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Maintaining ActiveIdTimer and HoveredIdTimer (the later is useful for drag and drop, both will be of course for creators of custom widgets)

This commit is contained in:
omar 2017-10-29 23:46:32 +01:00
parent fd88bc270a
commit b13d281356
2 changed files with 13 additions and 2 deletions
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11
imgui.cpp
View File

@ -1883,6 +1883,8 @@ void ImGui::SetActiveID(ImGuiID id, ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
g.ActiveIdIsJustActivated = (g.ActiveId != id);
if (g.ActiveIdIsJustActivated)
g.ActiveIdTimer = 0.0f;
g.ActiveId = id;
g.ActiveIdAllowOverlap = false;
g.ActiveIdIsAlive |= (id != 0);
@ -1899,6 +1901,7 @@ void ImGui::SetHoveredID(ImGuiID id)
ImGuiContext& g = *GImGui;
g.HoveredId = id;
g.HoveredIdAllowOverlap = false;
g.HoveredIdTimer = (id != 0 && g.HoveredIdPreviousFrame == id) ? (g.HoveredIdTimer + g.IO.DeltaTime) : 0.0f;
}
void ImGui::KeepAliveID(ImGuiID id)
@ -2220,11 +2223,15 @@ void ImGui::NewFrame()
g.RenderDrawData.CmdListsCount = g.RenderDrawData.TotalVtxCount = g.RenderDrawData.TotalIdxCount = 0;
// Clear reference to active widget if the widget isn't alive anymore
if (!g.HoveredIdPreviousFrame)
g.HoveredIdTimer = 0.0f;
g.HoveredIdPreviousFrame = g.HoveredId;
g.HoveredId = 0;
g.HoveredIdAllowOverlap = false;
if (!g.ActiveIdIsAlive && g.ActiveIdPreviousFrame == g.ActiveId && g.ActiveId != 0)
ClearActiveID();
if (g.ActiveId)
g.ActiveIdTimer += g.IO.DeltaTime;
g.ActiveIdPreviousFrame = g.ActiveId;
g.ActiveIdIsAlive = false;
g.ActiveIdIsJustActivated = false;
@ -10820,8 +10827,8 @@ void ImGui::ShowMetricsWindow(bool* p_open)
{
ImGui::Text("HoveredWindow: '%s'", g.HoveredWindow ? g.HoveredWindow->Name : "NULL");
ImGui::Text("HoveredRootWindow: '%s'", g.HoveredRootWindow ? g.HoveredRootWindow->Name : "NULL");
ImGui::Text("HoveredId: 0x%08X/0x%08X", g.HoveredId, g.HoveredIdPreviousFrame); // Data is "in-flight" so depending on when the Metrics window is called we may see current frame information or not
ImGui::Text("ActiveId: 0x%08X/0x%08X", g.ActiveId, g.ActiveIdPreviousFrame);
ImGui::Text("HoveredId: 0x%08X/0x%08X (%.2f sec)", g.HoveredId, g.HoveredIdPreviousFrame, g.HoveredIdTimer); // Data is "in-flight" so depending on when the Metrics window is called we may see current frame information or not
ImGui::Text("ActiveId: 0x%08X/0x%08X (%.2f sec)", g.ActiveId, g.ActiveIdPreviousFrame, g.ActiveIdTimer);
ImGui::Text("ActiveIdWindow: '%s'", g.ActiveIdWindow ? g.ActiveIdWindow->Name : "NULL");
ImGui::Text("NavWindow: '%s'", g.NavWindow ? g.NavWindow->Name : "NULL");
ImGui::TreePop();

4
imgui_internal.h
View File

@ -429,8 +429,10 @@ struct ImGuiContext
ImGuiID HoveredId; // Hovered widget
bool HoveredIdAllowOverlap;
ImGuiID HoveredIdPreviousFrame;
float HoveredIdTimer;
ImGuiID ActiveId; // Active widget
ImGuiID ActiveIdPreviousFrame;
float ActiveIdTimer;
bool ActiveIdIsAlive; // Active widget has been seen this frame
bool ActiveIdIsJustActivated; // Set at the time of activation for one frame
bool ActiveIdAllowOverlap; // Active widget allows another widget to steal active id (generally for overlapping widgets, but not always)
@ -521,8 +523,10 @@ struct ImGuiContext
HoveredId = 0;
HoveredIdAllowOverlap = false;
HoveredIdPreviousFrame = 0;
HoveredIdTimer = 0.0f;
ActiveId = 0;
ActiveIdPreviousFrame = 0;
ActiveIdTimer = 0.0f;
ActiveIdIsAlive = false;
ActiveIdIsJustActivated = false;
ActiveIdAllowOverlap = false;