IO: Tracking extra mouse dragging data which is convenient for implementating various manual drag and drop patterns.

This commit is contained in:
omar
2017-10-27 18:21:30 +02:00
parent 9f200d10d5
commit b422f35872
2 changed files with 7 additions and 2 deletions

View File

@ -2313,11 +2313,15 @@ void ImGui::NewFrame()
g.IO.MouseClickedTime[i] = g.Time;
}
g.IO.MouseClickedPos[i] = g.IO.MousePos;
g.IO.MouseDragMaxDistanceAbs[i] = ImVec2(0.0f, 0.0f);
g.IO.MouseDragMaxDistanceSqr[i] = 0.0f;
}
else if (g.IO.MouseDown[i])
{
g.IO.MouseDragMaxDistanceSqr[i] = ImMax(g.IO.MouseDragMaxDistanceSqr[i], ImLengthSqr(g.IO.MousePos - g.IO.MouseClickedPos[i]));
ImVec2 mouse_delta = g.IO.MousePos - g.IO.MouseClickedPos[i];
g.IO.MouseDragMaxDistanceAbs[i].x = ImMax(g.IO.MouseDragMaxDistanceAbs[i].x, mouse_delta.x < 0.0f ? -mouse_delta.x : mouse_delta.x);
g.IO.MouseDragMaxDistanceAbs[i].y = ImMax(g.IO.MouseDragMaxDistanceAbs[i].y, mouse_delta.y < 0.0f ? -mouse_delta.y : mouse_delta.y);
g.IO.MouseDragMaxDistanceSqr[i] = ImMax(g.IO.MouseDragMaxDistanceSqr[i], ImLengthSqr(mouse_delta));
}
}