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ColorEdit4: hovering the color button shows correct alpha (fix #373)

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This commit is contained in:
ocornut 2015-10-18 16:24:44 +01:00
parent 5b7a2149fc
commit 465e6839a4
1 changed files with 14 additions and 12 deletions
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26
imgui.cpp
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@ -761,6 +761,8 @@ void ImGuiIO::AddInputCharactersUTF8(const char* utf8_chars)
// HELPERS
//-----------------------------------------------------------------------------
#define IM_F32_TO_INT8(_VAL) ((int)((_VAL) * 255.0f + 0.5f))
#define IM_INT_MIN (-2147483647-1)
#define IM_INT_MAX (2147483647)
@ -1083,10 +1085,11 @@ ImVec4 ImGui::ColorConvertU32ToFloat4(ImU32 in)
ImU32 ImGui::ColorConvertFloat4ToU32(const ImVec4& in)
{
ImU32 out = ((ImU32)(ImSaturate(in.x)*255.f+0.5f));
out |= ((ImU32)(ImSaturate(in.y)*255.f+0.5f) << 8);
out |= ((ImU32)(ImSaturate(in.z)*255.f+0.5f) << 16);
out |= ((ImU32)(ImSaturate(in.w)*255.f+0.5f) << 24);
ImU32 out;
out = ((ImU32)IM_F32_TO_INT8(ImSaturate(in.x)));
out |= ((ImU32)IM_F32_TO_INT8(ImSaturate(in.y))) << 8;
out |= ((ImU32)IM_F32_TO_INT8(ImSaturate(in.z))) << 16;
out |= ((ImU32)IM_F32_TO_INT8(ImSaturate(in.w))) << 24;
return out;
}
@ -8360,13 +8363,7 @@ bool ImGui::ColorButton(const ImVec4& col, bool small_height, bool outline_borde
RenderFrame(bb.Min, bb.Max, window->Color(col), outline_border, style.FrameRounding);
if (hovered)
{
int ix = (int)(col.x * 255.0f + 0.5f);
int iy = (int)(col.y * 255.0f + 0.5f);
int iz = (int)(col.z * 255.0f + 0.5f);
int iw = (int)(col.w * 255.0f + 0.5f);
ImGui::SetTooltip("Color:\n(%.2f,%.2f,%.2f,%.2f)\n#%02X%02X%02X%02X", col.x, col.y, col.z, col.w, ix, iy, iz, iw);
}
ImGui::SetTooltip("Color:\n(%.2f,%.2f,%.2f,%.2f)\n#%02X%02X%02X%02X", col.x, col.y, col.z, col.w, IM_F32_TO_INT8(col.x), IM_F32_TO_INT8(col.y), IM_F32_TO_INT8(col.z), IM_F32_TO_INT8(col.z));
return pressed;
}
@ -8408,7 +8405,7 @@ bool ImGui::ColorEdit4(const char* label, float col[4], bool alpha)
if (edit_mode == ImGuiColorEditMode_HSV)
ImGui::ColorConvertRGBtoHSV(f[0], f[1], f[2], f[0], f[1], f[2]);
int i[4] = { (int)(f[0] * 255.0f + 0.5f), (int)(f[1] * 255.0f + 0.5f), (int)(f[2] * 255.0f + 0.5f), (int)(f[3] * 255.0f + 0.5f) };
int i[4] = { IM_F32_TO_INT8(f[0]), IM_F32_TO_INT8(f[1]), IM_F32_TO_INT8(f[2]), IM_F32_TO_INT8(f[3]) };
int components = alpha ? 4 : 3;
bool value_changed = false;
@ -8482,6 +8479,10 @@ bool ImGui::ColorEdit4(const char* label, float col[4], bool alpha)
if (ImGui::ColorButton(col_display))
g.ColorEditModeStorage.SetInt(id, (edit_mode + 1) % 3); // Don't set local copy of 'edit_mode' right away!
// Recreate our own tooltip over's ColorButton() one because we want to display correct alpha here
if (ImGui::IsItemHovered())
ImGui::SetTooltip("Color:\n(%.2f,%.2f,%.2f,%.2f)\n#%08X", col[0], col[1], col[2], col[3], IM_F32_TO_INT8(col[0]), IM_F32_TO_INT8(col[1]), IM_F32_TO_INT8(col[2]), IM_F32_TO_INT8(col[3]));
if (window->DC.ColorEditMode == ImGuiColorEditMode_UserSelectShowButton)
{
ImGui::SameLine(0, style.ItemInnerSpacing.x);
@ -8950,6 +8951,7 @@ void ImGui::Value(const char* prefix, float v, const char* float_format)
}
}
// FIXME: May want to remove those helpers?
void ImGui::Color(const char* prefix, const ImVec4& v)
{
ImGui::Text("%s: (%.2f,%.2f,%.2f,%.2f)", prefix, v.x, v.y, v.z, v.w);