Text *
new_text(const char *string, Font *font, real height,
Point *pos, Color *color, Alignment align)
{
Text *text;
text = g_new(Text, 1);
text->font = font;
text->height = height;
text->position = *pos;
text->color = *color;
text->alignment = align;
text->cursor_pos = 0;
text->cursor_row = 0;
text->focus.obj = NULL;
text->focus.has_focus = FALSE;
text->focus.user_data = (void *)text;
text->focus.key_event = text_key_event;
set_string(text, string);
calc_width(text);
calc_ascent_descent(text);
return text;
}
void
text_set_font(Text *text, Font *font)
{
text->font = font;
calc_width(text);
calc_ascent_descent(text);
}
void
text_set_height(Text *text, real height)
{
text->height = height;
calc_width(text);
calc_ascent_descent(text);
}
void
text_set_height(Text *text, real height)
{
int i;
text->height = height;
for (i = 0; i < text->numlines; i++) {
text_line_set_height(text->lines[i], height);
}
calc_width(text);
calc_ascent_descent(text);
}
int
text_delete_all(Text *text, ObjectChange **change, DiaObject *obj)
{
if (!text_is_empty(text)) {
*change = text_create_change(text, TYPE_DELETE_ALL,
0, text->cursor_pos, text->cursor_row,
obj);
text_set_string(text, "");
calc_ascent_descent(text);
return TRUE;
}
return FALSE;
}
void
text_set_font(Text *text, DiaFont *font)
{
DiaFont *old_font = text->font;
int i;
text->font = dia_font_ref(font);
dia_font_unref(old_font);
for (i = 0; i < text->numlines; i++) {
text_line_set_font(text->lines[i], font);
}
calc_width(text);
calc_ascent_descent(text);
}
void
text_calc_boundingbox(Text *text, Rectangle *box)
{
calc_width(text);
calc_ascent_descent(text);
if (box == NULL) return; /* For those who just want the text info
updated */
box->left = text->position.x;
switch (text->alignment) {
case ALIGN_LEFT:
break;
case ALIGN_CENTER:
box->left -= text->max_width / 2.0;
break;
case ALIGN_RIGHT:
box->left -= text->max_width;
break;
}
box->right = box->left + text->max_width;
box->top = text->position.y - text->ascent;
#if 0
box->bottom = box->top + text->height*text->numlines + text->descent;
#else
/* why should we add one descent? isn't ascent+descent~=height? */
box->bottom = box->top + (text->ascent+text->descent+text->height*(text->numlines-1));
#endif
if (text->focus.has_focus) {
real height = text->ascent + text->descent;
if (text->cursor_pos == 0) {
/* Half the cursor width */
box->left -= height/(CURSOR_HEIGHT_RATIO*2);
} else {
/* Half the cursor width. Assume that
if it isn't at position zero, it might be
at the last position possible. */
box->right += height/(CURSOR_HEIGHT_RATIO*2);
}
/* Account for the size of the cursor top and bottom */
box->top -= height/(CURSOR_HEIGHT_RATIO*2);
box->bottom += height/CURSOR_HEIGHT_RATIO;
}
}
