spicetools/overlay/imgui/extensions.cpp

71 lines
2.3 KiB
C++

#include "extensions.h"
#include <cmath>
#include "external/imgui/imgui.h"
namespace ImGui {
void HelpMarker(const char* desc) {
ImGui::TextDisabled("(?)");
if (ImGui::IsItemHovered()) {
ImGui::BeginTooltip();
ImGui::PushTextWrapPos(ImGui::GetFontSize() * 35.0f);
ImGui::TextUnformatted(desc);
ImGui::PopTextWrapPos();
ImGui::EndTooltip();
}
}
void WarnMarker(const char* desc, const char* warn) {
ImGui::PushStyleColor(ImGuiCol_TextDisabled, ImVec4(1.f, 1.f, 0.f, 1.f));
ImGui::TextDisabled("(!)");
ImGui::PopStyleColor();
if (ImGui::IsItemHovered()) {
ImGui::BeginTooltip();
ImGui::PushTextWrapPos(ImGui::GetFontSize() * 35.0f);
if (desc) {
ImGui::TextUnformatted(desc);
ImGui::TextUnformatted("");
}
ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(1.f, 1.f, 0.f, 1.f));
if (warn) {
ImGui::TextUnformatted("WARNING:");
ImGui::TextUnformatted(warn);
}
ImGui::PopStyleColor();
ImGui::PopTextWrapPos();
ImGui::EndTooltip();
}
}
void DummyMarker() {
// dummy marker that is the same width as HelpMarker/WarnMarker.
ImGui::Dummy(ImVec2(22, 0));
}
void Knob(float fraction, float size, float thickness, float pos_x, float pos_y) {
// get values
auto radius = size * 0.5f;
auto pos = ImGui::GetCursorScreenPos();
if (pos_x >= 0) pos.x = pos_x;
if (pos_y >= 0) pos.y = pos_y;
auto center = ImVec2(pos.x + radius, pos.y + radius);
auto draw_list = ImGui::GetWindowDrawList();
// dummy for spacing knob with other content
if (pos_x < 0 && pos_y < 0) {
ImGui::Dummy(ImVec2(size, size));
}
// draw knob
auto angle = (fraction + 0.25f) * (3.141592f * 2);
draw_list->AddCircleFilled(center, radius, ImGui::GetColorU32(ImGuiCol_FrameBg), 16);
draw_list->AddLine(center,
ImVec2(center.x + cosf(angle) * radius, center.y + sinf(angle) * radius),
ImGui::GetColorU32(ImGuiCol_PlotHistogram),
thickness);
}
}