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Added theme system

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This commit is contained in:
Ryzerth
2021-06-23 21:45:38 +02:00
parent 94fae2135d
commit 26079dba0a
21 changed files with 466 additions and 234 deletions
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48
core/src/gui/theme_manager.cpp
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@ -6,6 +6,22 @@
#include <fstream>
bool ThemeManager::loadThemesFromDir(std::string path) {
// TEST JUST TO DUMP THE ORIGINAL THEME
auto& style = ImGui::GetStyle();
ImVec4* colors = style.Colors;
printf("\n\n");
for (auto [name, id] : IMGUI_COL_IDS) {
ImVec4 col = colors[id];
uint8_t r = 255 - (col.x * 255.0f);
uint8_t g = 255 - (col.y * 255.0f);
uint8_t b = 255 - (col.z * 255.0f);
uint8_t a = col.w * 255.0f;
printf("\"%s\": \"#%02X%02X%02X%02X\",\n", name.c_str(), r, g, b, a);
}
printf("\n\n");
if (!std::filesystem::is_directory(path)) {
spdlog::error("Theme directory doesn't exist: {0}", path);
return false;
@ -48,6 +64,11 @@ bool ThemeManager::loadTheme(std::string path) {
}
std::string name = data["name"];
if (themes.find(name) != themes.end()) {
spdlog::error("A theme named '{0}' already exists", name);
return false;
}
// Load theme author if available
if (data.contains("author")) {
if (!data["author"].is_string()) {
@ -62,6 +83,15 @@ bool ThemeManager::loadTheme(std::string path) {
for (auto const& [param, val] : params) {
if (param == "name" || param == "author") { continue; }
// Exception for non-imgu colors
if (param == "WaterfallBackground" || param == "ClearColor") {
if (val[0] != '#' || !std::all_of(val.begin() + 1, val.end(), ::isxdigit) || val.length() != 9) {
spdlog::error("Theme {0} contains invalid {1} field. Expected hex RGBA color", path, param);
return false;
}
continue;
}
bool isValid = false;
// If param is a color, check that it's a valid RGBA hex value
@ -110,6 +140,18 @@ bool ThemeManager::applyTheme(std::string name) {
for (auto const& [param, val] : params) {
if (param == "name" || param == "author") { continue; }
if (param == "WaterfallBackground") {
decodeRGBA(val, ret);
waterfallBg = ImVec4((float)ret[0]/255.0f, (float)ret[1]/255.0f, (float)ret[2]/255.0f, (float)ret[3]/255.0f);
continue;
}
if (param == "ClearColor") {
decodeRGBA(val, ret);
clearColor = ImVec4((float)ret[0]/255.0f, (float)ret[1]/255.0f, (float)ret[2]/255.0f, (float)ret[3]/255.0f);
continue;
}
// If param is a color, check that it's a valid RGBA hex value
if (IMGUI_COL_IDS.find(param) != IMGUI_COL_IDS.end()) {
decodeRGBA(val, ret);
@ -132,6 +174,12 @@ bool ThemeManager::decodeRGBA(std::string str, uint8_t out[4]) {
return true;
}
std::vector<std::string> ThemeManager::getThemeNames() {
std::vector<std::string> names;
for (auto [name, theme] : themes) { names.push_back(name); }
return names;
}
std::map<std::string, int> ThemeManager::IMGUI_COL_IDS = {
{"Text", ImGuiCol_Text},
{"TextDisabled", ImGuiCol_TextDisabled},