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

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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
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6
imgui.cpp
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@ -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));
}
}

3
imgui.h
View File

@ -877,7 +877,8 @@ struct ImGuiIO
bool MouseDownOwned[5]; // Track if button was clicked inside a window. We don't request mouse capture from the application if click started outside ImGui bounds.
float MouseDownDuration[5]; // Duration the mouse button has been down (0.0f == just clicked)
float MouseDownDurationPrev[5]; // Previous time the mouse button has been down
float MouseDragMaxDistanceSqr[5]; // Squared maximum distance of how much mouse has traveled from the click point
ImVec2 MouseDragMaxDistanceAbs[5]; // Maximum distance, absolute, on each axis, of how much mouse has traveled from the clicking point
float MouseDragMaxDistanceSqr[5]; // Squared maximum distance of how much mouse has traveled from the clicking point
float KeysDownDuration[512]; // Duration the keyboard key has been down (0.0f == just pressed)
float KeysDownDurationPrev[512]; // Previous duration the key has been down