mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-22 20:16:54 +03:00
Merged revisions 8808,8862-8863 via svnmerge from
svn://svn.netsurf-browser.org/branches/paulblokus/textinput ........ r8808 | paulblokus | 2009-07-26 22:52:53 +0100 (Sun, 26 Jul 2009) | 2 lines don't recalculate height already aviable ........ r8862 | paulblokus | 2009-07-28 21:39:06 +0100 (Tue, 28 Jul 2009) | 2 lines added css.c and css.h files which caused svn errors after using svnmerge ........ r8863 | paulblokus | 2009-07-28 21:43:53 +0100 (Tue, 28 Jul 2009) | 3 lines changed textarea redraw logic little fix of KEY_DELETE_LINE_START jandling ........ svn path=/trunk/netsurf/; revision=8886
This commit is contained in:
Michael Drake
parent
efc284836b
commit
39546fd504
@ -42,18 +42,18 @@
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#define BORDER_COLOR 0x000000
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#define SELECTION_COL 0xFFDDDD
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static plot_style_t pstyle_fill_selection = {
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static plot_style_t pstyle_fill_selection = {
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.fill_type = PLOT_OP_TYPE_SOLID,
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.fill_colour = SELECTION_COL,
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};
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static plot_style_t pstyle_stroke_border = {
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static plot_style_t pstyle_stroke_border = {
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.stroke_type = PLOT_OP_TYPE_SOLID,
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.stroke_colour = BORDER_COLOR,
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.stroke_width = 1,
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};
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static plot_style_t pstyle_stroke_caret = {
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static plot_style_t pstyle_stroke_caret = {
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.stroke_type = PLOT_OP_TYPE_SOLID,
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.stroke_colour = CARET_COLOR,
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.stroke_width = 1,
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@ -72,11 +72,11 @@ struct text_area {
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* it is the canvas which gets
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* scrolled)
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*/
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int scroll_x, scroll_y; /**< scroll offsets of the textarea
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* content
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*/
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unsigned int flags; /**< Textarea flags */
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int vis_width; /**< Visible width, in pixels */
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int vis_height; /**< Visible height, in pixels */
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@ -93,23 +93,25 @@ struct text_area {
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* specified line
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*/
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} caret_pos;
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int caret_x; /**< cached X coordinate of the caret */
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int caret_y; /**< cached Y coordinate of the caret */
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int selection_start; /**< Character index of sel start(inclusive) */
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int selection_end; /**< Character index of sel end(exclusive) */
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plot_font_style_t fstyle; /**< Text style */
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int line_count; /**< Count of lines */
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#define LINE_CHUNK_SIZE 16
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struct line_info *lines; /**< Line info array */
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int line_height; /**< Line height obtained from style */
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/** Callback functions for a redraw request */
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textarea_start_redraw_callback redraw_start_callback;
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textarea_start_redraw_callback redraw_end_callback;
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/** Callback function for a redraw request */
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textarea_redraw_request_callback redraw_request;
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void *data; /** < Callback data for both callback functions */
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int drag_start_char; /**< Character index at which the drag was
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* started
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*/
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@ -142,26 +144,24 @@ static void textarea_normalise_text(struct text_area *ta,
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* \param data user specified data which will be passed to redraw callbacks
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* \return Opaque handle for textarea or 0 on error
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*/
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struct text_area *textarea_create(int x, int y, int width, int height,
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struct text_area *textarea_create(int x, int y, int width, int height,
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unsigned int flags, const plot_font_style_t *style,
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textarea_start_redraw_callback redraw_start_callback,
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textarea_end_redraw_callback redraw_end_callback, void *data)
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textarea_redraw_request_callback redraw_request, void *data)
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{
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struct text_area *ret;
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if (redraw_start_callback == NULL || redraw_end_callback == NULL) {
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if (redraw_request == NULL) {
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LOG(("no callback provided"));
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return NULL;
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}
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ret = malloc(sizeof(struct text_area));
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if (ret == NULL) {
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LOG(("malloc failed"));
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return NULL;
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}
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ret->redraw_start_callback = redraw_start_callback;
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ret->redraw_end_callback = redraw_end_callback;
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ret->redraw_request = redraw_request;
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ret->data = data;
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ret->x = x;
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ret->y = y;
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@ -170,8 +170,8 @@ struct text_area *textarea_create(int x, int y, int width, int height,
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ret->scroll_x = 0;
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ret->scroll_y = 0;
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ret->drag_start_char = 0;
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ret->flags = flags;
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ret->text = malloc(64);
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if (ret->text == NULL) {
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@ -187,13 +187,15 @@ struct text_area *textarea_create(int x, int y, int width, int height,
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ret->fstyle = *style;
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ret->line_height = FIXTOINT(FDIVI((FMUL(FLTTOFIX(1.2),
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FMULI(nscss_screen_dpi,
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FMULI(nscss_screen_dpi,
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(style->size / FONT_SIZE_SCALE)))), 72));
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ret->caret_pos.line = ret->caret_pos.char_off = 0;
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ret->caret_x = ret->x + MARGIN_LEFT;
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ret->caret_y = ret->y;
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ret->selection_start = -1;
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ret->selection_end = -1;
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ret->line_count = 0;
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ret->lines = NULL;
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@ -211,12 +213,9 @@ struct text_area *textarea_create(int x, int y, int width, int height,
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void textarea_set_position(struct text_area *ta, int x, int y)
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{
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ta->x = x;
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ta->y = y;
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ta->redraw_start_callback(ta->data);
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textarea_redraw(ta, ta->x, ta->y, ta->x + ta->vis_width,
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ta->y = y;
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ta->redraw_request(ta->data, ta->x, ta->y, ta->x + ta->vis_width,
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ta->y + ta->vis_height);
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textarea_set_caret(ta, textarea_get_caret(ta));
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ta->redraw_start_callback(ta->data);
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}
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@ -257,9 +256,9 @@ bool textarea_set_text(struct text_area *ta, const char *text)
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memcpy(ta->text, text, len);
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ta->text_len = len;
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ta->text_utf8_len = utf8_length(ta->text);
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textarea_normalise_text(ta, 0, len);
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return textarea_reflow(ta, 0);
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}
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@ -335,12 +334,12 @@ bool textarea_insert_text(struct text_area *ta, unsigned int index,
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memcpy(ta->text + b_off, text, b_len);
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ta->text_len += b_len;
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ta->text_utf8_len += utf8_length(text);
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textarea_normalise_text(ta, b_off, b_len);
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textarea_normalise_text(ta, b_off, b_len);
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/** \todo calculate line to reflow from */
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return textarea_reflow(ta, 0);
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}
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@ -405,7 +404,7 @@ bool textarea_replace_text(struct text_area *ta, unsigned int start,
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/* Insert new text */
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memcpy(ta->text + b_start, text, b_len);
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ta->text_len += b_len - (b_end - b_start);
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ta->text_len += b_len - (b_end - b_start);
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ta->text_utf8_len = utf8_length(ta->text);
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textarea_normalise_text(ta, b_start, b_len);
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@ -430,14 +429,10 @@ bool textarea_set_caret(struct text_area *ta, int caret)
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int index;
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int x, y;
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int x0, y0, x1, y1;
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int height = 0;
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if (ta->flags & TEXTAREA_READONLY)
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return true;
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ta->redraw_start_callback(ta->data);
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c_len = ta->text_utf8_len;
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if (caret != -1 && (unsigned)caret > c_len)
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@ -450,44 +445,48 @@ bool textarea_set_caret(struct text_area *ta, int caret)
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index = textarea_get_caret(ta);
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if (index == -1)
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return false;
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/* the redraw might happen in response to a text-change and
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the caret position might be beyond the current text */
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if ((unsigned)index > c_len)
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index = c_len;
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/* find byte offset of caret position */
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for (b_off = 0; index-- > 0;
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b_off = utf8_next(ta->text,
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ta->text_len, b_off))
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; /* do nothing */
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nsfont.font_width(&ta->fstyle,
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ta->text +
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ta->lines[ta->caret_pos.line].b_start,
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b_off - ta->lines[ta->caret_pos.line].b_start,
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&x);
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x += ta->x + MARGIN_LEFT - ta->scroll_x;
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y = ta->line_height * ta->caret_pos.line + ta->y - ta->scroll_y;
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textarea_redraw(ta, x - 1, y - 1, x + 1, y + height + 1);
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/* set the caret coordinate beyond the redraw rectangle */
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ta->caret_x = x - 2;
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ta->redraw_request(ta->data, x - 1, y - 1, x + 1,
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y + ta->line_height + 1);
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}
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/* check if the caret has to be drawn at all */
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if (caret != -1) {
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/* Find byte offset of caret position */
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for (b_off = 0; caret > 0; caret--)
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b_off = utf8_next(ta->text, ta->text_len, b_off);
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/* Now find line in which byte offset appears */
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for (i = 0; i < ta->line_count - 1; i++)
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if (ta->lines[i + 1].b_start > b_off)
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break;
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ta->caret_pos.line = i;
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/* Now calculate the char. offset of the caret in this line */
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for (c_len = 0, ta->caret_pos.char_off = 0;
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c_len < b_off - ta->lines[i].b_start;
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@ -495,42 +494,43 @@ bool textarea_set_caret(struct text_area *ta, int caret)
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ta->lines[i].b_start,
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ta->lines[i].b_length, c_len))
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ta->caret_pos.char_off++;
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if (textarea_scroll_visible(ta))
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textarea_redraw(ta, ta->x, ta->y, ta->x + ta->vis_width,
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ta->y + ta->vis_height);
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/* Finally, redraw the caret */
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index = textarea_get_caret(ta);
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if (index == -1)
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return false;
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/* find byte offset of caret position */
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for (b_off = 0; index-- > 0;
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b_off = utf8_next(ta->text,
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ta->text_len, b_off))
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; /* do nothing */
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nsfont.font_width(&ta->fstyle,
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ta->text +
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ta->lines[ta->caret_pos.line].b_start,
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b_off - ta->lines[ta->caret_pos.line].b_start,
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&x);
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x += ta->x + MARGIN_LEFT - ta->scroll_x;
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ta->caret_x = x;
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y = ta->line_height * ta->caret_pos.line + ta->y - ta->scroll_y;
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x0 = max(x - 1, ta->x + MARGIN_LEFT);
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y0 = max(y - 1, ta->y);
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x1 = min(x + 1, ta->x + ta->vis_width - MARGIN_RIGHT);
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y1 = min(y + height + 1, ta->y + ta->vis_height);
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plot.clip(x0, y0, x1, y1);
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plot.line(x, y, x, y + height, &pstyle_stroke_caret);
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ta->caret_y = y;
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if (textarea_scroll_visible(ta))
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ta->redraw_request(ta->data, ta->x, ta->y,
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ta->x + ta->vis_width,
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ta->y + ta->vis_height);
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else {
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x0 = max(x - 1, ta->x + MARGIN_LEFT);
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y0 = max(y - 1, ta->y);
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x1 = min(x + 1, ta->x + ta->vis_width - MARGIN_RIGHT);
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y1 = min(y + ta->line_height + 1,
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ta->y + ta->vis_height);
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ta->redraw_request(ta->data, x0, y0, x1, y1);
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}
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}
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ta->redraw_end_callback(ta->data);
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return true;
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}
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@ -557,7 +557,7 @@ unsigned int textarea_get_xy_offset(struct text_area *ta, int x, int y)
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if (x < 0)
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x = 0;
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line = y / ta->line_height;
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if (line < 0)
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@ -566,9 +566,9 @@ unsigned int textarea_get_xy_offset(struct text_area *ta, int x, int y)
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line = ta->line_count - 1;
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nsfont.font_position_in_string(&ta->fstyle,
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ta->text + ta->lines[line].b_start,
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ta->text + ta->lines[line].b_start,
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ta->lines[line].b_length, x, &b_off, &x);
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/* If the calculated byte offset corresponds with the number of bytes
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* in the line, and the line has been soft-wrapped, then ensure the
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* caret offset is before the trailing space character, rather than
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@ -599,10 +599,10 @@ unsigned int textarea_get_xy_offset(struct text_area *ta, int x, int y)
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bool textarea_set_caret_xy(struct text_area *ta, int x, int y)
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{
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unsigned int c_off;
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if (ta->flags & TEXTAREA_READONLY)
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return true;
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c_off = textarea_get_xy_offset(ta, x, y);
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return textarea_set_caret(ta, c_off);
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}
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@ -618,11 +618,11 @@ int textarea_get_caret(struct text_area *ta)
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{
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unsigned int c_off = 0, b_off;
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/* if the text is a trailing NUL only */
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if (ta->text_utf8_len == 0)
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return 0;
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/* Calculate character offset of this line's start */
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for (b_off = 0; b_off < ta->lines[ta->caret_pos.line].b_start;
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b_off = utf8_next(ta->text, ta->text_len, b_off))
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@ -677,7 +677,7 @@ bool textarea_reflow(struct text_area *ta, unsigned int line)
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nsfont.font_split(&ta->fstyle, text, len,
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ta->vis_width - MARGIN_LEFT - MARGIN_RIGHT,
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&b_off, &x);
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if (line_count > 0 && line_count % LINE_CHUNK_SIZE == 0) {
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struct line_info *temp = realloc(ta->lines,
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(line_count + LINE_CHUNK_SIZE) *
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@ -728,10 +728,11 @@ bool textarea_reflow(struct text_area *ta, unsigned int line)
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}
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ta->line_count = line_count;
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return true;
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}
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/**
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* Handle redraw requests for text areas
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*
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@ -741,29 +742,36 @@ bool textarea_reflow(struct text_area *ta, unsigned int line)
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* \param x1 right X coordinate of redraw area
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* \param y1 bottom Y coordinate of redraw area
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*/
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void textarea_redraw(struct text_area *ta, int x0, int y0, int x1, int y1)
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void textarea_redraw(struct text_area *ta, int clip_x0, int clip_y0,
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int clip_x1, int clip_y1)
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{
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int line0, line1, line;
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int chars, offset;
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unsigned int c_pos, c_len, b_start, b_end, line_len;
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char *line_text;
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plot_style_t plot_style_fill_bg = {
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int x0, x1, y0, y1;
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plot_style_t plot_style_fill_bg = {
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.fill_type = PLOT_OP_TYPE_SOLID,
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.fill_colour = BACKGROUND_COL,
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};
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x0 = clip_x0;
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x1 = clip_x1;
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y0 = clip_y0;
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y1 = clip_y1;
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if (x1 < ta->x || x0 > ta->x + ta->vis_width || y1 < ta->y ||
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y0 > ta->y + ta->vis_height)
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/* Textarea outside the clipping rectangle */
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return;
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if (ta->lines == NULL)
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/* Nothing to redraw */
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return;
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if (ta->flags & TEXTAREA_READONLY)
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plot_style_fill_bg.fill_colour = READONLY_BG;
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line0 = (y0 - ta->y + ta->scroll_y) / ta->line_height - 1;
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line1 = (y1 - ta->y + ta->scroll_y) / ta->line_height + 1;
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@ -786,25 +794,25 @@ void textarea_redraw(struct text_area *ta, int x0, int y0, int x1, int y1)
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x1 = ta->x + ta->vis_width;
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if (y1 > ta->y + ta->vis_height)
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y1 = ta->y + ta->vis_height;
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plot.clip(x0, y0, x1, y1);
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plot.rectangle(x0, y0, x1, y1, &plot_style_fill_bg);
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plot.rectangle(ta->x, ta->y,
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ta->x + ta->vis_width - 1, ta->y + ta->vis_height - 1,
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plot.rectangle(ta->x, ta->y,
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ta->x + ta->vis_width - 1, ta->y + ta->vis_height - 1,
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&pstyle_stroke_border);
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if (x0 < ta->x + MARGIN_LEFT)
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||||
x0 = ta->x + MARGIN_LEFT;
|
||||
if (x1 > ta->x + ta->vis_width - MARGIN_RIGHT)
|
||||
x1 = ta->x + ta->vis_width - MARGIN_RIGHT;
|
||||
plot.clip(x0, y0, x1, y1);
|
||||
|
||||
|
||||
if (line0 > 0)
|
||||
c_pos = utf8_bounded_length(ta->text,
|
||||
ta->lines[line0].b_start - 1);
|
||||
else
|
||||
c_pos = 0;
|
||||
|
||||
|
||||
for (line = line0; (line <= line1) &&
|
||||
(ta->y + line * ta->line_height <= y1 + ta->scroll_y);
|
||||
line++) {
|
||||
@ -814,29 +822,29 @@ void textarea_redraw(struct text_area *ta, int x0, int y0, int x1, int y1)
|
||||
c_len = utf8_bounded_length(
|
||||
&(ta->text[ta->lines[line].b_start]),
|
||||
ta->lines[line].b_length);
|
||||
|
||||
|
||||
/* if there is a newline between the lines count it too */
|
||||
if (line < ta->line_count - 1 && ta->lines[line + 1].b_start !=
|
||||
ta->lines[line].b_start +
|
||||
ta->lines[line].b_length)
|
||||
c_len++;
|
||||
|
||||
|
||||
/* check if a part of the line is selected, won't happen if no
|
||||
selection (ta->selection_end = -1) */
|
||||
if (ta->selection_end != -1 &&
|
||||
c_pos < (unsigned)ta->selection_end &&
|
||||
c_pos + c_len > (unsigned)ta->selection_start) {
|
||||
|
||||
|
||||
/* offset from the beginning of the line */
|
||||
offset = ta->selection_start - c_pos;
|
||||
chars = ta->selection_end - c_pos -
|
||||
(offset > 0 ? offset:0);
|
||||
|
||||
|
||||
line_text = &(ta->text[ta->lines[line].b_start]);
|
||||
line_len = ta->lines[line].b_length;
|
||||
|
||||
|
||||
if (offset > 0) {
|
||||
|
||||
|
||||
/* find byte start of the selected part */
|
||||
for (b_start = 0; offset > 0; offset--)
|
||||
b_start = utf8_next(line_text,
|
||||
@ -850,10 +858,10 @@ void textarea_redraw(struct text_area *ta, int x0, int y0, int x1, int y1)
|
||||
x0 = ta->x + MARGIN_LEFT;
|
||||
b_start = 0;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
if (chars >= 0) {
|
||||
|
||||
|
||||
/* find byte end of the selected part */
|
||||
for (b_end = b_start; chars > 0 &&
|
||||
b_end < line_len;
|
||||
@ -864,7 +872,7 @@ void textarea_redraw(struct text_area *ta, int x0, int y0, int x1, int y1)
|
||||
}
|
||||
else
|
||||
b_end = ta->lines[line].b_length;
|
||||
|
||||
|
||||
b_end -= b_start;
|
||||
nsfont.font_width(&ta->fstyle,
|
||||
&(ta->text[ta->lines[line].b_start +
|
||||
@ -878,14 +886,14 @@ void textarea_redraw(struct text_area *ta, int x0, int y0, int x1, int y1)
|
||||
ta->y + (line + 1) * ta->line_height -
|
||||
1 - ta->scroll_y,
|
||||
&pstyle_fill_selection);
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
c_pos += c_len;
|
||||
|
||||
y0 = ta->y + line * ta->line_height + 0.75 * ta->line_height;
|
||||
|
||||
ta->fstyle.background =
|
||||
ta->fstyle.background =
|
||||
(ta->flags & TEXTAREA_READONLY) ?
|
||||
READONLY_BG : BACKGROUND_COL,
|
||||
|
||||
@ -894,6 +902,14 @@ void textarea_redraw(struct text_area *ta, int x0, int y0, int x1, int y1)
|
||||
ta->lines[line].b_length,
|
||||
&ta->fstyle);
|
||||
}
|
||||
|
||||
|
||||
if (ta->caret_x >= clip_x0 && ta->caret_x <= clip_x1) {
|
||||
if (ta->caret_y >= clip_y0 && ta->caret_y <= clip_y1)
|
||||
plot.line(ta->caret_x, ta->caret_y, ta->caret_x,
|
||||
ta->caret_y + ta->line_height,
|
||||
&pstyle_stroke_caret);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
@ -914,13 +930,13 @@ bool textarea_keypress(struct text_area *ta, uint32_t key)
|
||||
caret_init = caret = textarea_get_caret(ta);
|
||||
line = ta->caret_pos.line;
|
||||
readonly = (ta->flags & TEXTAREA_READONLY ? true:false);
|
||||
|
||||
|
||||
|
||||
|
||||
if (!(key <= 0x001F || (0x007F <= key && key <= 0x009F))) {
|
||||
/* normal character insertion */
|
||||
/* normal character insertion */
|
||||
length = utf8_from_ucs4(key, utf8);
|
||||
utf8[length] = '\0';
|
||||
|
||||
|
||||
if (!textarea_insert_text(ta, caret, utf8))
|
||||
return false;
|
||||
caret++;
|
||||
@ -929,7 +945,7 @@ bool textarea_keypress(struct text_area *ta, uint32_t key)
|
||||
} else switch (key) {
|
||||
case KEY_SELECT_ALL:
|
||||
caret = ta->text_utf8_len;
|
||||
|
||||
|
||||
ta->selection_start = 0;
|
||||
ta->selection_end = ta->text_utf8_len;
|
||||
redraw = true;
|
||||
@ -943,7 +959,7 @@ bool textarea_keypress(struct text_area *ta, uint32_t key)
|
||||
if (!textarea_replace_text(ta,
|
||||
ta->selection_start,
|
||||
ta->selection_end, ""))
|
||||
return false;
|
||||
return false;
|
||||
ta->selection_start = ta->selection_end = -1;
|
||||
redraw = true;
|
||||
} else {
|
||||
@ -971,7 +987,7 @@ bool textarea_keypress(struct text_area *ta, uint32_t key)
|
||||
case KEY_PASTE:
|
||||
case KEY_CUT_SELECTION:
|
||||
break;
|
||||
case KEY_ESCAPE:
|
||||
case KEY_ESCAPE:
|
||||
case KEY_CLEAR_SELECTION:
|
||||
ta->selection_start = -1;
|
||||
ta->selection_end = -1;
|
||||
@ -1008,7 +1024,7 @@ bool textarea_keypress(struct text_area *ta, uint32_t key)
|
||||
ta->line_height
|
||||
+ 1;
|
||||
}
|
||||
/* fall through */
|
||||
/* fall through */
|
||||
case KEY_UP:
|
||||
if (readonly)
|
||||
break;
|
||||
@ -1022,28 +1038,28 @@ bool textarea_keypress(struct text_area *ta, uint32_t key)
|
||||
line = 0;
|
||||
if (line == ta->caret_pos.line)
|
||||
break;
|
||||
|
||||
|
||||
b_off = ta->lines[line].b_start;
|
||||
b_len = ta->lines[line].b_length;
|
||||
|
||||
|
||||
c_line = ta->caret_pos.line;
|
||||
c_chars = ta->caret_pos.char_off;
|
||||
|
||||
|
||||
if (ta->text[b_off + b_len - 1] == ' '
|
||||
&& line < ta->line_count - 1)
|
||||
b_len--;
|
||||
|
||||
|
||||
l_len = utf8_bounded_length(&(ta->text[b_off]),
|
||||
b_len);
|
||||
|
||||
|
||||
|
||||
|
||||
ta->caret_pos.line = line;
|
||||
ta->caret_pos.char_off = min(l_len,
|
||||
(unsigned)
|
||||
ta->caret_pos.char_off);
|
||||
|
||||
|
||||
caret = textarea_get_caret(ta);
|
||||
|
||||
|
||||
ta->caret_pos.line = c_line;
|
||||
ta->caret_pos.char_off = c_chars;
|
||||
}
|
||||
@ -1057,7 +1073,7 @@ bool textarea_keypress(struct text_area *ta, uint32_t key)
|
||||
ta->line_height - 1) /
|
||||
ta->line_height
|
||||
- 1;
|
||||
}
|
||||
}
|
||||
/* fall through */
|
||||
case KEY_DOWN:
|
||||
if (readonly)
|
||||
@ -1072,28 +1088,28 @@ bool textarea_keypress(struct text_area *ta, uint32_t key)
|
||||
line = ta->line_count - 1;
|
||||
if (line == ta->caret_pos.line)
|
||||
break;
|
||||
|
||||
|
||||
b_off = ta->lines[line].b_start;
|
||||
b_len = ta->lines[line].b_length;
|
||||
|
||||
|
||||
c_line = ta->caret_pos.line;
|
||||
c_chars = ta->caret_pos.char_off;
|
||||
|
||||
|
||||
if (ta->text[b_off + b_len - 1] == ' '
|
||||
&& line < ta->line_count - 1)
|
||||
b_len--;
|
||||
|
||||
|
||||
l_len = utf8_bounded_length(&(ta->text[b_off]),
|
||||
b_len);
|
||||
|
||||
|
||||
|
||||
|
||||
ta->caret_pos.line = line;
|
||||
ta->caret_pos.char_off = min(l_len,
|
||||
(unsigned)
|
||||
ta->caret_pos.char_off);
|
||||
|
||||
|
||||
caret = textarea_get_caret(ta);
|
||||
|
||||
|
||||
ta->caret_pos.line = c_line;
|
||||
ta->caret_pos.char_off = c_chars;
|
||||
}
|
||||
@ -1106,7 +1122,7 @@ bool textarea_keypress(struct text_area *ta, uint32_t key)
|
||||
ta->selection_start,
|
||||
ta->selection_end, ""))
|
||||
return false;
|
||||
|
||||
|
||||
ta->selection_start = ta->selection_end = -1;
|
||||
redraw = true;
|
||||
} else {
|
||||
@ -1117,7 +1133,7 @@ bool textarea_keypress(struct text_area *ta, uint32_t key)
|
||||
redraw = true;
|
||||
}
|
||||
}
|
||||
break;
|
||||
break;
|
||||
case KEY_LINE_START:
|
||||
if (readonly)
|
||||
break;
|
||||
@ -1130,7 +1146,7 @@ bool textarea_keypress(struct text_area *ta, uint32_t key)
|
||||
case KEY_LINE_END:
|
||||
if (readonly)
|
||||
break;
|
||||
|
||||
|
||||
caret = utf8_bounded_length(ta->text,
|
||||
ta->lines[ta->caret_pos.line].b_start +
|
||||
ta->lines[ta->caret_pos.line].b_length);
|
||||
@ -1142,7 +1158,7 @@ bool textarea_keypress(struct text_area *ta, uint32_t key)
|
||||
ta->selection_start = ta->selection_end = -1;
|
||||
redraw = true;
|
||||
}
|
||||
break;
|
||||
break;
|
||||
case KEY_TEXT_START:
|
||||
if (readonly)
|
||||
break;
|
||||
@ -1194,30 +1210,28 @@ bool textarea_keypress(struct text_area *ta, uint32_t key)
|
||||
return false;
|
||||
ta->selection_start = ta->selection_end = -1;
|
||||
} else {
|
||||
if (textarea_replace_text(ta,
|
||||
if (!textarea_replace_text(ta,
|
||||
caret - ta->caret_pos.char_off,
|
||||
caret,
|
||||
""))
|
||||
return false;
|
||||
caret -= ta->caret_pos.char_off;
|
||||
}
|
||||
redraw = true;
|
||||
redraw = true;
|
||||
break;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
|
||||
if (caret != caret_init)
|
||||
textarea_set_caret(ta, caret);
|
||||
//TODO:redraw only the important part
|
||||
if (redraw) {
|
||||
ta->redraw_start_callback(ta->data);
|
||||
textarea_redraw(ta, ta->x, ta->y, ta->x + ta->vis_width,
|
||||
ta->y + ta->vis_height);
|
||||
ta->redraw_end_callback(ta->data);
|
||||
ta->redraw_request(ta->data, ta->x, ta->y,
|
||||
ta->x + ta->vis_width, ta->y + ta->vis_height);
|
||||
}
|
||||
|
||||
if (caret != caret_init || redraw)
|
||||
return textarea_set_caret(ta, caret);
|
||||
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -1232,15 +1246,15 @@ bool textarea_scroll_visible(struct text_area *ta)
|
||||
int x0, x1, y0, y1, x, y;
|
||||
int index, b_off;
|
||||
bool scrolled = false;
|
||||
|
||||
|
||||
if (ta->caret_pos.char_off == -1)
|
||||
return false;
|
||||
|
||||
|
||||
x0 = ta->x + MARGIN_LEFT;
|
||||
x1 = ta->x + ta->vis_width - MARGIN_RIGHT;
|
||||
y0 = ta->y;
|
||||
y1 = ta->y + ta->vis_height;
|
||||
|
||||
|
||||
index = textarea_get_caret(ta);
|
||||
|
||||
/* find byte offset of caret position */
|
||||
@ -1252,11 +1266,11 @@ bool textarea_scroll_visible(struct text_area *ta)
|
||||
ta->text + ta->lines[ta->caret_pos.line].b_start,
|
||||
b_off - ta->lines[ta->caret_pos.line].b_start,
|
||||
&x);
|
||||
|
||||
|
||||
/* top-left of caret */
|
||||
x += ta->x + MARGIN_LEFT - ta->scroll_x;
|
||||
y = ta->line_height * ta->caret_pos.line + ta->y - ta->scroll_y;
|
||||
|
||||
|
||||
/* check and change vertical scroll */
|
||||
if (y < y0) {
|
||||
ta->scroll_y -= y0 - y;
|
||||
@ -1266,7 +1280,7 @@ bool textarea_scroll_visible(struct text_area *ta)
|
||||
scrolled = true;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* check and change horizontal scroll */
|
||||
if (x < x0) {
|
||||
ta->scroll_x -= x0 - x ;
|
||||
@ -1275,7 +1289,7 @@ bool textarea_scroll_visible(struct text_area *ta)
|
||||
ta->scroll_x += x - (x1 - 1);
|
||||
scrolled = true;
|
||||
}
|
||||
|
||||
|
||||
return scrolled;
|
||||
}
|
||||
|
||||
@ -1291,20 +1305,19 @@ bool textarea_scroll_visible(struct text_area *ta)
|
||||
*/
|
||||
bool textarea_mouse_action(struct text_area *ta, browser_mouse_state mouse,
|
||||
int x, int y)
|
||||
{
|
||||
{
|
||||
int c_start, c_end;
|
||||
|
||||
|
||||
/* mouse button pressed above the text area, move caret */
|
||||
if (mouse & BROWSER_MOUSE_PRESS_1) {
|
||||
if (!(ta->flags & TEXTAREA_READONLY))
|
||||
textarea_set_caret_xy(ta, x, y);
|
||||
if (ta->selection_start != -1) {
|
||||
ta->selection_start = ta->selection_end = -1;
|
||||
ta->redraw_start_callback(ta->data);
|
||||
textarea_redraw(ta, ta->x, ta->y, ta->x + ta->vis_width,
|
||||
ta->redraw_request(ta->data, ta->x, ta->y,
|
||||
ta->x + ta->vis_width,
|
||||
ta->y + ta->vis_height);
|
||||
ta->redraw_end_callback(ta->data);
|
||||
}
|
||||
if (!(ta->flags & TEXTAREA_READONLY))
|
||||
return textarea_set_caret_xy(ta, x, y);
|
||||
}
|
||||
else if (mouse & BROWSER_MOUSE_DRAG_1) {
|
||||
ta->drag_start_char = textarea_get_xy_offset(ta, x, y);
|
||||
@ -1315,9 +1328,9 @@ bool textarea_mouse_action(struct text_area *ta, browser_mouse_state mouse,
|
||||
c_start = ta->drag_start_char;
|
||||
c_end = textarea_get_xy_offset(ta, x, y);
|
||||
return textarea_select(ta, c_start, c_end);
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -1351,7 +1364,7 @@ bool textarea_drag_end(struct text_area *ta, browser_mouse_state mouse,
|
||||
bool textarea_select(struct text_area *ta, int c_start, int c_end)
|
||||
{
|
||||
int swap = -1;
|
||||
|
||||
|
||||
/* if start is after end they get swapped, start won't and end will
|
||||
be selected this way */
|
||||
if (c_start > c_end) {
|
||||
@ -1359,14 +1372,9 @@ bool textarea_select(struct text_area *ta, int c_start, int c_end)
|
||||
c_start = c_end;
|
||||
c_end = swap;
|
||||
}
|
||||
|
||||
|
||||
ta->selection_start = c_start;
|
||||
ta->selection_end = c_end;
|
||||
|
||||
ta->redraw_start_callback(ta->data);
|
||||
textarea_redraw(ta, ta->x, ta->y, ta->x + ta->vis_width,
|
||||
ta->y + ta->vis_height);
|
||||
ta->redraw_end_callback(ta->data);
|
||||
|
||||
if (!(ta->flags & TEXTAREA_READONLY)) {
|
||||
if (swap == -1)
|
||||
@ -1374,7 +1382,10 @@ bool textarea_select(struct text_area *ta, int c_start, int c_end)
|
||||
else
|
||||
return textarea_set_caret(ta, c_start);
|
||||
}
|
||||
|
||||
|
||||
ta->redraw_request(ta->data, ta->x, ta->y, ta->x + ta->vis_width,
|
||||
ta->y + ta->vis_height);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -1393,7 +1404,7 @@ void textarea_normalise_text(struct text_area *ta,
|
||||
{
|
||||
bool multi = (ta->flags & TEXTAREA_MULTILINE) ? true:false;
|
||||
unsigned int index;
|
||||
|
||||
|
||||
/* Remove CR characters. If it's a CRLF pair delete it ot replace it
|
||||
* with LF otherwise.
|
||||
*/
|
||||
@ -1416,7 +1427,7 @@ void textarea_normalise_text(struct text_area *ta,
|
||||
if (!multi && (ta->text[b_start + index] == '\n'))
|
||||
ta->text[b_start + index] = ' ';
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
@ -35,13 +35,12 @@
|
||||
|
||||
struct text_area;
|
||||
|
||||
typedef void(*textarea_start_redraw_callback)(void *data);
|
||||
typedef void(*textarea_end_redraw_callback)(void *data);
|
||||
typedef void(*textarea_redraw_request_callback)(void *data, int x, int y,
|
||||
int width, int height);
|
||||
|
||||
struct text_area *textarea_create(int x, int y, int width, int height,
|
||||
unsigned int flags, const plot_font_style_t *style,
|
||||
textarea_start_redraw_callback redraw_start_callback,
|
||||
textarea_end_redraw_callback redraw_end_callback, void *data);
|
||||
textarea_redraw_request_callback redraw_request, void *data);
|
||||
void textarea_set_position(struct text_area *ta, int x, int y);
|
||||
void textarea_destroy(struct text_area *ta);
|
||||
bool textarea_set_text(struct text_area *ta, const char *text);
|
||||
|
||||
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Reference in New Issue
Block a user