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Docking: fix undocking from tab-bar by moving mouse horizontally, broken by d705192.

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This commit is contained in:
ocornut 2021-03-30 14:52:10 +02:00
parent 5991851eb9
commit 0e0a783b8c
1 changed files with 5 additions and 4 deletions
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9
imgui_widgets.cpp
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@ -7920,17 +7920,20 @@ bool ImGui::TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open,
else if (held && !tab_appearing && IsMouseDragging(0)) else if (held && !tab_appearing && IsMouseDragging(0))
{ {
// Drag and drop: re-order tabs // Drag and drop: re-order tabs
int drag_dir = 0;
float drag_distance_from_edge_x = 0.0f; float drag_distance_from_edge_x = 0.0f;
if (!g.DragDropActive && ((tab_bar->Flags & ImGuiTabBarFlags_Reorderable) || (docked_window != NULL))) if (!g.DragDropActive && ((tab_bar->Flags & ImGuiTabBarFlags_Reorderable) || (docked_window != NULL)))
{ {
// While moving a tab it will jump on the other side of the mouse, so we also test for MouseDelta.x // While moving a tab it will jump on the other side of the mouse, so we also test for MouseDelta.x
if (g.IO.MouseDelta.x < 0.0f && g.IO.MousePos.x < bb.Min.x) if (g.IO.MouseDelta.x < 0.0f && g.IO.MousePos.x < bb.Min.x)
{ {
drag_dir = -1;
drag_distance_from_edge_x = bb.Min.x - g.IO.MousePos.x; drag_distance_from_edge_x = bb.Min.x - g.IO.MousePos.x;
TabBarQueueReorderFromMousePos(tab_bar, tab, g.IO.MousePos); TabBarQueueReorderFromMousePos(tab_bar, tab, g.IO.MousePos);
} }
else if (g.IO.MouseDelta.x > 0.0f && g.IO.MousePos.x > bb.Max.x) else if (g.IO.MouseDelta.x > 0.0f && g.IO.MousePos.x > bb.Max.x)
{ {
drag_dir = +1;
drag_distance_from_edge_x = g.IO.MousePos.x - bb.Max.x; drag_distance_from_edge_x = g.IO.MousePos.x - bb.Max.x;
TabBarQueueReorderFromMousePos(tab_bar, tab, g.IO.MousePos); TabBarQueueReorderFromMousePos(tab_bar, tab, g.IO.MousePos);
} }
@ -7941,11 +7944,9 @@ bool ImGui::TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open,
{ {
// We use a variable threshold to distinguish dragging tabs within a tab bar and extracting them out of the tab bar // We use a variable threshold to distinguish dragging tabs within a tab bar and extracting them out of the tab bar
bool undocking_tab = (g.DragDropActive && g.DragDropPayload.SourceId == id); bool undocking_tab = (g.DragDropActive && g.DragDropPayload.SourceId == id);
if (!undocking_tab) //&& (!g.IO.ConfigDockingWithShift || g.IO.KeyShift) if (!undocking_tab) //&& (!g.IO.ConfigDockingWithShift || g.IO.KeyShift)
{ {
float threshold_base = g.FontSize; float threshold_base = g.FontSize;
//float threshold_base = g.IO.ConfigDockingWithShift ? g.FontSize * 0.5f : g.FontSize;
float threshold_x = (threshold_base * 2.2f); float threshold_x = (threshold_base * 2.2f);
float threshold_y = (threshold_base * 1.5f) + ImClamp((ImFabs(g.IO.MouseDragMaxDistanceAbs[0].x) - threshold_base * 2.0f) * 0.20f, 0.0f, threshold_base * 4.0f); float threshold_y = (threshold_base * 1.5f) + ImClamp((ImFabs(g.IO.MouseDragMaxDistanceAbs[0].x) - threshold_base * 2.0f) * 0.20f, 0.0f, threshold_base * 4.0f);
//GetForegroundDrawList()->AddRect(ImVec2(bb.Min.x - threshold_x, bb.Min.y - threshold_y), ImVec2(bb.Max.x + threshold_x, bb.Max.y + threshold_y), IM_COL32_WHITE); // [DEBUG] //GetForegroundDrawList()->AddRect(ImVec2(bb.Min.x - threshold_x, bb.Min.y - threshold_y), ImVec2(bb.Max.x + threshold_x, bb.Max.y + threshold_y), IM_COL32_WHITE); // [DEBUG]
@ -7953,8 +7954,8 @@ bool ImGui::TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open,
float distance_from_edge_y = ImMax(bb.Min.y - g.IO.MousePos.y, g.IO.MousePos.y - bb.Max.y); float distance_from_edge_y = ImMax(bb.Min.y - g.IO.MousePos.y, g.IO.MousePos.y - bb.Max.y);
if (distance_from_edge_y >= threshold_y) if (distance_from_edge_y >= threshold_y)
undocking_tab = true; undocking_tab = true;
else if (drag_distance_from_edge_x > threshold_x) if (drag_distance_from_edge_x > threshold_x)
if ((tab_bar->ReorderRequestOffset < 0 && tab_bar->GetTabOrder(tab) == 0) || (tab_bar->ReorderRequestOffset > 0 && tab_bar->GetTabOrder(tab) == tab_bar->Tabs.Size - 1)) if ((drag_dir < 0 && tab_bar->GetTabOrder(tab) == 0) || (drag_dir > 0 && tab_bar->GetTabOrder(tab) == tab_bar->Tabs.Size - 1))
undocking_tab = true; undocking_tab = true;
} }