/**
* Reverse lookup the dependencies of all parents over a given child.
* @param tree list to store all parents in (is not cleared)
* @param child the child to search the parents' dependencies for
*/
void ClientNetworkContentSocketHandler::ReverseLookupTreeDependency(ConstContentVector &tree, const ContentInfo *child) const
{
*tree.Append() = child;
/* First find all direct parents */
for (ConstContentIterator iter = tree.Begin(); iter != tree.End(); iter++) {
ConstContentVector parents;
this->ReverseLookupDependency(parents, *iter);
for (ConstContentIterator piter = parents.Begin(); piter != parents.End(); piter++) {
tree.Include(*piter);
}
}
}
/**
* Reverse lookup the dependencies of all parents over a given child.
* @param tree list to store all parents in (is not cleared)
* @param child the child to search the parents' dependencies for
*/
void ClientNetworkContentSocketHandler::ReverseLookupTreeDependency(ConstContentVector &tree, const ContentInfo *child) const
{
*tree.Append() = child;
/* First find all direct parents. We can't use the "normal" iterator as
* we are including stuff into the vector and as such the vector's data
* store can be reallocated (and thus move), which means out iterating
* pointer gets invalid. So fall back to the indices. */
for (uint i = 0; i < tree.Length(); i++) {
ConstContentVector parents;
this->ReverseLookupDependency(parents, tree[i]);
for (ConstContentIterator piter = parents.Begin(); piter != parents.End(); piter++) {
tree.Include(*piter);
}
}
}
/**
* Check the dependencies (recursively) of this content info
* @param ci the content info to check the dependencies of
*/
void ClientNetworkContentSocketHandler::CheckDependencyState(ContentInfo *ci)
{
if (ci->IsSelected() || ci->state == ContentInfo::ALREADY_HERE) {
/* Selection is easy; just walk all children and set the
* autoselected state. That way we can see what we automatically
* selected and thus can unselect when a dependency is removed. */
for (uint i = 0; i < ci->dependency_count; i++) {
ContentInfo *c = this->GetContent(ci->dependencies[i]);
if (c == NULL) {
this->DownloadContentInfo(ci->dependencies[i]);
} else if (c->state == ContentInfo::UNSELECTED) {
c->state = ContentInfo::AUTOSELECTED;
this->CheckDependencyState(c);
}
}
return;
}
if (ci->state != ContentInfo::UNSELECTED) return;
/* For unselection we need to find the parents of us. We need to
* unselect them. After that we unselect all children that we
* depend on and are not used as dependency for us, but only when
* we automatically selected them. */
ConstContentVector parents;
this->ReverseLookupDependency(parents, ci);
for (ConstContentIterator iter = parents.Begin(); iter != parents.End(); iter++) {
const ContentInfo *c = *iter;
if (!c->IsSelected()) continue;
this->Unselect(c->id);
}
for (uint i = 0; i < ci->dependency_count; i++) {
const ContentInfo *c = this->GetContent(ci->dependencies[i]);
if (c == NULL) {
DownloadContentInfo(ci->dependencies[i]);
continue;
}
if (c->state != ContentInfo::AUTOSELECTED) continue;
/* Only unselect when WE are the only parent. */
parents.Clear();
this->ReverseLookupDependency(parents, c);
/* First check whether anything depends on us */
int sel_count = 0;
bool force_selection = false;
for (ConstContentIterator iter = parents.Begin(); iter != parents.End(); iter++) {
if ((*iter)->IsSelected()) sel_count++;
if ((*iter)->state == ContentInfo::SELECTED) force_selection = true;
}
if (sel_count == 0) {
/* Nothing depends on us */
this->Unselect(c->id);
continue;
}
/* Something manually selected depends directly on us */
if (force_selection) continue;
/* "Flood" search to find all items in the dependency graph*/
parents.Clear();
this->ReverseLookupTreeDependency(parents, c);
/* Is there anything that is "force" selected?, if so... we're done. */
for (ConstContentIterator iter = parents.Begin(); iter != parents.End(); iter++) {
if ((*iter)->state != ContentInfo::SELECTED) continue;
force_selection = true;
break;
}
/* So something depended directly on us */
if (force_selection) continue;
/* Nothing depends on us, mark the whole graph as unselected.
* After that's done run over them once again to test their children
* to unselect. Don't do it immediatelly because it'll do exactly what
* we're doing now. */
for (ConstContentIterator iter = parents.Begin(); iter != parents.End(); iter++) {
const ContentInfo *c = *iter;
if (c->state == ContentInfo::AUTOSELECTED) this->Unselect(c->id);
}
for (ConstContentIterator iter = parents.Begin(); iter != parents.End(); iter++) {
this->CheckDependencyState(this->GetContent((*iter)->id));
}
}
}
/**
* Helper function to draw the details part of this window.
* @param r the rectangle to stay within while drawing
*/
void DrawDetails(const Rect &r) const
{
static const int DETAIL_LEFT = 5; ///< Number of pixels at the left
static const int DETAIL_RIGHT = 5; ///< Number of pixels at the right
static const int DETAIL_TOP = 5; ///< Number of pixels at the top
/* Height for the title banner */
int DETAIL_TITLE_HEIGHT = 5 * FONT_HEIGHT_NORMAL;
/* Create the nice grayish rectangle at the details top */
GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.top + DETAIL_TITLE_HEIGHT, PC_DARK_BLUE);
DrawString(r.left + WD_INSET_LEFT, r.right - WD_INSET_RIGHT, r.top + FONT_HEIGHT_NORMAL + WD_INSET_TOP, STR_CONTENT_DETAIL_TITLE, TC_FROMSTRING, SA_HOR_CENTER);
/* Draw the total download size */
SetDParam(0, this->filesize_sum);
DrawString(r.left + DETAIL_LEFT, r.right - DETAIL_RIGHT, r.bottom - FONT_HEIGHT_NORMAL - WD_PAR_VSEP_NORMAL, STR_CONTENT_TOTAL_DOWNLOAD_SIZE);
if (this->selected == NULL) return;
/* And fill the rest of the details when there's information to place there */
DrawStringMultiLine(r.left + WD_INSET_LEFT, r.right - WD_INSET_RIGHT, r.top + DETAIL_TITLE_HEIGHT / 2, r.top + DETAIL_TITLE_HEIGHT, STR_CONTENT_DETAIL_SUBTITLE_UNSELECTED + this->selected->state, TC_FROMSTRING, SA_CENTER);
/* Also show the total download size, so keep some space from the bottom */
const uint max_y = r.bottom - FONT_HEIGHT_NORMAL - WD_PAR_VSEP_WIDE;
int y = r.top + DETAIL_TITLE_HEIGHT + DETAIL_TOP;
if (this->selected->upgrade) {
SetDParam(0, STR_CONTENT_TYPE_BASE_GRAPHICS + this->selected->type - CONTENT_TYPE_BASE_GRAPHICS);
y = DrawStringMultiLine(r.left + DETAIL_LEFT, r.right - DETAIL_RIGHT, y, max_y, STR_CONTENT_DETAIL_UPDATE);
y += WD_PAR_VSEP_WIDE;
}
SetDParamStr(0, this->selected->name);
y = DrawStringMultiLine(r.left + DETAIL_LEFT, r.right - DETAIL_RIGHT, y, max_y, STR_CONTENT_DETAIL_NAME);
if (!StrEmpty(this->selected->version)) {
SetDParamStr(0, this->selected->version);
y = DrawStringMultiLine(r.left + DETAIL_LEFT, r.right - DETAIL_RIGHT, y, max_y, STR_CONTENT_DETAIL_VERSION);
}
if (!StrEmpty(this->selected->description)) {
SetDParamStr(0, this->selected->description);
y = DrawStringMultiLine(r.left + DETAIL_LEFT, r.right - DETAIL_RIGHT, y, max_y, STR_CONTENT_DETAIL_DESCRIPTION);
}
if (!StrEmpty(this->selected->url)) {
SetDParamStr(0, this->selected->url);
y = DrawStringMultiLine(r.left + DETAIL_LEFT, r.right - DETAIL_RIGHT, y, max_y, STR_CONTENT_DETAIL_URL);
}
SetDParam(0, STR_CONTENT_TYPE_BASE_GRAPHICS + this->selected->type - CONTENT_TYPE_BASE_GRAPHICS);
y = DrawStringMultiLine(r.left + DETAIL_LEFT, r.right - DETAIL_RIGHT, y, max_y, STR_CONTENT_DETAIL_TYPE);
y += WD_PAR_VSEP_WIDE;
SetDParam(0, this->selected->filesize);
y = DrawStringMultiLine(r.left + DETAIL_LEFT, r.right - DETAIL_RIGHT, y, max_y, STR_CONTENT_DETAIL_FILESIZE);
if (this->selected->dependency_count != 0) {
/* List dependencies */
char buf[DRAW_STRING_BUFFER] = "";
char *p = buf;
for (uint i = 0; i < this->selected->dependency_count; i++) {
ContentID cid = this->selected->dependencies[i];
/* Try to find the dependency */
ConstContentIterator iter = _network_content_client.Begin();
for (; iter != _network_content_client.End(); iter++) {
const ContentInfo *ci = *iter;
if (ci->id != cid) continue;
p += seprintf(p, lastof(buf), p == buf ? "%s" : ", %s", (*iter)->name);
break;
}
}
SetDParamStr(0, buf);
y = DrawStringMultiLine(r.left + DETAIL_LEFT, r.right - DETAIL_RIGHT, y, max_y, STR_CONTENT_DETAIL_DEPENDENCIES);
}
if (this->selected->tag_count != 0) {
/* List all tags */
char buf[DRAW_STRING_BUFFER] = "";
char *p = buf;
for (uint i = 0; i < this->selected->tag_count; i++) {
p += seprintf(p, lastof(buf), i == 0 ? "%s" : ", %s", this->selected->tags[i]);
}
SetDParamStr(0, buf);
y = DrawStringMultiLine(r.left + DETAIL_LEFT, r.right - DETAIL_RIGHT, y, max_y, STR_CONTENT_DETAIL_TAGS);
}
if (this->selected->IsSelected()) {
/* When selected show all manually selected content that depends on this */
ConstContentVector tree;
_network_content_client.ReverseLookupTreeDependency(tree, this->selected);
char buf[DRAW_STRING_BUFFER] = "";
char *p = buf;
for (ConstContentIterator iter = tree.Begin(); iter != tree.End(); iter++) {
const ContentInfo *ci = *iter;
if (ci == this->selected || ci->state != ContentInfo::SELECTED) continue;
p += seprintf(p, lastof(buf), buf == p ? "%s" : ", %s", ci->name);
}
if (p != buf) {
SetDParamStr(0, buf);
y = DrawStringMultiLine(r.left + DETAIL_LEFT, r.right - DETAIL_RIGHT, y, max_y, STR_CONTENT_DETAIL_SELECTED_BECAUSE_OF);
}
}
}