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Implement smooth scroll and smooth zoom

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This commit is contained in:
Alexander Shabalin 2014-07-05 20:13:50 +04:00
parent 386c949d4a
commit 82b6fac0a4
3 changed files with 25 additions and 7 deletions
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2
config.c
View file

@ -319,12 +319,14 @@ config_load_default(zathura_t* zathura)
girara_mouse_event_add(gsession, 0, 0, sc_mouse_scroll, (mode), GIRARA_EVENT_SCROLL_DOWN, DOWN, NULL); \
girara_mouse_event_add(gsession, 0, 0, sc_mouse_scroll, (mode), GIRARA_EVENT_SCROLL_LEFT, LEFT, NULL); \
girara_mouse_event_add(gsession, 0, 0, sc_mouse_scroll, (mode), GIRARA_EVENT_SCROLL_RIGHT, RIGHT, NULL); \
girara_mouse_event_add(gsession, 0, 0, sc_mouse_scroll, (mode), GIRARA_EVENT_SCROLL_BIDIRECTIONAL, BIDIRECTIONAL, NULL); \
\
girara_mouse_event_add(gsession, GDK_SHIFT_MASK, 0, sc_mouse_scroll, (mode), GIRARA_EVENT_SCROLL_UP, LEFT, NULL); \
girara_mouse_event_add(gsession, GDK_SHIFT_MASK, 0, sc_mouse_scroll, (mode), GIRARA_EVENT_SCROLL_DOWN, RIGHT, NULL); \
\
girara_mouse_event_add(gsession, GDK_CONTROL_MASK, 0, sc_mouse_zoom, (mode), GIRARA_EVENT_SCROLL_UP, UP, NULL); \
girara_mouse_event_add(gsession, GDK_CONTROL_MASK, 0, sc_mouse_zoom, (mode), GIRARA_EVENT_SCROLL_DOWN, DOWN, NULL); \
girara_mouse_event_add(gsession, GDK_CONTROL_MASK, 0, sc_mouse_zoom, (mode), GIRARA_EVENT_SCROLL_BIDIRECTIONAL, BIDIRECTIONAL, NULL); \
girara_mouse_event_add(gsession, 0, GIRARA_MOUSE_BUTTON2, sc_mouse_scroll, (mode), GIRARA_EVENT_BUTTON_PRESS, 0, NULL); \
girara_mouse_event_add(gsession, GDK_BUTTON2_MASK, GIRARA_MOUSE_BUTTON2, sc_mouse_scroll, (mode), GIRARA_EVENT_BUTTON_RELEASE, 0, NULL); \
girara_mouse_event_add(gsession, GDK_BUTTON2_MASK, 0, sc_mouse_scroll, (mode), GIRARA_EVENT_MOTION_NOTIFY, 0, NULL); \

14
shortcuts.c
View file

@ -285,6 +285,7 @@ sc_mouse_scroll(girara_session_t* session, girara_argument_t* argument, girara_e
case GIRARA_EVENT_SCROLL_DOWN:
case GIRARA_EVENT_SCROLL_LEFT:
case GIRARA_EVENT_SCROLL_RIGHT:
case GIRARA_EVENT_SCROLL_BIDIRECTIONAL:
return sc_scroll(session, argument, NULL, t);
/* drag */
@ -339,6 +340,9 @@ sc_mouse_zoom(girara_session_t* session, girara_argument_t* argument, girara_eve
case GIRARA_EVENT_SCROLL_DOWN:
argument->n = ZOOM_OUT;
break;
case GIRARA_EVENT_SCROLL_BIDIRECTIONAL:
argument->n = ZOOM_SMOOTH;
break;
default:
return false;
}
@ -589,6 +593,13 @@ sc_scroll(girara_session_t* session, girara_argument_t* argument,
case RIGHT:
pos_x += direction * t * scroll_hstep / (double)doc_width;
break;
case BIDIRECTIONAL: {
double* movement = (double*)argument->data;
pos_x += movement[0] * t * scroll_hstep / (double)doc_width;
pos_y += movement[1] * t * scroll_step / (double)doc_height;
break;
}
}
/* handle boundaries */
@ -1367,6 +1378,9 @@ sc_zoom(girara_session_t* session, girara_argument_t* argument, girara_event_t*
} else {
zathura_document_set_scale(zathura->document, t / 100.0);
}
} else if (argument->n == ZOOM_SMOOTH) {
double dy = ((double*)argument->data)[1];
zathura_document_set_scale(zathura->document, old_zoom + zoom_step * dy);
} else {
zathura_document_set_scale(zathura->document, 1.0);
}

4
zathura.h
View file

@ -60,7 +60,9 @@ enum {
ROTATE_CW,
ROTATE_CCW,
PAGE_BOTTOM,
PAGE_TOP
PAGE_TOP,
BIDIRECTIONAL,
ZOOM_SMOOTH
};
/* unspecified page number */