SliderInt with reversed range cannot reach min value

[MultiPain]

Version: 1.77
Branch: master

Back-end/Renderer/Compiler/OS

Back-ends: Custom engine
Operating System: Windows 10

sizeof(size_t): 4, sizeof(ImDrawIdx): 2, sizeof(ImDrawVert): 20
define: __cplusplus=201402
define: _WIN32
define: __MINGW32__
define: __GNUC__=7

My Issue/Question:

Hi, im making a lua binding for Gideros mobile game engine and recently I discovered that if min slider value is greater than max then int slider cant reach min value. Ive also added a custom slider, but it 99.99% identical to built-in slider. The difference only in drawing knob :)

Screenshots/Video

As you can see, slider cant reach 0 for some reason.

static int v = 0;
static float f = 0.0f;

ImGui::SliderInt("int slider", &v, 0, 100);
ImGui::SliderFloat("float slider", &f, 0.0f, 100.0f, "%.0f");

ImGui::PushID(1);
ImGui::SliderInt("int slider", &v, 100, 0);
ImGui::SliderFloat("float slider", &f, 100.0f, 0.0f, "%.0f");
ImGui::PopID();

[MultiPain]

Also, "ImGuiSliderFlags_ClampOnInput" does not work in this situation.
I have fixed it by my own like that:

template<typename T>
static bool DataTypeClampT(T* v, const T* v_min, const T* v_max)
{

    // Clamp, both sides are optional, return true if modified
    if (*v_min < *v_max)
    {
        if (v_min && *v < *v_min) { *v = *v_min; return true; }
        if (v_max && *v > *v_max) { *v = *v_max; return true; }
        return false;
    }
    else
    {
        if (v_min && *v > *v_min) { *v = *v_min; return true; }
        if (v_max && *v < *v_max) { *v = *v_max; return true; }
        return false;
    }
}

[ocornut]

recently I discovered that if min slider value is greater than max then int slider cant reach min value.

Now fixed by @rokups with b2039aa. Note that reverse slider weren't really documented until now (added some examples in demo).

Will be looking at the clamping next.

I have fixed it by my own like that:

 // Clamp, both sides are optional, return true if modified
 if (*v_min < *v_max)
 {

That's a crash if either bounds are disabled.

[ocornut]

Also, "ImGuiSliderFlags_ClampOnInput" does not work in this situation.

This is now fixed by 36af398