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Implement basic terminal scroll.

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This commit is contained in:
Michael Jumper 2013-04-26 10:55:55 -07:00
parent e1b45733a3
commit dd4862f59a
1 changed files with 34 additions and 20 deletions
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54
protocols/ssh/src/terminal.c
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@ -86,8 +86,8 @@ guac_terminal* guac_terminal_create(guac_client* client,
term->cursor_row = 0;
term->cursor_col = 0;
term->term_width = width / term->display->char_width;
term->term_height = height / term->display->char_height;
term->term_width = 80; /*width / term->display->char_width;*/
term->term_height = 24; /*height / term->display->char_height;*/
term->char_handler = guac_terminal_echo;
term->scroll_start = 0;
@ -158,7 +158,15 @@ int guac_terminal_write(guac_terminal* term, const char* c, int size) {
int guac_terminal_scroll_up(guac_terminal* term,
int start_row, int end_row, int amount) {
/* STUB */
/* Copy row data upwards */
guac_terminal_copy_rows(term, start_row + amount, end_row, -amount);
/* Clear new area */
guac_terminal_clear_range(term,
end_row - amount + 1, 0,
end_row, term->term_width - 1);
return 0;
}
@ -244,10 +252,9 @@ void guac_terminal_scroll_display_down(guac_terminal* terminal,
/* Shift screen up */
if (terminal->term_height > scroll_amount)
guac_terminal_display_copy(terminal->display,
0, 0, /* Destination row, col */
scroll_amount, 0, /* source row,col */
terminal->term_width, terminal->term_height - scroll_amount);
guac_terminal_display_copy_rows(terminal->display,
scroll_amount, terminal->term_height - 1,
-scroll_amount);
/* Advance by scroll amount */
terminal->scroll_offset -= scroll_amount;
@ -268,8 +275,8 @@ void guac_terminal_scroll_display_down(guac_terminal* terminal,
/* FIXME: Clear row first */
guac_terminal_char* current = buffer_row->characters;
for (column=0; column<buffer_row->length; column++)
guac_terminal_display_set(terminal->display, dest_row, column,
current++);
guac_terminal_display_set_columns(terminal->display,
dest_row, column, column, current++);
/* Next row */
dest_row++;
@ -300,10 +307,9 @@ void guac_terminal_scroll_display_up(guac_terminal* terminal,
/* Shift screen down */
if (terminal->term_height > scroll_amount)
guac_terminal_display_copy(terminal->display,
scroll_amount, 0, /* Destination row,col */
0, 0, /* Source row, col */
terminal->term_width, terminal->term_height - scroll_amount);
guac_terminal_display_copy_rows(terminal->display,
0, terminal->term_height - scroll_amount - 1,
scroll_amount);
/* Advance by scroll amount */
terminal->scroll_offset += scroll_amount;
@ -324,8 +330,8 @@ void guac_terminal_scroll_display_up(guac_terminal* terminal,
/* FIXME: Clear row first */
guac_terminal_char* current = buffer_row->characters;
for (column=0; column<buffer_row->length; column++)
guac_terminal_display_set(terminal->display, dest_row, column,
current++);
guac_terminal_display_set_columns(terminal->display,
dest_row, column, column, current++);
/* Next row */
dest_row++;
@ -353,17 +359,25 @@ void guac_terminal_select_end(guac_terminal* terminal) {
void guac_terminal_copy_columns(guac_terminal* terminal, int row,
int start_column, int end_column, int offset) {
/* STUB */
guac_client_log_info(terminal->client,
"terminal_copy_columns: row=%i, start=%i, end=%i, offset=%i",
row, start_column, end_column, offset);
guac_terminal_display_copy_columns(terminal->display, row,
start_column, end_column, offset);
guac_terminal_buffer_copy_columns(terminal->buffer, row,
start_column, end_column, offset);
}
void guac_terminal_copy_rows(guac_terminal* terminal,
int start_row, int end_row, int offset) {
/* STUB */
guac_client_log_info(terminal->client,
"terminal_copy_rows: start=%i, end=%i, offset=%i",
guac_terminal_display_copy_rows(terminal->display,
start_row, end_row, offset);
guac_terminal_buffer_copy_rows(terminal->buffer,
start_row, end_row, offset);
}
void guac_terminal_set_columns(guac_terminal* terminal, int row,