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(svn r14517) -Feature: arrow key scrolling in the server list (Roujin)

This commit is contained in:
rubidium 2008-10-22 20:22:18 +00:00
parent 219abb5235
commit f43dc3e758
1 changed files with 92 additions and 2 deletions
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94
src/network/network_gui.cpp
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@ -114,6 +114,8 @@ enum NetworkGameWindowWidgets {
};
typedef GUIList<NetworkGameList*> GUIGameServerList;
typedef uint16 ServerListPosition;
static const ServerListPosition SLP_INVALID = 0xFFFF;
class NetworkGameWindow : public QueryStringBaseWindow {
protected:
@ -126,6 +128,7 @@ protected:
byte field; ///< selected text-field
NetworkGameList *server; ///< selected server
GUIGameServerList servers; ///< list with game servers.
ServerListPosition list_pos; ///< position of the selected server
/**
* (Re)build the network game list as its amount has changed because
@ -216,12 +219,16 @@ protected:
/* After sorting ngl->sort_list contains the sorted items. Put these back
* into the original list. Basically nothing has changed, we are only
* shuffling the ->next pointers */
* shuffling the ->next pointers. While iterating, look for the
* currently selected server and set list_pos to its position */
this->list_pos = SLP_INVALID;
_network_game_list = this->servers[0];
NetworkGameList *item = _network_game_list;
if (item == this->server) this->list_pos = 0;
for (uint i = 1; i != this->servers.Length(); i++) {
item->next = this->servers[i];
item = item->next;
if (item == this->server) this->list_pos = i;
}
item->next = NULL;
}
@ -283,6 +290,25 @@ protected:
}
}
/**
* Scroll the list up or down to the currently selected server.
* If the server is below the currently displayed servers, it will
* scroll down an amount so that the server appears at the bottom.
* If the server is above the currently displayed servers, it will
* scroll up so that the server appears at the top.
*/
void ScrollToSelectedServer()
{
if (this->list_pos == SLP_INVALID) return; // no server selected
if (this->list_pos < this->vscroll.pos) {
/* scroll up to the server */
this->vscroll.pos = this->list_pos;
} else if (this->list_pos >= this->vscroll.pos + this->vscroll.cap) {
/* scroll down so that the server is at the bottom */
this->vscroll.pos = this->list_pos - this->vscroll.cap + 1;
}
}
public:
NetworkGameWindow(const WindowDesc *desc) : QueryStringBaseWindow(NETWORK_NAME_LENGTH, desc)
{
@ -297,6 +323,7 @@ public:
this->field = NGWW_CLIENT;
this->server = NULL;
this->list_pos = SLP_INVALID;
this->servers.SetListing(this->last_sorting);
this->servers.SetSortFuncs(this->sorter_funcs);
@ -466,10 +493,13 @@ public:
case NGWW_INFO: // Connectivity (green dot)
if (this->servers.SortType() == widget - NGWW_NAME) {
this->servers.ToggleSortOrder();
if (this->list_pos != SLP_INVALID) this->list_pos = this->servers.Length() - this->list_pos - 1;
} else {
this->servers.SetSortType(widget - NGWW_NAME);
this->servers.ForceResort();
this->SortNetworkGameList();
}
this->ScrollToSelectedServer();
this->SetDirty();
break;
@ -480,6 +510,7 @@ public:
id_v += this->vscroll.pos;
this->server = (id_v < this->servers.Length()) ? this->servers[id_v] : NULL;
this->list_pos = (server == NULL) ? SLP_INVALID : id_v;
this->SetDirty();
} break;
@ -487,6 +518,15 @@ public:
NetworkGameList *last_joined = NetworkGameListAddItem(inet_addr(_settings_client.network.last_host), _settings_client.network.last_port);
if (last_joined != NULL) {
this->server = last_joined;
/* search the position of the newly selected server */
for (uint i = 0; i < this->servers.Length(); i++) {
if (this->servers[i] == this->server) {
this->list_pos = i;
break;
}
}
this->ScrollToSelectedServer();
this->SetDirty();
}
} break;
@ -559,7 +599,10 @@ public:
virtual void OnInvalidateData(int data)
{
if (data != 0) this->server = NULL;
if (data != 0) {
this->server = NULL;
this->list_pos = SLP_INVALID;
}
this->servers.ForceRebuild();
this->SetDirty();
}
@ -567,12 +610,59 @@ public:
virtual EventState OnKeyPress(uint16 key, uint16 keycode)
{
EventState state = ES_NOT_HANDLED;
/* handle up, down, pageup, pagedown, home and end */
if (keycode == WKC_UP || keycode == WKC_DOWN || keycode == WKC_PAGEUP || keycode == WKC_PAGEDOWN || keycode == WKC_HOME || keycode == WKC_END) {
if (this->servers.Length() == 0) return ES_HANDLED;
switch (keycode) {
case WKC_UP:
/* scroll up by one */
if (this->server == NULL) return ES_HANDLED;
if (this->list_pos > 0) this->list_pos--;
break;
case WKC_DOWN:
/* scroll down by one */
if (this->server == NULL) return ES_HANDLED;
if (this->list_pos < this->servers.Length() - 1) this->list_pos++;
break;
case WKC_PAGEUP:
/* scroll up a page */
if (this->server == NULL) return ES_HANDLED;
this->list_pos = (this->list_pos < this->vscroll.cap) ? 0 : this->list_pos - this->vscroll.cap;
break;
case WKC_PAGEDOWN:
/* scroll down a page */
if (this->server == NULL) return ES_HANDLED;
this->list_pos = (this->list_pos + this->vscroll.cap > this->servers.Length() - 1) ? this->servers.Length() - 1 : this->list_pos + this->vscroll.cap;
break;
case WKC_HOME:
/* jump to beginning */
this->list_pos = 0;
break;
case WKC_END:
/* jump to end */
this->list_pos = this->servers.Length() - 1;
break;
default: break;
}
this->server = this->servers[this->list_pos];
/* scroll to the new server if it is outside the current range */
this->ScrollToSelectedServer();
/* redraw window */
this->SetDirty();
return ES_HANDLED;
}
if (this->field != NGWW_CLIENT) {
if (this->server != NULL) {
if (keycode == WKC_DELETE) { // Press 'delete' to remove servers
NetworkGameListRemoveItem(this->server);
NetworkRebuildHostList();
this->server = NULL;
this->list_pos = SLP_INVALID;
}
}
return state;