diff options
| -rw-r--r-- | src/ai/ai_gui.cpp | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/ai/ai_gui.cpp b/src/ai/ai_gui.cpp index 90e7b6394..635ca353f 100644 --- a/src/ai/ai_gui.cpp +++ b/src/ai/ai_gui.cpp @@ -727,8 +727,14 @@ struct AIDebugWindow : public Window { AILog::LogData *log = (AILog::LogData *)AIObject::GetLogPointer(); _current_company = old_company; - SetVScrollCount(this, (log == NULL) ? 0 : log->used); - this->InvalidateWidget(AID_WIDGET_SCROLLBAR); + int scroll_count = (log == NULL) ? 0 : log->used; + if (this->vscroll.count != scroll_count) { + SetVScrollCount(this, scroll_count); + + /* We need a repaint */ + this->InvalidateWidget(AID_WIDGET_SCROLLBAR); + } + if (log == NULL) return; /* Detect when the user scrolls the window. Enable autoscroll when the @@ -736,7 +742,15 @@ struct AIDebugWindow : public Window { if (this->last_vscroll_pos != this->vscroll.pos) { this->autoscroll = this->vscroll.pos >= log->used - this->vscroll.cap; } - if (this->autoscroll) this->vscroll.pos = max(0, log->used - this->vscroll.cap); + if (this->autoscroll) { + int scroll_pos = max(0, log->used - this->vscroll.cap); + if (scroll_pos != this->vscroll.pos) { + this->vscroll.pos = scroll_pos; + + /* We need a repaint */ + this->InvalidateWidget(AID_WIDGET_SCROLLBAR); + } + } last_vscroll_pos = this->vscroll.pos; int y = 6; @@ -799,6 +813,7 @@ struct AIDebugWindow : public Window { virtual void OnResize(Point delta) { this->vscroll.cap += delta.y / (int)this->resize.step_height; + SetVScrollCount(this, this->vscroll.count); // vscroll.pos should be in a valid range } }; |