imgui_helpers.h

Go to the documentation of this file.

#pragma once
 
#include "ThirdParty/DearImGui.h"
 
#include <Common/assertion.h>
#include <Utility/TSpan.h>
#include <Math/TVector2.h>
#include <Math/TVector4.h>
 
#include <cstddef>
#include <string_view>
#include <vector>
 
namespace ph::editor::imgui
{
 
void text_unformatted(std::string_view text);
 
void image_with_fallback(
    ImTextureID textureID,
    const math::Vector2F& sizePx,
    const math::Vector4F& tintColorRGBA = math::Vector4F(1, 1, 1, 1),
    const math::Vector4F& borderColorRGBA = math::Vector4F(0, 0, 0, 0));
 
bool image_button_with_fallback(
    const char* strId,
    ImTextureID textureID,
    const math::Vector2F& sizePx,
    const math::Vector4F& backgroundColorRGBA = math::Vector4F(0, 0, 0, 0),
    const math::Vector4F& tintColorRGBA = math::Vector4F(1, 1, 1, 1));
 
void copy_to(TSpan<char> dstBuffer, std::string_view srcStr);
 
class StringCache final
{
public:
    StringCache();
    explicit StringCache(std::size_t cacheSize);
 
    void fixedCopy(TSpanView<char> inputContent);
 
    void resizableCopy(TSpanView<char> inputContent);
 
    bool inputText(
        const char* idName,
        ImGuiInputTextFlags flags = 0);
 
    bool inputText(
        const char* idName,
        TSpanView<char> inputContent,
        ImGuiInputTextFlags flags = 0);
    
    void clear();
 
    TSpan<char> getData();
    TSpanView<char> getData() const;
 
    char* getContent();
    const char* getContent() const;
 
    bool isEmpty() const;
 
 
 
private:
    std::vector<char> m_cache;
};
 
inline void StringCache::clear()
{
    PH_ASSERT(!m_cache.empty());
    m_cache.front() = '\0';
}
 
inline TSpan<char> StringCache::getData()
{
    return m_cache;
}
 
inline TSpanView<char> StringCache::getData() const
{
    return m_cache;
}
 
inline char* StringCache::getContent()
{
    return m_cache.data();
}
 
inline const char* StringCache::getContent() const
{
    return m_cache.data();
}
 
inline bool StringCache::isEmpty() const
{
    return !m_cache.empty() && m_cache.front() != '\0';
}
 
}// end ph::editor::imgui