mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-24 21:16:50 +03:00
[project @ 2005-04-29 01:34:19 by rjw]
Improve table rendering. svn path=/import/netsurf/; revision=1698
This commit is contained in:
Richard Wilson
parent
0d54ba24d4
commit
683892f9db
@ -42,8 +42,9 @@ static bool html_redraw_radio(int x, int y, int width, int height,
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bool selected);
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static bool html_redraw_file(int x, int y, int width, int height,
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struct box *box, float scale, colour background_colour);
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static bool html_redraw_background(int x, int y,
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struct box *box, float scale, colour background_colour);
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static bool html_redraw_background(int x, int y, struct box *box, float scale,
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int clip_x0, int clip_y0, int clip_x1, int clip_y1,
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colour *background_colour);
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static bool html_redraw_scrollbars(struct box *box, float scale,
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int x, int y, int padding_width, int padding_height,
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colour background_colour);
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@ -235,51 +236,23 @@ bool html_redraw_box(struct box *box,
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}
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/* background colour and image */
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if (box->style && box->type != BOX_BR && (box->type != BOX_INLINE ||
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box->style != box->parent->parent->style)) {
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if ((box->style && box->type != BOX_BR && (box->type != BOX_INLINE ||
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box->style != box->parent->parent->style)) &&
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((box->style->background_color != TRANSPARENT) ||
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(box->background))) {
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/* find intersection of clip box and padding box */
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int px0 = x < x0 ? x0 : x;
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int py0 = y < y0 ? y0 : y;
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int px1 = x + padding_width < x1 ? x + padding_width : x1;
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int py1 = y + padding_height < y1 ? y + padding_height : y1;
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/* background colour */
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if (box->style->background_color != TRANSPARENT &&
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px0 < px1 && py0 < py1 &&
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/* don't redraw background if there is an
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* image covering it */
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((box->style->background_repeat !=
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CSS_BACKGROUND_REPEAT_REPEAT) ||
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(box->background == NULL) ||
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(box->background->bitmap == NULL) ||
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/*(ro_gui_current_redraw_gui == NULL) ||
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(!ro_gui_current_redraw_gui->
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option.background_images) ||*/
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(!bitmap_get_opaque(box->background->
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bitmap)))) {
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if (!plot.fill(px0, py0, px1, py1,
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box->style->background_color))
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return false;
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/* set current background color for font painting */
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current_background_color = box->style->background_color;
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}
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if ((box->background) && (px0 < px1) && (py0 < py1)) {
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/* clip to padding box for everything but the main window */
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if (box->parent) {
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if (!plot.clip(px0, py0, px1, py1))
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return false;
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} else {
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if (!plot.clip(clip_x0, clip_y0,
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clip_x1, clip_y1))
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return false;
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}
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/* plot background image */
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/* valid clipping rectangles only */
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if ((px0 < px1) && (py0 < py1)) {
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/* plot background */
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if (!html_redraw_background(x, y, box, scale,
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current_background_color))
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px0, py0, px1, py1,
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¤t_background_color))
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return false;
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/* restore previous graphics window */
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if (!plot.clip(x0, y0, x1, y1))
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return false;
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@ -375,21 +348,21 @@ bool html_redraw_box(struct box *box,
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if (highlighted) {
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unsigned endtxt_idx = end_idx;
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int startx, endx;
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if (end_idx > box->length) {
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/* adjust for trailing space, not present in box->text */
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assert(end_idx == box->length + 1);
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endtxt_idx = box->length;
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}
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if (!nsfont_width(box->style, box->text, start_idx, &startx))
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startx = 0;
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if (!nsfont_width(box->style, box->text + start_idx,
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endtxt_idx - start_idx, &endx))
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endx = 0;
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endx += startx;
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/* is there a trailing space that should be highlighted as well? */
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if (end_idx > box->length) {
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int spc_width;
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@ -397,36 +370,37 @@ bool html_redraw_box(struct box *box,
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if (nsfont_width(box->style, " ", 1, &spc_width))
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endx += spc_width;
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}
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if (scale != 1.0) {
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startx *= scale;
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endx *= scale;
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}
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if (start_idx > 0) {
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if (!plot.text(x, y + (int) (box->height * 0.75 * scale),
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box->style, box->text, start_idx,
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current_background_color,
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/*print_text_black ? 0 :*/ box->style->color))
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return false;
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}
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if (!plot.fill(x + startx, y, x + endx, y + box->height * scale,
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current_background_color ^ 0xffffff))
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return false;
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if (!plot.text(x + startx, y + (int) (box->height * 0.75 * scale),
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box->style, box->text + start_idx, endtxt_idx - start_idx,
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current_background_color ^ 0xffffff,
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current_background_color))
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return false;
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if (endtxt_idx < box->length) {
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if (!plot.text(x + endx, y + (int) (box->height * 0.75 * scale),
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box->style, box->text + endtxt_idx, box->length - endtxt_idx,
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box->style, box->text + endtxt_idx,
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box->length - endtxt_idx,
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current_background_color,
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/*print_text_black ? 0 :*/ box->style->color))
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return false;
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@ -609,7 +583,7 @@ bool html_redraw_borders(struct box *box, int x, int y,
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c_lit = html_redraw_lighter(c_lit);
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break;
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case 1:
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c_lit = html_redraw_darker(c_lit);
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c_lit = html_redraw_darker(c_lit);
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case 2:
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c_lit = html_redraw_darker(c_lit);
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}
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@ -652,14 +626,14 @@ bool html_redraw_borders(struct box *box, int x, int y,
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* \param c colour
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* \return a darker shade of c
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*/
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#define mix_colour(c0, c1) ((((c0 >> 16) + 3 * (c1 >> 16)) >> 2) << 16) | \
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(((((c0 >> 8) & 0xff) + 3 * ((c1 >> 8) & 0xff)) >> 2) << 8) | \
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((((c0 & 0xff) + 3 * (c1 & 0xff)) >> 2) << 0);
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colour html_redraw_darker(colour c)
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{
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return mix_colour(0x000000, c)
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{
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return mix_colour(0x000000, c)
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}
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@ -672,7 +646,7 @@ colour html_redraw_darker(colour c)
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colour html_redraw_lighter(colour c)
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{
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return mix_colour(0xffffff, c)
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return mix_colour(0xffffff, c)
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}
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@ -803,82 +777,140 @@ bool html_redraw_file(int x, int y, int width, int height,
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* \return true if successful, false otherwise
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*/
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bool html_redraw_background(int x, int y,
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struct box *box, float scale, colour background_colour)
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bool html_redraw_background(int x, int y, struct box *box, float scale,
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int clip_x0, int clip_y0, int clip_x1, int clip_y1,
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colour *background_colour)
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{
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bool repeat_x = false;
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bool repeat_y = false;
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bool plot_colour = true;
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bool clip_to_children = false;
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struct box *clip_box = box;
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int px0 = clip_x0, py0 = clip_y0, px1 = clip_x1, py1 = clip_y1;
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int ox = x, oy = y;
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assert(box->background);
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if (box->background->bitmap) {
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/* handle background-repeat */
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switch (box->style->background_repeat) {
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case CSS_BACKGROUND_REPEAT_REPEAT:
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repeat_x = repeat_y = true;
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break;
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case CSS_BACKGROUND_REPEAT_REPEAT_X:
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repeat_x = true;
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break;
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case CSS_BACKGROUND_REPEAT_REPEAT_Y:
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repeat_y = true;
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break;
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case CSS_BACKGROUND_REPEAT_NO_REPEAT:
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break;
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default:
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break;
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}
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/* only bitmaps handled currently */
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if (!box->background->bitmap)
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return true;
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/* handle background-position */
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switch (box->style->background_position.horz.pos) {
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case CSS_BACKGROUND_POSITION_PERCENT:
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x += (box->padding[LEFT] + box->width +
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box->padding[RIGHT] -
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box->background->width) * scale *
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box->style->background_position.horz.
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value.percent / 100;
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break;
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case CSS_BACKGROUND_POSITION_LENGTH:
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x += (int) (css_len2px(&box->style->background_position.
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horz.value.length, box->style) * scale);
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break;
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default:
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break;
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}
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/* exit if background images aren't wanted */
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/*if (ro_gui_current_redraw_gui)
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if (!ro_gui_current_redraw_gui->option.background_images)
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return true;
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else if (!option_background_images)
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return true;*/
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switch (box->style->background_position.vert.pos) {
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case CSS_BACKGROUND_POSITION_PERCENT:
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y += (box->padding[TOP] + box->height +
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box->padding[BOTTOM] -
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box->background->height) * scale *
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box->style->background_position.vert.
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value.percent / 100;
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break;
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case CSS_BACKGROUND_POSITION_LENGTH:
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y += (int) (css_len2px(&box->style->background_position.
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vert.value.length, box->style) * scale);
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break;
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default:
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break;
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}
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/* handle background-repeat */
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switch (box->style->background_repeat) {
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case CSS_BACKGROUND_REPEAT_REPEAT:
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repeat_x = repeat_y = true;
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break;
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case CSS_BACKGROUND_REPEAT_REPEAT_X:
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repeat_x = true;
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break;
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case CSS_BACKGROUND_REPEAT_REPEAT_Y:
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repeat_y = true;
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break;
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case CSS_BACKGROUND_REPEAT_NO_REPEAT:
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break;
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default:
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break;
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/* optimisation: only plot the colour if we're filled and opaque */
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if ((repeat_x) && (repeat_y))
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plot_colour = !bitmap_get_opaque(box->background->bitmap);
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}
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/* handle background-position */
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switch (box->style->background_position.horz.pos) {
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case CSS_BACKGROUND_POSITION_PERCENT:
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x += (box->padding[LEFT] + box->width +
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box->padding[RIGHT] -
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box->background->width) * scale *
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box->style->background_position.horz.
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value.percent / 100;
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break;
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case CSS_BACKGROUND_POSITION_LENGTH:
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x += (int) (css_len2px(&box->style->background_position.
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horz.value.length, box->style) * scale);
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break;
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default:
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break;
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/* special case for table rows as their background needs to be clipped to
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* all the cells */
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if (box->type == BOX_TABLE_ROW) {
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struct box *parent = box->parent;
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if ((parent) && (parent->type == BOX_TABLE_ROW_GROUP))
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parent = parent->parent;
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if ((parent) && (parent->type == BOX_TABLE)) {
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assert(parent->style);
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clip_to_children = (parent->style->border_spacing.horz.value > 0) ||
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(parent->style->border_spacing.vert.value > 0);
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if (clip_to_children)
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clip_box = box->children;
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}
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}
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switch (box->style->background_position.vert.pos) {
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case CSS_BACKGROUND_POSITION_PERCENT:
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y += (box->padding[TOP] + box->height +
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box->padding[BOTTOM] -
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box->background->height) * scale *
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box->style->background_position.vert.
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value.percent / 100;
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break;
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case CSS_BACKGROUND_POSITION_LENGTH:
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y += (int) (css_len2px(&box->style->background_position.
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vert.value.length, box->style) * scale);
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break;
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default:
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break;
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}
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do {
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if (clip_to_children) {
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assert(clip_box->type == BOX_TABLE_CELL);
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/* update clip_* to the child cell */
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clip_x0 = ox + (clip_box->x * scale);
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clip_y0 = oy + (clip_box->y * scale);
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clip_x1 = clip_x0 + clip_box->padding[LEFT] +
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clip_box->width + clip_box->padding[RIGHT];
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clip_y1 = clip_y0 + clip_box->padding[TOP] +
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clip_box->height + clip_box->padding[BOTTOM];
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if (clip_x0 < px0) clip_x0 = px0;
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if (clip_y0 < py0) clip_y0 = py0;
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if (clip_x1 > px1) clip_x1 = px1;
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if (clip_y1 > py1) clip_y1 = py1;
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if ((clip_x0 >= clip_x1) || (clip_y0 >= clip_y1) ||
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(clip_box->style->background_color != TRANSPARENT) ||
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((clip_box->background->bitmap) &&
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(bitmap_get_opaque(clip_box->background->bitmap)))) {
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if (!(clip_box = clip_box->next))
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return true;
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continue;
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}
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}
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/* and plot the image */
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return plot.bitmap_tile(x, y,
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ceilf(box->background->width * scale),
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ceilf(box->background->height * scale),
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box->background->bitmap,
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background_colour,
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repeat_x, repeat_y);
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/* plot the background colour */
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if (box->style->background_color != TRANSPARENT) {
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*background_colour = box->style->background_color;
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if (plot_colour)
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if (!plot.fill(clip_x0, clip_y0, clip_x1, clip_y1,
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*background_colour))
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return false;
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}
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/* and plot the image */
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if (box->background->bitmap) {
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if (!plot.clip(clip_x0, clip_y0, clip_x1, clip_y1))
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return false;
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if (!plot.bitmap_tile(x, y,
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ceilf(box->background->width * scale),
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ceilf(box->background->height * scale),
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box->background->bitmap,
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*background_colour,
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repeat_x, repeat_y))
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return false;
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}
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/* advance and loop for child clipping */
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clip_box = clip_box->next;
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} while (clip_box && clip_to_children);
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return true;
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}
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@ -1043,18 +1075,18 @@ bool box_hscrollbar_present(const struct box * const box)
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/**
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* Calculate scrollbar dimensions and positions for a box.
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*
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* \param box scrolling box
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* \param box scrolling box
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* \param padding_width scaled width of padding box
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* \param padding_height scaled height of padding box
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* \param w scaled scrollbar width
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* \param vscroll updated to vertical scrollbar present
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* \param hscroll updated to horizontal scrollbar present
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* \param well_height updated to vertical well height
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* \param bar_top updated to top position of vertical scrollbar
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* \param bar_height updated to height of vertical scrollbar
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* \param well_width updated to horizontal well width
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* \param bar_left updated to left position of horizontal scrollbar
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* \param bar_width updated to width of horizontal scrollbar
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* \param w scaled scrollbar width
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* \param vscroll updated to vertical scrollbar present
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* \param hscroll updated to horizontal scrollbar present
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* \param well_height updated to vertical well height
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* \param bar_top updated to top position of vertical scrollbar
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* \param bar_height updated to height of vertical scrollbar
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* \param well_width updated to horizontal well width
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* \param bar_left updated to left position of horizontal scrollbar
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* \param bar_width updated to width of horizontal scrollbar
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*/
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void box_scrollbar_dimensions(const struct box * const box,
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