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Columns: Fixed dragging when using a same of columns multiple times in the frame. (#125)

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This commit is contained in:
omar 2017-12-22 19:35:58 +01:00
parent e1a103b251
commit 471bcf8b5e
1 changed files with 4 additions and 4 deletions
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8
imgui.cpp
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@ -10867,6 +10867,8 @@ static float PixelsToOffsetNorm(const ImGuiColumnsSet* columns, float offset)
return (offset - columns->MinX) / (columns->MaxX - columns->MinX);
}
static inline float GetColumnsRectHalfWidth() { return 4.0f; }
static float GetDraggedColumnOffset(ImGuiColumnsSet* columns, int column_index)
{
// Active (dragged) column always follow mouse. The reason we need this is that dragging a column to the right edge of an auto-resizing
@ -10876,7 +10878,7 @@ static float GetDraggedColumnOffset(ImGuiColumnsSet* columns, int column_index)
IM_ASSERT(column_index > 0); // We cannot drag column 0. If you get this assert you may have a conflict between the ID of your columns and another widgets.
IM_ASSERT(g.ActiveId == columns->ID + ImGuiID(column_index));
float x = g.IO.MousePos.x - g.ActiveIdClickOffset.x - window->Pos.x;
float x = g.IO.MousePos.x - g.ActiveIdClickOffset.x + GetColumnsRectHalfWidth() - window->Pos.x;
x = ImMax(x, ImGui::GetColumnOffset(column_index - 1) + g.Style.ColumnsMinSpacing);
if ((columns->Flags & ImGuiColumnsFlags_NoPreserveWidths))
x = ImMin(x, ImGui::GetColumnOffset(column_index + 1) - g.Style.ColumnsMinSpacing);
@ -11086,7 +11088,7 @@ void ImGui::EndColumns()
{
float x = window->Pos.x + GetColumnOffset(n);
const ImGuiID column_id = columns->ID + ImGuiID(n);
const float column_hw = 4.0f; // Half-width for interaction
const float column_hw = GetColumnsRectHalfWidth(); // Half-width for interaction
const ImRect column_rect(ImVec2(x - column_hw, y1), ImVec2(x + column_hw, y2));
KeepAliveID(column_id);
if (IsClippedEx(column_rect, column_id, false))
@ -11098,8 +11100,6 @@ void ImGui::EndColumns()
ButtonBehavior(column_rect, column_id, &hovered, &held);
if (hovered || held)
g.MouseCursor = ImGuiMouseCursor_ResizeEW;
if (held && g.ActiveIdIsJustActivated)
g.ActiveIdClickOffset.x -= column_hw; // Store from center of column line (we used a 8 wide rect for columns clicking). This is used by GetDraggedColumnOffset().
if (held && !(columns->Columns[n].Flags & ImGuiColumnsFlags_NoResize))
dragging_column = n;
}