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ce0d2c2966
Add optional drop-shadows to windows using server-side decoration. Shadows can be enabled/disabled rc.xml and their appearance configured in themerc. The default is no shadows to preserve current behaviour. The shadows are drawn in fixed corner and edge buffers shared between all windows, the edges are scaled to size depending on the size of each window. Two sets of buffers are used to give the different appearances for active and inactive windows. I use separate corner/edge buffers for a few reasons: - It avoids needing to store a separate large shadow buffer per window - It avoids needing to redraw the shadows when the window is being resized - Compositing the shadows onto the desktop should be faster as there are overall fewer pixels to blend, and scaling up the edge buffers only requires reading a tiny buffer which is then replicated.
105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef LABWC_SSD_H
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#define LABWC_SSD_H
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#include <wayland-server-core.h>
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#include "common/border.h"
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#define SSD_BUTTON_COUNT 4
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#define SSD_BUTTON_WIDTH 26
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#define SSD_EXTENDED_AREA 8
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/*
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* Shadows should start at a point inset from the actual window border, see
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* discussion on https://github.com/labwc/labwc/pull/1648. This constant
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* specifies inset as a multiple of visible shadow size.
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*/
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#define SSD_SHADOW_INSET 0.3
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/*
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* Sequence these according to the order they should be processed for
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* press and hover events. Bear in mind that some of their respective
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* interactive areas overlap, so for example buttons need to come before title.
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*/
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enum ssd_part_type {
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LAB_SSD_NONE = 0,
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LAB_SSD_BUTTON_CLOSE,
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LAB_SSD_BUTTON_MAXIMIZE,
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LAB_SSD_BUTTON_ICONIFY,
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LAB_SSD_BUTTON_WINDOW_MENU,
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LAB_SSD_PART_TITLEBAR,
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LAB_SSD_PART_TITLE,
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LAB_SSD_PART_CORNER_TOP_LEFT,
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LAB_SSD_PART_CORNER_TOP_RIGHT,
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LAB_SSD_PART_CORNER_BOTTOM_RIGHT,
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LAB_SSD_PART_CORNER_BOTTOM_LEFT,
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LAB_SSD_PART_TOP,
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LAB_SSD_PART_RIGHT,
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LAB_SSD_PART_BOTTOM,
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LAB_SSD_PART_LEFT,
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LAB_SSD_CLIENT,
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LAB_SSD_FRAME,
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LAB_SSD_ROOT,
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LAB_SSD_MENU,
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LAB_SSD_OSD,
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LAB_SSD_LAYER_SURFACE,
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LAB_SSD_LAYER_SUBSURFACE,
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LAB_SSD_UNMANAGED,
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LAB_SSD_END_MARKER
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};
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/* Forward declare arguments */
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struct ssd;
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struct ssd_button;
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struct ssd_hover_state;
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struct view;
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struct wlr_scene;
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struct wlr_scene_node;
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/*
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* Public SSD API
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*
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* For convenience in dealing with non-SSD views, this API allows NULL
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* ssd/button/node arguments and attempts to do something sensible in
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* that case (e.g. no-op/return default values).
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*
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* NULL scene/view arguments are not allowed.
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*/
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struct ssd *ssd_create(struct view *view, bool active);
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struct border ssd_get_margin(const struct ssd *ssd);
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void ssd_update_margin(struct ssd *ssd);
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void ssd_set_active(struct ssd *ssd, bool active);
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void ssd_update_title(struct ssd *ssd);
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void ssd_update_geometry(struct ssd *ssd);
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void ssd_destroy(struct ssd *ssd);
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void ssd_titlebar_hide(struct ssd *ssd);
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void ssd_enable_keybind_inhibit_indicator(struct ssd *ssd, bool enable);
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void ssd_enable_shade(struct ssd *ssd, bool enable);
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struct ssd_hover_state *ssd_hover_state_new(void);
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void ssd_update_button_hover(struct wlr_scene_node *node,
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struct ssd_hover_state *hover_state);
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enum ssd_part_type ssd_button_get_type(const struct ssd_button *button);
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struct view *ssd_button_get_view(const struct ssd_button *button);
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/* Public SSD helpers */
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enum ssd_part_type ssd_at(const struct ssd *ssd,
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struct wlr_scene *scene, double lx, double ly);
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enum ssd_part_type ssd_get_part_type(const struct ssd *ssd,
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struct wlr_scene_node *node);
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uint32_t ssd_resize_edges(enum ssd_part_type type);
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bool ssd_is_button(enum ssd_part_type type);
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bool ssd_part_contains(enum ssd_part_type whole, enum ssd_part_type candidate);
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/* TODO: clean up / update */
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struct border ssd_thickness(struct view *view);
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struct wlr_box ssd_max_extents(struct view *view);
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/* SSD debug helpers */
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bool ssd_debug_is_root_node(const struct ssd *ssd, struct wlr_scene_node *node);
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const char *ssd_debug_get_node_name(const struct ssd *ssd,
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struct wlr_scene_node *node);
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#endif /* LABWC_SSD_H */
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