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Navigation: Fixed automatic fallback scrolling from glitching near scroll limits because of miscalculation of SizeContents (#323)

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This commit is contained in:
ocornut 2016-07-23 16:31:23 +02:00
parent ad48309047
commit 2f1fb41579
1 changed files with 2 additions and 2 deletions
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4
imgui.cpp
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@ -2446,7 +2446,7 @@ static void NavUpdate()
if (g.FocusedWindow && !g.FocusedWindow->DC.NavHasItems && g.FocusedWindow->DC.NavHasScroll && !(g.FocusedWindow->Flags & ImGuiWindowFlags_NoNav) && g.NavMoveRequest && (g.NavMoveDir == ImGuiNavDir_N || g.NavMoveDir == ImGuiNavDir_S))
{
float scroll_speed = ImFloor(g.FocusedWindow->CalcFontSize() * 100 * g.IO.DeltaTime + 0.5f); // We need round the scrolling speed because sub-pixel scroll isn't reliably supported.
g.FocusedWindow->Scroll.y = ImFloor(g.FocusedWindow->Scroll.y + ((g.NavMoveDir == ImGuiNavDir_N) ? -1.0f : +1.0f) * scroll_speed);
SetWindowScrollY(g.FocusedWindow, ImFloor(g.FocusedWindow->Scroll.y + ((g.NavMoveDir == ImGuiNavDir_N) ? -1.0f : +1.0f) * scroll_speed));
}
// Reset search
@ -5372,7 +5372,7 @@ ImVec2 ImGui::GetWindowPos()
static void SetWindowScrollY(ImGuiWindow* window, float new_scroll_y)
{
window->DC.CursorMaxPos.y += window->Scroll.y;
window->DC.CursorMaxPos.y += window->Scroll.y; // SizeContents is generally computed based on CursorMaxPos which is affected by scroll position, so we need to apply our change to it.
window->Scroll.y = new_scroll_y;
window->DC.CursorMaxPos.y -= window->Scroll.y;
}