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scalar range imgui widget

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Green Sky
2021-03-19 16:44:43 +01:00
parent 0a1895d0be
commit 1f483b1752
4 changed files with 130 additions and 0 deletions
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48
framework/imgui/src/mm/imgui/widgets/scalar_range.cpp Normal file
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#include "./scalar_range.hpp"
namespace MM::ImGuiWidgets {
// unsigned int
template<>
bool DragScalarRange2(const char* label, ScalarRange2<uint8_t>& range, uint8_t v_min , uint8_t v_max) {
return DragScalarRange2EXT(label, ImGuiDataType_U8, &range.min(), &range.max(), 0.1f, v_min, v_max);
}
template<>
bool DragScalarRange2(const char* label, ScalarRange2<uint16_t>& range, uint16_t v_min , uint16_t v_max) {
return DragScalarRange2EXT(label, ImGuiDataType_U16, &range.min(), &range.max(), 0.1f, v_min, v_max);
}
template<>
bool DragScalarRange2(const char* label, ScalarRange2<uint32_t>& range, uint32_t v_min , uint32_t v_max) {
return DragScalarRange2EXT(label, ImGuiDataType_U32, &range.min(), &range.max(), 0.1f, v_min, v_max);
}
template<>
bool DragScalarRange2(const char* label, ScalarRange2<uint64_t>& range, uint64_t v_min , uint64_t v_max) {
return DragScalarRange2EXT(label, ImGuiDataType_U64, &range.min(), &range.max(), 0.1f, v_min, v_max);
}
// signed int
template<>
bool DragScalarRange2(const char* label, ScalarRange2<int8_t>& range, int8_t v_min , int8_t v_max) {
return DragScalarRange2EXT(label, ImGuiDataType_S8, &range.min(), &range.max(), 0.1f, v_min, v_max);
}
template<>
bool DragScalarRange2(const char* label, ScalarRange2<int16_t>& range, int16_t v_min , int16_t v_max) {
return DragScalarRange2EXT(label, ImGuiDataType_S16, &range.min(), &range.max(), 0.1f, v_min, v_max);
}
template<>
bool DragScalarRange2(const char* label, ScalarRange2<int32_t>& range, int32_t v_min , int32_t v_max) {
return DragScalarRange2EXT(label, ImGuiDataType_S32, &range.min(), &range.max(), 0.1f, v_min, v_max);
}
template<>
bool DragScalarRange2(const char* label, ScalarRange2<int64_t>& range, int64_t v_min , int64_t v_max) {
return DragScalarRange2EXT(label, ImGuiDataType_S64, &range.min(), &range.max(), 0.1f, v_min, v_max);
}
} // MM::ImGuiWidgets

75
framework/imgui/src/mm/imgui/widgets/scalar_range.hpp Normal file
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#pragma once
#include <mm/scalar_range2.hpp>
#include <imgui/imgui.h>
#include <imgui/imgui_internal.h>
#include <limits>
#include <cstdint>
namespace MM::ImGuiWidgets {
// cedits: this code is copied from DearImGui and modified
// NB: You likely want to specify the ImGuiSliderFlags_AlwaysClamp when using this.
template<typename T>
bool DragScalarRange2EXT(const char* label, ImGuiDataType data_type, T* v_current_min, T* v_current_max, float v_speed = 1.f, T v_min = {}, T v_max = {}, const char* format = NULL, const char* format_max = NULL, ImGuiSliderFlags flags = 0)
{
ImGuiContext& g = *ImGui::GetCurrentContext();
auto* window = g.CurrentWindow;
if (window->SkipItems)
return false;
ImGui::PushID(label);
ImGui::BeginGroup();
ImGui::PushMultiItemsWidths(2, ImGui::CalcItemWidth());
T min_min = (v_min >= v_max) ? std::numeric_limits<T>::min() : v_min;
T min_max = (v_min >= v_max) ? *v_current_max : ImMin(v_max, *v_current_max);
ImGuiSliderFlags min_flags = flags | ((min_min == min_max) ? ImGuiSliderFlags_ReadOnly : 0);
bool value_changed = ImGui::DragScalar("##min", data_type, v_current_min, v_speed, &min_min, &min_max, format, min_flags);
ImGui::PopItemWidth();
ImGui::SameLine(0, g.Style.ItemInnerSpacing.x);
T max_min = (v_min >= v_max) ? *v_current_min : ImMax(v_min, *v_current_min);
T max_max = (v_min >= v_max) ? std::numeric_limits<T>::max() : v_max;
ImGuiSliderFlags max_flags = flags | ((max_min == max_max) ? ImGuiSliderFlags_ReadOnly : 0);
value_changed |= ImGui::DragScalar("##max", data_type, v_current_max, v_speed, &max_min, &max_max, format_max ? format_max : format, max_flags);
ImGui::PopItemWidth();
ImGui::SameLine(0, g.Style.ItemInnerSpacing.x);
ImGui::TextEx(label, ImGui::FindRenderedTextEnd(label));
ImGui::EndGroup();
ImGui::PopID();
return value_changed;
}
// scalar range
template<typename T>
bool DragScalarRange2(const char* label, ScalarRange2<T>& range, T v_min = {}, T v_max = {});
// specializations
// unsigned int
template<>
bool DragScalarRange2(const char* label, ScalarRange2<uint8_t>& range, uint8_t v_min , uint8_t v_max);
template<>
bool DragScalarRange2(const char* label, ScalarRange2<uint16_t>& range, uint16_t v_min , uint16_t v_max);
template<>
bool DragScalarRange2(const char* label, ScalarRange2<uint32_t>& range, uint32_t v_min , uint32_t v_max);
template<>
bool DragScalarRange2(const char* label, ScalarRange2<uint64_t>& range, uint64_t v_min , uint64_t v_max);
// signed int
template<>
bool DragScalarRange2(const char* label, ScalarRange2<int8_t>& range, int8_t v_min , int8_t v_max);
template<>
bool DragScalarRange2(const char* label, ScalarRange2<int16_t>& range, int16_t v_min , int16_t v_max);
template<>
bool DragScalarRange2(const char* label, ScalarRange2<int32_t>& range, int32_t v_min , int32_t v_max);
template<>
bool DragScalarRange2(const char* label, ScalarRange2<int64_t>& range, int64_t v_min , int64_t v_max);
// TODO: float, double
} // MM::ImGuiWidgets