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Debug Tools: Added DebugStartItemPicker() in imgui_internal.h to facilitate binding this anywhere in user's tool. Adedd highlight. Added IMGUI_DEBUG_TOOL_ITEM_PICKER_EX to break in ItemAdd().

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This commit is contained in:
ocornut
2019-07-19 10:48:22 -07:00
committed by omar
parent 44336950e9
commit 047dc16af5
3 changed files with 53 additions and 32 deletions
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73
imgui.cpp
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@@ -2861,16 +2861,6 @@ void ImGui::SetHoveredID(ImGuiID id)
g.HoveredIdAllowOverlap = false;
if (id != 0 && g.HoveredIdPreviousFrame != id)
g.HoveredIdTimer = g.HoveredIdNotActiveTimer = 0.0f;
// [DEBUG] Item Picker tool!
// We perform the check here because SetHoveredID() is not frequently called (1~ time a frame), making
// the cost of this tool near-zero. We would get slightly better call-stack if we made the test in ItemAdd()
// but that would incur a slightly higher cost and may require us to hide this feature behind a define.
if (id != 0 && id == g.DebugBreakItemId)
{
IM_DEBUG_BREAK();
g.DebugBreakItemId = 0;
}
}
ImGuiID ImGui::GetHoveredID()
@@ -2979,6 +2969,15 @@ bool ImGui::ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb_arg)
if (g.NavWindow->RootWindowForNav == window->RootWindowForNav)
if (window == g.NavWindow || ((window->Flags | g.NavWindow->Flags) & ImGuiWindowFlags_NavFlattened))
NavProcessItem(window, nav_bb_arg ? *nav_bb_arg : bb, id);
// [DEBUG] Item Picker tool, when enabling the "extended" version we perform the check in ItemAdd()
#ifdef IMGUI_DEBUG_TOOL_ITEM_PICKER_EX
if (id == g.DebugItemPickerBreakID)
{
IM_DEBUG_BREAK();
g.DebugItemPickerBreakID = 0;
}
#endif
}
window->DC.LastItemId = id;
@@ -3067,6 +3066,17 @@ bool ImGui::ItemHoverable(const ImRect& bb, ImGuiID id)
return false;
SetHoveredID(id);
// [DEBUG] Item Picker tool!
// We perform the check here because SetHoveredID() is not frequently called (1~ time a frame), making
// the cost of this tool near-zero. We can get slightly better call-stack and support picking non-hovered
// items if we perform the test in ItemAdd(), but that would incur a small runtime cost.
// #define IMGUI_DEBUG_TOOL_ITEM_PICKER_EX in imconfig.h if you want this check to also be performed in ItemAdd().
if (g.DebugItemPickerActive && g.HoveredIdPreviousFrame == id)
GetForegroundDrawList()->AddRect(bb.Min, bb.Max, IM_COL32(255, 255, 0, 255));
if (g.DebugItemPickerBreakID == id)
IM_DEBUG_BREAK();
return true;
}
@@ -3787,6 +3797,27 @@ void ImGui::NewFrame()
g.BeginPopupStack.resize(0);
ClosePopupsOverWindow(g.NavWindow, false);
// [DEBUG] Item picker tool - start with DebugStartItemPicker() - useful to visually select an item and break into its call-stack.
g.DebugItemPickerBreakID = 0;
if (g.DebugItemPickerActive)
{
const ImGuiID hovered_id = g.HoveredIdPreviousFrame;
ImGui::SetMouseCursor(ImGuiMouseCursor_Hand);
if (ImGui::IsKeyPressedMap(ImGuiKey_Escape))
g.DebugItemPickerActive = false;
if (ImGui::IsMouseClicked(0) && hovered_id)
{
g.DebugItemPickerBreakID = hovered_id;
g.DebugItemPickerActive = false;
}
ImGui::SetNextWindowBgAlpha(0.60f);
ImGui::BeginTooltip();
ImGui::Text("HoveredId: 0x%08X", hovered_id);
ImGui::Text("Press ESC to abort picking.");
ImGui::TextColored(GetStyleColorVec4(hovered_id ? ImGuiCol_Text : ImGuiCol_TextDisabled), "Click to break in debugger!");
ImGui::EndTooltip();
}
// Create implicit/fallback window - which we will only render it if the user has added something to it.
// We don't use "Debug" to avoid colliding with user trying to create a "Debug" window with custom flags.
// This fallback is particularly important as it avoid ImGui:: calls from crashing.
@@ -9801,27 +9832,9 @@ void ImGui::ShowMetricsWindow(bool* p_open)
if (ImGui::TreeNode("Tools"))
{
static bool picking_enabled = false;
// The Item Picker tool is super useful to visually select an item and break into the call-stack of where it was submitted.
if (ImGui::Button("Item Picker.."))
picking_enabled = true;
if (picking_enabled)
{
const ImGuiID hovered_id = g.HoveredIdPreviousFrame;
ImGui::SetMouseCursor(ImGuiMouseCursor_Hand);
if (ImGui::IsKeyPressedMap(ImGuiKey_Escape))
picking_enabled = false;
if (ImGui::IsMouseClicked(0) && hovered_id)
{
g.DebugBreakItemId = hovered_id;
picking_enabled = false;
}
ImGui::SetNextWindowBgAlpha(0.5f);
ImGui::BeginTooltip();
ImGui::Text("HoveredId: 0x%08X", hovered_id);
ImGui::Text("Press ESC to abort picking.");
ImGui::TextColored(GetStyleColorVec4(hovered_id ? ImGuiCol_Text : ImGuiCol_TextDisabled), "Click to break in debugger!");
ImGui::EndTooltip();
}
ImGui::DebugStartItemPicker();
ImGui::Checkbox("Show windows begin order", &show_windows_begin_order);
ImGui::Checkbox("Show windows rectangles", &show_windows_rects);