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Code Releases Wiki Activity

Demo: custom ColorPicker popup example (#346)

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omar 2017-07-30 17:37:28 +08:00
parent 3ffcc72f98
commit f040547a5f
1 changed files with 39 additions and 0 deletions
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39
imgui_demo.cpp
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@ -682,6 +682,45 @@ void ImGui::ShowTestWindow(bool* p_open)
ImGui::SameLine(); ShowHelpMarker("With the ImGuiColorEditFlags_NoInputs flag you can hide all the slider/text inputs.\nWith the ImGuiColorEditFlags_NoLabel flag you can pass a non-empty label which will only be used for the tooltip and picker popup."); ImGui::SameLine(); ShowHelpMarker("With the ImGuiColorEditFlags_NoInputs flag you can hide all the slider/text inputs.\nWith the ImGuiColorEditFlags_NoLabel flag you can pass a non-empty label which will only be used for the tooltip and picker popup.");
ImGui::ColorEdit4("MyColor##3", (float*)&color, ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoLabel | alpha_preview_flags); ImGui::ColorEdit4("MyColor##3", (float*)&color, ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoLabel | alpha_preview_flags);
ImGui::Text("Color button with Custom Picker Popup:");
bool open_popup = ImGui::ColorButton("MyColor##3b", color, alpha_preview_flags);
static ImVec4 backup_color;
ImGui::SameLine();
open_popup |= ImGui::Button("Palette");
if (open_popup)
{
ImGui::OpenPopup("mypicker");
backup_color = color;
}
if (ImGui::BeginPopup("mypicker"))
{
ImGui::Text("MY FANCY COLOR PICKER!");
ImGui::Separator();
ImGui::ColorPicker4("##picker", (float*)&color, alpha_preview_flags | ImGuiColorEditFlags_NoSidePreview | ImGuiColorEditFlags_NoColorSquare);
ImGui::SameLine();
ImGui::BeginGroup();
ImGui::Text("Current");
ImGui::ColorButton("##current", color, ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_AlphaBar | ImGuiColorEditFlags_AlphaPreview, ImVec2(60,40));
ImGui::Text("Previous");
if (ImGui::ColorButton("##previous", backup_color, ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_AlphaPreview, ImVec2(60,40)))
color = backup_color;
ImGui::Separator();
ImGui::Text("Palette");
for (int n = 0; n < 32; n++)
{
ImGui::PushID(n);
if ((n % 8) != 0)
ImGui::SameLine(0.0f, ImGui::GetStyle().ItemSpacing.y);
ImVec4 dummy_palette_col;
ImGui::ColorConvertHSVtoRGB(n / 31.0f, 0.8f, 0.8f, dummy_palette_col.x, dummy_palette_col.y, dummy_palette_col.z);
if (ImGui::ColorButton("##palette", dummy_palette_col, ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_NoTooltip, ImVec2(20,20)))
color = ImVec4(dummy_palette_col.x, dummy_palette_col.y, dummy_palette_col.z, color.w); // Preserve alpha!
ImGui::PopID();
}
ImGui::EndGroup();
ImGui::EndPopup();
}
ImGui::Text("Color button only:"); ImGui::Text("Color button only:");
ImGui::ColorButton("MyColor##3b", *(ImVec4*)&color, alpha_preview_flags, ImVec2(80,80)); ImGui::ColorButton("MyColor##3b", *(ImVec4*)&color, alpha_preview_flags, ImVec2(80,80));