603 lines
18 KiB
C++
603 lines
18 KiB
C++
#include "ImGuiWrapper.hpp"
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#include <cstdio>
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#include <vector>
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#include <cmath>
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#include <stdexcept>
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#include <boost/format.hpp>
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#include <boost/log/trivial.hpp>
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#include <wx/string.h>
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#include <wx/event.h>
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#include <wx/clipbrd.h>
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#include <wx/debug.h>
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#include <GL/glew.h>
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#include <imgui/imgui_internal.h>
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#include "libslic3r/libslic3r.h"
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#include "libslic3r/Utils.hpp"
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#include "GUI.hpp"
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namespace Slic3r {
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namespace GUI {
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ImGuiWrapper::ImGuiWrapper()
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: m_glyph_ranges(nullptr)
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, m_font_texture(0)
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, m_style_scaling(1.0)
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, m_mouse_buttons(0)
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, m_disabled(false)
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, m_new_frame_open(false)
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{
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}
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ImGuiWrapper::~ImGuiWrapper()
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{
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destroy_device_objects();
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ImGui::DestroyContext();
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}
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bool ImGuiWrapper::init()
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{
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ImGui::CreateContext();
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init_default_font(m_style_scaling);
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init_input();
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init_style();
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ImGui::GetIO().IniFilename = nullptr;
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return true;
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}
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void ImGuiWrapper::set_language(const std::string &language)
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{
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const ImWchar *ranges = nullptr;
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size_t idx = language.find('_');
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std::string lang = (idx == std::string::npos) ? language : language.substr(0, idx);
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static const ImWchar ranges_latin2[] =
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{
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0x0020, 0x00FF, // Basic Latin + Latin Supplement
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0x0100, 0x017F, // Latin Extended-A
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0,
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};
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if (lang == "cs" || lang == "pl") {
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ranges = ranges_latin2;
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} else if (lang == "ru" || lang == "uk") {
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ranges = ImGui::GetIO().Fonts->GetGlyphRangesCyrillic();
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} else if (lang == "jp") {
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ranges = ImGui::GetIO().Fonts->GetGlyphRangesJapanese();
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} else if (lang == "kr") {
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ranges = ImGui::GetIO().Fonts->GetGlyphRangesKorean();
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} else if (lang == "zh") {
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ranges = ImGui::GetIO().Fonts->GetGlyphRangesChineseSimplifiedCommon();
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}
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if (ranges != m_glyph_ranges) {
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m_glyph_ranges = ranges;
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init_default_font(m_style_scaling);
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}
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}
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void ImGuiWrapper::set_display_size(float w, float h)
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{
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ImGuiIO& io = ImGui::GetIO();
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io.DisplaySize = ImVec2(w, h);
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io.DisplayFramebufferScale = ImVec2(1.0f, 1.0f);
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}
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void ImGuiWrapper::set_style_scaling(float scaling)
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{
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if (!std::isnan(scaling) && !std::isinf(scaling) && scaling != m_style_scaling) {
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ImGui::GetStyle().ScaleAllSizes(scaling / m_style_scaling);
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init_default_font(scaling);
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m_style_scaling = scaling;
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}
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}
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bool ImGuiWrapper::update_mouse_data(wxMouseEvent& evt)
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{
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if (! display_initialized()) {
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return false;
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}
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ImGuiIO& io = ImGui::GetIO();
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io.MousePos = ImVec2((float)evt.GetX(), (float)evt.GetY());
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io.MouseDown[0] = evt.LeftIsDown();
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io.MouseDown[1] = evt.RightIsDown();
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io.MouseDown[2] = evt.MiddleIsDown();
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unsigned buttons = (evt.LeftIsDown() ? 1 : 0) | (evt.RightIsDown() ? 2 : 0) | (evt.MiddleIsDown() ? 4 : 0);
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m_mouse_buttons = buttons;
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new_frame();
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return want_mouse();
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}
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bool ImGuiWrapper::update_key_data(wxKeyEvent &evt)
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{
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if (! display_initialized()) {
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return false;
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}
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ImGuiIO& io = ImGui::GetIO();
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if (evt.GetEventType() == wxEVT_CHAR) {
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// Char event
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const auto key = evt.GetUnicodeKey();
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if (key != 0) {
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io.AddInputCharacter(key);
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}
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new_frame();
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return want_keyboard() || want_text_input();
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} else {
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// Key up/down event
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int key = evt.GetKeyCode();
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wxCHECK_MSG(key >= 0 && key < IM_ARRAYSIZE(io.KeysDown), false, "Received invalid key code");
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io.KeysDown[key] = evt.GetEventType() == wxEVT_KEY_DOWN;
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io.KeyShift = evt.ShiftDown();
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io.KeyCtrl = evt.ControlDown();
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io.KeyAlt = evt.AltDown();
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io.KeySuper = evt.MetaDown();
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new_frame();
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return want_keyboard() || want_text_input();
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}
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}
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void ImGuiWrapper::new_frame()
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{
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if (m_new_frame_open) {
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return;
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}
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if (m_font_texture == 0)
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create_device_objects();
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ImGui::NewFrame();
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m_new_frame_open = true;
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}
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void ImGuiWrapper::render()
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{
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ImGui::Render();
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render_draw_data(ImGui::GetDrawData());
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m_new_frame_open = false;
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}
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void ImGuiWrapper::set_next_window_pos(float x, float y, int flag)
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{
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ImGui::SetNextWindowPos(ImVec2(x, y), (ImGuiCond)flag);
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ImGui::SetNextWindowSize(ImVec2(0.0, 0.0));
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}
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void ImGuiWrapper::set_next_window_bg_alpha(float alpha)
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{
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ImGui::SetNextWindowBgAlpha(alpha);
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}
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bool ImGuiWrapper::begin(const std::string &name, int flags)
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{
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return ImGui::Begin(name.c_str(), nullptr, (ImGuiWindowFlags)flags);
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}
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bool ImGuiWrapper::begin(const wxString &name, int flags)
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{
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return begin(into_u8(name), flags);
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}
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void ImGuiWrapper::end()
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{
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ImGui::End();
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}
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bool ImGuiWrapper::button(const wxString &label)
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{
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auto label_utf8 = into_u8(label);
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return ImGui::Button(label_utf8.c_str());
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}
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bool ImGuiWrapper::radio_button(const wxString &label, bool active)
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{
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auto label_utf8 = into_u8(label);
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return ImGui::RadioButton(label_utf8.c_str(), active);
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}
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bool ImGuiWrapper::input_double(const std::string &label, const double &value, const std::string &format)
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{
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return ImGui::InputDouble(label.c_str(), const_cast<double*>(&value), 0.0f, 0.0f, format.c_str());
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}
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bool ImGuiWrapper::input_vec3(const std::string &label, const Vec3d &value, float width, const std::string &format)
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{
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bool value_changed = false;
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ImGui::BeginGroup();
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for (int i = 0; i < 3; ++i)
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{
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std::string item_label = (i == 0) ? "X" : ((i == 1) ? "Y" : "Z");
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ImGui::PushID(i);
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ImGui::PushItemWidth(width);
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value_changed |= ImGui::InputDouble(item_label.c_str(), const_cast<double*>(&value(i)), 0.0f, 0.0f, format.c_str());
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ImGui::PopID();
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}
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ImGui::EndGroup();
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return value_changed;
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}
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bool ImGuiWrapper::checkbox(const wxString &label, bool &value)
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{
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auto label_utf8 = into_u8(label);
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return ImGui::Checkbox(label_utf8.c_str(), &value);
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}
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void ImGuiWrapper::text(const char *label)
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{
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ImGui::Text(label, NULL);
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}
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void ImGuiWrapper::text(const std::string &label)
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{
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this->text(label.c_str());
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}
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void ImGuiWrapper::text(const wxString &label)
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{
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this->text(into_u8(label).c_str());
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}
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bool ImGuiWrapper::combo(const wxString& label, const std::vector<std::string>& options, int& selection)
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{
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// this is to force the label to the left of the widget:
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text(label);
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ImGui::SameLine();
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int selection_out = -1;
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bool res = false;
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const char *selection_str = selection < options.size() ? options[selection].c_str() : "";
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if (ImGui::BeginCombo("", selection_str)) {
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for (int i = 0; i < options.size(); i++) {
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if (ImGui::Selectable(options[i].c_str(), i == selection)) {
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selection_out = i;
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}
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}
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ImGui::EndCombo();
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res = true;
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}
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selection = selection_out;
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return res;
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}
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void ImGuiWrapper::disabled_begin(bool disabled)
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{
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wxCHECK_RET(!m_disabled, "ImGUI: Unbalanced disabled_begin() call");
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if (disabled) {
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ImGui::PushItemFlag(ImGuiItemFlags_Disabled, true);
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ImGui::PushStyleVar(ImGuiStyleVar_Alpha, ImGui::GetStyle().Alpha * 0.5f);
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m_disabled = true;
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}
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}
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void ImGuiWrapper::disabled_end()
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{
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if (m_disabled) {
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ImGui::PopItemFlag();
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ImGui::PopStyleVar();
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m_disabled = false;
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}
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}
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bool ImGuiWrapper::want_mouse() const
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{
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return ImGui::GetIO().WantCaptureMouse;
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}
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bool ImGuiWrapper::want_keyboard() const
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{
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return ImGui::GetIO().WantCaptureKeyboard;
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}
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bool ImGuiWrapper::want_text_input() const
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{
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return ImGui::GetIO().WantTextInput;
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}
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bool ImGuiWrapper::want_any_input() const
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{
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const auto io = ImGui::GetIO();
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return io.WantCaptureMouse || io.WantCaptureKeyboard || io.WantTextInput;
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}
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void ImGuiWrapper::init_default_font(float scaling)
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{
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static const float font_size = 18.0f;
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destroy_fonts_texture();
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ImGuiIO& io = ImGui::GetIO();
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io.Fonts->Clear();
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ImFont* font = io.Fonts->AddFontFromFileTTF((Slic3r::resources_dir() + "/fonts/NotoSans-Regular.ttf").c_str(), font_size * scaling, nullptr, m_glyph_ranges);
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if (font == nullptr) {
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font = io.Fonts->AddFontDefault();
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if (font == nullptr) {
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throw std::runtime_error("ImGui: Could not load deafult font");
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}
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}
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}
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void ImGuiWrapper::create_device_objects()
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{
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create_fonts_texture();
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}
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void ImGuiWrapper::create_fonts_texture()
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{
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// Build texture atlas
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ImGuiIO& io = ImGui::GetIO();
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unsigned char* pixels;
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int width, height;
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io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); // Load as RGBA 32-bits (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
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// Upload texture to graphics system
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GLint last_texture;
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glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
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glGenTextures(1, &m_font_texture);
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glBindTexture(GL_TEXTURE_2D, m_font_texture);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
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// Store our identifier
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io.Fonts->TexID = (ImTextureID)(intptr_t)m_font_texture;
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// Restore state
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glBindTexture(GL_TEXTURE_2D, last_texture);
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}
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void ImGuiWrapper::init_input()
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{
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ImGuiIO& io = ImGui::GetIO();
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// Keyboard mapping. ImGui will use those indices to peek into the io.KeysDown[] array.
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io.KeyMap[ImGuiKey_Tab] = WXK_TAB;
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io.KeyMap[ImGuiKey_LeftArrow] = WXK_LEFT;
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io.KeyMap[ImGuiKey_RightArrow] = WXK_RIGHT;
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io.KeyMap[ImGuiKey_UpArrow] = WXK_UP;
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io.KeyMap[ImGuiKey_DownArrow] = WXK_DOWN;
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io.KeyMap[ImGuiKey_PageUp] = WXK_PAGEUP;
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io.KeyMap[ImGuiKey_PageDown] = WXK_PAGEDOWN;
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io.KeyMap[ImGuiKey_Home] = WXK_HOME;
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io.KeyMap[ImGuiKey_End] = WXK_END;
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io.KeyMap[ImGuiKey_Insert] = WXK_INSERT;
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io.KeyMap[ImGuiKey_Delete] = WXK_DELETE;
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io.KeyMap[ImGuiKey_Backspace] = WXK_BACK;
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io.KeyMap[ImGuiKey_Space] = WXK_SPACE;
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io.KeyMap[ImGuiKey_Enter] = WXK_RETURN;
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io.KeyMap[ImGuiKey_Escape] = WXK_ESCAPE;
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io.KeyMap[ImGuiKey_A] = 'A';
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io.KeyMap[ImGuiKey_C] = 'C';
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io.KeyMap[ImGuiKey_V] = 'V';
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io.KeyMap[ImGuiKey_X] = 'X';
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io.KeyMap[ImGuiKey_Y] = 'Y';
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io.KeyMap[ImGuiKey_Z] = 'Z';
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// Don't let imgui special-case Mac, wxWidgets already do that
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io.ConfigMacOSXBehaviors = false;
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// Setup clipboard interaction callbacks
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io.SetClipboardTextFn = clipboard_set;
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io.GetClipboardTextFn = clipboard_get;
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io.ClipboardUserData = this;
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}
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void ImGuiWrapper::init_style()
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{
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ImGuiStyle &style = ImGui::GetStyle();
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auto set_color = [&](ImGuiCol_ col, unsigned hex_color) {
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style.Colors[col] = ImVec4(
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((hex_color >> 24) & 0xff) / 255.0f,
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((hex_color >> 16) & 0xff) / 255.0f,
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((hex_color >> 8) & 0xff) / 255.0f,
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(hex_color & 0xff) / 255.0f);
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};
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static const unsigned COL_GREY_DARK = 0x444444ff;
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static const unsigned COL_GREY_LIGHT = 0x666666ff;
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static const unsigned COL_ORANGE_DARK = 0xc16737ff;
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static const unsigned COL_ORANGE_LIGHT = 0xff7d38ff;
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// Generics
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set_color(ImGuiCol_TitleBgActive, COL_ORANGE_DARK);
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set_color(ImGuiCol_FrameBg, COL_GREY_DARK);
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set_color(ImGuiCol_FrameBgHovered, COL_GREY_LIGHT);
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set_color(ImGuiCol_FrameBgActive, COL_GREY_LIGHT);
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// Text selection
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set_color(ImGuiCol_TextSelectedBg, COL_ORANGE_DARK);
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// Buttons
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set_color(ImGuiCol_Button, COL_ORANGE_DARK);
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set_color(ImGuiCol_ButtonHovered, COL_ORANGE_LIGHT);
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set_color(ImGuiCol_ButtonActive, COL_ORANGE_LIGHT);
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// Checkbox
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set_color(ImGuiCol_CheckMark, COL_ORANGE_LIGHT);
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// ComboBox items
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set_color(ImGuiCol_Header, COL_ORANGE_DARK);
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set_color(ImGuiCol_HeaderHovered, COL_ORANGE_LIGHT);
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set_color(ImGuiCol_HeaderActive, COL_ORANGE_LIGHT);
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// Slider
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set_color(ImGuiCol_SliderGrab, COL_ORANGE_DARK);
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set_color(ImGuiCol_SliderGrabActive, COL_ORANGE_LIGHT);
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}
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void ImGuiWrapper::render_draw_data(ImDrawData *draw_data)
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{
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// Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
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ImGuiIO& io = ImGui::GetIO();
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int fb_width = (int)(draw_data->DisplaySize.x * io.DisplayFramebufferScale.x);
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int fb_height = (int)(draw_data->DisplaySize.y * io.DisplayFramebufferScale.y);
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if (fb_width == 0 || fb_height == 0)
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return;
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draw_data->ScaleClipRects(io.DisplayFramebufferScale);
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// We are using the OpenGL fixed pipeline to make the example code simpler to read!
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// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, vertex/texcoord/color pointers, polygon fill.
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GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
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GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
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GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
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GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
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glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_TRANSFORM_BIT);
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glDisable(GL_CULL_FACE);
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glDisable(GL_DEPTH_TEST);
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glDisable(GL_LIGHTING);
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glDisable(GL_COLOR_MATERIAL);
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glEnable(GL_SCISSOR_TEST);
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glEnableClientState(GL_VERTEX_ARRAY);
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glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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glEnableClientState(GL_COLOR_ARRAY);
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glEnable(GL_TEXTURE_2D);
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glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
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glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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GLint texture_env_mode = GL_MODULATE;
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glGetTexEnviv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, &texture_env_mode);
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glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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//glUseProgram(0); // You may want this if using this code in an OpenGL 3+ context where shaders may be bound
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// Setup viewport, orthographic projection matrix
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// Our visible imgui space lies from draw_data->DisplayPps (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayMin is typically (0,0) for single viewport apps.
|
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glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height);
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glMatrixMode(GL_PROJECTION);
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|
glPushMatrix();
|
|
glLoadIdentity();
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|
glOrtho(draw_data->DisplayPos.x, draw_data->DisplayPos.x + draw_data->DisplaySize.x, draw_data->DisplayPos.y + draw_data->DisplaySize.y, draw_data->DisplayPos.y, -1.0f, +1.0f);
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glMatrixMode(GL_MODELVIEW);
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|
glPushMatrix();
|
|
glLoadIdentity();
|
|
|
|
// Render command lists
|
|
ImVec2 pos = draw_data->DisplayPos;
|
|
for (int n = 0; n < draw_data->CmdListsCount; n++)
|
|
{
|
|
const ImDrawList* cmd_list = draw_data->CmdLists[n];
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|
const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data;
|
|
const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;
|
|
glVertexPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, pos)));
|
|
glTexCoordPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, uv)));
|
|
glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, col)));
|
|
|
|
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
|
|
{
|
|
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
|
|
if (pcmd->UserCallback)
|
|
{
|
|
// User callback (registered via ImDrawList::AddCallback)
|
|
pcmd->UserCallback(cmd_list, pcmd);
|
|
}
|
|
else
|
|
{
|
|
ImVec4 clip_rect = ImVec4(pcmd->ClipRect.x - pos.x, pcmd->ClipRect.y - pos.y, pcmd->ClipRect.z - pos.x, pcmd->ClipRect.w - pos.y);
|
|
if (clip_rect.x < fb_width && clip_rect.y < fb_height && clip_rect.z >= 0.0f && clip_rect.w >= 0.0f)
|
|
{
|
|
// Apply scissor/clipping rectangle
|
|
glScissor((int)clip_rect.x, (int)(fb_height - clip_rect.w), (int)(clip_rect.z - clip_rect.x), (int)(clip_rect.w - clip_rect.y));
|
|
|
|
// Bind texture, Draw
|
|
glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->TextureId);
|
|
glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer);
|
|
}
|
|
}
|
|
idx_buffer += pcmd->ElemCount;
|
|
}
|
|
}
|
|
|
|
// Restore modified state
|
|
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, texture_env_mode);
|
|
glDisableClientState(GL_COLOR_ARRAY);
|
|
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
|
|
glDisableClientState(GL_VERTEX_ARRAY);
|
|
glBindTexture(GL_TEXTURE_2D, (GLuint)last_texture);
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glPopMatrix();
|
|
glMatrixMode(GL_PROJECTION);
|
|
glPopMatrix();
|
|
glPopAttrib();
|
|
glPolygonMode(GL_FRONT, (GLenum)last_polygon_mode[0]); glPolygonMode(GL_BACK, (GLenum)last_polygon_mode[1]);
|
|
glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]);
|
|
glScissor(last_scissor_box[0], last_scissor_box[1], (GLsizei)last_scissor_box[2], (GLsizei)last_scissor_box[3]);
|
|
}
|
|
|
|
bool ImGuiWrapper::display_initialized() const
|
|
{
|
|
const ImGuiIO& io = ImGui::GetIO();
|
|
return io.DisplaySize.x >= 0.0f && io.DisplaySize.y >= 0.0f;
|
|
}
|
|
|
|
void ImGuiWrapper::destroy_device_objects()
|
|
{
|
|
destroy_fonts_texture();
|
|
}
|
|
|
|
void ImGuiWrapper::destroy_fonts_texture()
|
|
{
|
|
if (m_font_texture) {
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
io.Fonts->TexID = 0;
|
|
glDeleteTextures(1, &m_font_texture);
|
|
m_font_texture = 0;
|
|
}
|
|
}
|
|
|
|
const char* ImGuiWrapper::clipboard_get(void* user_data)
|
|
{
|
|
ImGuiWrapper *self = reinterpret_cast<ImGuiWrapper*>(user_data);
|
|
|
|
const char* res = "";
|
|
|
|
if (wxTheClipboard->Open()) {
|
|
if (wxTheClipboard->IsSupported(wxDF_TEXT)) {
|
|
wxTextDataObject data;
|
|
wxTheClipboard->GetData(data);
|
|
|
|
if (data.GetTextLength() > 0) {
|
|
self->m_clipboard_text = into_u8(data.GetText());
|
|
res = self->m_clipboard_text.c_str();
|
|
}
|
|
}
|
|
|
|
wxTheClipboard->Close();
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
void ImGuiWrapper::clipboard_set(void* /* user_data */, const char* text)
|
|
{
|
|
if (wxTheClipboard->Open()) {
|
|
wxTheClipboard->SetData(new wxTextDataObject(wxString::FromUTF8(text))); // object owned by the clipboard
|
|
wxTheClipboard->Close();
|
|
}
|
|
}
|
|
|
|
|
|
} // namespace GUI
|
|
} // namespace Slic3r
|