static gint
calc_preferred_width (HTMLObject *o,
HTMLPainter *painter)
{
return (* HTML_OBJECT_CLASS (parent_class)->calc_preferred_width) (o, painter)
+ 2 * html_painter_get_pixel_size (painter) * (HTML_CLUEV (o)->padding + HTML_CLUEV (o)->border_width);
}
static HTMLDirection
html_cluev_real_get_direction (HTMLObject *o)
{
if (HTML_CLUEV (o)->dir == HTML_DIRECTION_DERIVED && o->parent) {
return html_object_get_direction (o->parent);
}
return HTML_CLUEV (o)->dir;
}
static void
set_max_width (HTMLObject *o, HTMLPainter *painter, gint max_width)
{
HTMLObject *obj;
o->max_width = max_width;
max_width -= 2 * (HTML_CLUEV (o)->padding + HTML_CLUEV (o)->border_width) * html_painter_get_pixel_size (painter);
for (obj = HTML_CLUE (o)->head; obj != NULL; obj = obj->next)
html_object_set_max_width (obj, painter, max_width);
}
static gboolean
appended (HTMLClue *clue, HTMLClue *aclue)
{
/* Returns whether aclue is already in the alignList */
HTMLClueAligned *aligned;
if (aclue->halign == HTML_HALIGN_LEFT) {
aligned = HTML_CLUEALIGNED (HTML_CLUEV (clue)->align_left_list);
}
else {
aligned = HTML_CLUEALIGNED (HTML_CLUEV (clue)->align_right_list);
}
while (aligned) {
if (aligned == HTML_CLUEALIGNED (aclue))
return TRUE;
aligned = HTML_CLUEALIGNED (aligned->next_aligned);
}
return FALSE;
}
static void
reset (HTMLObject *clue)
{
HTMLClueV *cluev;
cluev = HTML_CLUEV (clue);
HTML_OBJECT_CLASS (&html_clue_class)->reset (clue);
cluev->align_left_list = NULL;
cluev->align_right_list = NULL;
}
static void
append_left_aligned (HTMLClue *clue, HTMLPainter *painter, HTMLClue *aclue, gint *lmargin, gint *rmargin, gint indent)
{
gint y_pos, y_inc;
html_clue_find_free_area (clue, painter,
HTML_OBJECT (aclue)->parent->y,
HTML_OBJECT (aclue)->width,
HTML_OBJECT (aclue)->ascent + HTML_OBJECT (aclue)->descent,
indent, &y_pos, lmargin, rmargin);
/* Set position */
y_inc = y_pos - HTML_OBJECT (aclue)->parent->y;
HTML_OBJECT (aclue)->x = *lmargin;
HTML_OBJECT (aclue)->y = HTML_OBJECT (aclue)->parent->ascent + HTML_OBJECT (aclue)->ascent + y_inc;
/* Insert clue in align list */
if (!HTML_CLUEV (clue)->align_left_list) {
HTML_CLUEV (clue)->align_left_list = HTML_OBJECT (aclue);
HTML_CLUEALIGNED (aclue)->next_aligned = NULL;
} else {
HTMLClueAligned *obj = HTML_CLUEALIGNED (HTML_CLUEV (clue)->align_left_list);
while (obj->next_aligned) {
if (obj == HTML_CLUEALIGNED (aclue))
return;
obj = obj->next_aligned;
}
if (obj == HTML_CLUEALIGNED (aclue))
return;
obj->next_aligned = HTML_CLUEALIGNED (aclue);
HTML_CLUEALIGNED (aclue)->next_aligned = NULL;
}
*lmargin += HTML_OBJECT (aclue)->width;
}
static void
html_cluev_destroy (HTMLObject *self)
{
HTMLClueV *cluev = HTML_CLUEV (self);
if (cluev->border_color)
html_color_unref (cluev->border_color);
cluev->border_color = NULL;
if (cluev->background_color)
html_color_unref (cluev->background_color);
cluev->background_color = NULL;
(* HTML_OBJECT_CLASS (parent_class)->destroy) (self);
}
static void
table_set_padding (HTMLEngine *e,
HTMLTable *t,
gint padding,
gboolean relative,
HTMLUndoDirection dir)
{
HTMLTableSetAttrUndo *undo;
gint r, c;
gint new_padding;
if (!t || !HTML_IS_TABLE (t))
return;
if (relative)
new_padding = t->padding + padding;
else
new_padding = padding;
if (new_padding < 0)
new_padding = 0;
if (new_padding == t->padding)
return;
undo = attr_undo_new (HTML_TABLE_PADDING);
undo->attr.padding = t->padding;
html_undo_add_action (e->undo, e,
html_undo_action_new ("Set table padding", table_set_padding_undo_action,
HTML_UNDO_DATA (undo),
html_cursor_get_position (e->cursor),
html_cursor_get_position (e->cursor)), dir);
t->padding = new_padding;
for (r = 0; r < t->totalRows; r++)
for (c = 0; c < t->totalCols; c++)
if (t->cells[r][c]->col == c && t->cells[r][c]->row == r) {
HTML_CLUEV (t->cells[r][c])->padding = new_padding;
HTML_OBJECT (t->cells[r][c])->change |= HTML_CHANGE_ALL_CALC;
}
html_object_change_set (HTML_OBJECT (t), HTML_CHANGE_ALL_CALC);
html_engine_schedule_update (e);
}
static gint
get_right_clear (HTMLClue *self,
gint y)
{
HTMLObject *p;
gint top_y, base_y;
/* XXX we assume the parent's size has already been calculated here. */
for (p = HTML_CLUEV (self)->align_right_list;
p != NULL;
p = HTML_OBJECT (HTML_CLUEALIGNED (p)->next_aligned)) {
base_y = p->y + p->parent->y - p->parent->ascent;
top_y = base_y - p->ascent;
if (top_y <= y && y < base_y + p->descent)
y = base_y + p->descent;
}
return y;
}
static gint
get_right_margin (HTMLObject *self, HTMLPainter *painter, gint y, gboolean with_aligned)
{
HTMLClueV *cluev;
/* FIXME: Should be HTMLAligned */
HTMLObject *aclue;
gint margin;
cluev = HTML_CLUEV (self);
margin = self->max_width - 2 * (cluev->padding + cluev->border_width)* html_painter_get_pixel_size (painter);
if (with_aligned)
for (aclue = cluev->align_right_list;
aclue != NULL;
aclue = cluev_next_aligned (aclue)) {
if ((aclue->y - aclue->ascent + aclue->parent->y - aclue->parent->ascent) <= y
&& aclue->y + aclue->parent->y - aclue->parent->ascent > y)
margin = aclue->x;
}
return margin;
}
static gint
get_left_margin (HTMLObject *self, HTMLPainter *painter, gint y, gboolean with_aligned)
{
HTMLObject *aclue;
HTMLClueV *cluev;
gint margin;
cluev = HTML_CLUEV (self);
margin = 0;
if (with_aligned)
for (aclue = cluev->align_left_list;
aclue != NULL;
aclue = cluev_next_aligned (aclue)) {
if ((aclue->y - aclue->ascent + aclue->parent->y - aclue->parent->ascent
<= y)
&& (aclue->y + aclue->parent->y - aclue->parent->ascent
> y))
margin = aclue->x + aclue->width;
}
return margin;
}
static gboolean
html_cluev_do_layout (HTMLObject *o, HTMLPainter *painter, gboolean calc_size, GList **changed_objs)
{
HTMLClueV *cluev;
HTMLClue *clue;
HTMLObject *obj;
HTMLObject *aclue;
GList *local_changed_objs;
gint lmargin;
gboolean changed;
gint old_width, old_ascent, old_descent;
gint new_x;
gint pixel_size;
gint padding;
gint padding2;
gboolean first_change;
gint first_y_off = 0;
/* printf ("HTMLClueV::do_layout\n"); */
cluev = HTML_CLUEV (o);
clue = HTML_CLUE (o);
pixel_size = html_painter_get_pixel_size (painter);
padding = pixel_size * (cluev->padding + cluev->border_width);
padding2 = 2 * padding;
old_width = o->width;
old_ascent = o->ascent;
old_descent = o->descent;
changed = FALSE;
first_change = TRUE;
local_changed_objs = NULL;
lmargin = get_lmargin (o, painter);
/* If we have already called calc_size for the children, then just
continue from the last object done in previous call. */
if (clue->curr != NULL) {
if (clue->curr->prev)
o->ascent = clue->curr->prev->y + clue->curr->prev->descent;
else
o->ascent = padding;
remove_aligned_by_parent (cluev, clue->curr);
} else {
o->width = 0;
o->ascent = padding;
o->descent = 0;
clue->curr = clue->head;
}
while (clue->curr != NULL) {
gint old_y, old_y_off, new_y_off;
/* Set an initial ypos so that the alignment stuff knows where
the top of this object is */
old_y = clue->curr->y;
old_y_off = clue->curr->y - clue->curr->ascent;
clue->curr->y = o->ascent;
switch (html_object_get_clear (clue->curr)) {
case HTML_CLEAR_ALL: {
gint y;
do {
y = clue->curr->y;
clue->curr->y = html_clue_get_left_clear (clue, clue->curr->y);
clue->curr->y = html_clue_get_right_clear (clue, clue->curr->y);
} while (clue->curr->y != y);
break;
}
case HTML_CLEAR_LEFT:
clue->curr->y = html_clue_get_left_clear (clue, clue->curr->y);
break;
case HTML_CLEAR_RIGHT:
clue->curr->y = html_clue_get_right_clear (clue, clue->curr->y);
break;
case HTML_CLEAR_NONE:
break;
case HTML_CLEAR_INHERIT:
/* TODO */
break;
}
o->ascent = clue->curr->y;
lmargin = get_lmargin (o, painter);
if (calc_size)
changed |= html_object_calc_size (clue->curr, painter, changed_objs);
if (o->width < clue->curr->width + padding2)
o->width = clue->curr->width + padding2;
o->ascent += clue->curr->ascent + clue->curr->descent;
new_y_off = o->ascent - clue->curr->descent - clue->curr->ascent;
if (clue->curr->x != lmargin || old_y_off != new_y_off) {
if (changed_objs) {
/* printf ("y: %d ", o->ascent - clue->curr->descent); */
if (first_change) {
first_change = FALSE;
/* if it's new one (y == 0) clear from new y_off, else from old one or new one,
which one is higher */
first_y_off = old_y && old_y_off < new_y_off ? old_y_off : new_y_off;
/* printf ("\nfirst_y_off: %d x %d --> %d\n", old_y_off, new_y_off, first_y_off); */
}
html_object_add_to_changed (&local_changed_objs, clue->curr);
}
}
clue->curr->x = lmargin;
clue->curr->y = o->ascent - clue->curr->descent;
clue->curr = clue->curr->next;
}
o->ascent += padding;
/* Remember the last object so that we can start from here next time
we are called. */
clue->curr = clue->tail;
if (o->max_width != 0 && o->width < o->max_width)
o->width = o->max_width;
if (clue->halign == HTML_HALIGN_CENTER) {
for (obj = clue->head; obj != 0; obj = obj->next) {
new_x = lmargin + (o->width - obj->width - padding2) / 2;
if (obj->x != new_x) {
obj->x = new_x;
changed = TRUE;
}
}
} else if (clue->halign == HTML_HALIGN_RIGHT) {
for (obj = clue->head; obj != 0; obj = obj->next) {
new_x = lmargin + (o->width - obj->width - padding2);
if (obj->x != new_x) {
obj->x = new_x;
changed = TRUE;
}
}
}
for (aclue = cluev->align_left_list; aclue != NULL; aclue = cluev_next_aligned (aclue)) {
if (aclue->y + aclue->parent->y - aclue->parent->ascent > o->ascent)
o->ascent = aclue->y + aclue->parent->y - aclue->parent->ascent;
}
for (aclue = cluev->align_right_list; aclue != NULL; aclue = cluev_next_aligned (aclue)) {
if (aclue->y + aclue->parent->y - aclue->parent->ascent > o->ascent)
o->ascent = aclue->y + aclue->parent->y - aclue->parent->ascent;
}
if (!changed
&& (o->ascent != old_ascent || o->descent != old_descent || o->width != old_width))
changed = TRUE;
if (changed_objs && local_changed_objs) {
if (!first_change && o->width > o->max_width) {
add_clear_area_behind (changed_objs, o, o->max_width, first_y_off,
o->width - o->max_width, o->ascent + o->descent - first_y_off);
}
*changed_objs = g_list_concat (local_changed_objs, *changed_objs);
}
return changed;
}
static gint
get_lmargin (HTMLObject *o, HTMLPainter *painter)
{
return (HTML_CLUEV (o)->padding + HTML_CLUEV (o)->border_width) * html_painter_get_pixel_size (painter)
+ (o->parent ? html_object_get_left_margin (o->parent, painter, o->y, TRUE) : 0);
}
static void
draw (HTMLObject *o,
HTMLPainter *p,
gint x, gint y,
gint width, gint height,
gint tx, gint ty)
{
HTMLObject *aclue;
HTMLClueV *cluev;
GdkRectangle paint;
cluev = HTML_CLUEV (o);
if (!html_object_intersect (o, &paint, x, y, width, height))
return;
if (cluev->background_color) {
html_painter_alloc_color (p, &cluev->background_color->color);
html_painter_draw_background (p,
&cluev->background_color->color,
NULL, tx + paint.x, ty + paint.y, paint.width, paint.height, 0, 0);
}
HTML_OBJECT_CLASS (&html_clue_class)->draw (o,
p,
x, y ,
width, height,
tx, ty);
tx += o->x;
ty += o->y - o->ascent;
for ( aclue = HTML_CLUEV (o)->align_left_list;
aclue != NULL;
aclue = cluev_next_aligned (aclue) ) {
html_object_draw (aclue,
p,
x - o->x - aclue->parent->x,
y - (o->y - o->ascent) - (aclue->parent->y - aclue->parent->ascent),
width - aclue->parent->x, height,
tx + aclue->parent->x,
ty + aclue->parent->y - aclue->parent->ascent);
}
for (aclue = HTML_CLUEV (o)->align_right_list;
aclue != NULL;
aclue = cluev_next_aligned (aclue)) {
html_object_draw (aclue,
p,
x - o->x - aclue->parent->x,
y - (o->y - o->ascent) - (aclue->parent->y - aclue->parent->ascent),
width - aclue->parent->x, height,
tx + aclue->parent->x,
ty + aclue->parent->y - aclue->parent->ascent);
}
if (cluev->border_style != HTML_BORDER_NONE && cluev->border_width > 0) {
GdkColor *color;
if (cluev->border_color) {
html_painter_alloc_color (p, &cluev->border_color->color);
color = &cluev->border_color->color;
} else {
HTMLEngine *e = html_object_engine (o, GTK_HTML (p->widget)->engine);
color = &html_colorset_get_color_allocated (e->settings->color_set,
p, HTMLTextColor)->color;
}
html_painter_draw_border (p, color,
tx, ty,
o->width,
o->ascent + o->descent,
cluev->border_style,
html_painter_get_pixel_size (p) * cluev->border_width);
}
}
static HTMLObject *
check_point (HTMLObject *self,
HTMLPainter *painter,
gint x, gint y,
guint *offset_return,
gboolean for_cursor)
{
HTMLObject *p;
HTMLObject *obj;
HTMLClueAligned *clue;
gint padding = HTML_CLUEV (self)->padding;
if (x < self->x || x >= self->x + self->width
|| y < self->y - self->ascent || y >= self->y + self->descent)
return NULL;
x = x - self->x;
y = y - self->y + self->ascent;
if (!for_cursor) {
if (x < padding || y < padding) {
if (offset_return)
*offset_return = 0;
return self;
}
if (x >= self->width - padding || y >= self->ascent + self->descent - padding) {
if (offset_return)
*offset_return = 1;
return self;
}
}
for (clue = HTML_CLUEALIGNED (HTML_CLUEV (self)->align_left_list);
clue != NULL;
clue = clue->next_aligned) {
HTMLObject *parent;
parent = HTML_OBJECT (clue)->parent;
obj = html_object_check_point (HTML_OBJECT (clue),
painter,
x - parent->x,
y - parent->y + parent->ascent,
offset_return,
for_cursor);
if (obj != NULL) {
return obj;
}
}
for (clue = HTML_CLUEALIGNED (HTML_CLUEV (self)->align_right_list);
clue != NULL;
clue = clue->next_aligned) {
HTMLObject *parent;
parent = HTML_OBJECT (clue)->parent;
obj = html_object_check_point (HTML_OBJECT (clue),
painter,
x - parent->x,
y - parent->y + parent->ascent,
offset_return,
for_cursor);
if (obj != NULL) {
return obj;
}
}
for (p = HTML_CLUE (self)->head; p != 0; p = p->next) {
gint x1, y1;
if (!for_cursor) {
x1 = x;
y1 = y;
} else {
if (x >= p->x + p->width) {
x1 = MAX (0, p->x + p->width - 1);
} else if (x < p->x) {
x1 = p->x;
} else {
x1 = x;
}
if (p->next == NULL && y > p->y + p->descent - 1) {
x1 = MAX (0, p->x + p->width - 1);
y1 = p->y + p->descent - 1;
} else if (p->prev == NULL && y < p->y - p->ascent) {
y1 = p->y - p->ascent;
} else {
y1 = y;
}
}
obj = html_object_check_point (p, painter, x1, y1, offset_return, for_cursor);
if (obj != NULL)
return obj;
}
if (!for_cursor) {
if (x >= 0 && y >= 0 && x < self->width && y < self->ascent + self->descent) {
if (offset_return) {
if (x < self->width/2)
*offset_return = 0;
else
*offset_return = 1;
}
return self;
}
}
return NULL;
}
static void
copy (HTMLObject *self,
HTMLObject *dest)
{
(* HTML_OBJECT_CLASS (parent_class)->copy) (self, dest);
HTML_CLUEV (dest)->padding = HTML_CLUEV (self)->padding;
HTML_CLUEV (dest)->border_width = HTML_CLUEV (self)->border_width;
HTML_CLUEV (dest)->border_style = HTML_CLUEV (self)->border_style;
HTML_CLUEV (dest)->border_color = HTML_CLUEV (self)->border_color;
if (HTML_CLUEV (dest)->border_color)
html_color_ref (HTML_CLUEV (dest)->border_color);
HTML_CLUEV (dest)->background_color = HTML_CLUEV (self)->background_color;
if (HTML_CLUEV (dest)->background_color)
html_color_ref (HTML_CLUEV (dest)->background_color);
HTML_CLUEV (dest)->align_left_list = NULL;
HTML_CLUEV (dest)->align_right_list = NULL;
HTML_CLUEV (dest)->dir = HTML_CLUEV (self)->dir;
}
static void
find_free_area (HTMLClue *clue, HTMLPainter *painter, gint y, gint width, gint height,
gint indent, gint *y_pos, gint *_lmargin, gint *_rmargin)
{
HTMLClueV *cluev = HTML_CLUEV (clue);
gint try_y = y;
gint lmargin;
gint rmargin;
gint lm, rm;
HTMLObject *aclue;
gint next_y, top_y, base_y=0;
next_y = 0;
while (1) {
lmargin = indent;
rmargin = HTML_OBJECT (clue)->max_width - 2 * (cluev->padding + cluev->border_width) * html_painter_get_pixel_size (painter);
for (aclue = cluev->align_left_list; aclue != 0; aclue = cluev_next_aligned (aclue)) {
base_y = (aclue->y + aclue->parent->y
- aclue->parent->ascent);
top_y = base_y - aclue->ascent;
if ((top_y < try_y + height) && (base_y > try_y)) {
lm = aclue->x + aclue->width;
if (lm > lmargin)
lmargin = lm;
if ((next_y == 0) || (base_y < next_y)) {
next_y = base_y;
}
}
}
for (aclue = cluev->align_right_list; aclue != 0; aclue = cluev_next_aligned (aclue)) {
base_y = (aclue->y + aclue->parent->y
- aclue->parent->ascent);
top_y = base_y - aclue->ascent;
if ((top_y < try_y + height) && (base_y > try_y)) {
rm = aclue->x;
if (rm < rmargin)
rmargin = rm;
if ((next_y == 0) || (base_y < next_y)) {
next_y = base_y;
}
}
}
if (lmargin == indent
&& rmargin == MAX (HTML_OBJECT (clue)->max_width, HTML_OBJECT (clue)->width))
break;
if ((rmargin - lmargin) >= width)
break;
if (try_y == next_y)
break;
try_y = next_y;
}
*y_pos = MAX (y, try_y);
*_rmargin = rmargin;
*_lmargin = lmargin;
}
