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Resize via dragging corners

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Wenhua Zhao 2020-11-29 01:20:01 +00:00 • committed by Johan Malm
parent 0347e5d903
commit eee776de4f
1 changed files with 72 additions and 42 deletions
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114
src/cursor.c
View file

@ -1,6 +1,33 @@
#include "labwc.h"
#include "menu/menu.h"
#define RESIZE_BORDER_WIDTH 4
static uint32_t
get_resize_edges(struct view *view, double x, double y)
{
uint32_t edges = 0;
int top, right, bottom, left;
top = view->y - view->margin.top;
left = view->x - view->margin.left;
bottom = top + view->h + view->margin.top + view->margin.bottom;
right = left + view->w + view->margin.left + view->margin.right;
if (top <= y && y < top + RESIZE_BORDER_WIDTH) {
edges |= WLR_EDGE_TOP;
} else if (bottom - RESIZE_BORDER_WIDTH <= y && y < bottom) {
edges |= WLR_EDGE_BOTTOM;
}
if (left <= x && x < left + RESIZE_BORDER_WIDTH) {
edges |= WLR_EDGE_LEFT;
} else if (right - RESIZE_BORDER_WIDTH <= x && x < right) {
edges |= WLR_EDGE_RIGHT;
}
return edges;
}
static void
request_cursor_notify(struct wl_listener *listener, void *data)
{
@ -121,6 +148,7 @@ process_cursor_motion(struct server *server, uint32_t time)
struct wlr_seat *wlr_seat = server->seat.seat;
struct wlr_surface *surface = NULL;
int view_area;
char *cursor_name = NULL;
struct view *view =
desktop_view_at(server, server->seat.cursor->x, server->seat.cursor->y,
&surface, &sx, &sy, &view_area);
@ -130,35 +158,45 @@ process_cursor_motion(struct server *server, uint32_t time)
* a default. This is what makes the cursor image appear when
* you move it around the screen, not over any views.
*/
cursor_name = XCURSOR_DEFAULT;
} else {
uint32_t resize_edges = get_resize_edges(
view, server->seat.cursor->x, server->seat.cursor->y);
switch (resize_edges) {
case WLR_EDGE_TOP:
cursor_name = "top_side";
break;
case WLR_EDGE_RIGHT:
cursor_name = "right_side";
break;
case WLR_EDGE_BOTTOM:
cursor_name = "bottom_side";
break;
case WLR_EDGE_LEFT:
cursor_name = "left_side";
break;
case WLR_EDGE_TOP | WLR_EDGE_LEFT:
cursor_name = "top_left_corner";
break;
case WLR_EDGE_TOP | WLR_EDGE_RIGHT:
cursor_name = "top_right_corner";
break;
case WLR_EDGE_BOTTOM | WLR_EDGE_LEFT:
cursor_name = "bottom_left_corner";
break;
case WLR_EDGE_BOTTOM | WLR_EDGE_RIGHT:
cursor_name = "bottom_right_corner";
break;
case 0:
cursor_name = view_area == LAB_DECO_NONE ? NULL: XCURSOR_DEFAULT;
break;
}
}
if (cursor_name) {
wlr_xcursor_manager_set_cursor_image(
server->seat.xcursor_manager, XCURSOR_DEFAULT, server->seat.cursor);
server->seat.xcursor_manager, cursor_name, server->seat.cursor);
}
/* TODO: Could we use wlr_xcursor_get_resize_name() here?? */
switch (view_area) {
case LAB_DECO_NONE:
break;
case LAB_DECO_PART_TOP:
wlr_xcursor_manager_set_cursor_image(
server->seat.xcursor_manager, "top_side", server->seat.cursor);
break;
case LAB_DECO_PART_RIGHT:
wlr_xcursor_manager_set_cursor_image(
server->seat.xcursor_manager, "right_side", server->seat.cursor);
break;
case LAB_DECO_PART_BOTTOM:
wlr_xcursor_manager_set_cursor_image(
server->seat.xcursor_manager, "bottom_side", server->seat.cursor);
break;
case LAB_DECO_PART_LEFT:
wlr_xcursor_manager_set_cursor_image(
server->seat.xcursor_manager, "left_side", server->seat.cursor);
break;
default:
wlr_xcursor_manager_set_cursor_image(
server->seat.xcursor_manager, XCURSOR_DEFAULT, server->seat.cursor);
break;
}
if (surface) {
bool focus_changed =
wlr_seat->pointer_state.focused_surface != surface;
@ -245,6 +283,7 @@ cursor_button(struct wl_listener *listener, void *data)
double sx, sy;
struct wlr_surface *surface;
int view_area;
uint32_t resize_edges;
struct view *view = desktop_view_at(server, server->seat.cursor->x,
server->seat.cursor->y, &surface, &sx, &sy, &view_area);
@ -273,6 +312,13 @@ cursor_button(struct wl_listener *listener, void *data)
/* Handle _press_ on view */
desktop_focus_view(&server->seat, view);
resize_edges = get_resize_edges(view, server->seat.cursor->x, server->seat.cursor->y);
if (resize_edges != 0) {
interactive_begin(view, LAB_INPUT_STATE_RESIZE, resize_edges);
return;
}
switch (view_area) {
case LAB_DECO_BUTTON_CLOSE:
view->impl->close(view);
@ -283,22 +329,6 @@ cursor_button(struct wl_listener *listener, void *data)
case LAB_DECO_PART_TITLE:
interactive_begin(view, LAB_INPUT_STATE_MOVE, 0);
break;
case LAB_DECO_PART_TOP:
interactive_begin(view, LAB_INPUT_STATE_RESIZE,
WLR_EDGE_TOP);
break;
case LAB_DECO_PART_RIGHT:
interactive_begin(view, LAB_INPUT_STATE_RESIZE,
WLR_EDGE_RIGHT);
break;
case LAB_DECO_PART_BOTTOM:
interactive_begin(view, LAB_INPUT_STATE_RESIZE,
WLR_EDGE_BOTTOM);
break;
case LAB_DECO_PART_LEFT:
interactive_begin(view, LAB_INPUT_STATE_RESIZE,
WLR_EDGE_LEFT);
break;
}
}