105 lines
3.8 KiB
C++
105 lines
3.8 KiB
C++
#ifndef TRIANGLES_IMGUI_HELPER_HPP
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#define TRIANGLES_IMGUI_HELPER_HPP
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#include <imgui.h>
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#include "state.hpp"
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#define SHOW_HELP_WIDTH (state->get_width() / 2.0f)
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#define SHOW_HELP_HEIGHT (state->get_height() / 2.0f)
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#ifndef NDEBUG
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# include <cstdio>
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#endif
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namespace Tri {
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// Seems misleading, but imgui handles setting up the window during update
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// so this should be called during update, not draw
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inline void draw_help(Tri::State *state) {
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if(state->get_flags().test(0)) {
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ImGui::SetNextWindowPos(sf::Vector2f(10.0f, 10.0f));
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ImGui::SetNextWindowSize(sf::Vector2f(
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state->get_width() - 20.0f,
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state->get_height() - 20.0f));
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ImGui::SetNextWindowBgAlpha(0.7f);
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ImGui::Begin("Help Window", nullptr, ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoSavedSettings);
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ImGui::Text("This is the help window - Press \"H\" to toggle this window");
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ImGui::Text("Click anywhere to create triangles, one point at a time");
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ImGui::Text("You cannot draw when a window is open");
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ImGui::Text("Press \"U\" to undo. Clicking will remove all future undo history");
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ImGui::Text("Press \"R\" to redo.");
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ImGui::Text("Press \"C\" to change colors");
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ImGui::Text("Press \"B\" to change background color");
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ImGui::Text("Press \"S\" to save what was drawn as a png image");
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if(ImGui::Button("Close")) {
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state->close_help();
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}
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ImGui::End();
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}
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}
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inline void draw_show_help(Tri::State *state) {
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float alpha = state->get_starting_help_alpha();
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if(alpha > 0.0f) {
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ImGui::PushStyleVar(ImGuiStyleVar_Alpha, alpha);
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ImGui::SetNextWindowPos(sf::Vector2f(
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(state->get_width() - SHOW_HELP_WIDTH) / 2.0f,
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(state->get_height() - SHOW_HELP_HEIGHT) / 2.0f));
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ImGui::SetNextWindowSize(sf::Vector2f(
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SHOW_HELP_WIDTH,
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SHOW_HELP_HEIGHT));
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ImGui::Begin("Use Help Window", nullptr, ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoSavedSettings);
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ImGui::SetWindowFontScale(3.0f);
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ImGui::Text("Press \"H\" for help");
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ImGui::End();
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ImGui::PopStyleVar();
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}
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}
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inline void draw_color_picker(Tri::State *state) {
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if(state->get_flags().test(2)) {
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ImGui::Begin("Tri Color Picker");
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ImGui::ColorPicker4("Tri Color", state->get_color());
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if(ImGui::Button("Close")) {
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state->close_color_picker();
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}
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ImGui::End();
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}
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}
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inline void draw_bg_color_picker(Tri::State *state) {
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if(state->get_flags().test(5)) {
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ImGui::Begin("BG Color Picker");
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ImGui::ColorPicker3("BG Color", state->get_bg_color());
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if(ImGui::Button("Close")) {
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state->close_bg_color_picker();
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}
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ImGui::End();
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}
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}
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inline void draw_save(Tri::State *state) {
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if(state->get_flags().test(6)) {
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auto *filenameBuffer = state->get_save_filename_buffer();
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ImGui::Begin("Save");
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ImGui::InputText("Filename", filenameBuffer->data(), filenameBuffer->size() - 1);
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if(ImGui::Button("Save")) {
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if(state->do_save()) {
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state->close_save();
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}
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} else if(ImGui::Button("Cancel")) {
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state->close_save();
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}
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auto string_view = state->failed_save_message();
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if(!string_view.empty()) {
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ImGui::TextUnformatted(string_view.data(), string_view.data() + string_view.size());
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}
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ImGui::End();
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}
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}
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}
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#endif
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