aspect ratio.
obey_childIf true, ratio is ignored and the aspect ratio is taken from the requisition of the child.
Gtk::AspectFrame::AspectFrame ( const Glib::ustring label,
float  xalign,
float  yalign,
float  ratio = 1.0,
bool  obey_child = false 
)
explicit

Constructor to create a new AspectFrame object.

Parameters
labelLabel text.
xalignHorizontal alignment of the child within the allocation of this AspectFrame. This ranges from 0.0 (left aligned) to 1.0 (right aligned).
yalignVertical alignment of the child within the allocation of this AspectFrame. This ranges from 0.0 (top aligned) to 1.0 (bottom aligned).
ratioThe desired aspect ratio.
obey_childIf true, ratio is ignored and the aspect ratio is taken from the requisition of the child.

Member Function Documentation

static GType Gtk::AspectFrame::get_type ( )
static

Get the GType for this class, for use with the underlying GObject type system.

GtkAspectFrame* Gtk::AspectFrame::gobj ( )
inline

Provides access to the underlying C GObject.

const GtkAspectFrame* Gtk::AspectFrame::gobj ( ) const
inline

Provides access to the underlying C GObject.

AspectFrame& Gtk::AspectFrame::operator= ( AspectFrame&&  src)
noexcept
AspectFrame& Gtk::AspectFrame::operator= ( const AspectFrame )
delete
Glib::PropertyProxy< bool > Gtk::AspectFrame::property_obey_child ( )

Force aspect ratio to match that of the frame’s child.

Default value: true

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< bool > Gtk::AspectFrame::property_obey_child ( ) const

Force aspect ratio to match that of the frame’s child.

Default value: true

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< float > Gtk::AspectFrame::property_ratio ( )

Aspect ratio if obey_child is false.

Default value: 1

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< float > Gtk::AspectFrame::property_ratio ( ) const

Aspect ratio if obey_child is false.

Default value: 1

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< float > Gtk::AspectFrame::property_xalign ( )

X alignment of the child.

Default value: 0.5

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< float > Gtk::AspectFrame::property_xalign ( ) const

X alignment of the child.

Default value: 0.5

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< float > Gtk::AspectFrame::property_yalign ( )

Y alignment of the child.

Default value: 0.5

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< float > Gtk::AspectFrame::property_yalign ( ) const

Y alignment of the child.

Default value: 0.5

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
void Gtk::AspectFrame::set ( float  xalign,
float  yalign,
float  ratio,
bool  obey_child 
)

Set the properties of this AspectFrame.

Parameters
xalignHorizontal alignment of the child within the allocation of this AspectFrame. This ranges from 0.0 (left aligned) to 1.0 (right aligned).
yalignVertical alignment of the child within the allocation of this AspectFrame. This ranges from 0.0 (top aligned) to 1.0 (bottom aligned).
ratioThe desired aspect ratio.
obey_childIf true, ratio is ignored and the aspect ratio is taken from the requisition of the child.
void Gtk::AspectFrame::set ( Align  xalign,
Align  yalign,
float  ratio,
bool  obey_child 
)

Set the properties of this AspectFrame.

Parameters
xalignHorizontal alignment of the child within the allocation of this AspectFrame. For possible values, see Gtk::Align.
yalignVertical alignment of the child within the allocation of this AspectFrame. For possible values, see Gtk::Align.
ratioThe desired aspect ratio.
obey_childIf true, ratio is ignored and the aspect ratio is taken from the requisition of the child.

Friends And Related Function Documentation

Gtk::AspectFrame* wrap ( GtkAspectFrame *  object,
bool  take_copy = false 
)
related

A Glib::wrap() method for this object.

Parameters
objectThe C instance.
take_copyFalse 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.