From e23e8b5112e24d9c2998e71f96f5ec2c1dc0971e Mon Sep 17 00:00:00 2001 From: Michael Drake Date: Sun, 31 Aug 2014 16:26:50 +0100 Subject: Avoid forward declaration of box_contains_point. --- render/box.c | 245 +++++++++++++++++++++++++++++------------------------------ 1 file changed, 122 insertions(+), 123 deletions(-) (limited to 'render') diff --git a/render/box.c b/render/box.c index 91f866d2f..e1d08480a 100644 --- a/render/box.c +++ b/render/box.c @@ -42,7 +42,6 @@ #include "utils/talloc.h" #include "utils/utils.h" -static bool box_contains_point(struct box *box, int x, int y, bool *physically); static bool box_nearer_text_box(struct box *box, int bx, int by, int x, int y, int dir, struct box **nearest, int *tx, int *ty, int *nr_xd, int *nr_yd); @@ -343,6 +342,128 @@ void box_bounds(struct box *box, struct rect *r) } +/** + * Determine if a point lies within a box. + * + * \param box box to consider + * \param x coordinate relative to box + * \param y coordinate relative to box + * \param physically if function returning true, physically is set true if + * point is within the box's physical dimensions and false + * if the point is not within the box's physical dimensions + * but is in the area defined by the box's descendants. + * if function returning false, physically is undefined. + * \return true if the point is within the box or a descendant box + * + * This is a helper function for box_at_point(). + */ + +static bool box_contains_point(struct box *box, int x, int y, bool *physically) +{ + css_computed_clip_rect css_rect; + + if (box->style != NULL && + css_computed_position(box->style) == + CSS_POSITION_ABSOLUTE && + css_computed_clip(box->style, &css_rect) == + CSS_CLIP_RECT) { + /* We have an absolutly positioned box with a clip rect */ + struct rect r = { + .x0 = box->border[LEFT].width, + .y0 = box->border[TOP].width, + .x1 = box->padding[LEFT] + box->width + + box->border[RIGHT].width + + box->padding[RIGHT], + .y1 = box->padding[TOP] + box->height + + box->border[BOTTOM].width + + box->padding[BOTTOM] + }; + if (x >= r.x0 && x < r.x1 && y >= r.y0 && y < r.y1) + *physically = true; + else + *physically = false; + + /* Adjust rect to css clip region */ + if (css_rect.left_auto == false) { + r.x0 += FIXTOINT(nscss_len2px( + css_rect.left, css_rect.lunit, + box->style)); + } + if (css_rect.top_auto == false) { + r.y0 += FIXTOINT(nscss_len2px( + css_rect.top, css_rect.tunit, + box->style)); + } + if (css_rect.right_auto == false) { + r.x1 = box->border[LEFT].width + + FIXTOINT(nscss_len2px( + css_rect.right, + css_rect.runit, + box->style)); + } + if (css_rect.bottom_auto == false) { + r.y1 = box->border[TOP].width + + FIXTOINT(nscss_len2px( + css_rect.bottom, + css_rect.bunit, + box->style)); + } + + /* Test if point is in clipped box */ + if (x >= r.x0 && x < r.x1 && y >= r.y0 && y < r.y1) { + /* inside clip area */ + return true; + } + + /* Not inside clip area */ + return false; + } + if (x >= -box->border[LEFT].width && + x < box->padding[LEFT] + box->width + + box->padding[RIGHT] + box->border[RIGHT].width && + y >= -box->border[TOP].width && + y < box->padding[TOP] + box->height + + box->padding[BOTTOM] + box->border[BOTTOM].width) { + *physically = true; + return true; + } + if (box->list_marker && box->list_marker->x - box->x <= x + + box->list_marker->border[LEFT].width && + x < box->list_marker->x - box->x + + box->list_marker->padding[LEFT] + + box->list_marker->width + + box->list_marker->border[RIGHT].width + + box->list_marker->padding[RIGHT] && + box->list_marker->y - box->y <= y + + box->list_marker->border[TOP].width && + y < box->list_marker->y - box->y + + box->list_marker->padding[TOP] + + box->list_marker->height + + box->list_marker->border[BOTTOM].width + + box->list_marker->padding[BOTTOM]) { + *physically = true; + return true; + } + if ((box->style && css_computed_overflow_x(box->style) == + CSS_OVERFLOW_VISIBLE) || !box->style) { + if (box->descendant_x0 <= x && + x < box->descendant_x1) { + *physically = false; + return true; + } + } + if ((box->style && css_computed_overflow_y(box->style) == + CSS_OVERFLOW_VISIBLE) || !box->style) { + if (box->descendant_y0 <= y && + y < box->descendant_y1) { + *physically = false; + return true; + } + } + return false; +} + + /** Direction to move in a box-tree walk */ enum box_walk_dir { BOX_WALK_CHILDREN, @@ -580,128 +701,6 @@ struct box *box_at_point(struct box *box, const int x, const int y, } -/** - * Determine if a point lies within a box. - * - * \param box box to consider - * \param x coordinate relative to box - * \param y coordinate relative to box - * \param physically if function returning true, physically is set true if - * point is within the box's physical dimensions and false - * if the point is not within the box's physical dimensions - * but is in the area defined by the box's descendants. - * if function returning false, physically is undefined. - * \return true if the point is within the box or a descendant box - * - * This is a helper function for box_at_point(). - */ - -bool box_contains_point(struct box *box, int x, int y, bool *physically) -{ - css_computed_clip_rect css_rect; - - if (box->style != NULL && - css_computed_position(box->style) == - CSS_POSITION_ABSOLUTE && - css_computed_clip(box->style, &css_rect) == - CSS_CLIP_RECT) { - /* We have an absolutly positioned box with a clip rect */ - struct rect r = { - .x0 = box->border[LEFT].width, - .y0 = box->border[TOP].width, - .x1 = box->padding[LEFT] + box->width + - box->border[RIGHT].width + - box->padding[RIGHT], - .y1 = box->padding[TOP] + box->height + - box->border[BOTTOM].width + - box->padding[BOTTOM] - }; - if (x >= r.x0 && x < r.x1 && y >= r.y0 && y < r.y1) - *physically = true; - else - *physically = false; - - /* Adjust rect to css clip region */ - if (css_rect.left_auto == false) { - r.x0 += FIXTOINT(nscss_len2px( - css_rect.left, css_rect.lunit, - box->style)); - } - if (css_rect.top_auto == false) { - r.y0 += FIXTOINT(nscss_len2px( - css_rect.top, css_rect.tunit, - box->style)); - } - if (css_rect.right_auto == false) { - r.x1 = box->border[LEFT].width + - FIXTOINT(nscss_len2px( - css_rect.right, - css_rect.runit, - box->style)); - } - if (css_rect.bottom_auto == false) { - r.y1 = box->border[TOP].width + - FIXTOINT(nscss_len2px( - css_rect.bottom, - css_rect.bunit, - box->style)); - } - - /* Test if point is in clipped box */ - if (x >= r.x0 && x < r.x1 && y >= r.y0 && y < r.y1) { - /* inside clip area */ - return true; - } - - /* Not inside clip area */ - return false; - } - if (x >= -box->border[LEFT].width && - x < box->padding[LEFT] + box->width + - box->padding[RIGHT] + box->border[RIGHT].width && - y >= -box->border[TOP].width && - y < box->padding[TOP] + box->height + - box->padding[BOTTOM] + box->border[BOTTOM].width) { - *physically = true; - return true; - } - if (box->list_marker && box->list_marker->x - box->x <= x + - box->list_marker->border[LEFT].width && - x < box->list_marker->x - box->x + - box->list_marker->padding[LEFT] + - box->list_marker->width + - box->list_marker->border[RIGHT].width + - box->list_marker->padding[RIGHT] && - box->list_marker->y - box->y <= y + - box->list_marker->border[TOP].width && - y < box->list_marker->y - box->y + - box->list_marker->padding[TOP] + - box->list_marker->height + - box->list_marker->border[BOTTOM].width + - box->list_marker->padding[BOTTOM]) { - *physically = true; - return true; - } - if ((box->style && css_computed_overflow_x(box->style) == - CSS_OVERFLOW_VISIBLE) || !box->style) { - if (box->descendant_x0 <= x && - x < box->descendant_x1) { - *physically = false; - return true; - } - } - if ((box->style && css_computed_overflow_y(box->style) == - CSS_OVERFLOW_VISIBLE) || !box->style) { - if (box->descendant_y0 <= y && - y < box->descendant_y1) { - *physically = false; - return true; - } - } - return false; -} - - /** * Check whether box is nearer mouse coordinates than current nearest box * -- cgit v1.2.3