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Added OpenPopupOnItemClick(); helper which mimic BeginPopupContextItem() but doesn't do the open.

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Made the color popups uses this standard function so they handle reopening a context menu.
This commit is contained in:
omar 2017-10-20 18:56:31 +02:00
parent 3cc10d25a9
commit 43df7eb5ea
2 changed files with 31 additions and 23 deletions
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47
imgui.cpp
View File

@ -3446,7 +3446,7 @@ bool ImGui::IsItemActive()
bool ImGui::IsItemClicked(int mouse_button)
{
return IsMouseClicked(mouse_button) && IsItemHovered();
return IsMouseClicked(mouse_button) && IsItemHovered(ImGuiHoveredFlags_Default);
}
bool ImGui::IsAnyItemHovered()
@ -3746,21 +3746,28 @@ void ImGui::EndPopup()
PopStyleVar();
}
bool ImGui::OpenPopupOnItemClick(const char* str_id, int mouse_button)
{
ImGuiWindow* window = GImGui->CurrentWindow;
if (IsMouseClicked(mouse_button) && IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup))
{
ImGuiID id = str_id ? window->GetID(str_id) : window->DC.LastItemId; // If user hasn't passed an ID, we can use the LastItemID. Using LastItemID as a Popup ID won't conflict!
IM_ASSERT(id != 0); // However, you cannot pass a NULL str_id if the last item has no identifier (e.g. a Text() item)
OpenPopupEx(id, true);
return true;
}
return false;
}
// This is a helper to handle the simplest case of associating one named popup to one given widget.
// 1. If you have many possible popups (for different "instances" of a same widget, or for wholly different widgets), you may be better off handling
// this yourself so you can store data relative to the widget that opened the popup instead of choosing different popup identifiers.
// 2. If you want right-clicking on the same item to reopen the popup at new location, use the same code replacing IsItemHovered() with IsItemRectHovered()
// and passing true to the OpenPopupEx().
// This is because hovering an item in a window below the popup won't work. IsItemRectHovered() skips this test.
// The pattern of ignoring the fact that the item can be interacted with (because it is blocked by the active popup) may useful in some situation
// when e.g. large canvas where the content of menu driven by click position.
// You may want to handle this on user side if you have specific needs (e.g. tweaking IsItemHovered() parameters).
// You can pass a NULL str_id to use the identifier of the last item.
bool ImGui::BeginPopupContextItem(const char* str_id, int mouse_button)
{
ImGuiWindow* window = GImGui->CurrentWindow;
ImGuiID id = str_id ? window->GetID(str_id) : window->DC.LastItemId; // If user hasn't passed an ID, we can use the LastItemID. Using LastItemID as a Popup ID won't conflict!
IM_ASSERT(id != 0); // However, you cannot pass a NULL str_id if the last item has no identifier (e.g. a Text() item)
if (IsMouseClicked(mouse_button))
if (IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup))
if (IsMouseClicked(mouse_button) && IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup))
OpenPopupEx(id, true);
return BeginPopupEx(id, ImGuiWindowFlags_ShowBorders | ImGuiWindowFlags_AlwaysAutoResize);
}
@ -9575,8 +9582,8 @@ bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flag
value_changed |= value_changed_as_float |= DragFloat(ids[n], &f[n], 1.0f/255.0f, 0.0f, hdr ? 0.0f : 1.0f, fmt_table_float[fmt_idx][n]);
else
value_changed |= DragInt(ids[n], &i[n], 1.0f, 0, hdr ? 0 : 255, fmt_table_int[fmt_idx][n]);
if (!(flags & ImGuiColorEditFlags_NoOptions) && IsItemHovered() && IsMouseClicked(1))
OpenPopup("context");
if (!(flags & ImGuiColorEditFlags_NoOptions))
OpenPopupOnItemClick("context");
}
PopItemWidth();
PopItemWidth();
@ -9602,8 +9609,8 @@ bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flag
else
sscanf(p, "%02X%02X%02X", (unsigned int*)&i[0], (unsigned int*)&i[1], (unsigned int*)&i[2]);
}
if (!(flags & ImGuiColorEditFlags_NoOptions) && IsItemHovered() && IsMouseClicked(1))
OpenPopup("context");
if (!(flags & ImGuiColorEditFlags_NoOptions))
OpenPopupOnItemClick("context");
PopItemWidth();
}
@ -9624,8 +9631,8 @@ bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flag
SetNextWindowPos(window->DC.LastItemRect.GetBL() + ImVec2(-1,style.ItemSpacing.y));
}
}
if (!(flags & ImGuiColorEditFlags_NoOptions) && IsItemHovered() && IsMouseClicked(1))
OpenPopup("context");
if (!(flags & ImGuiColorEditFlags_NoOptions))
OpenPopupOnItemClick("context");
if (BeginPopup("picker"))
{
@ -9791,8 +9798,8 @@ bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags fl
value_changed = value_changed_sv = true;
}
}
if (!(flags & ImGuiColorEditFlags_NoOptions) && IsItemHovered() && IsMouseClicked(1))
OpenPopup("context");
if (!(flags & ImGuiColorEditFlags_NoOptions))
OpenPopupOnItemClick("context");
}
else if (flags & ImGuiColorEditFlags_PickerHueBar)
{
@ -9804,8 +9811,8 @@ bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags fl
V = 1.0f - ImSaturate((io.MousePos.y - picker_pos.y) / (sv_picker_size-1));
value_changed = value_changed_sv = true;
}
if (!(flags & ImGuiColorEditFlags_NoOptions) && IsItemHovered() && IsMouseClicked(1))
OpenPopup("context");
if (!(flags & ImGuiColorEditFlags_NoOptions))
OpenPopupOnItemClick("context");
// Hue bar logic
SetCursorScreenPos(ImVec2(bar0_pos_x, picker_pos.y));

3
imgui.h
View File

@ -390,11 +390,12 @@ namespace ImGui
// Popups
IMGUI_API void OpenPopup(const char* str_id); // call to mark popup as open (don't call every frame!). popups are closed when user click outside, or if CloseCurrentPopup() is called within a BeginPopup()/EndPopup() block. By default, Selectable()/MenuItem() are calling CloseCurrentPopup(). Popup identifiers are relative to the current ID-stack (so OpenPopup and BeginPopup needs to be at the same level).
IMGUI_API bool OpenPopupOnItemClick(const char* str_id = NULL, int mouse_button = 1); // helper to open popup when clicked on last item. return true when just opened.
IMGUI_API bool BeginPopup(const char* str_id); // return true if the popup is open, and you can start outputting to it. only call EndPopup() if BeginPopup() returned true!
IMGUI_API bool BeginPopupModal(const char* name, bool* p_open = NULL, ImGuiWindowFlags extra_flags = 0); // modal dialog (block interactions behind the modal window, can't close the modal window by clicking outside)
IMGUI_API bool BeginPopupContextItem(const char* str_id = NULL, int mouse_button = 1); // helper to open and begin popup when clicked on last item. if you can pass a NULL str_id only if the previous item had an id. If you want to use that on a non-interactive item such as Text() you need to pass in an explicit ID here. read comments in .cpp!
IMGUI_API bool BeginPopupContextWindow(const char* str_id = NULL, int mouse_button = 1, bool also_over_items = true); // helper to open and begin popup when clicked on current window.
IMGUI_API bool BeginPopupContextVoid(const char* str_id = NULL, int mouse_button = 1); // helper to open and begin popup when clicked in void (no window).
IMGUI_API bool BeginPopupContextVoid(const char* str_id = NULL, int mouse_button = 1); // helper to open and begin popup when clicked in void (where there are no imgui windows).
IMGUI_API void EndPopup();
IMGUI_API bool IsPopupOpen(const char* str_id); // return true if the popup is open
IMGUI_API void CloseCurrentPopup(); // close the popup we have begin-ed into. clicking on a MenuItem or Selectable automatically close the current popup.