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[project @ 2003-09-29 16:32:17 by bursa]

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Textareas scroll to show current line.

svn path=/import/netsurf/; revision=332
This commit is contained in:
James Bursa 2003-09-29 16:32:17 +00:00
parent 20ae4bff71
commit 0a1975f8d6
2 changed files with 34 additions and 9 deletions
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38
desktop/browser.c
View File

@ -48,7 +48,7 @@ static char* browser_form_construct_get(struct page_elements *elements, struct f
static void browser_form_get_append(char **s, int *length, char sep, char *name, char *value);
static void browser_window_textarea_click(struct browser_window* bw,
unsigned long actual_x, unsigned long actual_y,
unsigned long x, unsigned long y,
long x, long y,
struct box *box);
static void browser_window_textarea_callback(struct browser_window *bw, char key, void *p);
static void browser_window_input_click(struct browser_window* bw,
@ -565,14 +565,14 @@ int browser_window_gadget_click(struct browser_window* bw, unsigned long click_x
void browser_window_textarea_click(struct browser_window* bw,
unsigned long actual_x, unsigned long actual_y,
unsigned long x, unsigned long y,
long x, long y,
struct box *textarea)
{
/* a textarea contains one or more inline containers, which contain
* the formatted paragraphs of text as inline boxes */
int char_offset, pixel_offset;
struct box *inline_container, *text_box;
int char_offset, pixel_offset, dy;
struct box *inline_container, *text_box, *ic;
for (inline_container = textarea->children;
inline_container && inline_container->y + inline_container->height < y;
@ -612,6 +612,16 @@ void browser_window_textarea_click(struct browser_window* bw,
&char_offset, &pixel_offset);
}
}
dy = textarea->height / 2 -
(inline_container->y + text_box->y + text_box->height / 2);
if (textarea->last->y + textarea->last->height + dy < textarea->height)
dy = textarea->height - textarea->last->y - textarea->last->height;
if (0 < textarea->children->y + dy)
dy = -textarea->children->y;
for (ic = textarea->children; ic; ic = ic->next)
ic->y += dy;
textarea->gadget->caret_inline_container = inline_container;
textarea->gadget->caret_text_box = text_box;
textarea->gadget->caret_char_offset = char_offset;
@ -619,6 +629,12 @@ void browser_window_textarea_click(struct browser_window* bw,
actual_y + inline_container->y + text_box->y,
text_box->height,
browser_window_textarea_callback, textarea);
gui_window_redraw(bw->window,
actual_x,
actual_y,
actual_x + textarea->width,
actual_y + textarea->height);
}
@ -631,8 +647,9 @@ void browser_window_textarea_callback(struct browser_window *bw, char key, void
struct box *textarea = p;
struct box *inline_container = textarea->gadget->caret_inline_container;
struct box *text_box = textarea->gadget->caret_text_box;
struct box *ic;
int char_offset = textarea->gadget->caret_char_offset;
int pixel_offset;
int pixel_offset, dy;
unsigned long actual_x, actual_y;
unsigned long width, height;
@ -811,6 +828,15 @@ void browser_window_textarea_callback(struct browser_window *bw, char key, void
assert(char_offset <= text_box->length);
}
dy = textarea->height / 2 -
(inline_container->y + text_box->y + text_box->height / 2);
if (textarea->last->y + textarea->last->height + dy < textarea->height)
dy = textarea->height - textarea->last->y - textarea->last->height;
if (0 < textarea->children->y + dy)
dy = -textarea->children->y;
for (ic = textarea->children; ic; ic = ic->next)
ic->y += dy;
pixel_offset = font_width(text_box->font, text_box->text, char_offset);
textarea->gadget->caret_inline_container = inline_container;
@ -823,7 +849,7 @@ void browser_window_textarea_callback(struct browser_window *bw, char key, void
gui_window_redraw(bw->window,
actual_x,
actual_y + inline_container->y,
actual_y,
actual_x + width,
actual_y + height);
}

5
render/box.h
View File

@ -111,9 +111,8 @@ struct plugin_params {
struct box {
box_type type;
struct css_style * style;
long x, y;
unsigned long width, height;
unsigned long min_width, max_width;
long x, y, width, height;
long min_width, max_width;
char * text;
unsigned int space : 1; /* 1 <=> followed by a space */
unsigned int clone : 1;