static gboolean edit_update_cursor (WEdit * edit, const mouse_event_t * event) { int x, y; gboolean done; x = event->x - (edit->fullscreen ? 0 : 1); y = event->y - (edit->fullscreen ? 0 : 1); if (edit->mark2 != -1 && event->msg == MSG_MOUSE_UP) return TRUE; /* don't do anything */ if (event->msg == MSG_MOUSE_DOWN || event->msg == MSG_MOUSE_UP) edit_push_key_press (edit); if (!option_cursor_beyond_eol) edit->prev_col = x - edit->start_col - option_line_state_width; else { long line_len; line_len = edit_move_forward3 (edit, edit_buffer_get_current_bol (&edit->buffer), 0, edit_buffer_get_current_eol (&edit->buffer)); if (x > line_len - 1) { edit->over_col = x - line_len - edit->start_col - option_line_state_width; edit->prev_col = line_len; } else { edit->over_col = 0; edit->prev_col = x - option_line_state_width - edit->start_col; } } if (y > edit->curs_row) edit_move_down (edit, y - edit->curs_row, FALSE); else if (y < edit->curs_row) edit_move_up (edit, edit->curs_row - y, FALSE); else edit_move_to_prev_col (edit, edit_buffer_get_current_bol (&edit->buffer)); if (event->msg == MSG_MOUSE_CLICK) { edit_mark_cmd (edit, TRUE); /* reset */ edit->highlight = 0; } done = (event->msg != MSG_MOUSE_DRAG); if (done) edit_mark_cmd (edit, FALSE); return done; }
static off_t begin_paragraph (WEdit * edit, gboolean force) { long i; for (i = edit->buffer.curs_line - 1; i >= 0; i--) if (edit_line_is_blank (edit, i) || (force && bad_line_start (&edit->buffer, line_start (&edit->buffer, i)))) { i++; break; } return edit_buffer_move_backward (&edit->buffer, edit_buffer_get_current_bol (&edit->buffer), edit->buffer.curs_line - i); }
static off_t end_paragraph (WEdit * edit, gboolean force) { long i; for (i = edit->buffer.curs_line + 1; i <= edit->buffer.lines; i++) if (edit_line_is_blank (edit, i) || (force && bad_line_start (&edit->buffer, line_start (&edit->buffer, i)))) { i--; break; } return edit_buffer_get_eol (&edit->buffer, edit_buffer_move_forward (&edit->buffer, edit_buffer_get_current_bol (&edit->buffer), i - edit->buffer.curs_line, 0)); }
static int edit_event (Gpm_Event * event, void *data) { WEdit *edit = (WEdit *) data; Widget *w = WIDGET (data); Gpm_Event local; if (!mouse_global_in_widget (event, w)) return MOU_UNHANDLED; local = mouse_get_local (event, w); /* Unknown event type */ if ((event->type & (GPM_DOWN | GPM_DRAG | GPM_UP)) == 0) return MOU_NORMAL; dlg_set_top_widget (w); edit_update_curs_row (edit); edit_update_curs_col (edit); if (edit->fullscreen || (local.buttons & GPM_B_LEFT) == 0 || (local.type & GPM_UP) != 0) edit->drag_state = MCEDIT_DRAG_NORMAL; else if (local.y == 1 && edit->drag_state != MCEDIT_DRAG_RESIZE) { /* click on the top line (move) */ int dx = edit->fullscreen ? 0 : 2; if (local.x == w->cols - dx - 1) { send_message (w->owner, NULL, MSG_ACTION, CK_Close, NULL); return MOU_NORMAL; } if (local.x == w->cols - dx - 4) { edit_toggle_fullscreen (edit); return MOU_NORMAL; } if ((local.type & (GPM_DOWN | GPM_DRAG)) != 0) { /* move if not fullscreen */ edit->drag_state_start = local.x; edit->drag_state = MCEDIT_DRAG_MOVE; edit->force |= REDRAW_COMPLETELY; edit_update_screen (edit); } } else if (!edit->fullscreen && local.y == w->lines && local.x == w->cols) { /* click on bottom-right corner (resize) */ if ((local.type & (GPM_DOWN | GPM_DRAG)) != 0) { edit->drag_state = MCEDIT_DRAG_RESIZE; edit->force |= REDRAW_COMPLETELY; edit_update_screen (edit); } } if (edit->drag_state == MCEDIT_DRAG_NORMAL) { gboolean done = TRUE; /* Double click */ if ((local.type & (GPM_DOUBLE | GPM_UP)) == (GPM_UP | GPM_DOUBLE)) { edit_mark_current_word_cmd (edit); goto update; } #if 0 /* Triple click */ if ((local.type & (GPM_TRIPLE | GPM_UP)) == (GPM_UP | GPM_TRIPLE)) { edit_mark_current_line_cmd (edit); goto update; } #endif /* Wheel events */ if ((local.buttons & GPM_B_UP) != 0 && (local.type & GPM_DOWN) != 0) { edit_move_up (edit, 2, 1); goto update; } if ((local.buttons & GPM_B_DOWN) != 0 && (local.type & GPM_DOWN) != 0) { edit_move_down (edit, 2, 1); goto update; } /* continue handle current event */ goto cont; /* handle DRAG mouse event, don't use standard way to continue * event handling outside of widget */ do { int c; c = tty_get_event (event, FALSE, TRUE); if (c == EV_NONE || c != EV_MOUSE) break; local = mouse_get_local (event, w); cont: /* A lone up mustn't do anything */ if (edit->mark2 != -1 && (local.type & (GPM_UP | GPM_DRAG)) != 0) return MOU_NORMAL; if ((local.type & (GPM_DOWN | GPM_UP)) != 0) edit_push_key_press (edit); if (!edit->fullscreen) local.x--; if (!option_cursor_beyond_eol) edit->prev_col = local.x - edit->start_col - option_line_state_width - 1; else { long line_len; line_len = edit_move_forward3 (edit, edit_buffer_get_current_bol (&edit->buffer), 0, edit_buffer_get_current_eol (&edit->buffer)); if (local.x > line_len) { edit->over_col = local.x - line_len - edit->start_col - option_line_state_width - 1; edit->prev_col = line_len; } else { edit->over_col = 0; edit->prev_col = local.x - option_line_state_width - edit->start_col - 1; } } if (!edit->fullscreen) local.y--; if (local.y > (edit->curs_row + 1)) edit_move_down (edit, local.y - (edit->curs_row + 1), 0); else if (local.y < (edit->curs_row + 1)) edit_move_up (edit, (edit->curs_row + 1) - local.y, 0); else edit_move_to_prev_col (edit, edit_buffer_get_current_bol (&edit->buffer)); if ((local.type & GPM_DOWN) != 0) { edit_mark_cmd (edit, TRUE); /* reset */ edit->highlight = 0; } done = (local.type & GPM_DRAG) == 0; if (done) edit_mark_cmd (edit, FALSE); update: edit_find_bracket (edit); edit->force |= REDRAW_COMPLETELY; edit_update_curs_row (edit); edit_update_curs_col (edit); edit_update_screen (edit); } while (!edit->fullscreen && !done); } else while (edit->drag_state != MCEDIT_DRAG_NORMAL) { int c; int y; c = tty_get_event (event, FALSE, TRUE); y = event->y - 1; if (c == EV_NONE || c != EV_MOUSE) { /* redraw frame */ edit->drag_state = MCEDIT_DRAG_NORMAL; edit->force |= REDRAW_COMPLETELY; edit_update_screen (edit); } else if (y == w->y && (event->type & (GPM_DOUBLE | GPM_UP)) == (GPM_DOUBLE | GPM_UP)) { /* double click on top line (toggle fullscreen) */ edit_toggle_fullscreen (edit); edit->drag_state = MCEDIT_DRAG_NORMAL; edit->force |= REDRAW_COMPLETELY; edit_update_screen (edit); } else if ((event->type & (GPM_DRAG | GPM_DOWN)) == 0) { /* redraw frame */ edit->drag_state = MCEDIT_DRAG_NORMAL; edit->force |= REDRAW_COMPLETELY; edit_update_screen (edit); } else if (!edit->fullscreen) { Widget *h = WIDGET (w->owner); if (edit->drag_state == MCEDIT_DRAG_MOVE) { int x = event->x - 1; y = max (y, h->y + 1); /* status line */ y = min (y, h->y + h->lines - 2); /* buttonbar */ x = max (x, h->x); x = min (x, h->x + h->cols - 1); /* don't use widget_set_size() here to avoid double draw */ w->y = y; w->x = x - edit->drag_state_start; edit->force |= REDRAW_COMPLETELY; } else if (edit->drag_state == MCEDIT_DRAG_RESIZE) { event->y = min (event->y, h->y + h->lines - 1); /* buttonbar */ event->x = min (event->x, h->x + h->cols); local = mouse_get_local (event, w); /* don't use widget_set_size() here to avoid double draw */ w->lines = max (WINDOW_MIN_LINES, local.y); w->cols = max (WINDOW_MIN_COLS, local.x); edit->force |= REDRAW_COMPLETELY; } dlg_redraw (w->owner); } } return MOU_NORMAL; }
static inline void render_edit_text (WEdit * edit, long start_row, long start_column, long end_row, long end_column) { static long prev_curs_row = 0; static off_t prev_curs = 0; Widget *w = WIDGET (edit); Widget *wh = WIDGET (w->owner); int force = edit->force; int y1, x1, y2, x2; int last_line; int last_column; /* draw only visible region */ last_line = wh->y + wh->lines - 1; y1 = w->y; if (y1 > last_line - 1 /* buttonbar */ ) return; last_column = wh->x + wh->cols - 1; x1 = w->x; if (x1 > last_column) return; y2 = w->y + w->lines - 1; if (y2 < wh->y + 1 /* menubar */ ) return; x2 = w->x + w->cols - 1; if (x2 < wh->x) return; if ((force & REDRAW_IN_BOUNDS) == 0) { /* !REDRAW_IN_BOUNDS means to ignore bounds and redraw whole rows */ /* draw only visible region */ if (y2 <= last_line - 1 /* buttonbar */ ) end_row = w->lines - 1; else if (y1 >= wh->y + 1 /* menubar */ ) end_row = wh->lines - 1 - y1 - 1; else end_row = start_row + wh->lines - 1 - 1; if (x2 <= last_column) end_column = w->cols - 1; else if (x1 >= wh->x) end_column = wh->cols - 1 - x1; else end_column = start_column + wh->cols - 1; } /* * If the position of the page has not moved then we can draw the cursor * character only. This will prevent line flicker when using arrow keys. */ if ((force & REDRAW_CHAR_ONLY) == 0 || (force & REDRAW_PAGE) != 0) { long row = 0; long b; if ((force & REDRAW_PAGE) != 0) { row = start_row; b = edit_buffer_move_forward (&edit->buffer, edit->start_display, start_row, 0); while (row <= end_row) { if (key_pending (edit)) return; edit_draw_this_line (edit, b, row, start_column, end_column); b = edit_buffer_move_forward (&edit->buffer, b, 1, 0); row++; } } else { long curs_row = edit->curs_row; if ((force & REDRAW_BEFORE_CURSOR) != 0 && start_row < curs_row) { long upto = curs_row - 1 <= end_row ? curs_row - 1 : end_row; row = start_row; b = edit->start_display; while (row <= upto) { if (key_pending (edit)) return; edit_draw_this_line (edit, b, row, start_column, end_column); b = edit_buffer_move_forward (&edit->buffer, b, 1, 0); } } /* if (force & REDRAW_LINE) ---> default */ b = edit_buffer_get_current_bol (&edit->buffer); if (curs_row >= start_row && curs_row <= end_row) { if (key_pending (edit)) return; edit_draw_this_line (edit, b, curs_row, start_column, end_column); } if ((force & REDRAW_AFTER_CURSOR) != 0 && end_row > curs_row) { row = curs_row + 1 < start_row ? start_row : curs_row + 1; b = edit_buffer_move_forward (&edit->buffer, b, 1, 0); while (row <= end_row) { if (key_pending (edit)) return; edit_draw_this_line (edit, b, row, start_column, end_column); b = edit_buffer_move_forward (&edit->buffer, b, 1, 0); row++; } } if ((force & REDRAW_LINE_ABOVE) != 0 && curs_row >= 1) { row = curs_row - 1; b = edit_buffer_move_backward (&edit->buffer, edit_buffer_get_current_bol (&edit->buffer), 1); if (row >= start_row && row <= end_row) { if (key_pending (edit)) return; edit_draw_this_line (edit, b, row, start_column, end_column); } } if ((force & REDRAW_LINE_BELOW) != 0 && row < w->lines - 1) { row = curs_row + 1; b = edit_buffer_get_current_bol (&edit->buffer); b = edit_buffer_move_forward (&edit->buffer, b, 1, 0); if (row >= start_row && row <= end_row) { if (key_pending (edit)) return; edit_draw_this_line (edit, b, row, start_column, end_column); } } } } else if (prev_curs_row < edit->curs_row) { /* with the new text highlighting, we must draw from the top down */ edit_draw_this_char (edit, prev_curs, prev_curs_row, start_column, end_column); edit_draw_this_char (edit, edit->buffer.curs1, edit->curs_row, start_column, end_column); } else { edit_draw_this_char (edit, edit->buffer.curs1, edit->curs_row, start_column, end_column); edit_draw_this_char (edit, prev_curs, prev_curs_row, start_column, end_column); } edit->force = 0; prev_curs_row = edit->curs_row; prev_curs = edit->buffer.curs1; }