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Codechange: merge duplicated logic to scroll in lists by key into a single function

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Rubidium
2021-04-18 20:29:46 +02:00
committed by rubidium42
parent b3495f1a13
commit bf4fe19a66
5 changed files with 86 additions and 114 deletions
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39
src/network/network_gui.cpp
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@@ -66,8 +66,8 @@ void UpdateNetworkGameWindow()
}
typedef GUIList<NetworkGameList*, StringFilter&> GUIGameServerList;
typedef uint16 ServerListPosition;
static const ServerListPosition SLP_INVALID = 0xFFFF;
typedef int ServerListPosition;
static const ServerListPosition SLP_INVALID = -1;
/** Full blown container to make it behave exactly as we want :) */
class NWidgetServerListHeader : public NWidgetContainer {
@@ -771,39 +771,8 @@ public:
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.size() == 0) return ES_HANDLED;
switch (keycode) {
case WKC_UP:
/* scroll up by one */
if (this->list_pos == SLP_INVALID) return ES_HANDLED;
if (this->list_pos > 0) this->list_pos--;
break;
case WKC_DOWN:
/* scroll down by one */
if (this->list_pos == SLP_INVALID) return ES_HANDLED;
if (this->list_pos < this->servers.size() - 1) this->list_pos++;
break;
case WKC_PAGEUP:
/* scroll up a page */
if (this->list_pos == SLP_INVALID) return ES_HANDLED;
this->list_pos = (this->list_pos < this->vscroll->GetCapacity()) ? 0 : this->list_pos - this->vscroll->GetCapacity();
break;
case WKC_PAGEDOWN:
/* scroll down a page */
if (this->list_pos == SLP_INVALID) return ES_HANDLED;
this->list_pos = std::min(this->list_pos + this->vscroll->GetCapacity(), (int)this->servers.size() - 1);
break;
case WKC_HOME:
/* jump to beginning */
this->list_pos = 0;
break;
case WKC_END:
/* jump to end */
this->list_pos = (ServerListPosition)this->servers.size() - 1;
break;
default: NOT_REACHED();
}
if (this->vscroll->UpdateListPositionOnKeyPress(this->list_pos, keycode) == ES_HANDLED) {
if (this->list_pos == SLP_INVALID) return ES_HANDLED;
this->server = this->servers[this->list_pos];