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(svn r22307) -Fix: When drawing the town authority window, check whether the availability of the actions changed, and force a complete redraw in that case.

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frosch 2011-04-09 21:15:24 +00:00
parent af2f6de903
commit 6ce83c0aaa
1 changed files with 4 additions and 1 deletions
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5
src/town_gui.cpp
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@ -73,6 +73,7 @@ private:
Town *town; ///< Town being displayed.
int sel_index; ///< Currently selected town action, \c 0 to \c TACT_COUNT-1, \c -1 means no action selected.
Scrollbar *vscroll;
uint displayed_actions_on_previous_painting; ///< Actions that were available on the previous call to OnPaint()
/**
* Get the position of the Nth set bit.
@ -96,7 +97,7 @@ private:
}
public:
TownAuthorityWindow(const WindowDesc *desc, WindowNumber window_number) : Window(), sel_index(-1)
TownAuthorityWindow(const WindowDesc *desc, WindowNumber window_number) : Window(), sel_index(-1), displayed_actions_on_previous_painting(0)
{
this->town = Town::Get(window_number);
this->InitNested(desc, window_number);
@ -108,6 +109,8 @@ public:
{
int numact;
uint buttons = GetMaskOfTownActions(&numact, _local_company, this->town);
if (buttons != displayed_actions_on_previous_painting) this->SetDirty();
displayed_actions_on_previous_painting = buttons;
this->vscroll->SetCount(numact + 1);