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extend_selection()

master
Yevgen Muntyan 2005-07-19 10:25:48 +00:00
parent 3e1d3c7ba5
commit a1bdaaa503
2 changed files with 196 additions and 11 deletions
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202
moo/mooterm/mooterm-text.c
View File

@ -321,16 +321,6 @@ static void right_button_click (MooText *obj,
}
static gboolean extend_selection (MooText *obj,
MooTextSelectionType type,
GtkTextIter *insert,
GtkTextIter *selection_bound)
{
term_select_range (selection_bound, insert);
return iter_cmp (selection_bound, insert);
}
static void window_to_buffer_coords (MooText *obj,
int window_x,
int window_y,
@ -520,6 +510,11 @@ int moo_term_row_selected (MooTerm *term,
}
static gboolean extend_selection (MooText *obj,
MooTextSelectionType type,
GtkTextIter *end,
GtkTextIter *start);
void moo_term_text_iface_init (gpointer g_iface)
{
MooTextIface *iface = (MooTextIface*) g_iface;
@ -548,3 +543,190 @@ char *moo_term_selection_get_text (MooTerm *term)
{
return NULL;
}
static int char_class (MooTerm *term,
const GtkTextIter *iter);
static gboolean iter_ends_line (const GtkTextIter *iter);
static gboolean iter_starts_line (const GtkTextIter *iter);
static void iter_forward_char (GtkTextIter *iter);
static void iter_backward_char (GtkTextIter *iter);
static void iter_set_line_offset (GtkTextIter *iter,
guint offset);
static gboolean iter_forward_line (GtkTextIter *iter);
static gboolean is_space (const GtkTextIter *iter);
static gboolean is_word_char (const GtkTextIter *iter);
static gunichar iter_get_char (const GtkTextIter *iter);
static gboolean extend_selection (MooText *obj,
MooTextSelectionType type,
GtkTextIter *end,
GtkTextIter *start)
{
MooTerm *term = MOO_TERM (obj);
int order = iter_cmp (start, end);
if (type == MOO_TEXT_SELECT_CHARS)
{
return order;
}
if (order > 0)
{
GtkTextIter *tmp = start;
start = end; end = tmp;
}
if (type == MOO_TEXT_SELECT_WORDS)
{
int ch_class;
ch_class = char_class (term, end);
while (!iter_ends_line (end) &&
char_class (term, end) == ch_class)
{
iter_forward_char (end);
}
ch_class = char_class (term, start);
while (!iter_starts_line (start) &&
char_class (term, start) == ch_class)
{
iter_backward_char (start);
}
if (char_class (term, start) != ch_class)
iter_forward_char (start);
return iter_cmp (start, end);
}
if (type == MOO_TEXT_SELECT_LINES)
{
iter_set_line_offset (start, 0);
iter_forward_line (end);
return iter_cmp (start, end);
}
g_assert_not_reached ();
}
static int char_class (MooTerm *term,
const GtkTextIter *iter)
{
if (iter_ends_line (iter))
return -1;
else if (is_space (iter))
return 0;
else if (is_word_char (iter))
return 1;
else
return 2;
}
static gboolean iter_ends_line (const GtkTextIter *iter)
{
return ITER_COL(iter) == (int)ITER_TERM(iter)->priv->width;
}
static gboolean iter_starts_line (const GtkTextIter *iter)
{
return ITER_COL(iter) == 0;
}
static void iter_forward_char (GtkTextIter *iter)
{
MooTerm *term = ITER_TERM(iter);
int width = term->priv->width;
int total_height = term->priv->height + buf_scrollback (term->priv->buffer);
g_return_if_fail (ITER_ROW(iter) < total_height || ITER_COL(iter) < width);
if (ITER_COL(iter) < width)
{
ITER_COL(iter)++;
}
else
{
ITER_COL(iter) = 0;
ITER_ROW(iter)++;
}
}
static void iter_backward_char (GtkTextIter *iter)
{
MooTerm *term = ITER_TERM(iter);
int width = term->priv->width;
g_return_if_fail (ITER_ROW(iter) > 0 || ITER_COL(iter) > 0);
if (ITER_COL(iter) > 0)
{
ITER_COL(iter)--;
}
else
{
ITER_ROW(iter)--;
ITER_COL(iter) = width;
}
}
static void iter_set_line_offset (GtkTextIter *iter,
guint offset)
{
g_return_if_fail (offset <= ITER_TERM(iter)->priv->width);
ITER_COL(iter) = offset;
}
static gboolean iter_forward_line (GtkTextIter *iter)
{
MooTerm *term = ITER_TERM(iter);
int width = term->priv->width;
int total_height = term->priv->height + buf_scrollback (term->priv->buffer);
if (ITER_ROW(iter) == total_height)
{
ITER_COL(iter) = width;
return FALSE;
}
else
{
ITER_COL(iter) = 0;
ITER_ROW(iter)++;
return TRUE;
}
}
static gboolean is_space (const GtkTextIter *iter)
{
gunichar c = iter_get_char (iter);
g_return_val_if_fail (c != 0, FALSE);
return g_unichar_isspace (c);
}
static gboolean is_word_char (const GtkTextIter *iter)
{
gunichar c = iter_get_char (iter);
g_return_val_if_fail (c != 0, FALSE);
return g_unichar_isalnum (c) || c == '_';
}
static gunichar iter_get_char (const GtkTextIter *iter)
{
MooTermLine *line = buf_line (ITER_TERM(iter)->priv->buffer,
ITER_ROW(iter));
return term_line_get_unichar (line, ITER_COL(iter));
}

5
moo/mooterm/mootermline.h
View File

@ -230,7 +230,10 @@ inline static void term_line_insert_unichar (MooTermLine *line,
inline static gunichar term_line_get_unichar (MooTermLine *line,
guint col)
{
return g_array_index (TERM_LINE_ARRAY (line), MooTermCell, col).ch;
if (col >= line->len)
return EMPTY_CHAR;
else
return line->data[col].ch;
}