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ImColor::HSV() helper + color buttons demo

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This commit is contained in:
ocornut 2015-01-31 17:15:07 +00:00
parent 8d1583d611
commit 68bad703ee
2 changed files with 21 additions and 5 deletions
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13
imgui.cpp
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@ -7808,6 +7808,19 @@ void ImGui::ShowTestWindow(bool* opened)
ImGui::RadioButton("radio b", &e, 1); ImGui::SameLine();
ImGui::RadioButton("radio c", &e, 2);
// Color buttons, demonstrate using PushID() to add unique identifier in the ID stack, and changing style.
for (int i = 0; i < 7; i++)
{
if (i > 0) ImGui::SameLine();
ImGui::PushID(i);
ImGui::PushStyleColor(ImGuiCol_Button, ImColor::HSV(i/7.0f, 0.6f, 0.6f));
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImColor::HSV(i/7.0f, 0.7f, 0.7f));
ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImColor::HSV(i/7.0f, 0.8f, 0.8f));
ImGui::Button("Click");
ImGui::PopStyleColor(3);
ImGui::PopID();
}
ImGui::Text("Hover me");
if (ImGui::IsItemHovered())
ImGui::SetTooltip("I am a tooltip");

5
imgui.h
View File

@ -704,10 +704,13 @@ struct ImColor
ImVec4 Value;
ImColor(int r, int g, int b, int a = 255) { Value.x = r / 255.0f; Value.y = g / 255.0f; Value.z = b / 255.0f; Value.w = a / 255.0f; }
ImColor(const ImVec4& col) { Value = col; }
ImColor(float r, float g, float b, float a = 1.0f) { Value.x = r; Value.y = g; Value.z = b; Value.w = a; }
ImColor(const ImVec4& col) { Value = col; }
operator ImU32() const { return ImGui::ColorConvertFloat4ToU32(Value); }
operator ImVec4() const { return Value; }
static ImColor HSV(float h, float s, float v, float a = 1.0f) { float r,g,b; ImGui::ColorConvertHSVtoRGB(h, s, v, r, g, b); return ImColor(r,g,b,a); }
};
//-----------------------------------------------------------------------------