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PrusaSlicer/src/slic3r/GUI/Gizmos/GLGizmoEmboss.cpp
Filip Sykala 3fab53894e Emboss rotation
2021-12-02 12:59:53 +01:00

2102 lines
78 KiB
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#include "GLGizmoEmboss.hpp"
#include "slic3r/GUI/GLCanvas3D.hpp"
#include "slic3r/GUI/GUI_App.hpp"
#include "slic3r/GUI/GUI_ObjectManipulation.hpp"
#include "slic3r/GUI/GUI_ObjectList.hpp"
#include "slic3r/GUI/MainFrame.hpp" // to update title when add text
#include "slic3r/GUI/NotificationManager.hpp"
#include "slic3r/GUI/Plater.hpp"
#include "slic3r/GUI/MsgDialog.hpp"
#include "slic3r/GUI/format.hpp"
#include "slic3r/GUI/CameraUtils.hpp"
#include "slic3r/GUI/Jobs/EmbossJob.hpp"
#include "slic3r/GUI/Jobs/NotificationProgressIndicator.hpp"
// TODO: remove include
#include "libslic3r/SVG.hpp" // debug store
#include "libslic3r/Geometry.hpp" // covex hull 2d
#include "libslic3r/Model.hpp"
#include "libslic3r/ClipperUtils.hpp" // union_ex
#include "libslic3r/AppConfig.hpp" // store/load font list
#include "libslic3r/MapUtils.hpp"
#include "libslic3r/Format/OBJ.hpp" // load obj file for default object
#include "imgui/imgui_stdlib.h" // using std::string for inputs
#include "nanosvg/nanosvg.h" // load SVG file
#include <wx/font.h>
#include <wx/fontutil.h>
#include <wx/fontdlg.h>
#include <GL/glew.h>
#ifdef _WIN32
// no specific include - already inside of libslic3r/Emboss.hpp
#elif defined(__APPLE__)
#include <wx/uri.h>
#include <CoreText/CTFont.h>
#include <wx/osx/core/cfdictionary.h>
#elif defined(__linux__)
// Font Config must exist
#include <wx/filename.h>
#include <fontconfig/fontconfig.h>
#endif
// uncomment for easier debug
//#define ALLOW_DEBUG_MODE
namespace Slic3r {
class WxFontUtils
{
public:
WxFontUtils() = delete;
// os specific load of wxFont
static std::optional<Slic3r::Emboss::Font> load_font(const wxFont &font);
static FontItem::Type get_actual_type();
static FontItem get_font_item(const wxFont &font);
// load font used by Operating system as default GUI
static FontItem get_os_font();
static std::string get_human_readable_name(const wxFont &font);
// serialize / deserialize font
static std::string store_wxFont(const wxFont &font);
static std::optional<wxFont> load_wxFont(const std::string &font_descriptor);
// Try to create similar font, loaded from 3mf from different Computer
static std::optional<wxFont> create_wxFont(const FontItem &fi, const FontProp &fp);
// update font property by wxFont
static void update_property(FontProp& font_prop, const wxFont& font);
// map to convert wxFont type to string and vice versa
static const std::map<wxFontFamily, std::string> from_family;
static const std::map<std::string, wxFontFamily> to_family;
static const std::map<wxFontStyle, std::string> from_style;
static const std::map<std::string, wxFontStyle> to_style;
static const std::map<wxFontWeight, std::string> from_weight;
static const std::map<std::string, wxFontWeight> to_weight;
};
class NSVGUtils
{
public:
NSVGUtils() = delete;
// inspired by nanosvgrast.h function nsvgRasterize->nsvg__flattenShape
static void flatten_cubic_bez(Polygon &polygon, float tessTol,
Vec2f p1, Vec2f p2, Vec2f p3,Vec2f p4, int level);
// convert svg image to ExPolygons
static ExPolygons to_ExPolygons(NSVGimage *image, float tessTol = 10., int max_level = 10);
};
#ifdef __linux__
class FontConfigHelp
{
public:
FontConfigHelp() { FcInit(); }
~FontConfigHelp() { FcFini(); }
// inspired by wxpdfdoc - https://github.com/utelle/wxpdfdoc/blob/5bdcdb9953327d06dc50ec312685ccd9bc8400e0/src/pdffontmanager.cpp
std::string get_font_path(const wxFont &font) {
FcConfig *fc = FcInitLoadConfigAndFonts();
if (fc == nullptr) return "";
ScopeGuard sg_fc([fc]() { FcConfigDestroy(fc); });
wxString fontDesc = font.GetNativeFontInfoUserDesc();
wxString faceName = font.GetFaceName();
const wxScopedCharBuffer faceNameBuffer = faceName.ToUTF8();
const char* fontFamily = faceNameBuffer;
// Check font slant
int slant = FC_SLANT_ROMAN;
if (fontDesc.Find(wxS("Oblique")) != wxNOT_FOUND) slant = FC_SLANT_OBLIQUE;
else if (fontDesc.Find(wxS("Italic")) != wxNOT_FOUND) slant = FC_SLANT_ITALIC;
// Check font weight
int weight = FC_WEIGHT_NORMAL;
if (fontDesc.Find(wxS("Book")) != wxNOT_FOUND) weight = FC_WEIGHT_BOOK;
else if (fontDesc.Find(wxS("Medium")) != wxNOT_FOUND) weight = FC_WEIGHT_MEDIUM;
#ifdef FC_WEIGHT_ULTRALIGHT
else if (fontDesc.Find(wxS("Ultra-Light")) != wxNOT_FOUND) weight = FC_WEIGHT_ULTRALIGHT;
#endif
else if (fontDesc.Find(wxS("Light")) != wxNOT_FOUND) weight = FC_WEIGHT_LIGHT;
else if (fontDesc.Find(wxS("Semi-Bold")) != wxNOT_FOUND) weight = FC_WEIGHT_DEMIBOLD;
#ifdef FC_WEIGHT_ULTRABOLD
else if (fontDesc.Find(wxS("Ultra-Bold")) != wxNOT_FOUND) weight = FC_WEIGHT_ULTRABOLD;
#endif
else if (fontDesc.Find(wxS("Bold")) != wxNOT_FOUND) weight = FC_WEIGHT_BOLD;
else if (fontDesc.Find(wxS("Heavy")) != wxNOT_FOUND) weight = FC_WEIGHT_BLACK;
// Check font width
int width = FC_WIDTH_NORMAL;
if (fontDesc.Find(wxS("Ultra-Condensed")) != wxNOT_FOUND) width = FC_WIDTH_ULTRACONDENSED;
else if (fontDesc.Find(wxS("Extra-Condensed")) != wxNOT_FOUND) width = FC_WIDTH_EXTRACONDENSED;
else if (fontDesc.Find(wxS("Semi-Condensed")) != wxNOT_FOUND) width = FC_WIDTH_SEMICONDENSED;
else if (fontDesc.Find(wxS("Condensed")) != wxNOT_FOUND) width = FC_WIDTH_CONDENSED;
else if (fontDesc.Find(wxS("Ultra-Expanded")) != wxNOT_FOUND) width = FC_WIDTH_ULTRAEXPANDED;
else if (fontDesc.Find(wxS("Extra-Expanded")) != wxNOT_FOUND) width = FC_WIDTH_EXTRAEXPANDED;
else if (fontDesc.Find(wxS("Semi-Expanded")) != wxNOT_FOUND) width = FC_WIDTH_SEMIEXPANDED;
else if (fontDesc.Find(wxS("Expanded")) != wxNOT_FOUND) width = FC_WIDTH_EXPANDED;
FcResult res;
FcPattern* matchPattern = FcPatternBuild(NULL, FC_FAMILY, FcTypeString, (FcChar8*) fontFamily, NULL);
ScopeGuard sg_mp([matchPattern]() { FcPatternDestroy(matchPattern); });
FcPatternAddInteger(matchPattern, FC_SLANT, slant);
FcPatternAddInteger(matchPattern, FC_WEIGHT, weight);
FcPatternAddInteger(matchPattern, FC_WIDTH, width);
FcConfigSubstitute (NULL, matchPattern, FcMatchPattern);
FcDefaultSubstitute (matchPattern);
FcPattern* resultPattern = FcFontMatch (NULL, matchPattern, &res);
if (resultPattern == nullptr) return "";
ScopeGuard sg_rp([resultPattern]() { FcPatternDestroy(resultPattern); });
FcChar8 *fileName;
if (FcPatternGetString(resultPattern, FC_FILE, 0, &fileName) != FcResultMatch) return "";
wxString fontFileName = wxString::FromUTF8((char *) fileName);
if (fontFileName.IsEmpty()) return "";
// find full file path
wxFileName myFileName(fontFileName);
if (!myFileName.IsOk()) return "";
if (myFileName.IsRelative()) {
// Check whether the file is relative to the current working directory
if (!(myFileName.MakeAbsolute() && myFileName.FileExists())) {
return "";
// File not found, search in given search paths
//wxString foundFileName = m_searchPaths.FindAbsoluteValidPath(fileName);
//if (!foundFileName.IsEmpty()) {
// myFileName.Assign(foundFileName);
//}
}
}
if (!myFileName.FileExists() || !myFileName.IsFileReadable()) return "";
// File exists and is accessible
wxString fullFileName = myFileName.GetFullPath();
return std::string(fullFileName.c_str());
}
};
#endif // __linux__
} // namespace Slic3r
using namespace Slic3r;
using namespace Slic3r::GUI;
GLGizmoEmboss::GLGizmoEmboss(GLCanvas3D &parent)
: GLGizmoBase(parent, M_ICON_FILENAME, -2)
, m_font_selected(0)
, m_font(nullptr)
, m_volume(nullptr)
, m_exist_notification(false)
, m_is_initialized(false) // initialize on first opening gizmo
, m_job(std::make_unique<EmbossJob>())
, m_rotate_gizmo(parent, GLGizmoRotate::Axis::Z)
{
m_rotate_gizmo.set_group_id(0);
// TODO: add suggestion to use https://fontawesome.com/
// (copy & paste) unicode symbols from web
}
void GLGizmoEmboss::set_fine_position()
{
const Selection & selection = m_parent.get_selection();
const Selection::IndicesList indices = selection.get_volume_idxs();
// no selected volume
if (indices.empty()) return;
const GLVolume *volume = selection.get_volume(*indices.begin());
// bad volume selected (e.g. deleted one)
if (volume == nullptr) return;
const Camera &camera = wxGetApp().plater()->get_camera();
Polygon hull = CameraUtils::create_hull2d(camera, *volume);
// TODO: fix width
ImVec2 windows_size = m_gui_cfg->draw_advanced ?
m_gui_cfg->minimal_window_size_with_advance :
m_gui_cfg->minimal_window_size;
ImVec2 offset = ImGuiWrapper::suggest_location(windows_size, hull);
m_gui_cfg->offset = offset;
return;
Polygon rect({Point(offset.x, offset.y),
Point(offset.x + windows_size.x, offset.y),
Point(offset.x + windows_size.x, offset.y + windows_size.y),
Point(offset.x, offset.y + windows_size.y)});
ImGuiWrapper::draw(hull);
ImGuiWrapper::draw(rect);
}
#ifdef ALLOW_DEBUG_MODE
static void draw_fine_position(const Selection &selection)
{
const Selection::IndicesList indices = selection.get_volume_idxs();
// no selected volume
if (indices.empty()) return;
const GLVolume *volume = selection.get_volume(*indices.begin());
// bad volume selected (e.g. deleted one)
if (volume == nullptr) return;
const Camera &camera = wxGetApp().plater()->get_camera();
Slic3r::Polygon hull = CameraUtils::create_hull2d(camera, *volume);
ImVec2 windows_size(174, 202);
ImVec2 offset = ImGuiWrapper::suggest_location(windows_size, hull);
Slic3r::Polygon rect(
{Point(offset.x, offset.y), Point(offset.x + windows_size.x, offset.y),
Point(offset.x + windows_size.x, offset.y + windows_size.y),
Point(offset.x, offset.y + windows_size.y)});
ImGuiWrapper::draw(hull);
ImGuiWrapper::draw(rect);
}
#endif // ALLOW_DEBUG_MODE
void GLGizmoEmboss::create_volume(ModelVolumeType volume_type, const Vec2d& mouse_pos)
{
if (!m_is_initialized) initialize();
const Selection &selection = m_parent.get_selection();
if(selection.is_empty()) return;
set_default_configuration();
TriangleMesh tm = m_default_mesh; // copy
// By position of cursor create transformation to put text on surface of model
Transform3d transformation = Transform3d::Identity();
std::optional<Transform3d> tr = transform_on_surface(mouse_pos);
if (tr.has_value()) transformation = *tr;
create_emboss_volume(std::move(tm), transformation, create_volume_name(),
create_configuration(), volume_type,
selection.get_object_idx());
}
bool GLGizmoEmboss::on_init()
{
m_rotate_gizmo.init();
std::array<float, 4> gray_color = {.6f, .6f, .6f, .3f};
m_rotate_gizmo.set_highlight_color(gray_color);
// m_grabbers.emplace_back();
m_shortcut_key = WXK_CONTROL_T;
return true;
}
std::string GLGizmoEmboss::on_get_name() const { return _u8L("Emboss"); }
void GLGizmoEmboss::on_render() {
// no volume selected
if (m_volume == nullptr) return;
glsafe(::glClear(GL_DEPTH_BUFFER_BIT));
const Selection &selection = m_parent.get_selection();
unsigned int volume_idx = *selection.get_volume_idxs().begin();
const GLVolume* gl_volume = selection.get_volume(volume_idx);
Transform3d instance_matrix = gl_volume->get_instance_transformation().get_matrix();
Transform3d volume_matrix = gl_volume->get_volume_transformation().get_matrix(true);
Transform3d tr_mat = instance_matrix * volume_matrix *
instance_matrix.inverse();
glsafe(::glPushMatrix());
//glsafe(::glMultMatrixd(tr_mat.data()));
m_rotate_gizmo.render();
glsafe(::glPopMatrix());
if (!m_preview.is_initialized()) return;
double angle = m_rotate_gizmo.get_angle();
glsafe(::glPushMatrix());
glsafe(::glMultMatrixd(m_preview_trmat.data()));
auto *contour_shader = wxGetApp().get_shader("mm_contour");
contour_shader->start_using();
glsafe(::glLineWidth(1.0f));
glsafe(::glPolygonMode(GL_FRONT_AND_BACK, GL_LINE));
m_preview.render();
glsafe(::glPolygonMode(GL_FRONT_AND_BACK, GL_FILL));
contour_shader->stop_using();
glsafe(::glPopMatrix());
}
void GLGizmoEmboss::on_render_for_picking() {
m_rotate_gizmo.render_for_picking();
}
void GLGizmoEmboss::on_render_input_window(float x, float y, float bottom_limit)
{
initialize();
check_selection();
ImVec2 min_window_size = m_gui_cfg->draw_advanced ?
m_gui_cfg->minimal_window_size_with_advance :
m_gui_cfg->minimal_window_size;
ImGui::PushStyleVar(ImGuiStyleVar_WindowMinSize, min_window_size);
// ImGui::SetNextWindowSize(ImVec2(0, min_window_size.y),
// ImGuiCond_::ImGuiCond_Always);
#ifdef ALLOW_DEBUG_MODE
// draw suggested position of window
draw_fine_position(m_parent.get_selection());
#endif // ALLOW_DEBUG_MODE
// check if is set window offset
if (m_gui_cfg->offset.has_value()) {
ImGui::SetNextWindowPos(*m_gui_cfg->offset, ImGuiCond_Always);
// clear request on offset
m_gui_cfg->offset = {};
}
int flag = // ImGuiWindowFlags_AlwaysAutoResize |
// ImGuiWindowFlags_NoResize |
ImGuiWindowFlags_NoCollapse;
m_imgui->begin(on_get_name(), flag);
ImGui::GetWindowSize();
draw_window();
m_imgui->end();
ImGui::PopStyleVar(); // WindowMinSize
}
void GLGizmoEmboss::on_set_state()
{
m_rotate_gizmo.set_state(GLGizmoBase::m_state);
// Closing gizmo. e.g. selecting another one
if (GLGizmoBase::m_state == GLGizmoBase::Off) {
// refuse outgoing during text preview
if (false) {
GLGizmoBase::m_state = GLGizmoBase::On;
auto notification_manager = wxGetApp().plater()->get_notification_manager();
notification_manager->push_notification(
NotificationType::CustomNotification,
NotificationManager::NotificationLevel::RegularNotificationLevel,
_u8L("ERROR: Wait until ends or Cancel process."));
return;
}
m_volume = nullptr;
remove_notification_not_valid_font();
} else if (GLGizmoBase::m_state == GLGizmoBase::On) {
if (!m_is_initialized) initialize();
const Selection &selection = m_parent.get_selection();
bool create_new_object = selection.is_empty();
// When add Text on empty plate, Create new object with volume
if (create_new_object) {
set_default_configuration();
TriangleMesh tm = m_default_mesh; // copy
create_emboss_object(std::move(tm), create_volume_name(), create_configuration());
// gizmo will open when successfuly create new object
GLGizmoBase::m_state = GLGizmoBase::Off;
return;
}
// Try(when exist) set configuration by volume
load_configuration(get_selected_volume());
// change position of just opened emboss window
set_fine_position();
// when open by hyperlink it needs to show up
m_parent.reload_scene(true);
// TODO: after key T windows doesn't appear
}
}
CommonGizmosDataID GLGizmoEmboss::on_get_requirements() const
{
return CommonGizmosDataID((int) CommonGizmosDataID::Raycaster |
(int) CommonGizmosDataID::SelectionInfo);
}
void GLGizmoEmboss::on_start_dragging() { m_rotate_gizmo.start_dragging(); }
void GLGizmoEmboss::on_stop_dragging() { m_rotate_gizmo.start_dragging(); }
void GLGizmoEmboss::initialize()
{
if (m_is_initialized) return;
m_is_initialized = true;
m_gui_cfg.emplace(GuiCfg());
float space = ImGui::GetTextLineHeightWithSpacing() -
ImGui::GetTextLineHeight();
m_gui_cfg->max_font_name_width = ImGui::CalcTextSize("Maximal font name").x;
m_gui_cfg->icon_width = ImGui::GetTextLineHeight();
m_gui_cfg->icon_width_with_spacing = m_gui_cfg->icon_width + space;
float scroll_width = m_gui_cfg->icon_width_with_spacing; // fix
m_gui_cfg->combo_font_width = m_gui_cfg->max_font_name_width +
2 * m_gui_cfg->icon_width_with_spacing +
scroll_width;
m_gui_cfg->rename_pos_x = m_gui_cfg->max_font_name_width + space;
m_gui_cfg->delete_pos_x = m_gui_cfg->rename_pos_x +
m_gui_cfg->icon_width_with_spacing;
m_gui_cfg->text_size = ImVec2(-FLT_MIN, ImGui::GetTextLineHeight() *
m_gui_cfg->count_line_of_text);
ImVec2 letter_m_size = ImGui::CalcTextSize("M");
m_gui_cfg->advanced_input_width = letter_m_size.x * 6;
// calculate window size
const ImGuiStyle &style = ImGui::GetStyle();
float input_height = letter_m_size.y + style.FramePadding.y * 2.f;
float window_width = m_gui_cfg->combo_font_width + style.WindowPadding.x * 2.f;
float window_height = input_height * 4.f + // header + combo font + advance + button
style.ItemSpacing.y * 3.f +
m_gui_cfg->text_size.y +
style.WindowPadding.y * 2.f;
m_gui_cfg->minimal_window_size = ImVec2(window_width, window_height);
float advance_height = (input_height + style.ItemSpacing.y) * 4.f;
m_gui_cfg->minimal_window_size_with_advance =
ImVec2(window_width, window_height + advance_height);
// TODO: What to do when icon was NOT loaded?
bool success = init_icons();
load_font_list();
// try to load valid font
m_font_selected = 0;
bool is_font_loaded = load_font();
while (!is_font_loaded && !m_font_list.empty()) {
// can't load so erase it from list
m_font_list.erase(m_font_list.begin());
is_font_loaded = load_font();
}
set_default_configuration();
// create default mesh to faster add new volume
// solve state when no font loaded
if (is_font_loaded) {
// create default
ExPolygons shapes = Emboss::text2shapes(*m_font, m_text.c_str(), m_font_prop);
float scale = m_font_prop.size_in_mm / m_font->ascent;
float depth = m_font_prop.emboss / scale;
auto projectZ = std::make_unique<Emboss::ProjectZ>(depth);
Emboss::ProjectScale project(std::move(projectZ), scale);
m_default_mesh = TriangleMesh(Emboss::polygons2model(shapes, project));
} else {
// When cant load any font use default object loaded from file
std::string path = Slic3r::resources_dir() +
"/data/embossed_text.stl";
if (!load_obj(path.c_str(), &m_default_mesh)) {
// when can't load mesh use cube
m_default_mesh = TriangleMesh(its_make_cube(36., 4., 2.5));
}
}
}
FontList GLGizmoEmboss::create_default_font_list() {
return {
WxFontUtils::get_font_item(wxFont(5, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL))
, WxFontUtils::get_font_item(wxFont(10, wxFONTFAMILY_MODERN, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_BOLD))
, WxFontUtils::get_os_font()
};
}
void GLGizmoEmboss::set_default_configuration()
{
m_text = _u8L("Embossed text");
m_font_prop = FontProp();
load_font(); // reload actual font - because of font size
}
#include "imgui/imgui_internal.h" // to unfocus input --> ClearActiveID
void GLGizmoEmboss::check_selection()
{
ModelVolume *vol = get_selected_volume();
// is same volume selected?
if (vol != nullptr && m_volume == vol) return;
// for changed volume notification is NOT valid
remove_notification_not_valid_font();
// Do not use focused input value when switch volume(it must swith value)
if (m_volume != nullptr) ImGui::ClearActiveID();
// is select embossed volume?
if (load_configuration(vol))
// successfull load volume for editing
return;
// behave like adding new text
m_volume = nullptr;
set_default_configuration();
}
ModelVolume *GLGizmoEmboss::get_selected_volume()
{
return get_selected_volume(m_parent.get_selection(),
wxGetApp().plater()->model().objects);
}
ModelVolume *GLGizmoEmboss::get_selected_volume(const Selection &selection,
const ModelObjectPtrs objects)
{
int object_idx = selection.get_object_idx();
// is more object selected?
if (object_idx == -1) return nullptr;
auto volume_idxs = selection.get_volume_idxs();
// is more volumes selected?
if (volume_idxs.size() != 1) return nullptr;
unsigned int vol_id_gl = *volume_idxs.begin();
const GLVolume * vol_gl = selection.get_volume(vol_id_gl);
const GLVolume::CompositeID &id = vol_gl->composite_id;
if (id.object_id < 0 || static_cast<size_t>(id.object_id) >= objects.size())
return nullptr;
ModelObject *object = objects[id.object_id];
if (id.volume_id < 0 || static_cast<size_t>(id.volume_id) >= object->volumes.size())
return nullptr;
return object->volumes[id.volume_id];
}
bool GLGizmoEmboss::process()
{
// no volume is selected -> selection from right panel
if (m_volume == nullptr) return false;
// exist loaded font?
if (m_font == nullptr) return false;
auto data = std::make_unique<EmbossData>(
m_font, create_configuration(), create_volume_name(), m_volume);
m_job->run(std::move(data));
// notification is removed befor object is changed by job
remove_notification_not_valid_font();
return true;
}
void GLGizmoEmboss::close()
{
// close gizmo == open it again
m_parent.get_gizmos_manager().open_gizmo(GLGizmosManager::Emboss);
m_job->stop();
m_job->join(); // free thread resource
}
void GLGizmoEmboss::draw_window()
{
#ifdef ALLOW_DEBUG_MODE
if (ImGui::Button("re-process")) process();
if (ImGui::Button("add svg")) choose_svg_file();
if (ImGui::Button("use system font")) {
size_t font_index = m_font_list.size();
m_font_list.emplace_back(WxFontUtils::get_os_font());
bool loaded = load_font(font_index);
}
#endif // ALLOW_DEBUG_MODE
if (m_font == nullptr) {
ImGui::Text(_u8L("Warning: No font is selected. Select correct one.").c_str());
}
draw_font_list();
draw_text_input();
bool &advanced = m_gui_cfg->draw_advanced;
if (ImGui::Checkbox(_u8L("Advance").c_str(), &advanced)) {
ImVec2 window_size =
advanced ?
ImVec2(0, m_gui_cfg->minimal_window_size_with_advance.y) :
m_gui_cfg->minimal_window_size;
ImGui::SetWindowSize(window_size, ImGuiCond_Always);
}
if (advanced) draw_advanced();
if (ImGui::Button(_u8L("Close").c_str())) close();
// Option to create text volume when reselecting volumes
m_imgui->disabled_begin(m_font == nullptr);
if (m_volume == nullptr) {
ImGui::SameLine();
if (ImGui::Button(_u8L("Generate preview").c_str())) {
const Selection &s = m_parent.get_selection();
auto selected_indices = s.get_instance_idxs();
TriangleMesh mesh = m_default_mesh; // copy
if (selected_indices.empty()) {
create_emboss_object(std::move(mesh), create_volume_name(), create_configuration());
} else {
create_volume(ModelVolumeType::MODEL_PART);
}
}
}
m_imgui->disabled_end();
ImGui::SameLine();
const Selection &s = m_parent.get_selection();
bool dragging = s.is_dragging();
ImGui::Checkbox("dragging", &dragging);
static bool change_position = true;
ImGui::SameLine();
ImGui::Checkbox("position", &change_position);
if (change_position) {
// draw text on coordinate of mouse
preview_positon();
}
}
Transform3d get_emboss_transformation(const Vec3f& position, const Vec3f& emboss_dir) {
// up and emboss direction for generated model
Vec3d text_up_dir = Vec3d::UnitY();
Vec3d text_emboss_dir = Vec3d::UnitZ();
// wanted up direction of result
Vec3d wanted_up_side = Vec3d::UnitZ();
if (std::fabs(emboss_dir.z()) > 0.9) wanted_up_side = Vec3d::UnitY();
Vec3d wanted_emboss_dir = emboss_dir.cast<double>();
wanted_emboss_dir.normalize(); // after cast from float it needs to be normalized again
// create perpendicular unit vector to surface triangle normal vector
// lay on surface of triangle and define up vector for text
Vec3d wanted_up_dir = wanted_emboss_dir.cross(wanted_up_side).cross(wanted_emboss_dir);
wanted_up_dir.normalize(); // normal3d is NOT perpendicular to normal_up_dir
// perpendicular to emboss vector of text and normal
Vec3d axis_view = text_emboss_dir.cross(wanted_emboss_dir);
double angle_view = std::acos(text_emboss_dir.dot(wanted_emboss_dir)); // in rad
axis_view.normalize();
Eigen::AngleAxis view_rot(angle_view, axis_view);
Vec3d wanterd_up_rotated = view_rot.matrix().inverse() * wanted_up_dir;
wanterd_up_rotated.normalize();
double angle_up = std::acos(text_up_dir.dot(wanterd_up_rotated));
// text_view and text_view2 should have same direction
Vec3d text_view2 = text_up_dir.cross(wanterd_up_rotated);
Vec3d diff_view = text_emboss_dir - text_view2;
if (std::fabs(diff_view.x()) > 1. || std::fabs(diff_view.y()) > 1. ||
std::fabs(diff_view.z()) > 1.) // oposit direction
angle_up *= -1.;
Eigen::AngleAxis up_rot(angle_up, text_emboss_dir);
Transform3d transform = Transform3d::Identity();
transform.translate(position.cast<double>());
transform.rotate(view_rot);
transform.rotate(up_rot);
return transform;
}
std::optional<Transform3d> GLGizmoEmboss::transform_on_surface(
const Vec2d &mouse_pos)
{
auto rc = m_c->raycaster();
if (rc == nullptr || !rc->is_valid()) return {};
const std::vector<const MeshRaycaster *> &raycasters = rc->raycasters();
Selection &selection = m_parent.get_selection();
// check selection has volume
if (selection.volumes_count() < 0) return {};
assert(selection.volumes_count() == (int)raycasters.size());
const Camera &camera = wxGetApp().plater()->get_camera();
// in object coordinate
struct Hit
{
Vec3f position = Vec3f::Zero();
Vec3f normal = Vec3f::Zero();
double squared_distance = std::numeric_limits<double>::max();
Hit()=default;
};
std::optional<Hit> closest;
const ModelObject * mo = m_c->selection_info()->model_object();
const ModelInstance *mi = mo->instances[selection.get_instance_idx()];
const Transform3d instance_trafo = mi->get_transformation().get_matrix();
// Cast a ray on all meshes, pick the closest hit and save it for the
// respective mesh
int count_mesh = raycasters.size();
auto volume_ids = selection.get_volume_idxs();
for (int volume_in_object = 0; volume_in_object < count_mesh; ++volume_in_object) {
const MeshRaycaster *raycaster = raycasters[volume_in_object];
const ModelVolume * mv = mo->volumes[volume_in_object];
Transform3d trafo = instance_trafo * mv->get_matrix();
Hit act_hit;
if (!raycaster->unproject_on_mesh(mouse_pos, trafo, camera, act_hit.position, act_hit.normal))
continue;
Vec3d act_hit_tr = trafo * act_hit.position.cast<double>();
act_hit.squared_distance = (camera.get_position() - act_hit_tr).squaredNorm();
if (closest.has_value() &&
closest->squared_distance < act_hit.squared_distance)
continue;
closest = act_hit;
}
// check exist hit
if (!closest.has_value()) return {};
return get_emboss_transformation(closest->position, closest->normal);
}
void GLGizmoEmboss::preview_positon() {
Vec2d mouse_pos = m_parent.get_local_mouse_position();
auto rc = m_c->raycaster();
//auto rc2 = rc->raycaster();
static std::unique_ptr<MeshRaycaster> mrc;
if (m_volume == nullptr) return;
// TODO: select hovered volume
static ModelVolume *volume = nullptr;
ModelVolume *prev_volume = volume;
volume = nullptr;
for (ModelVolume *mv : m_volume->get_object()->volumes) {
if (!mv->is_model_part()) continue;
if (mv->text_configuration.has_value()) continue;
volume = mv;
break;
}
if (prev_volume != nullptr && prev_volume != volume) {
// change volume
mrc = nullptr;
}
// no volume for raycast
if (volume == nullptr) return;
if (mrc == nullptr) {
mrc = std::make_unique<MeshRaycaster>(volume->mesh());
}
// find glvolume for transformation
const GLVolume *gl_volume = nullptr;
for (const GLVolume *v : m_parent.get_volumes().volumes) {
auto &cid = v->composite_id;
ObjectID oid = m_parent.get_model()->objects[cid.object_id]->volumes[cid.volume_id]->id();
if (oid != volume->id()) continue;
gl_volume = v;
}
if (gl_volume == nullptr) return;
Transform3d trafo = gl_volume->world_matrix();
const Camera &camera = wxGetApp().plater()->get_camera();
Vec3f position;
Vec3f normal;
size_t face_id;
if (mrc->unproject_on_mesh(mouse_pos, trafo, camera, position, normal, nullptr, &face_id)) {
// draw triangle
auto &its =volume->mesh().its;
auto &triangle = its.indices[face_id];
Points pts;
for (const auto &t : triangle) {
auto &v = its.vertices[t];
Points p = CameraUtils::project(camera,
{trafo * v.cast<double>()});
pts.push_back(p.front());
}
ImGuiWrapper::draw(Polygon(pts));
m_preview.init_from(m_volume->mesh().its);
// up and emboss direction for generated model
Vec3d text_up = Vec3d::UnitY();
Vec3d text_view = Vec3d::UnitZ();
// wanted up direction of result
Vec3d normal_up_dir = Vec3d::UnitZ();
if (abs(normal.z()) > 0.9) normal_up_dir = Vec3d::UnitY();
Vec3d normal3d = normal.cast<double>();
normal3d.normalize(); // after cast from float it needs to be normalized again
// create perpendicular unit vector to surface triangle normal vector
// lay on surface of triangle and define up vector for text
Vec3d normal_up = normal3d.cross(normal_up_dir).cross(normal3d);
normal_up.normalize(); // normal3d is NOT perpendicular to normal_up_dir
// perpendicular to emboss vector of text and normal
Vec3d axis_view = text_view.cross(normal3d);
double angle_view = std::acos(text_view.dot(normal3d)); // in rad
axis_view.normalize();
Eigen::AngleAxis view_rot(angle_view, axis_view);
Vec3d normal_up_rot = view_rot.matrix().inverse() * normal_up;
normal_up_rot.normalize();
double angle_up = std::acos(text_up.dot(normal_up_rot));
// text_view and text_view2 should have same direction
Vec3d text_view2 = text_up.cross(normal_up_rot);
Vec3d diff_view = text_view - text_view2;
if (std::fabs(diff_view.x()) > 1. || std::fabs(diff_view.y()) > 1. ||
std::fabs(diff_view.z()) > 1.) // oposit direction
angle_up *= -1.;
Eigen::AngleAxis up_rot(angle_up, text_view);
Transform3d transform = Transform3d::Identity();
transform.translate(position.cast<double>());
transform.rotate(view_rot);
transform.rotate(up_rot);
transform = get_emboss_transformation(position, normal);
//Transform3d rot = Transform3d::Identity();
//rot.rotate(Eigen::AngleAxis(angle, axis));
m_preview_trmat = trafo * transform;
} else {
m_preview.reset();
}
// draw mouse position
Point mouse_point = mouse_pos.cast<int>();
Slic3r::Polygon mouse_triangle({mouse_point, mouse_point + Point(55, 0),
mouse_point + Point(0, 55)});
ImGuiWrapper::draw(mouse_triangle);
}
void GLGizmoEmboss::draw_font_list()
{
const float & max_width = m_gui_cfg->max_font_name_width;
std::optional<size_t> rename_index;
std::string current_name = imgui_trunc(m_font_list[m_font_selected].name,
max_width);
ImGui::SetNextItemWidth(m_gui_cfg->combo_font_width);
if (ImGui::BeginCombo("##font_selector", current_name.c_str())) {
// first line
if (ImGui::Button(_u8L("Choose font").c_str())) {
choose_font_by_wxdialog();
store_font_list();
ImGui::CloseCurrentPopup();
} else if (ImGui::IsItemHovered())
ImGui::SetTooltip(
_u8L("Choose from installed font inside dialog.").c_str());
#ifdef ALLOW_DEBUG_MODE
ImGui::SameLine();
// select font file by file browser
if (ImGui::Button(_u8L("Add File").c_str())) {
choose_true_type_file();
store_font_list();
ImGui::CloseCurrentPopup();
} else if (ImGui::IsItemHovered()) ImGui::SetTooltip(_u8L("add file with font(.ttf, .ttc)").c_str());
#endif // ALLOW_DEBUG_MODE
ImGui::Separator();
for (FontItem &f : m_font_list) {
ImGui::PushID(f.name.c_str());
std::string name = imgui_trunc(f.name, max_width);
size_t index = &f - &m_font_list.front();
bool is_selected = index == m_font_selected;
auto flags =
ImGuiSelectableFlags_AllowItemOverlap; // allow clic buttons
if (ImGui::Selectable(name.c_str(), is_selected, flags)) {
size_t prev_font_selected = m_font_selected;
m_font_selected = index;
if (!load_font()) {
m_font_selected = prev_font_selected;
} else {
process();
}
} else if (ImGui::IsItemHovered())
ImGui::SetTooltip(f.name.c_str());
// draw buttons rename and delete
ImGui::SameLine();
ImGui::SetCursorPosX(m_gui_cfg->rename_pos_x);
if (draw_button(IconType::rename)) rename_index = index;
ImGui::SameLine();
ImGui::SetCursorPosX(m_gui_cfg->delete_pos_x);
if (draw_button(IconType::erase, is_selected)) {
m_font_list.erase(m_font_list.begin() + index);
// fix selected index
if (index < m_font_selected) --m_font_selected;
store_font_list();
}
ImGui::PopID();
}
ImGui::EndCombo();
}
// rename modal window popup
const char * rename_popup_id = "Rename_font";
static size_t rename_id;
if (rename_index.has_value() && !ImGui::IsPopupOpen(rename_popup_id)) {
ImGui::OpenPopup(rename_popup_id);
rename_id = *rename_index;
}
if (ImGui::BeginPopupModal(rename_popup_id)) {
FontItem & fi = m_font_list[rename_id];
std::string rename_popup =
GUI::format(_u8L("Change font name (%1%): "), fi.name);
ImGui::Text(rename_popup.c_str());
ImGui::SetNextItemWidth(m_gui_cfg->combo_font_width);
if (ImGui::InputText("##font name", &fi.name,
ImGuiInputTextFlags_EnterReturnsTrue) ||
ImGui::Button("ok")) {
ImGui::CloseCurrentPopup();
store_font_list();
}
ImGui::EndPopup();
}
}
void GLGizmoEmboss::draw_text_input()
{
static const ImGuiInputTextFlags flags =
ImGuiInputTextFlags_AllowTabInput | ImGuiInputTextFlags_AutoSelectAll;
ImVector<ImFont *> &fonts = m_imgui_font_atlas.Fonts;
ImFont * imgui_font = fonts.empty() ? nullptr : fonts.front();
bool exist_font = imgui_font != nullptr && imgui_font->IsLoaded();
if (exist_font) ImGui::PushFont(imgui_font);
bool exist_change = false;
float window_height = ImGui::GetWindowHeight();
float minimal_height = m_gui_cfg->draw_advanced ?
m_gui_cfg->minimal_window_size_with_advance.y :
m_gui_cfg->minimal_window_size.y;
float extra_height = window_height - minimal_height;
ImVec2 text_size(m_gui_cfg->text_size.x,
m_gui_cfg->text_size.y + extra_height);
if (ImGui::InputTextMultiline("##Text", &m_text, text_size, flags)) {
process();
exist_change = true;
}
if (exist_font) ImGui::PopFont();
// imgui_font has to be unused
if (exist_change) check_imgui_font_range();
}
void GLGizmoEmboss::draw_advanced()
{
ImGui::SetNextItemWidth(m_gui_cfg->advanced_input_width);
if (ImGui::InputFloat(_u8L("Size[in mm]").c_str(),
&m_font_prop.size_in_mm)) {
if (m_font_prop.size_in_mm < 0.1) m_font_prop.size_in_mm = 10;
// store font size into path
FontItem &fi = m_font_list[m_font_selected];
if (fi.type == WxFontUtils::get_actual_type()) {
std::optional<wxFont> wx_font = WxFontUtils::load_wxFont(fi.path);
if (wx_font.has_value()) {
wx_font->SetPointSize(m_font_prop.size_in_mm);
fi.path = WxFontUtils::store_wxFont(*wx_font);
}
}
load_imgui_font();
if (m_font != nullptr) m_font->cache.clear();
process();
}
ImGui::SetNextItemWidth(m_gui_cfg->advanced_input_width);
if (ImGui::InputFloat(_u8L("Emboss[in mm]").c_str(), &m_font_prop.emboss))
process();
ImGui::SetNextItemWidth(2*m_gui_cfg->advanced_input_width);
if (ImGui::InputInt(_u8L("CharGap[in font points]").c_str(),
&m_font_prop.char_gap))
process();
ImGui::SetNextItemWidth(2*m_gui_cfg->advanced_input_width);
if (ImGui::InputInt(_u8L("LineGap[in font points]").c_str(),
&m_font_prop.line_gap))
process();
// when more collection add selector
if (m_font != nullptr && m_font->count > 1) {
ImGui::SetNextItemWidth(m_gui_cfg->advanced_input_width);
if (ImGui::BeginCombo(_u8L("Font collection").c_str(),
std::to_string(m_font->index).c_str())) {
for (unsigned int i = 0; i < m_font->count; ++i) {
ImGui::PushID(1 << 10 + i);
if (ImGui::Selectable(std::to_string(i).c_str(),
i == m_font->index)) {
m_font->index = i;
m_font->cache.clear();
process();
}
ImGui::PopID();
}
ImGui::EndCombo();
}
}
#ifdef ALLOW_DEBUG_MODE
std::string descriptor = m_font_list[m_font_selected].path;
ImGui::Text("family = %s", (m_font_prop.family.has_value() ?
m_font_prop.family->c_str() :
" --- "));
ImGui::Text("face name = %s", (m_font_prop.face_name.has_value() ?
m_font_prop.face_name->c_str() :
" --- "));
ImGui::Text("style = %s",
(m_font_prop.style.has_value() ? m_font_prop.style->c_str() :
" --- "));
ImGui::Text("weight = %s", (m_font_prop.weight.has_value() ?
m_font_prop.weight->c_str() :
" --- "));
ImGui::Text("descriptor = %s", descriptor.c_str());
ImGui::Image(m_imgui_font_atlas.TexID,
ImVec2(m_imgui_font_atlas.TexWidth,
m_imgui_font_atlas.TexHeight));
#endif // ALLOW_DEBUG_MODE
}
bool GLGizmoEmboss::load_font(size_t font_index)
{
std::swap(font_index, m_font_selected);
bool is_loaded = load_font();
if (!is_loaded) std::swap(font_index, m_font_selected);
return is_loaded;
}
bool GLGizmoEmboss::load_font()
{
if (m_font_selected >= m_font_list.size()) return false;
FontItem &fi = m_font_list[m_font_selected];
if (fi.type == FontItem::Type::file_path) {
// fill font name after load from .3mf
if (fi.name.empty())
fi.name = Slic3r::GUI::GLGizmoEmboss::get_file_name(fi.path);
std::optional<Emboss::Font> font_opt = Emboss::load_font(
fi.path.c_str());
if (!font_opt.has_value()) return false;
// TODO: fix copy of font data
m_font = std::make_shared<Emboss::Font>(std::move(*font_opt));
load_imgui_font();
return true;
}
if (fi.type != WxFontUtils::get_actual_type()) return false;
std::optional<wxFont> wx_font = WxFontUtils::load_wxFont(fi.path);
if (!wx_font.has_value()) return false;
// fill font name after load from .3mf
if (fi.name.empty())
fi.name = WxFontUtils::get_human_readable_name(*wx_font);
return load_font(*wx_font);
}
bool GLGizmoEmboss::load_font(const wxFont &font)
{
auto font_opt = WxFontUtils::load_font(font);
if (!font_opt.has_value()) return false;
// TODO: fix copy of font data
m_font = std::make_shared<Emboss::Font>(std::move(*font_opt));
WxFontUtils::update_property(m_font_prop, font);
m_font_prop.emboss = m_font_prop.size_in_mm / 2.f;
load_imgui_font();
return true;
}
void GLGizmoEmboss::check_imgui_font_range()
{
const char *text = m_text.c_str();
const ImFont *font = m_imgui_font_atlas.Fonts.front();
if (!font->IsLoaded()) {
// when create font no one letter in text was inside font
// check text again
load_imgui_font();
return;
}
if (font->ConfigData == nullptr) return;
const ImWchar *ranges = font->ConfigData->GlyphRanges;
auto is_in_ranges = [ranges](unsigned int letter) -> bool {
for (const ImWchar *range = ranges; range[0] && range[1]; range += 2) {
ImWchar from = range[0];
ImWchar to = range[1];
if (from <= letter && letter <= to) return true;
if (letter < to) return false; // ranges should be sorted
}
return false;
};
bool exist_unknown = false;
while (*text) {
unsigned int c = 0;
int c_len = ImTextCharFromUtf8(&c, text, NULL);
text += c_len;
if (c_len == 0) break;
if (!is_in_ranges(c)) {
exist_unknown = true;
break;
}
}
if (exist_unknown) load_imgui_font();
}
void GLGizmoEmboss::load_imgui_font()
{
if (m_font == nullptr) return;
ImFontGlyphRangesBuilder builder;
builder.AddRanges(m_imgui->get_glyph_ranges());
builder.AddText(m_text.c_str());
m_imgui_font_ranges.clear();
builder.BuildRanges(&m_imgui_font_ranges);
int font_size = static_cast<int>(
std::round(std::abs(m_font_prop.size_in_mm / 0.3528)));
if (font_size < m_gui_cfg->min_imgui_font_size)
font_size = m_gui_cfg->min_imgui_font_size;
if (font_size > m_gui_cfg->max_imgui_font_size)
font_size = m_gui_cfg->max_imgui_font_size;
ImFontConfig font_config;
font_config.FontDataOwnedByAtlas = false;
m_imgui_font_atlas.Flags |= ImFontAtlasFlags_NoMouseCursors |
ImFontAtlasFlags_NoPowerOfTwoHeight;
m_imgui_font_atlas.Clear();
m_imgui_font_atlas.AddFontFromMemoryTTF((void *) m_font->buffer.data(),
m_font->buffer.size(), font_size,
&font_config,
m_imgui_font_ranges.Data);
unsigned char *pixels;
int width, height;
m_imgui_font_atlas.GetTexDataAsAlpha8(&pixels, &width, &height);
// Upload texture to graphics system
GLint last_texture;
glsafe(::glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture));
ScopeGuard sg([last_texture]() {
glsafe(::glBindTexture(GL_TEXTURE_2D, last_texture));
});
GLuint font_texture;
glsafe(::glGenTextures(1, &font_texture));
glsafe(::glBindTexture(GL_TEXTURE_2D, font_texture));
glsafe(::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
glsafe(::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
glsafe(::glPixelStorei(GL_UNPACK_ROW_LENGTH, 0));
glsafe(::glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, width, height, 0,
GL_ALPHA, GL_UNSIGNED_BYTE, pixels));
// Store our identifier
m_imgui_font_atlas.TexID = (ImTextureID) (intptr_t) font_texture;
}
bool GLGizmoEmboss::choose_font_by_wxdialog()
{
wxFontData data;
data.EnableEffects(false);
data.RestrictSelection(wxFONTRESTRICT_SCALABLE);
// set previous selected font
FontItem &selected_font_item = m_font_list[m_font_selected];
if (selected_font_item.type == WxFontUtils::get_actual_type()) {
std::optional<wxFont> selected_font = WxFontUtils::load_wxFont(
selected_font_item.path);
if (selected_font.has_value()) data.SetInitialFont(*selected_font);
}
wxFontDialog font_dialog(wxGetApp().mainframe, data);
if (font_dialog.ShowModal() != wxID_OK) return false;
data = font_dialog.GetFontData();
wxFont font = data.GetChosenFont();
size_t font_index = m_font_list.size();
FontItem font_item = WxFontUtils::get_font_item(font);
m_font_list.emplace_back(font_item);
FontProp old_font_prop = m_font_prop; // copy
// Check that deserialization NOT influence font
// false - use direct selected wxFont in dialog
// true - use font item (serialize and deserialize wxFont)
bool use_deserialized_font = false;
if (!use_deserialized_font) m_font_selected = font_index;
// Try load and use new added font
if ((!use_deserialized_font && !load_font(font)) ||
(use_deserialized_font && !load_font(font_index)) || !process()) {
// reverse index for font_selected
std::swap(font_index, m_font_selected); // when not process
// remove form font list
m_font_list.pop_back();
// reverse property
m_font_prop = old_font_prop; // when not process
wxString message = GUI::format_wxstr(
_L("Font '%1%' can't be used. Please select another."),
font_item.name);
wxString title = _L("Selected font is NOT True-type.");
MessageDialog not_loaded_font_message(nullptr, message, title, wxOK);
not_loaded_font_message.ShowModal();
return choose_font_by_wxdialog();
}
return true;
}
bool GLGizmoEmboss::choose_true_type_file()
{
wxArrayString input_files;
wxString fontDir = wxEmptyString;
wxString selectedFile = wxEmptyString;
wxFileDialog dialog(nullptr, _L("Choose one or more files (TTF, TTC):"),
fontDir, selectedFile, file_wildcards(FT_FONTS),
wxFD_OPEN | wxFD_MULTIPLE | wxFD_FILE_MUST_EXIST);
if (dialog.ShowModal() == wxID_OK) dialog.GetPaths(input_files);
if (input_files.IsEmpty()) return false;
bool font_loaded = false;
for (auto &input_file : input_files) {
std::string path = std::string(input_file.c_str());
std::string name = get_file_name(path);
m_font_list.emplace_back(name, path, FontItem::Type::file_path);
// set first valid added font as active
if (!font_loaded) {
if (!load_font(m_font_list.size() - 1))
m_font_list.pop_back();
else
font_loaded = true;
}
}
if (font_loaded) process();
return font_loaded;
}
bool GLGizmoEmboss::choose_svg_file()
{
wxArrayString input_files;
wxString fontDir = wxEmptyString;
wxString selectedFile = wxEmptyString;
wxFileDialog dialog(nullptr, _L("Choose SVG file:"), fontDir,
selectedFile, file_wildcards(FT_SVG),
wxFD_OPEN | wxFD_FILE_MUST_EXIST);
if (dialog.ShowModal() == wxID_OK) dialog.GetPaths(input_files);
if (input_files.IsEmpty()) return false;
if (input_files.size() != 1) return false;
auto & input_file = input_files.front();
std::string path = std::string(input_file.c_str());
std::string name = get_file_name(path);
NSVGimage *image = nsvgParseFromFile(path.c_str(), "mm", 96.0f);
ExPolygons polys = NSVGUtils::to_ExPolygons(image);
nsvgDelete(image);
BoundingBox bb;
for (const auto &p : polys) bb.merge(p.contour.points);
float scale = m_font_prop.size_in_mm / std::max(bb.max.x(), bb.max.y());
auto project = std::make_unique<Emboss::ProjectScale>(
std::make_unique<Emboss::ProjectZ>(m_font_prop.emboss / scale), scale);
indexed_triangle_set its = Emboss::polygons2model(polys, *project);
return false;
// test store:
// for (auto &poly : polys) poly.scale(1e5);
// SVG svg("converted.svg", BoundingBox(polys.front().contour.points));
// svg.draw(polys);
//return add_volume(name, its);
}
TextConfiguration GLGizmoEmboss::create_configuration()
{
return TextConfiguration(m_font_list[m_font_selected], m_font_prop,
m_text);
}
bool GLGizmoEmboss::load_configuration(ModelVolume *volume)
{
if (volume == nullptr) return false;
if (!volume->text_configuration.has_value()) return false;
TextConfiguration &configuration = *volume->text_configuration;
FontItem & c_font_item = configuration.font_item;
// try to find font in local font list
auto is_config = [&c_font_item](const FontItem &font_item) -> bool {
return font_item.path == c_font_item.path;
};
auto it = std::find_if(m_font_list.begin(), m_font_list.end(), is_config);
size_t prev_font_selected = m_font_selected;
if (it == m_font_list.end()) {
// font is not in list
// add font to list
m_font_selected = m_font_list.size();
m_font_list.emplace_back(c_font_item);
} else {
// font is found in list
m_font_selected = it - m_font_list.begin();
}
m_font_prop = configuration.font_prop;
m_text = configuration.text;
m_volume = volume;
if (!load_font()) {
// create similar font
auto wx_font = WxFontUtils::create_wxFont(c_font_item,
configuration.font_prop);
if (wx_font.has_value()) {
// fix not loadable font item
m_font_list[m_font_selected] = WxFontUtils::get_font_item(
*wx_font);
if (!load_font(*wx_font)) return false;
} else {
// can't create similar font use previous
m_font_list.erase(m_font_list.begin() + m_font_selected);
m_font_selected = prev_font_selected;
if (!load_font()) return false;
}
create_notification_not_valid_font(configuration);
}
return true;
}
void GLGizmoEmboss::create_notification_not_valid_font(
const TextConfiguration &tc)
{
// not neccessary, but for sure that old notification doesnt exist
if (m_exist_notification) remove_notification_not_valid_font();
m_exist_notification = true;
auto type = NotificationType::UnknownFont;
auto level =
NotificationManager::NotificationLevel::WarningNotificationLevel;
const auto &origin_family = tc.font_prop.face_name;
const auto &actual_family = m_font_prop.face_name;
const auto &fi = m_font_list[m_font_selected];
const std::string &origin_font_name = origin_family.has_value() ?
*origin_family :
tc.font_item.path;
const std::string &actual_font_name = actual_family.has_value() ?
*actual_family :
fi.name;
std::string text =
GUI::format(_L("Can't load exactly same font(\"%1%\"), "
"Aplication select similar one(\"%2%\"). "
"When you edit text, similar font will be applied."),
origin_font_name, actual_font_name);
auto notification_manager = wxGetApp().plater()->get_notification_manager();
notification_manager->push_notification(type, level, text);
}
void GLGizmoEmboss::remove_notification_not_valid_font()
{
if (!m_exist_notification) return;
m_exist_notification = false;
auto type = NotificationType::UnknownFont;
auto notification_manager = wxGetApp().plater()->get_notification_manager();
notification_manager->close_notification_of_type(type);
}
std::string GLGizmoEmboss::create_volume_name()
{
const size_t &max_len = m_gui_cfg->max_count_char_in_volume_name;
return _u8L("Text") + " - " +
((m_text.size() > max_len) ?
(m_text.substr(0, max_len - 3) + " ..") :
m_text);
}
bool GLGizmoEmboss::init_icons()
{
std::string path = resources_dir() + "/icons/white/";
// icon order has to match the enum IconType
std::vector<std::string> filenames = {path + "wrench.svg",
path + "delete.svg"};
// state order has to match the enum IconState
std::vector<std::pair<int, bool>> states;
states.push_back(std::make_pair(1, false)); // Activable
states.push_back(std::make_pair(0, true)); // Hovered
states.push_back(std::make_pair(2, false)); // Disabled
unsigned int sprite_size_px = std::ceil(m_gui_cfg->icon_width);
// make size pair number
if (sprite_size_px % 2 != 0) ++sprite_size_px;
bool compress = false;
return m_icons_texture.load_from_svg_files_as_sprites_array(filenames,
states,
sprite_size_px,
compress);
}
void GLGizmoEmboss::draw_icon(IconType icon, IconState state)
{
unsigned int icons_texture_id = m_icons_texture.get_id();
int tex_width = m_icons_texture.get_width();
int tex_height = m_icons_texture.get_height();
// is icon loaded
if ((icons_texture_id == 0) || (tex_width <= 1) || (tex_height <= 1))
return;
ImTextureID tex_id = (void *) (intptr_t) (GLuint) icons_texture_id;
// ImVec2 image_size(tex_width, tex_height);
size_t count_icons = 2; // wrench | delete
size_t count_states = 3; // activable | hovered | disabled
ImVec2 icon_size(tex_width / count_states, tex_height / count_icons);
ImVec2 start(static_cast<unsigned>(state) * icon_size.x,
static_cast<unsigned>(icon) * icon_size.y);
ImVec2 uv0(start.x / tex_width, start.y / tex_height);
ImVec2 uv1((start.x + icon_size.x) / tex_width,
(start.y + icon_size.y) / tex_height);
ImGui::Image(tex_id, icon_size, uv0, uv1);
}
bool GLGizmoEmboss::draw_button(IconType icon, bool disable)
{
float line_spacing = ImGui::GetTextLineHeightWithSpacing() -
ImGui::GetTextLineHeight();
float cursor_pos_y = ImGui::GetCursorPosY();
ImGui::SetCursorPosY(cursor_pos_y - line_spacing / 2);
ScopeGuard sg([cursor_pos_y]() {
ImGui::SetCursorPosY(cursor_pos_y);
ImGui::NewLine();
});
if (disable) {
draw_icon(icon, IconState::disabled);
if (ImGui::IsItemHovered() && icon == IconType::erase)
ImGui::SetTooltip(_u8L("Active font can't be removed").c_str());
return false;
}
float cursor_x = ImGui::GetCursorPosX();
draw_icon(icon, IconState::activable);
if (ImGui::IsItemClicked()) return true;
if (ImGui::IsItemHovered()) {
switch (icon) {
case IconType::rename:
ImGui::SetTooltip(_u8L("rename").c_str());
break;
case IconType::erase:
ImGui::SetTooltip(_u8L("delete").c_str());
break;
default: break;
}
// redraw image over previous
ImGui::SameLine();
ImGui::SetCursorPosX(cursor_x);
draw_icon(icon, IconState::hovered);
if (ImGui::IsItemClicked()) return true;
}
return false;
}
void GLGizmoEmboss::load_font_list()
{
const AppConfig *cfg = wxGetApp().app_config;
unsigned index = 1;
std::string section_name = get_app_config_font_section(index++);
while (cfg->has_section(section_name)) {
std::optional<FontItem> fi = get_font_item(
cfg->get_section(section_name));
if (fi.has_value()) m_font_list.emplace_back(*fi);
section_name = get_app_config_font_section(index++);
}
if (m_font_list.empty()) m_font_list = create_default_font_list();
}
void GLGizmoEmboss::store_font_list()
{
AppConfig *cfg = wxGetApp().app_config;
unsigned index = 1;
for (const FontItem &fi : m_font_list) {
// skip file paths + fonts from other OS
if (fi.type != WxFontUtils::get_actual_type()) continue;
set_font_item(*cfg, fi, index++);
}
// remove rest of font sections
std::string section_name = get_app_config_font_section(index);
while (cfg->has_section(section_name)) {
cfg->clear_section(section_name);
section_name = get_app_config_font_section(++index);
}
}
const std::string GLGizmoEmboss::APP_CONFIG_FONT_NAME = "name";
const std::string GLGizmoEmboss::APP_CONFIG_FONT_DESCRIPTOR = "descriptor";
std::string GLGizmoEmboss::get_app_config_font_section(unsigned index)
{
return AppConfig::SECTION_FONT + ':' + std::to_string(index);
}
std::optional<FontItem> GLGizmoEmboss::get_font_item(
const std::map<std::string, std::string> &app_cfg_section)
{
auto path_it = app_cfg_section.find(APP_CONFIG_FONT_DESCRIPTOR);
if (path_it == app_cfg_section.end()) return {};
const std::string &path = path_it->second;
auto name_it = app_cfg_section.find(APP_CONFIG_FONT_NAME);
static const std::string default_name = "font_name";
const std::string & name = (name_it == app_cfg_section.end()) ?
default_name :
name_it->second;
return FontItem(name, path, WxFontUtils::get_actual_type());
}
void GLGizmoEmboss::set_font_item(AppConfig & cfg,
const FontItem &fi,
unsigned index)
{
std::string section_name = get_app_config_font_section(index);
cfg.clear_section(section_name);
cfg.set(section_name, APP_CONFIG_FONT_NAME, fi.name);
cfg.set(section_name, APP_CONFIG_FONT_DESCRIPTOR, fi.path);
}
std::string GLGizmoEmboss::get_file_name(const std::string &file_path)
{
size_t pos_last_delimiter = file_path.find_last_of('\\');
size_t pos_point = file_path.find_last_of('.');
size_t offset = pos_last_delimiter + 1;
size_t count = pos_point - pos_last_delimiter - 1;
return file_path.substr(offset, count);
}
std::string GLGizmoEmboss::imgui_trunc(const std::string &text, float width)
{
static const char *tail = " ..";
float tail_width = ImGui::CalcTextSize(tail).x;
float text_width = ImGui::CalcTextSize(text.c_str()).x;
if (text_width < width) return text;
float letter_width = ImGui::CalcTextSize("n").x;
float allowed_width = width - tail_width;
unsigned count_letter = static_cast<unsigned>(allowed_width /
letter_width);
text_width = ImGui::CalcTextSize(text.substr(0, count_letter).c_str()).x;
if (text_width < allowed_width) {
// increase letter count
do {
++count_letter;
text_width =
ImGui::CalcTextSize(text.substr(0, count_letter).c_str()).x;
} while (text_width < allowed_width);
--count_letter;
} else {
// decrease letter count
do {
--count_letter;
text_width =
ImGui::CalcTextSize(text.substr(0, count_letter).c_str()).x;
} while (text_width > allowed_width);
}
return text.substr(0, count_letter) + tail;
}
namespace Slic3r {
class Priv
{
public:
Priv() = delete;
struct EmbossObject
{
TriangleMesh mesh;
std::string name;
TextConfiguration cfg;
EmbossObject(TriangleMesh && mesh,
std::string name,
TextConfiguration cfg)
: mesh(std::move(mesh)), name(name), cfg(cfg)
{}
};
struct EmbossVolume : public EmbossObject
{
ModelVolumeType type;
size_t object_idx;
Transform3d transformation;
EmbossVolume(TriangleMesh && mesh,
Transform3d transformation,
std::string name,
TextConfiguration cfg,
ModelVolumeType type,
size_t object_idx)
: EmbossObject(std::move(mesh), name, cfg)
, transformation(transformation)
, type(type)
, object_idx(object_idx)
{}
};
struct UpdateVolume
{
TriangleMesh mesh;
std::string name;
TextConfiguration cfg;
ModelVolume * volume;
UpdateVolume(TriangleMesh && mesh,
std::string name,
TextConfiguration cfg,
ModelVolume * volume)
: mesh(std::move(mesh)), name(name), cfg(cfg), volume(volume)
{}
};
static void create_emboss_object(EmbossObject &data);
static void create_emboss_volume(EmbossVolume &data);
static void update_emboss_volume(UpdateVolume &data);
};
} // namespace Slic3r
void GLGizmoEmboss::create_emboss_object(TriangleMesh && mesh,
std::string name,
TextConfiguration cfg)
{
// Move data to call after is not working
// data are owen by lambda
auto data = new Priv::EmbossObject(std::move(mesh), name, cfg);
wxGetApp().plater()->CallAfter([data]() {
ScopeGuard sg([data]() { delete data; });
Priv::create_emboss_object(*data);
});
}
void GLGizmoEmboss::create_emboss_volume(TriangleMesh && mesh,
Transform3d transformation,
std::string name,
TextConfiguration cfg,
ModelVolumeType type,
size_t object_idx)
{
// Move data to call after is not working
// data are owen by lambda
auto data = new Priv::EmbossVolume(std::move(mesh), transformation, name, cfg, type,
object_idx);
wxGetApp().plater()->CallAfter([data]() {
ScopeGuard sg([data]() { delete data; });
Priv::create_emboss_volume(*data);
});
}
void GLGizmoEmboss::update_emboss_volume(TriangleMesh && mesh,
std::string name,
TextConfiguration cfg,
ModelVolume * volume)
{
assert(volume != nullptr);
// Move data to call after is not working
// data are owen by lambda
auto data = new Priv::UpdateVolume(std::move(mesh), name, cfg, volume);
wxGetApp().plater()->CallAfter([data]() {
ScopeGuard sg([data]() { delete data; });
Priv::update_emboss_volume(*data);
});
}
void Priv::create_emboss_object(EmbossObject &data)
{
GUI_App & app = wxGetApp();
Plater * plater = app.plater();
ObjectList * obj_list = app.obj_list();
GLCanvas3D * canvas = plater->canvas3D();
GLGizmosManager &manager = canvas->get_gizmos_manager();
plater->take_snapshot(_L("Add Emboss text object"));
// Create new object and change selection
bool center = true;
obj_list->load_mesh_object(std::move(data.mesh), data.name, center,
&data.cfg);
// new object successfuly added so open gizmo
assert(manager.get_current_type() != GLGizmosManager::Emboss);
manager.open_gizmo(GLGizmosManager::Emboss);
// redraw scene
canvas->reload_scene(true);
// Gizmo is not open during time of creation object
// When cursor move and no one object is selected than Manager::reset_all()
}
void Priv::create_emboss_volume(EmbossVolume &data)
{
GUI_App & app = wxGetApp();
Plater * plater = app.plater();
ObjectList *obj_list = app.obj_list();
GLCanvas3D *canvas = plater->canvas3D();
size_t object_idx = data.object_idx;
ModelVolumeType type = data.type;
// create new volume inside of object
Model &model = plater->model();
if (model.objects.size() <= object_idx) return;
ModelObject *obj = model.objects[object_idx];
ModelVolume *volume = obj->add_volume(std::move(data.mesh));
// set a default extruder value, since user can't add it manually
volume->config.set_key_value("extruder", new ConfigOptionInt(0));
// do not allow model reload from disk
volume->source.is_from_builtin_objects = true;
volume->set_type(type);
volume->name = data.name;
volume->text_configuration = data.cfg;
volume->set_transformation(data.transformation);
// update volume name in object list
// updata selection after new volume added
// change name of volume in right panel
// select only actual volume
// when new volume is created change selection to this volume
auto add_to_selection = [volume](const ModelVolume *vol) {
return vol == volume;
};
wxDataViewItemArray sel =
obj_list->reorder_volumes_and_get_selection((int) object_idx,
add_to_selection);
if (!sel.IsEmpty()) obj_list->select_item(sel.front());
// update printable state on canvas
if (type == ModelVolumeType::MODEL_PART)
canvas->update_instance_printable_state_for_object(object_idx);
obj_list->selection_changed();
// redraw scene
canvas->reload_scene(true);
}
void Priv::update_emboss_volume(UpdateVolume &data) {
GUI_App & app = wxGetApp(); // may be move to input
Plater * plater = app.plater();
ObjectList * obj_list = app.obj_list();
GLCanvas3D * canvas = plater->canvas3D();
GLGizmosManager &manager = canvas->get_gizmos_manager();
// Check emboss gizmo is still open
if (manager.get_current_type() != GLGizmosManager::Emboss) return;
const std::string &name = data.name;
plater->take_snapshot(_L("Emboss text") + ": " + name);
// find volume by object id - NOT WORK
// -> edit text change volume id so could apper not found volume
//ModelVolume *volume = nullptr;
//Model &model = plater->model();
//for (auto obj : model.objects)
// for (auto vol : obj->volumes)
// if (vol->id() == volume_id) {
// volume = vol;
// break;
// }
//if (volume == nullptr) return;
ModelVolume *volume = data.volume;
assert(volume != nullptr);
// update volume
volume->set_mesh(std::move(data.mesh));
volume->set_new_unique_id();
volume->calculate_convex_hull();
volume->get_object()->invalidate_bounding_box();
volume->name = name;
volume->text_configuration = data.cfg;
// update volume in right panel( volume / object name)
const Selection &selection = canvas->get_selection();
const GLVolume * v = selection.get_volume(
*selection.get_volume_idxs().begin());
int object_idx = v->object_idx();
int volume_idx = v->volume_idx();
obj_list->update_name_in_list(object_idx, volume_idx);
// update printable state on canvas
if (volume->type() == ModelVolumeType::MODEL_PART)
canvas->update_instance_printable_state_for_object(
(size_t) object_idx);
// redraw scene
canvas->reload_scene(true);
}
/// <summary>
/// WxFontUtils - Start definition
/// </summary>
std::optional<Emboss::Font> WxFontUtils::load_font(const wxFont &font)
{
if (!font.IsOk()) return {};
#ifdef _WIN32
return Emboss::load_font(font.GetHFONT());
#elif defined(__APPLE__)
// use file path
const wxNativeFontInfo *info = font.GetNativeFontInfo();
if (info == nullptr) return {};
CTFontDescriptorRef descriptor = info->GetCTFontDescriptor();
CFURLRef typeref = (CFURLRef)
CTFontDescriptorCopyAttribute(descriptor, kCTFontURLAttribute);
CFStringRef url = CFURLGetString(typeref);
if (url == NULL) return {};
wxString file_uri;
wxCFTypeRef(url).GetValue(file_uri);
std::string file_path(wxURI::Unescape(file_uri).c_str());
size_t start = std::string("file://").size();
if (file_path.empty() || file_path.size() <= start) return {};
file_path = file_path.substr(start, file_path.size() - start);
return Emboss::load_font(file_path.c_str());
#elif defined(__linux__)
static FontConfigHelp help;
std::string font_path = help.get_font_path(font);
if (font_path.empty()) return {};
return Emboss::load_font(font_path.c_str());
#else
// HERE is place to add implementation for another platform
// to convert wxFont to font data as windows or font file path as linux
return {};
#endif
}
FontItem::Type WxFontUtils::get_actual_type()
{
#ifdef _WIN32
return FontItem::Type::wx_win_font_descr;
#elif defined(__APPLE__)
return FontItem::Type::wx_mac_font_descr;
#elif defined(__linux__)
return FontItem::Type::wx_mac_font_descr;
#else
return FontItem::Type::undefined;
#endif
}
FontItem WxFontUtils::get_font_item(const wxFont &font)
{
std::string name = get_human_readable_name(font);
std::string fontDesc = store_wxFont(font);
FontItem::Type type = get_actual_type();
// wxFont f = font; // copy
return FontItem(name, fontDesc, type);
}
FontItem WxFontUtils::get_os_font()
{
wxSystemFont system_font = wxSYS_DEFAULT_GUI_FONT;
wxFont font = wxSystemSettings::GetFont(system_font);
FontItem fi = get_font_item(font);
fi.name += std::string(" (" + _u8L("OS default") + ")");
return get_font_item(font);
}
std::string WxFontUtils::get_human_readable_name(const wxFont &font)
{
if (!font.IsOk()) return "Font is NOT ok.";
// Face name is optional in wxFont
if (!font.GetFaceName().empty()) {
return std::string(font.GetFaceName().c_str());
} else {
return std::string((font.GetFamilyString() + " " +
font.GetStyleString() + " " +
font.GetWeightString())
.c_str());
}
}
std::string WxFontUtils::store_wxFont(const wxFont &font)
{
// wxString os = wxPlatformInfo::Get().GetOperatingSystemIdName();
wxString font_descriptor = font.GetNativeFontInfoDesc();
return std::string(font_descriptor.c_str());
}
std::optional<wxFont> WxFontUtils::load_wxFont(
const std::string &font_descriptor)
{
wxString font_descriptor_wx(font_descriptor);
wxFont wx_font(font_descriptor_wx);
if (!wx_font.IsOk()) return {};
return wx_font;
}
const std::map<wxFontFamily, std::string> WxFontUtils::from_family(
{{wxFONTFAMILY_DEFAULT, "default"},
{wxFONTFAMILY_DECORATIVE, "decorative"},
{wxFONTFAMILY_ROMAN, "roman"},
{wxFONTFAMILY_SCRIPT, "script"},
{wxFONTFAMILY_SWISS, "swiss"},
{wxFONTFAMILY_MODERN, "modern"},
{wxFONTFAMILY_TELETYPE, "teletype"},
{wxFONTFAMILY_MAX, "max"},
{wxFONTFAMILY_UNKNOWN, "unknown"}});
const std::map<std::string, wxFontFamily> WxFontUtils::to_family =
MapUtils::create_oposit(WxFontUtils::from_family);
const std::map<wxFontStyle, std::string> WxFontUtils::from_style(
{{wxFONTSTYLE_ITALIC, "italic"},
{wxFONTSTYLE_SLANT, "slant"},
{wxFONTSTYLE_NORMAL, "normal"}});
const std::map<std::string, wxFontStyle> WxFontUtils::to_style =
MapUtils::create_oposit(WxFontUtils::from_style);
const std::map<wxFontWeight, std::string> WxFontUtils::from_weight(
{{wxFONTWEIGHT_THIN, "thin"},
{wxFONTWEIGHT_EXTRALIGHT, "extraLight"},
{wxFONTWEIGHT_LIGHT, "light"},
{wxFONTWEIGHT_NORMAL, "normal"},
{wxFONTWEIGHT_MEDIUM, "medium"},
{wxFONTWEIGHT_SEMIBOLD, "semibold"},
{wxFONTWEIGHT_BOLD, "bold"},
{wxFONTWEIGHT_EXTRABOLD, "extraBold"},
{wxFONTWEIGHT_HEAVY, "heavy"},
{wxFONTWEIGHT_EXTRAHEAVY, "extraHeavy"}});
const std::map<std::string, wxFontWeight> WxFontUtils::to_weight =
MapUtils::create_oposit(WxFontUtils::from_weight);
std::optional<wxFont> WxFontUtils::create_wxFont(const FontItem &fi,
const FontProp &fp)
{
double point_size = static_cast<double>(fp.size_in_mm);
wxFontInfo info(point_size);
if (fp.family.has_value()) {
auto it = to_family.find(*fp.style);
if (it != to_family.end()) info.Family(it->second);
}
if (fp.face_name.has_value()) {
wxString face_name(*fp.face_name);
info.FaceName(face_name);
}
if (fp.style.has_value()) {
auto it = to_style.find(*fp.style);
if (it != to_style.end()) info.Style(it->second);
}
if (fp.weight.has_value()) {
auto it = to_weight.find(*fp.weight);
if (it != to_weight.end()) info.Weight(it->second);
}
// Improve: load descriptor instead of store to font property to 3mf
// switch (fi.type) {
// case FontItem::Type::wx_lin_font_descr:
// case FontItem::Type::wx_win_font_descr:
// case FontItem::Type::file_path:
// case FontItem::Type::undefined:
// default:
//}
wxFont font(info);
if (!font.IsOk()) return {};
return font;
}
void WxFontUtils::update_property(FontProp &font_prop, const wxFont &font)
{
// The point size is defined as 1/72 of the Anglo-Saxon inch (25.4 mm): it
// is approximately 0.0139 inch or 352.8 um. But it is too small, so I
// decide use point size as mm for emboss
font_prop.size_in_mm = font.GetPointSize(); // *0.3528f;
wxString wx_face_name = font.GetFaceName();
std::string face_name((const char *) wx_face_name.ToUTF8());
if (!face_name.empty()) font_prop.face_name = face_name;
wxFontFamily wx_family = font.GetFamily();
if (wx_family != wxFONTFAMILY_DEFAULT) {
auto it = from_family.find(wx_family);
if (it != from_family.end()) font_prop.family = it->second;
}
wxFontStyle wx_style = font.GetStyle();
if (wx_style != wxFONTSTYLE_NORMAL) {
auto it = from_style.find(wx_style);
if (it != from_style.end()) font_prop.style = it->second;
}
wxFontWeight wx_weight = font.GetWeight();
if (wx_weight != wxFONTWEIGHT_NORMAL) {
auto it = from_weight.find(wx_weight);
if (it != from_weight.end()) font_prop.weight = it->second;
}
}
void NSVGUtils::flatten_cubic_bez(Polygon &polygon,
float tessTol,
Vec2f p1,
Vec2f p2,
Vec2f p3,
Vec2f p4,
int level)
{
Vec2f p12 = (p1 + p2) * 0.5f;
Vec2f p23 = (p2 + p3) * 0.5f;
Vec2f p34 = (p3 + p4) * 0.5f;
Vec2f p123 = (p12 + p23) * 0.5f;
Vec2f pd = p4 - p1;
Vec2f pd2 = p2 - p4;
float d2 = std::abs(pd2.x() * pd.y() - pd2.y() * pd.x());
Vec2f pd3 = p3 - p4;
float d3 = std::abs(pd3.x() * pd.y() - pd3.y() * pd.x());
float d23 = d2 + d3;
if ((d23 * d23) < tessTol * (pd.x() * pd.x() + pd.y() * pd.y())) {
polygon.points.emplace_back(p4.x(), p4.y());
return;
}
--level;
if (level == 0) return;
Vec2f p234 = (p23 + p34) * 0.5f;
Vec2f p1234 = (p123 + p234) * 0.5f;
flatten_cubic_bez(polygon, tessTol, p1, p12, p123, p1234, level);
flatten_cubic_bez(polygon, tessTol, p1234, p234, p34, p4, level);
}
ExPolygons NSVGUtils::to_ExPolygons(NSVGimage *image,
float tessTol,
int max_level)
{
Polygons polygons;
for (NSVGshape *shape = image->shapes; shape != NULL;
shape = shape->next) {
if (!(shape->flags & NSVG_FLAGS_VISIBLE)) continue;
Slic3r::Polygon polygon;
if (shape->fill.type != NSVG_PAINT_NONE) {
for (NSVGpath *path = shape->paths; path != NULL;
path = path->next) {
// Flatten path
polygon.points.emplace_back(path->pts[0], path->pts[1]);
for (size_t i = 0; i < path->npts - 1; i += 3) {
float *p = &path->pts[i * 2];
Vec2f p1(p[0], p[1]), p2(p[2], p[3]), p3(p[4], p[5]),
p4(p[6], p[7]);
flatten_cubic_bez(polygon, tessTol, p1, p2, p3, p4,
max_level);
}
if (path->closed) {
polygons.push_back(polygon);
polygon = Slic3r::Polygon();
}
}
}
polygons.push_back(polygon);
}
// Fix Y axis
for (Polygon &polygon : polygons)
for (Point &p : polygon.points) p.y() *= -1;
return Slic3r::union_ex(polygons);
}
// any existing icon filename to not influence GUI
const std::string GLGizmoEmboss::M_ICON_FILENAME = "cut.svg";
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