forked from AuroraMiddleware/gtk
ca71119a40
Replace the gdk_surface_move_to_rect() API with a new GdkSurface method called gdk_surface_present_popup() taking a new GdkPopupLayout object describing how they should be laid out on screen. The layout properties provided are the same as the ones used with gdk_surface_move_to_rect(), except they are now set up using GdkPopupLayout. Calling gdk_surface_present_popup() will either show the popup at the position described using the popup layout object and a new unconstrained size, or reposition it accordingly. In some situations, such as when a popup is set to autohide, presenting may immediately fail, in case the grab was not granted by the display server. After a successful present, the result of the layout can be queried using the following methods: * gdk_surface_get_position() - to get the position relative to its parent * gdk_surface_get_width() - to get the current width * gdk_surface_get_height() - to get the current height * gdk_surface_get_rect_anchor() - to get the anchor point on the anchor rectangle the popup was effectively positioned against given constraints defined by the environment and the layout rules provided via GdkPopupLayout. * gdk_surface_get_surface_anchor() - the same as the one above but for the surface anchor. A new signal replaces the old "moved-to-rect" one - "popup-layout-changed". However, it is only intended to be emitted when the layout changes implicitly by the windowing system, for example if the monitor resolution changed, or the parent window moved.
137 lines
5.5 KiB
C
137 lines
5.5 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 2020 Red Hat
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef __GDK_POPUP_LAYOUT_H__
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#define __GDK_POPUP_LAYOUT_H__
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#if !defined (__GDK_H_INSIDE__) && !defined (GTK_COMPILATION)
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#error "Only <gdk/gdk.h> can be included directly."
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#endif
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#include <gdk/gdkversionmacros.h>
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#include <gdk/gdktypes.h>
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G_BEGIN_DECLS
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/**
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* GdkAnchorHints:
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* @GDK_ANCHOR_FLIP_X: allow flipping anchors horizontally
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* @GDK_ANCHOR_FLIP_Y: allow flipping anchors vertically
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* @GDK_ANCHOR_SLIDE_X: allow sliding surface horizontally
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* @GDK_ANCHOR_SLIDE_Y: allow sliding surface vertically
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* @GDK_ANCHOR_RESIZE_X: allow resizing surface horizontally
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* @GDK_ANCHOR_RESIZE_Y: allow resizing surface vertically
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* @GDK_ANCHOR_FLIP: allow flipping anchors on both axes
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* @GDK_ANCHOR_SLIDE: allow sliding surface on both axes
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* @GDK_ANCHOR_RESIZE: allow resizing surface on both axes
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*
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* Positioning hints for aligning a surface relative to a rectangle.
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*
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* These hints determine how the surface should be positioned in the case that
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* the surface would fall off-screen if placed in its ideal position.
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*
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* For example, %GDK_ANCHOR_FLIP_X will replace %GDK_GRAVITY_NORTH_WEST with
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* %GDK_GRAVITY_NORTH_EAST and vice versa if the surface extends beyond the left
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* or right edges of the monitor.
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*
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* If %GDK_ANCHOR_SLIDE_X is set, the surface can be shifted horizontally to fit
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* on-screen. If %GDK_ANCHOR_RESIZE_X is set, the surface can be shrunken
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* horizontally to fit.
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*
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* In general, when multiple flags are set, flipping should take precedence over
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* sliding, which should take precedence over resizing.
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*/
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typedef enum
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{
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GDK_ANCHOR_FLIP_X = 1 << 0,
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GDK_ANCHOR_FLIP_Y = 1 << 1,
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GDK_ANCHOR_SLIDE_X = 1 << 2,
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GDK_ANCHOR_SLIDE_Y = 1 << 3,
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GDK_ANCHOR_RESIZE_X = 1 << 4,
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GDK_ANCHOR_RESIZE_Y = 1 << 5,
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GDK_ANCHOR_FLIP = GDK_ANCHOR_FLIP_X | GDK_ANCHOR_FLIP_Y,
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GDK_ANCHOR_SLIDE = GDK_ANCHOR_SLIDE_X | GDK_ANCHOR_SLIDE_Y,
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GDK_ANCHOR_RESIZE = GDK_ANCHOR_RESIZE_X | GDK_ANCHOR_RESIZE_Y,
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} GdkAnchorHints;
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/**
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* GdkPopupLayout:
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*/
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typedef struct _GdkPopupLayout GdkPopupLayout;
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#define GDK_TYPE_POPUP_LAYOUT (gdk_popup_layout_get_type ())
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GDK_AVAILABLE_IN_ALL
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GType gdk_popup_layout_get_type (void);
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GDK_AVAILABLE_IN_ALL
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GdkPopupLayout * gdk_popup_layout_new (const GdkRectangle *anchor_rect,
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GdkGravity rect_anchor,
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GdkGravity surface_anchor);
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GDK_AVAILABLE_IN_ALL
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GdkPopupLayout * gdk_popup_layout_ref (GdkPopupLayout *layout);
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GDK_AVAILABLE_IN_ALL
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void gdk_popup_layout_unref (GdkPopupLayout *layout);
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GDK_AVAILABLE_IN_ALL
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GdkPopupLayout * gdk_popup_layout_copy (GdkPopupLayout *layout);
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GDK_AVAILABLE_IN_ALL
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void gdk_popup_layout_set_anchor_rect (GdkPopupLayout *layout,
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const GdkRectangle *anchor_rect);
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GDK_AVAILABLE_IN_ALL
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const GdkRectangle * gdk_popup_layout_get_anchor_rect (GdkPopupLayout *layout);
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GDK_AVAILABLE_IN_ALL
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void gdk_popup_layout_set_rect_anchor (GdkPopupLayout *layout,
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GdkGravity anchor);
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GDK_AVAILABLE_IN_ALL
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GdkGravity gdk_popup_layout_get_rect_anchor (GdkPopupLayout *layout);
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GDK_AVAILABLE_IN_ALL
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void gdk_popup_layout_set_surface_anchor (GdkPopupLayout *layout,
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GdkGravity anchor);
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GDK_AVAILABLE_IN_ALL
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GdkGravity gdk_popup_layout_get_surface_anchor (GdkPopupLayout *layout);
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GDK_AVAILABLE_IN_ALL
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void gdk_popup_layout_set_anchor_hints (GdkPopupLayout *layout,
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GdkAnchorHints anchor_hints);
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GDK_AVAILABLE_IN_ALL
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GdkAnchorHints gdk_popup_layout_get_anchor_hints (GdkPopupLayout *layout);
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GDK_AVAILABLE_IN_ALL
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void gdk_popup_layout_set_offset (GdkPopupLayout *layout,
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int dx,
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int dy);
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GDK_AVAILABLE_IN_ALL
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void gdk_popup_layout_get_offset (GdkPopupLayout *layout,
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int *dx,
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int *dy);
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G_END_DECLS
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#endif /* __GDK_POPUP_LAYOUT_H__ */
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