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#include "EditorUtils.hpp"
#define IMGUI_DEFINE_MATH_OPERATORS
#include <imgui_internal.h>
#include <backends/imgui_impl_glfw.h>
const char* ImGui::GetKeyNameGlfw(int key) {
return GetKeyName(ImGui_ImplGlfw_KeyToImGuiKey(key));
}
void ImGui::SetNextWindowSizeRelScreen(float xPercent, float yPercent, ImGuiCond cond) {
auto vs = ImGui::GetMainViewport()->Size;
ImGui::SetNextWindowSize({ vs.x * xPercent, vs.y * yPercent }, cond);
}
void ImGui::SetNextWindowCentered(ImGuiCond cond) {
auto vs = ImGui::GetMainViewport()->Size;
ImGui::SetNextWindowPos({ vs.x / 2, vs.y / 2 }, cond, { 0.5f, 0.5f });
}
void ImGui::PushDisabled() {
ImGui::PushItemFlag(ImGuiItemFlags_Disabled, true);
ImGui::PushStyleVar(ImGuiStyleVar_Alpha, 0.5f * ImGui::GetStyle().Alpha);
}
void ImGui::PopDisabled() {
ImGui::PopItemFlag();
ImGui::PopStyleVar();
}
bool ImGui::Button(const char* label, bool disabled) {
return Button(label, ImVec2{}, disabled);
}
bool ImGui::Button(const char* label, const ImVec2& sizeArg, bool disabled) {
if (disabled) PushDisabled();
bool res = ImGui::Button(label, sizeArg);
if (disabled) PopDisabled();
return res;
}
#define EDIT_RGBA_COLOR(EditorFunction, kUsesAlpha) \
float components[4]; \
components[0] = color->GetNormalizedRed(); \
components[1] = color->GetNormalizedGreen(); \
components[2] = color->GetNormalizedBlue(); \
if constexpr (kUsesAlpha) components[3] = color->GetNormalizedAlpha(); \
if (EditorFunction(label, components, flags)) { \
color->r = components[0] * 255; \
color->g = components[1] * 255; \
color->b = components[2] * 255; \
if constexpr (kUsesAlpha) color->a = components[3] * 255; \
return true; \
} else { \
return false; \
}
bool ImGui::ColorEdit3(const char* label, RgbaColor* color, ImGuiColorEditFlags flags) {
EDIT_RGBA_COLOR(ColorEdit3, false);
}
bool ImGui::ColorEdit4(const char* label, RgbaColor* color, ImGuiColorEditFlags flags) {
EDIT_RGBA_COLOR(ColorEdit4, true);
}
bool ImGui::ColorPicker3(const char* label, RgbaColor* color, ImGuiColorEditFlags flags) {
EDIT_RGBA_COLOR(ColorPicker3, false);
}
bool ImGui::ColorPicker4(const char* label, RgbaColor* color, ImGuiColorEditFlags flags) {
EDIT_RGBA_COLOR(ColorPicker4, true);
}
#undef EDIT_RGBA_COLOR
struct InputTextCallbackUserData {
std::string* str;
ImGuiInputTextCallback chainCallback;
void* chainCallbackUserData;
};
static int InputTextCallback(ImGuiInputTextCallbackData* data) {
auto user_data = (InputTextCallbackUserData*)data->UserData;
if (data->EventFlag == ImGuiInputTextFlags_CallbackResize) {
// Resize string callback
// If for some reason we refuse the new length (BufTextLen) and/or capacity (BufSize) we need to set them back to what we want.
auto str = user_data->str;
IM_ASSERT(data->Buf == str->c_str());
str->resize(data->BufTextLen);
data->Buf = (char*)str->c_str();
} else if (user_data->chainCallback) {
// Forward to user callback, if any
data->UserData = user_data->chainCallbackUserData;
return user_data->chainCallback(data);
}
return 0;
}
bool ImGui::InputText(const char* label, std::string* str, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data) {
IM_ASSERT((flags & ImGuiInputTextFlags_CallbackResize) == 0);
flags |= ImGuiInputTextFlags_CallbackResize;
InputTextCallbackUserData cbUserData;
cbUserData.str = str;
cbUserData.chainCallback = callback;
cbUserData.chainCallbackUserData = user_data;
return InputText(label, (char*)str->c_str(), str->capacity() + 1, flags, InputTextCallback, &cbUserData);
}
bool ImGui::InputTextMultiline(const char* label, std::string* str, const ImVec2& size, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* userData) {
IM_ASSERT((flags & ImGuiInputTextFlags_CallbackResize) == 0);
flags |= ImGuiInputTextFlags_CallbackResize;
InputTextCallbackUserData cbUserData;
cbUserData.str = str;
cbUserData.chainCallback = callback;
cbUserData.chainCallbackUserData = userData;
return InputTextMultiline(label, (char*)str->c_str(), str->capacity() + 1, size, flags, InputTextCallback, &cbUserData);
}
bool ImGui::InputTextWithHint(const char* label, const char* hint, std::string* str, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* userData) {
IM_ASSERT((flags & ImGuiInputTextFlags_CallbackResize) == 0);
flags |= ImGuiInputTextFlags_CallbackResize;
InputTextCallbackUserData cbUserData;
cbUserData.str = str;
cbUserData.chainCallback = callback;
cbUserData.chainCallbackUserData = userData;
return InputTextWithHint(label, hint, (char*)str->c_str(), str->capacity() + 1, flags, InputTextCallback, &cbUserData);
}
bool ImGui::Splitter(bool splitVertically, float thickness, float* size1, float* size2, float minSize1, float minSize2, float splitterLongAxisSize) {
// Adapted from https://github.com/thedmd/imgui-node-editor/blob/master/examples/blueprints-example/blueprints-example.cpp
// ::Splitter
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiID id = window->GetID("##Splitter");
ImRect bb;
bb.Min = window->DC.CursorPos + (splitVertically ? ImVec2(*size1, 0.0f) : ImVec2(0.0f, *size1));
bb.Max = bb.Min + CalcItemSize(splitVertically ? ImVec2(thickness, splitterLongAxisSize) : ImVec2(splitterLongAxisSize, thickness), 0.0f, 0.0f);
// Adapted from ImGui::SplitterBehavior, changes:
// - Simplified unneeded logic (hover_extend and hover_visibility_delay)
// - Changed clamped delta to clamping result size1 and deriving size2 from size1, allowing automatically adapting to the latest window content region width
auto itemFlagsBackup = g.CurrentItemFlags;
g.CurrentItemFlags |= ImGuiItemFlags_NoNav | ImGuiItemFlags_NoNavDefaultFocus;
bool itemAdd = ItemAdd(bb, id);
g.CurrentItemFlags = itemFlagsBackup;
if (!itemAdd) {
return false;
}
bool hovered, held;
auto bbInteract = bb;
ButtonBehavior(bbInteract, id, &hovered, &held, ImGuiButtonFlags_FlattenChildren | ImGuiButtonFlags_AllowItemOverlap);
if (hovered) {
g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HoveredRect;
} // for IsItemHovered(), because bbInteract is larger than bb
if (g.ActiveId != id) {
SetItemAllowOverlap();
}
if (held || (hovered && g.HoveredIdPreviousFrame == id && g.HoveredIdTimer >= 0.0f)) {
SetMouseCursor((splitVertically ? ImGuiAxis_X : ImGuiAxis_Y) == ImGuiAxis_Y ? ImGuiMouseCursor_ResizeNS : ImGuiMouseCursor_ResizeEW);
}
float contentSize = splitVertically ? window->ContentRegionRect.GetWidth() : window->ContentRegionRect.GetHeight();
if (held) {
ImVec2 mouseDelta2D = g.IO.MousePos - g.ActiveIdClickOffset - bbInteract.Min;
float mouseDelta = ((splitVertically ? ImGuiAxis_X : ImGuiAxis_Y) == ImGuiAxis_Y) ? mouseDelta2D.y : mouseDelta2D.x;
// Apply resize
if (mouseDelta != 0.0f) {
*size1 = ImClamp(*size1 + mouseDelta, minSize1, contentSize - minSize2 - thickness);
*size2 = contentSize - *size1 - thickness;
MarkItemEdited(id);
}
}
ImU32 col;
if (held) {
col = GetColorU32(ImGuiCol_SeparatorActive);
} else if (hovered && g.HoveredIdTimer >= 0.0f) {
col = GetColorU32(ImGuiCol_SeparatorHovered);
} else {
col = GetColorU32(ImGuiCol_Separator);
}
window->DrawList->AddRectFilled(bb.Min, bb.Max, col, 0.0f);
return held;
}
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