mirror of
https://github.com/netsurf-browser/netsurf
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Avoid forward declaration of box_contains_point.
This commit is contained in:
Michael Drake
parent
181cdfab06
commit
e23e8b5112
245
render/box.c
245
render/box.c
@ -42,7 +42,6 @@
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#include "utils/talloc.h"
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#include "utils/utils.h"
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static bool box_contains_point(struct box *box, int x, int y, bool *physically);
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static bool box_nearer_text_box(struct box *box, int bx, int by,
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int x, int y, int dir, struct box **nearest, int *tx, int *ty,
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int *nr_xd, int *nr_yd);
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@ -343,6 +342,128 @@ void box_bounds(struct box *box, struct rect *r)
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}
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/**
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* Determine if a point lies within a box.
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*
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* \param box box to consider
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* \param x coordinate relative to box
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* \param y coordinate relative to box
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* \param physically if function returning true, physically is set true if
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* point is within the box's physical dimensions and false
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* if the point is not within the box's physical dimensions
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* but is in the area defined by the box's descendants.
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* if function returning false, physically is undefined.
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* \return true if the point is within the box or a descendant box
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*
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* This is a helper function for box_at_point().
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*/
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static bool box_contains_point(struct box *box, int x, int y, bool *physically)
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{
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css_computed_clip_rect css_rect;
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if (box->style != NULL &&
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css_computed_position(box->style) ==
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CSS_POSITION_ABSOLUTE &&
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css_computed_clip(box->style, &css_rect) ==
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CSS_CLIP_RECT) {
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/* We have an absolutly positioned box with a clip rect */
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struct rect r = {
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.x0 = box->border[LEFT].width,
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.y0 = box->border[TOP].width,
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.x1 = box->padding[LEFT] + box->width +
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box->border[RIGHT].width +
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box->padding[RIGHT],
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.y1 = box->padding[TOP] + box->height +
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box->border[BOTTOM].width +
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box->padding[BOTTOM]
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};
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if (x >= r.x0 && x < r.x1 && y >= r.y0 && y < r.y1)
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*physically = true;
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else
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*physically = false;
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/* Adjust rect to css clip region */
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if (css_rect.left_auto == false) {
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r.x0 += FIXTOINT(nscss_len2px(
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css_rect.left, css_rect.lunit,
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box->style));
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}
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if (css_rect.top_auto == false) {
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r.y0 += FIXTOINT(nscss_len2px(
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css_rect.top, css_rect.tunit,
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box->style));
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}
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if (css_rect.right_auto == false) {
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r.x1 = box->border[LEFT].width +
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FIXTOINT(nscss_len2px(
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css_rect.right,
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css_rect.runit,
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box->style));
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}
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if (css_rect.bottom_auto == false) {
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r.y1 = box->border[TOP].width +
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FIXTOINT(nscss_len2px(
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css_rect.bottom,
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css_rect.bunit,
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box->style));
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}
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/* Test if point is in clipped box */
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if (x >= r.x0 && x < r.x1 && y >= r.y0 && y < r.y1) {
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/* inside clip area */
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return true;
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}
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/* Not inside clip area */
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return false;
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}
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if (x >= -box->border[LEFT].width &&
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x < box->padding[LEFT] + box->width +
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box->padding[RIGHT] + box->border[RIGHT].width &&
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y >= -box->border[TOP].width &&
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y < box->padding[TOP] + box->height +
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box->padding[BOTTOM] + box->border[BOTTOM].width) {
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*physically = true;
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return true;
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}
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if (box->list_marker && box->list_marker->x - box->x <= x +
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box->list_marker->border[LEFT].width &&
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x < box->list_marker->x - box->x +
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box->list_marker->padding[LEFT] +
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box->list_marker->width +
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box->list_marker->border[RIGHT].width +
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box->list_marker->padding[RIGHT] &&
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box->list_marker->y - box->y <= y +
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box->list_marker->border[TOP].width &&
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y < box->list_marker->y - box->y +
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box->list_marker->padding[TOP] +
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box->list_marker->height +
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box->list_marker->border[BOTTOM].width +
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box->list_marker->padding[BOTTOM]) {
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*physically = true;
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return true;
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}
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if ((box->style && css_computed_overflow_x(box->style) ==
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CSS_OVERFLOW_VISIBLE) || !box->style) {
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if (box->descendant_x0 <= x &&
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x < box->descendant_x1) {
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*physically = false;
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return true;
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}
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}
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if ((box->style && css_computed_overflow_y(box->style) ==
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CSS_OVERFLOW_VISIBLE) || !box->style) {
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if (box->descendant_y0 <= y &&
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y < box->descendant_y1) {
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*physically = false;
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return true;
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}
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}
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return false;
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}
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/** Direction to move in a box-tree walk */
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enum box_walk_dir {
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BOX_WALK_CHILDREN,
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@ -580,128 +701,6 @@ struct box *box_at_point(struct box *box, const int x, const int y,
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}
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/**
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* Determine if a point lies within a box.
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*
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* \param box box to consider
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* \param x coordinate relative to box
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* \param y coordinate relative to box
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* \param physically if function returning true, physically is set true if
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* point is within the box's physical dimensions and false
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* if the point is not within the box's physical dimensions
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* but is in the area defined by the box's descendants.
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* if function returning false, physically is undefined.
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* \return true if the point is within the box or a descendant box
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*
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* This is a helper function for box_at_point().
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*/
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bool box_contains_point(struct box *box, int x, int y, bool *physically)
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{
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css_computed_clip_rect css_rect;
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if (box->style != NULL &&
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css_computed_position(box->style) ==
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CSS_POSITION_ABSOLUTE &&
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css_computed_clip(box->style, &css_rect) ==
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CSS_CLIP_RECT) {
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/* We have an absolutly positioned box with a clip rect */
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struct rect r = {
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.x0 = box->border[LEFT].width,
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.y0 = box->border[TOP].width,
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.x1 = box->padding[LEFT] + box->width +
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box->border[RIGHT].width +
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box->padding[RIGHT],
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.y1 = box->padding[TOP] + box->height +
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box->border[BOTTOM].width +
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box->padding[BOTTOM]
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};
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if (x >= r.x0 && x < r.x1 && y >= r.y0 && y < r.y1)
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*physically = true;
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else
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*physically = false;
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/* Adjust rect to css clip region */
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if (css_rect.left_auto == false) {
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r.x0 += FIXTOINT(nscss_len2px(
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css_rect.left, css_rect.lunit,
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box->style));
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}
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if (css_rect.top_auto == false) {
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r.y0 += FIXTOINT(nscss_len2px(
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css_rect.top, css_rect.tunit,
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box->style));
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}
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if (css_rect.right_auto == false) {
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r.x1 = box->border[LEFT].width +
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FIXTOINT(nscss_len2px(
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css_rect.right,
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css_rect.runit,
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box->style));
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}
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if (css_rect.bottom_auto == false) {
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r.y1 = box->border[TOP].width +
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FIXTOINT(nscss_len2px(
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css_rect.bottom,
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css_rect.bunit,
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box->style));
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}
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/* Test if point is in clipped box */
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if (x >= r.x0 && x < r.x1 && y >= r.y0 && y < r.y1) {
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/* inside clip area */
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return true;
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}
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/* Not inside clip area */
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return false;
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}
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if (x >= -box->border[LEFT].width &&
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x < box->padding[LEFT] + box->width +
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box->padding[RIGHT] + box->border[RIGHT].width &&
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y >= -box->border[TOP].width &&
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y < box->padding[TOP] + box->height +
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box->padding[BOTTOM] + box->border[BOTTOM].width) {
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*physically = true;
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return true;
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}
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if (box->list_marker && box->list_marker->x - box->x <= x +
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box->list_marker->border[LEFT].width &&
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x < box->list_marker->x - box->x +
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box->list_marker->padding[LEFT] +
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box->list_marker->width +
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box->list_marker->border[RIGHT].width +
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box->list_marker->padding[RIGHT] &&
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box->list_marker->y - box->y <= y +
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box->list_marker->border[TOP].width &&
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y < box->list_marker->y - box->y +
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box->list_marker->padding[TOP] +
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box->list_marker->height +
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box->list_marker->border[BOTTOM].width +
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box->list_marker->padding[BOTTOM]) {
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*physically = true;
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return true;
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}
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if ((box->style && css_computed_overflow_x(box->style) ==
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CSS_OVERFLOW_VISIBLE) || !box->style) {
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if (box->descendant_x0 <= x &&
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x < box->descendant_x1) {
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*physically = false;
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return true;
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}
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}
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if ((box->style && css_computed_overflow_y(box->style) ==
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CSS_OVERFLOW_VISIBLE) || !box->style) {
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if (box->descendant_y0 <= y &&
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y < box->descendant_y1) {
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*physically = false;
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return true;
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}
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}
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return false;
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}
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/**
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* Check whether box is nearer mouse coordinates than current nearest box
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*
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