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selection: selections can be made, and are rendered

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* Start selection on mouse button down
* Update selection on motion
* Button release cancels selection if there were no motion after start
* Renderer detects cells inside the selection and inverts their colors
This commit is contained in:
Daniel Eklöf 2019-07-10 20:57:09 +02:00
parent decb4503bf
commit 632790d5d8
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GPG key ID: 5BBD4992C116573F
4 changed files with 57 additions and 1 deletions
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21
input.c
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@ -312,6 +312,14 @@ wl_pointer_motion(void *data, struct wl_pointer *wl_pointer,
term->mouse.col = col;
term->mouse.row = row;
if (term->mouse.button != 0) {
/* Update selection */
term->selection.end = (struct coord){col, term->grid->view + row};
term_damage_view(term);
if (term->frame_callback == NULL)
grid_render(term);
}
term_mouse_motion(
term, term->mouse.button, term->mouse.row, term->mouse.col,
term->kbd.shift, term->kbd.alt, term->kbd.ctrl);
@ -327,12 +335,25 @@ wl_pointer_button(void *data, struct wl_pointer *wl_pointer,
switch (state) {
case WL_POINTER_BUTTON_STATE_PRESSED:
/* Start selection */
term->selection.start = (struct coord){
term->mouse.col, term->grid->view + term->mouse.row};
term->selection.end = (struct coord){-1, -1};
term->mouse.button = button; /* For motion events */
term_mouse_down(term, button, term->mouse.row, term->mouse.col,
term->kbd.shift, term->kbd.alt, term->kbd.ctrl);
break;
case WL_POINTER_BUTTON_STATE_RELEASED:
if (term->selection.end.col == -1) {
/* No selection made - cancel */
term->selection.start = (struct coord){-1, -1};
term_damage_view(term);
if (term->frame_callback == NULL)
grid_render(term);
}
term->mouse.button = 0; /* For motion events */
term_mouse_up(term, button, term->mouse.row, term->mouse.col,
term->kbd.shift, term->kbd.alt, term->kbd.ctrl);