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looper/theme.cpp

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#include "theme.h"
#include "imgui.h"
#include "json/value.h"
#include <cmath>
#include <exception>
#include <numbers>
#include <iostream>
#include <fstream>
#include <json/json.h>
#include <filesystem>
using namespace std::filesystem;
using namespace std::numbers;
const char* Theme::prefPath = NULL;
path Theme::themeDir = path();
std::set<path> Theme::availableThemes = std::set<path>();
ImVec4 change_accent_color(ImVec4 in, float hue) {
if (in.x == in.y && in.y == in.z) {
return in;
}
ImVec4 hsv = in;
ImVec4 out = in;
ImGui::ColorConvertRGBtoHSV(in.x, in.y, in.z, hsv.x, hsv.y, hsv.z);
hsv.x = hue / 360.0f;
ImGui::ColorConvertHSVtoRGB(hsv.x, hsv.y, hsv.z, out.x, out.y, out.z);
return out;
}
bool Theme::ShowEditor(bool* open, Theme* &theme, ImGuiID dockid, int window_width, int window_height) {
static FileBrowser importDialog(false, ImGuiFileBrowserFlags_NoTitleBar|ImGuiFileBrowserFlags_NoMove|ImGuiFileBrowserFlags_NoResize);
static FileBrowser exportDialog(true, ImGuiFileBrowserFlags_NoTitleBar|ImGuiFileBrowserFlags_NoMove|ImGuiFileBrowserFlags_NoResize);
static bool loadOpen = false;
static bool saveAsOpen = false;
ImGui::SetNextWindowDockID(dockid);
ImGui::Begin("Theme Editor", open);
ImGuiStyle& style = theme->style;
ImGui::PushItemWidth(ImGui::GetWindowWidth() * 0.50f);
ImVec2 buttonSize = ImVec2((ImGui::GetWindowWidth() * 0.50f) - (ImGui::GetStyle().WindowPadding.x) - (ImGui::GetStyle().ItemSpacing.x * 0.5f), 0);
if (ImGui::Button("Create light", buttonSize)) {
delete theme;
theme = new Theme(false);
ImGui::PopItemWidth();
ImGui::End();
return true;
}
ImGui::SameLine();
if (ImGui::Button("Create dark", buttonSize)) {
delete theme;
theme = new Theme(true);
ImGui::PopItemWidth();
ImGui::End();
return true;
}
if (ImGui::Button("Import...", buttonSize)) {
importDialog.SetTitle("Import theme...");
importDialog.SetTypeFilters("Theme JSON files", { ".json"});
std::string userdir = std::getenv(
#ifdef _WIN32
"UserProfile"
#else
"HOME"
#endif
);
importDialog.SetPwd(userdir);
importDialog.Open();
}
ImGui::SameLine();
if (ImGui::Button("Export...", buttonSize)) {
exportDialog.SetTitle("Export theme...");
exportDialog.SetTypeFilters("Theme JSON files", { ".json"});
std::string userdir = std::getenv(
#ifdef _WIN32
"UserProfile"
#else
"HOME"
#endif
);
exportDialog.SetPwd(userdir);
exportDialog.Open();
}
if (importDialog.IsOpened()) {
importDialog.SetWindowSize(window_width, window_height);
importDialog.SetWindowPos(0, 0);
}
if (exportDialog.IsOpened()) {
exportDialog.SetWindowSize(window_width, window_height);
exportDialog.SetWindowPos(0, 0);
}
importDialog.Display();
exportDialog.Display();
if (!theme->file_path.empty()) {
if (ImGui::Button("Revert", buttonSize)) {
string file_path_backup = theme->file_path;
delete theme;
theme = new Theme(file_path_backup);
ImGui::PopItemWidth();
ImGui::End();
return true;
}
ImGui::SameLine();
if (ImGui::Button("Save", buttonSize)) {
theme->Save(theme->file_path);
}
}
if (ImGui::Button("Load...", buttonSize)) {
loadOpen = true;
}
ImGui::SameLine();
if (ImGui::Button("Save as...", buttonSize)) {
saveAsOpen = true;
}
// Simplified Settings (expose floating-pointer border sizes as boolean representing 0.0f or 1.0f)
if (ImGui::SliderFloat("FrameRounding", &style.FrameRounding, 0.0f, 12.0f, "%.0f"))
style.GrabRounding = style.FrameRounding; // Make GrabRounding always the same value as FrameRounding
{ bool border = (style.WindowBorderSize > 0.0f); if (ImGui::Checkbox("WindowBorder", &border)) { style.WindowBorderSize = border ? 1.0f : 0.0f; } }
ImGui::SameLine();
{ bool border = (style.FrameBorderSize > 0.0f); if (ImGui::Checkbox("FrameBorder", &border)) { style.FrameBorderSize = border ? 1.0f : 0.0f; } }
ImGui::SameLine();
{ bool border = (style.PopupBorderSize > 0.0f); if (ImGui::Checkbox("PopupBorder", &border)) { style.PopupBorderSize = border ? 1.0f : 0.0f; } }
ImGui::Separator();
if (ImGui::BeginTabBar("##tabs", ImGuiTabBarFlags_None))
{
if (ImGui::BeginTabItem("Sizes"))
{
ImGui::SeparatorText("Sizing");
ImGui::SliderFloat2("WindowPadding", (float*)&style.WindowPadding, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("FramePadding", (float*)&style.FramePadding, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("CellPadding", (float*)&style.CellPadding, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("ItemSpacing", (float*)&style.ItemSpacing, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("ItemInnerSpacing", (float*)&style.ItemInnerSpacing, 0.0f, 20.0f, "%.0f");
//ImGui::SliderFloat2("TouchExtraPadding", (float*)&style.TouchExtraPadding, 0.0f, 10.0f, "%.0f");
//ImGui::SliderFloat("IndentSpacing", &style.IndentSpacing, 0.0f, 30.0f, "%.0f");
ImGui::SliderFloat("ScrollbarSize", &style.ScrollbarSize, 1.0f, 20.0f, "%.0f");
ImGui::SliderFloat("GrabMinSize", &style.GrabMinSize, 1.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("SeparatorTextPadding", (float*)&style.SeparatorTextPadding, 0.0f, 40.0f, "%.0f");
ImGui::SeparatorText("Borders");
ImGui::SliderFloat("WindowBorderSize", &style.WindowBorderSize, 0.0f, 1.0f, "%.0f");
ImGui::SliderFloat("ChildBorderSize", &style.ChildBorderSize, 0.0f, 1.0f, "%.0f");
ImGui::SliderFloat("PopupBorderSize", &style.PopupBorderSize, 0.0f, 1.0f, "%.0f");
ImGui::SliderFloat("FrameBorderSize", &style.FrameBorderSize, 0.0f, 1.0f, "%.0f");
ImGui::SliderFloat("TabBorderSize", &style.TabBorderSize, 0.0f, 1.0f, "%.0f");
ImGui::SliderFloat("SeparatorTextBorderSize", &style.SeparatorTextBorderSize, 0.0f, 10.0f, "%.0f");
ImGui::SeparatorText("Rounding");
ImGui::SliderFloat("WindowRounding", &style.WindowRounding, 0.0f, 12.0f, "%.0f");
ImGui::SliderFloat("ChildRounding", &style.ChildRounding, 0.0f, 12.0f, "%.0f");
ImGui::SliderFloat("FrameRounding", &style.FrameRounding, 0.0f, 12.0f, "%.0f");
ImGui::SliderFloat("PopupRounding", &style.PopupRounding, 0.0f, 12.0f, "%.0f");
ImGui::SliderFloat("ScrollbarRounding", &style.ScrollbarRounding, 0.0f, 12.0f, "%.0f");
ImGui::SliderFloat("GrabRounding", &style.GrabRounding, 0.0f, 12.0f, "%.0f");
ImGui::SliderFloat("TabRounding", &style.TabRounding, 0.0f, 12.0f, "%.0f");
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Colors"))
{
static ImGuiTextFilter filter;
filter.Draw("Filter colors", ImGui::GetFontSize() * 16);
static ImGuiColorEditFlags alpha_flags = 0;
if (ImGui::RadioButton("Opaque", alpha_flags == ImGuiColorEditFlags_None)) { alpha_flags = ImGuiColorEditFlags_None; } ImGui::SameLine();
if (ImGui::RadioButton("Alpha", alpha_flags == ImGuiColorEditFlags_AlphaPreview)) { alpha_flags = ImGuiColorEditFlags_AlphaPreview; } ImGui::SameLine();
if (ImGui::RadioButton("Both", alpha_flags == ImGuiColorEditFlags_AlphaPreviewHalf)) { alpha_flags = ImGuiColorEditFlags_AlphaPreviewHalf; }
ImGui::BeginChild("##colors", ImVec2(0, 0), true, ImGuiWindowFlags_AlwaysVerticalScrollbar | ImGuiWindowFlags_AlwaysHorizontalScrollbar | ImGuiWindowFlags_NavFlattened);
ImGui::PushItemWidth(-160);
for (int i = 0; i < ImGuiCol_COUNT; i++)
{
const char* name = ImGui::GetStyleColorName(i);
if (!filter.PassFilter(name))
continue;
ImGui::PushID(i);
bool hueEnabled = theme->HueEnabledColors.contains(i);
if (ImGui::Checkbox("Accent", &hueEnabled)) {
if (hueEnabled) {
theme->HueEnabledColors.insert(i);
} else {
theme->HueEnabledColors.erase(i);
}
}
ImGui::SameLine();
ImGui::ColorEdit4("##color", (float*)&style.Colors[i], ImGuiColorEditFlags_AlphaBar | alpha_flags | ImGuiColorEditFlags_DisplayHSV);
ImGui::SameLine(0.0f, style.ItemInnerSpacing.x);
ImGui::TextUnformatted(name);
ImGui::PopID();
}
ImGui::PopItemWidth();
ImGui::EndChild();
ImGui::EndTabItem();
}
ImGui::EndTabBar();
}
ImGui::PopItemWidth();
ImGui::End();
if (importDialog.HasSelected()) {
path selected_path = importDialog.GetSelected();
path filename = selected_path.filename();
copy_file(selected_path, theme->themeDir / filename);
Theme::updateAvailableThemes();
importDialog.ClearSelected();
}
if (exportDialog.HasSelected()) {
path selected_path = exportDialog.GetSelected();
theme->Save(selected_path);
exportDialog.ClearSelected();
}
if (loadOpen) {
ImGui::OpenPopup("Load...");
ImGui::SetNextWindowPos(ImVec2(0, 0));
ImGui::SetNextWindowSize(ImVec2(window_width, window_height));
if (ImGui::BeginPopupModal("Load...", nullptr, ImGuiWindowFlags_Modal|ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoResize)) {
static path selectedThemePath;
static char filter[1024] = {0};
ImGui::Text("Filter:"); ImGui::SameLine();
ImGui::SetNextItemWidth(ImGui::GetWindowWidth() - ImGui::GetCursorPosX() - ImGui::GetStyle().WindowPadding.x);
ImGui::InputText("##FilterInput", filter, 1024);
ImGui::Text("Available themes...");
if (ImGui::BeginListBox("##Themes", ImVec2(ImGui::GetWindowWidth() - (ImGui::GetStyle().WindowPadding.x * 2.0f), -ImGui::GetTextLineHeightWithSpacing() - ImGui::GetStyle().WindowPadding.y))) {
for (auto themePath : Theme::availableThemes) {
if (themePath.stem().string().starts_with(filter)) {
const bool is_selected = themePath == selectedThemePath;
if (ImGui::Selectable(themePath.stem().generic_string().c_str(), is_selected)) {
selectedThemePath = themePath;
}
if (is_selected) {
ImGui::SetItemDefaultFocus();
}
}
}
ImGui::EndListBox();
}
if (ImGui::Button("Load")) {
if (!selectedThemePath.empty()) {
filter[0] = '\0';
loadOpen = false;
delete theme;
theme = new Theme(selectedThemePath);
selectedThemePath = path();
ImGui::EndPopup();
return true;
}
}
ImGui::SameLine();
if (ImGui::Button("Cancel")) {
selectedThemePath = path();
filter[0] = '\0';
loadOpen = false;
}
ImGui::EndPopup();
}
}
if (saveAsOpen) {
ImGui::OpenPopup("Save as...");
ImGui::SetNextWindowPos(ImVec2(0, 0));
ImGui::SetNextWindowSize(ImVec2(window_width, window_height));
if (ImGui::BeginPopupModal("Save as...", nullptr, ImGuiWindowFlags_Modal|ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoResize)) {
static char selectedThemeName[1024] = {0};
static char filter[1024] = {0};
ImGui::Text("Filter:"); ImGui::SameLine();
ImGui::SetNextItemWidth(ImGui::GetWindowWidth() - ImGui::GetCursorPosX() - ImGui::GetStyle().WindowPadding.x);
ImGui::InputText("##FilterInput", filter, 1024);
ImGui::Text("Available themes...");
if (ImGui::BeginListBox("##Themes", ImVec2(ImGui::GetWindowWidth() - (ImGui::GetStyle().WindowPadding.x * 2.0f), -ImGui::GetFrameHeightWithSpacing() - ImGui::GetTextLineHeightWithSpacing() - ImGui::GetStyle().WindowPadding.y))) {
for (auto themePath : Theme::availableThemes) {
if (themePath.stem().string().starts_with(filter)) {
const bool is_selected = strcmp(themePath.stem().generic_string().c_str(), selectedThemeName) == 0;
if (ImGui::Selectable(themePath.stem().generic_string().c_str(), is_selected)) {
strncpy(selectedThemeName, themePath.stem().generic_string().c_str(), 1024);
}
if (is_selected) {
ImGui::SetItemDefaultFocus();
}
}
}
ImGui::EndListBox();
}
ImGui::SetNextItemWidth(ImGui::GetWindowWidth() - (ImGui::GetStyle().WindowPadding.x * 2.0f));
ImGui::InputText("Theme name: ", selectedThemeName, 1024);
if (ImGui::Button("Save")) {
path selectedThemePath(selectedThemeName);
if (!selectedThemePath.empty() && !selectedThemePath.is_absolute()) {
selectedThemeName[0] = '\0'; // This empties the string by taking advantage of C strings.
filter[0] = '\0';
saveAsOpen = false;
theme->Save(Theme::themeDir / selectedThemePath.replace_extension(".json"));
theme->file_path = selectedThemePath.generic_string();
}
}
ImGui::SameLine();
if (ImGui::Button("Cancel")) {
selectedThemeName[0] = '\0'; // Same as above
filter[0] = '\0';
saveAsOpen = false;
}
ImGui::EndPopup();
}
}
return false;
}
void Theme::Apply(float hue) {
ImGuiStyle& actual_style = ImGui::GetStyle();
actual_style = style;
for (int i = 0; i < ImGuiCol_COUNT; i++)
{
if (HueEnabledColors.contains(i)) {
actual_style.Colors[i] = change_accent_color(style.Colors[i], hue);
}
}
ImGuiIO& io = ImGui::GetIO();
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
actual_style.WindowRounding = 0.0f;
actual_style.Colors[ImGuiCol_WindowBg].w = 1.0f;
}
}
void Theme::Save(string path) {
printf("Saving theme to %s...\n", path.c_str());
{
Json::Value config;
std::ofstream stream;
stream.open(path);
{
Json::Value rounding;
rounding["Frame"] = style.FrameRounding;
rounding["Window"] = style.WindowRounding;
rounding["Child"] = style.ChildRounding;
rounding["Popup"] = style.PopupRounding;
rounding["Scrollbar"] = style.ScrollbarRounding;
rounding["Grab"] = style.GrabRounding;
rounding["Tab"] = style.TabRounding;
config["rounding"] = rounding;
}
{
Json::Value sizing;
sizing["FrameX"] = style.FramePadding.x;
sizing["FrameY"] = style.FramePadding.y;
sizing["WindowX"] = style.WindowPadding.x;
sizing["WindowY"] = style.WindowPadding.y;
sizing["CellX"] = style.CellPadding.x;
sizing["CellY"] = style.CellPadding.y;
sizing["SeparatorTextX"] = style.SeparatorTextPadding.x;
sizing["SeparatorTextY"] = style.SeparatorTextPadding.y;
sizing["ItemSpacingX"] = style.ItemSpacing.x;
sizing["ItemSpacingY"] = style.ItemSpacing.y;
sizing["Scrollbar"] = style.ScrollbarSize;
sizing["Grab"] = style.GrabMinSize;
config["sizing"] = sizing;
}
{
Json::Value borders;
borders["Frame"] = style.FrameBorderSize;
borders["Window"] = style.WindowBorderSize;
borders["Child"] = style.ChildBorderSize;
borders["Popup"] = style.PopupBorderSize;
borders["Tab"] = style.TabBorderSize;
borders["Tab"] = style.TabBorderSize;
borders["SeparatorText"] = style.SeparatorTextBorderSize;
config["borders"] = borders;
}
{
Json::Value colors;
for (int i = 0; i < ImGuiCol_COUNT; i++)
{
const char* name = ImGui::GetStyleColorName(i);
ImVec4 color = style.Colors[i];
Json::Value colorValue;
colorValue["r"] = color.x;
colorValue["g"] = color.y;
colorValue["b"] = color.z;
colorValue["a"] = color.w;
colorValue["ConvertToAccent"] = HueEnabledColors.contains(i);
colors[name] = colorValue;
}
config["colors"] = colors;
}
stream << config;
stream.close();
}
updateAvailableThemes();
}
void Theme::Save(path path) {
Save((string)path.string());
}
void Theme::updateAvailableThemes() {
themeDir = path(prefPath) / path("themes");
create_directories(themeDir);
availableThemes.clear();
for (auto const& dir_entry : directory_iterator(themeDir)) {
if (dir_entry.is_regular_file()) {
if (dir_entry.path().extension().string() == ".json") {
availableThemes.insert(dir_entry.path());
}
}
}
}
Theme::Theme() {
if (prefPath == NULL) {
throw std::exception();
}
updateAvailableThemes();
}
Theme::Theme(bool dark) : Theme() {
if (dark) {
ImGui::StyleColorsDark(&style);
} else {
ImGui::StyleColorsLight(&style);
style.FrameBorderSize = 1;
}
for (int i = 0; i < ImGuiCol_COUNT; i++)
{
ImVec4 color = style.Colors[i];
if (color.x != color.y || color.y != color.z) {
HueEnabledColors.insert(i);
}
}
style.FrameRounding = 12;
style.GrabRounding = 12;
style.WindowRounding = 12;
}
Theme::Theme(string path) : Theme() {
Json::Value config;
std::ifstream stream;
stream.open(path);
if (stream.is_open()) {
stream >> config;
if (config.isMember("rounding")) {
Json::Value rounding = config["rounding"];
style.FrameRounding = rounding["Frame"].asFloat();
style.WindowRounding = rounding["Window"].asFloat();
style.ChildRounding = rounding["Child"].asFloat();
style.PopupRounding = rounding["Popup"].asFloat();
style.ScrollbarRounding = rounding["Scrollbar"].asFloat();
style.GrabRounding = rounding["Grab"].asFloat();
style.TabRounding = rounding["Tab"].asFloat();
}
if (config.isMember("sizing")) {
Json::Value sizing = config["sizing"];
style.FramePadding.x = sizing["FrameX"].asFloat();
style.FramePadding.y = sizing["FrameY"].asFloat();
style.WindowPadding.x = sizing["WindowX"].asFloat();
style.WindowPadding.y = sizing["WindowY"].asFloat();
style.CellPadding.x = sizing["CellX"].asFloat();
style.CellPadding.y = sizing["CellY"].asFloat();
style.SeparatorTextPadding.x = sizing["SeparatorTextX"].asFloat();
style.SeparatorTextPadding.y = sizing["SeparatorTextY"].asFloat();
style.ItemSpacing.x = sizing["ItemSpacingX"].asFloat();
style.ItemSpacing.y = sizing["ItemSpacingY"].asFloat();
style.ScrollbarSize = sizing["Scrollbar"].asFloat();
style.GrabMinSize = sizing["Grab"].asFloat();
}
if (config.isMember("borders")) {
Json::Value borders = config["borders"];
style.FrameBorderSize = borders["Frame"].asFloat();
style.WindowBorderSize = borders["Window"].asFloat();
style.ChildBorderSize = borders["Child"].asFloat();
style.PopupBorderSize = borders["Popup"].asFloat();
style.TabBorderSize = borders["Tab"].asFloat();
if (borders.isMember("SeparatorText")) {
style.SeparatorTextBorderSize = borders["SeparatorText"].asFloat();
}
}
if (config.isMember("colors")) {
Json::Value colors = config["colors"];
for (int i = 0; i < ImGuiCol_COUNT; i++)
{
const char* name = ImGui::GetStyleColorName(i);
if (colors.isMember(name)) {
Json::Value colorValue = colors[name];
ImVec4 color = ImVec4(colorValue["r"].asFloat(), colorValue["g"].asFloat(), colorValue["b"].asFloat(), colorValue["a"].asFloat());
bool hueShifted = colorValue["ConvertToAccent"].asBool();
style.Colors[i] = color;
if (hueShifted) {
HueEnabledColors.insert(i);
}
}
}
}
stream.close();
}
file_path = path;
}
Theme::Theme(path path) : Theme(path.string()) {
}
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