8c89ea5f0a
Previously picking was done on an int (x,y) to address a particular pixel. While `int` was the minimum precision required, it was also an unnecessary type conversion. The callers (input events mainly) all provide float coordinates and the internal picking calculations also have always used floats. So it was inconsistent and unnecessary to drop to integer precision in between those. ABI break: This changes the parameter types for public function `clutter_stage_get_actor_at_pos`, but its documentation is already sufficiently vague to not need changing. https://gitlab.gnome.org/GNOME/mutter/merge_requests/844
149 lines
8.2 KiB
C
149 lines
8.2 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Copyright (C) 2010 Intel Corporation.
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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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#ifndef __CLUTTER_STAGE_PRIVATE_H__
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#define __CLUTTER_STAGE_PRIVATE_H__
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#include <clutter/clutter-stage-window.h>
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#include <clutter/clutter-stage.h>
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#include <clutter/clutter-input-device.h>
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#include <clutter/clutter-private.h>
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#include <cogl/cogl.h>
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G_BEGIN_DECLS
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typedef struct _ClutterStageQueueRedrawEntry ClutterStageQueueRedrawEntry;
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/* stage */
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ClutterStageWindow *_clutter_stage_get_default_window (void);
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void _clutter_stage_paint_view (ClutterStage *stage,
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ClutterStageView *view,
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const cairo_rectangle_int_t *clip);
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void _clutter_stage_emit_after_paint (ClutterStage *stage);
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CLUTTER_EXPORT
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void _clutter_stage_set_window (ClutterStage *stage,
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ClutterStageWindow *stage_window);
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CLUTTER_EXPORT
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ClutterStageWindow *_clutter_stage_get_window (ClutterStage *stage);
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void _clutter_stage_get_projection_matrix (ClutterStage *stage,
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CoglMatrix *projection);
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void _clutter_stage_dirty_projection (ClutterStage *stage);
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void _clutter_stage_set_viewport (ClutterStage *stage,
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float x,
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float y,
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float width,
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float height);
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void _clutter_stage_get_viewport (ClutterStage *stage,
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float *x,
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float *y,
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float *width,
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float *height);
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void _clutter_stage_dirty_viewport (ClutterStage *stage);
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void _clutter_stage_maybe_setup_viewport (ClutterStage *stage,
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ClutterStageView *view);
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void _clutter_stage_maybe_relayout (ClutterActor *stage);
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gboolean _clutter_stage_needs_update (ClutterStage *stage);
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gboolean _clutter_stage_do_update (ClutterStage *stage);
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CLUTTER_EXPORT
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void _clutter_stage_queue_event (ClutterStage *stage,
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ClutterEvent *event,
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gboolean copy_event);
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gboolean _clutter_stage_has_queued_events (ClutterStage *stage);
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void _clutter_stage_process_queued_events (ClutterStage *stage);
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void _clutter_stage_update_input_devices (ClutterStage *stage);
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void _clutter_stage_schedule_update (ClutterStage *stage);
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gint64 _clutter_stage_get_update_time (ClutterStage *stage);
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void _clutter_stage_clear_update_time (ClutterStage *stage);
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gboolean _clutter_stage_has_full_redraw_queued (ClutterStage *stage);
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void clutter_stage_log_pick (ClutterStage *stage,
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const graphene_point_t *vertices,
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ClutterActor *actor);
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void clutter_stage_push_pick_clip (ClutterStage *stage,
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const graphene_point_t *vertices);
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void clutter_stage_pop_pick_clip (ClutterStage *stage);
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ClutterActor *_clutter_stage_do_pick (ClutterStage *stage,
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float x,
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float y,
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ClutterPickMode mode);
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ClutterPaintVolume *_clutter_stage_paint_volume_stack_allocate (ClutterStage *stage);
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void _clutter_stage_paint_volume_stack_free_all (ClutterStage *stage);
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const ClutterPlane *_clutter_stage_get_clip (ClutterStage *stage);
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ClutterStageQueueRedrawEntry *_clutter_stage_queue_actor_redraw (ClutterStage *stage,
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ClutterStageQueueRedrawEntry *entry,
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ClutterActor *actor,
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const ClutterPaintVolume *clip);
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void _clutter_stage_queue_redraw_entry_invalidate (ClutterStageQueueRedrawEntry *entry);
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CoglFramebuffer *_clutter_stage_get_active_framebuffer (ClutterStage *stage);
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void _clutter_stage_add_pointer_drag_actor (ClutterStage *stage,
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ClutterInputDevice *device,
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ClutterActor *actor);
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ClutterActor * _clutter_stage_get_pointer_drag_actor (ClutterStage *stage,
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ClutterInputDevice *device);
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void _clutter_stage_remove_pointer_drag_actor (ClutterStage *stage,
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ClutterInputDevice *device);
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void _clutter_stage_add_touch_drag_actor (ClutterStage *stage,
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ClutterEventSequence *sequence,
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ClutterActor *actor);
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ClutterActor * _clutter_stage_get_touch_drag_actor (ClutterStage *stage,
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ClutterEventSequence *sequence);
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void _clutter_stage_remove_touch_drag_actor (ClutterStage *stage,
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ClutterEventSequence *sequence);
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CLUTTER_EXPORT
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ClutterStageState _clutter_stage_get_state (ClutterStage *stage);
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CLUTTER_EXPORT
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gboolean _clutter_stage_is_activated (ClutterStage *stage);
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CLUTTER_EXPORT
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gboolean _clutter_stage_update_state (ClutterStage *stage,
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ClutterStageState unset_state,
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ClutterStageState set_state);
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void _clutter_stage_set_scale_factor (ClutterStage *stage,
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int factor);
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gboolean _clutter_stage_get_max_view_scale_factor_for_rect (ClutterStage *stage,
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graphene_rect_t *rect,
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float *view_scale);
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void _clutter_stage_presented (ClutterStage *stage,
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CoglFrameEvent frame_event,
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ClutterFrameInfo *frame_info);
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GList * _clutter_stage_peek_stage_views (ClutterStage *stage);
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G_END_DECLS
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#endif /* __CLUTTER_STAGE_PRIVATE_H__ */
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