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Fix #10554: Let Scrollbar::SetPosition clamp instead of assert. (#10555)

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PeterN 2023-03-09 15:19:58 +00:00 committed by GitHub
parent 1e4a89177e
commit 2d3250923c
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3 changed files with 4 additions and 8 deletions
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2
src/company_gui.cpp
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@ -795,7 +795,7 @@ public:
/* Position scrollbar to selected group */
for (uint i = 0; i < this->rows; i++) {
if (this->groups[i]->index == sel) {
this->vscroll->SetPosition(Clamp(i - this->vscroll->GetCapacity() / 2, 0, std::max(this->vscroll->GetCount() - this->vscroll->GetCapacity(), 0)));
this->vscroll->SetPosition(i - this->vscroll->GetCapacity() / 2);
break;
}
}

4
src/script/script_gui.cpp
View File

@ -866,9 +866,7 @@ struct ScriptDebugWindow : public Window {
}
if (this->autoscroll) {
int scroll_pos = std::max(0, log->used - this->vscroll->GetCapacity());
if (scroll_pos != this->vscroll->GetPosition()) {
this->vscroll->SetPosition(scroll_pos);
if (this->vscroll->SetPosition(scroll_pos)) {
/* We need a repaint */
this->SetWidgetDirty(WID_SCRD_SCROLLBAR);
this->SetWidgetDirty(WID_SCRD_LOG_PANEL);

6
src/widget_type.h
View File

@ -746,10 +746,8 @@ public:
*/
bool SetPosition(int position)
{
assert(position >= 0);
assert(this->count <= this->cap ? (position == 0) : (position + this->cap <= this->count));
uint16 old_pos = this->pos;
this->pos = position;
this->pos = Clamp(position, 0, std::max(this->count - this->cap, 0));
return this->pos != old_pos;
}
@ -768,7 +766,7 @@ public:
case SS_BIG: difference *= this->cap; break;
default: break;
}
return this->SetPosition(Clamp(this->pos + difference, 0, std::max(this->count - this->cap, 0)));
return this->SetPosition(this->pos + difference);
}
/**