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OrcaSlicer/src/slic3r/GUI/FilamentBitmapUtils.cpp
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2026-08-23 22:43:41 +08:00

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17 KiB
C++

#include <wx/dcmemory.h>
#include <wx/graphics.h>
#include <algorithm>
#include <cmath>
#include "EncodedFilament.hpp"
#include "FilamentBitmapUtils.hpp"
#include "GUI_App.hpp"
#include "libslic3r/FilamentMixer.hpp"
#include "libslic3r/PrintConfig.hpp"
namespace Slic3r { namespace GUI {
void fill_gradient_rect_east(wxDC& dc, const wxRect& rect, const wxColour& from, const wxColour& to)
{
if (rect.width <= 0 || rect.height <= 0) return;
auto mix_channel = [](unsigned char a, unsigned char b, double t) {
return static_cast<unsigned char>(a + (b - a) * t + 0.5);
};
dc.SetPen(*wxTRANSPARENT_PEN);
for (int x = 0; x < rect.width; ++x) {
const double t = rect.width > 1 ? static_cast<double>(x) / (rect.width - 1) : 0.0;
const wxColour col(mix_channel(from.Red(), to.Red(), t),
mix_channel(from.Green(), to.Green(), t),
mix_channel(from.Blue(), to.Blue(), t),
mix_channel(from.Alpha(), to.Alpha(), t));
dc.SetBrush(wxBrush(col));
dc.DrawRectangle(rect.x + x, rect.y, 1, rect.height);
}
}
static std::string to_hex(const wxColour& c)
{
return wxString::Format("#%02X%02X%02X", c.Red(), c.Green(), c.Blue()).ToStdString();
}
wxColour blend_n_colors(const std::vector<wxColour>& cols, const std::vector<double>& weights)
{
const size_t n = std::min(cols.size(), weights.size());
std::vector<std::string> hex_colors;
std::vector<int> int_weights;
hex_colors.reserve(n);
int_weights.reserve(n);
for (size_t i = 0; i < n; ++i) {
hex_colors.push_back(to_hex(cols[i]));
// Scale double weights (e.g. 0.5) to int (5000) for blend_color_multi;
// only relative magnitude matters.
int_weights.push_back(static_cast<int>(std::lround(weights[i] * 10000.0)));
}
wxColour blended(Slic3r::blend_color_multi(hex_colors, int_weights));
return blended.IsOk() ? blended : wxColour(128, 128, 128);
}
std::vector<wxColour> sample_gradient_ramp(const wxColour& first,
const wxColour& second,
const Slic3r::GradientCurve& curve,
int steps)
{
std::vector<wxColour> ramp;
if (steps <= 0 || curve.points.size() < 2) return ramp;
ramp.reserve(steps);
for (int i = 0; i < steps; ++i) {
const double t = (steps > 1) ? (i + 0.5) / steps : 0.5;
const double r1 = Slic3r::sample_gradient_curve(curve, t);
ramp.push_back(blend_n_colors({first, second}, {r1, 1.0 - r1}));
}
return ramp;
}
// Resolve the curve a gradient slot is sampled with, mirroring the slicer's fallback in
// ToolOrdering: a custom curve wins, otherwise a straight line between gradient_range's
// endpoints, otherwise the 0.10 -> 0.90 default.
static Slic3r::GradientCurve mixed_gradient_curve(const Slic3r::DynamicPrintConfig& cfg, size_t slot)
{
const auto* curve_opt = cfg.option<ConfigOptionStrings>("filament_mixed_gradient_curve");
if (curve_opt && slot < curve_opt->values.size() && !curve_opt->values[slot].empty()) {
Slic3r::GradientCurve custom = Slic3r::parse_gradient_curve(curve_opt->values[slot]);
if (custom.points.size() >= 2) return custom;
}
double start = kGradientMinRatio, end = kGradientMaxRatio;
const auto* range_opt = cfg.option<ConfigOptionStrings>("filament_mixed_gradient_range");
if (range_opt && slot < range_opt->values.size() && !range_opt->values[slot].empty()) {
CNumericLocalesSetter c_locale_setter;
float v0 = 0, v1 = 0;
if (std::sscanf(range_opt->values[slot].c_str(), "%f,%f", &v0, &v1) == 2 &&
v0 > 0 && v0 < 1.0 && v1 > 0 && v1 < 1.0) {
start = v0;
end = v1;
}
}
Slic3r::GradientCurve curve;
curve.points = {{0.0, start, NAN, NAN}, {1.0, end, NAN, NAN}};
return curve;
}
std::vector<wxColour> mixed_gradient_ramp(const Slic3r::DynamicPrintConfig& cfg, size_t slot, int steps)
{
const auto* is_mixed_opt = cfg.option<ConfigOptionBools>("filament_is_mixed");
const auto* grad_opt = cfg.option<ConfigOptionBools>("filament_mixed_gradient");
const auto* comp_opt = cfg.option<ConfigOptionStrings>("filament_mixed_components");
const auto* colour_opt = cfg.option<ConfigOptionStrings>("filament_colour");
if (!is_mixed_opt || !grad_opt || !comp_opt || !colour_opt) return {};
if (slot >= is_mixed_opt->values.size() || !is_mixed_opt->values[slot]) return {};
if (slot >= grad_opt->values.size() || !grad_opt->values[slot]) return {};
if (slot >= comp_opt->values.size()) return {};
// Only two-component slots fade; anything else stays on the plain blended swatch.
const auto comp_ids = Slic3r::parse_mixed_components(comp_opt->values[slot]);
if (comp_ids.size() != 2) return {};
auto component_colour = [&](unsigned int id) {
wxColour c = (id >= 1 && id <= colour_opt->values.size()) ? wxColour(colour_opt->values[id - 1]) : wxColour();
return c.IsOk() ? c : wxColour("#D9D9D9");
};
// Both gradient_range and the curve express the *first* component's ratio over Z, so
// the components stay in config order and the curve alone decides which end is which.
return sample_gradient_ramp(component_colour(comp_ids[0]), component_colour(comp_ids[1]),
mixed_gradient_curve(cfg, slot), steps);
}
void fill_gradient_ramp_rect(wxDC& dc, const wxRect& rect, const std::vector<wxColour>& ramp)
{
if (rect.width <= 0 || rect.height <= 0 || ramp.empty()) return;
dc.SetPen(*wxTRANSPARENT_PEN);
for (int y = 0; y < rect.height; ++y) {
// Row 0 is the top of the rect and so takes the ramp's last entry, the model's top.
// Mapping over height - 1 puts both ends of the ramp on screen even in a short swatch.
const double t = (rect.height > 1) ? (double) (rect.height - 1 - y) / (rect.height - 1) : 0.5;
dc.SetBrush(wxBrush(ramp[static_cast<size_t>(t * (ramp.size() - 1) + 0.5)]));
dc.DrawRectangle(rect.x, rect.y + y, rect.width, 1);
}
}
// Helper struct to hold bitmap and DC
struct BitmapDC {
wxBitmap bitmap;
wxMemoryDC dc;
BitmapDC(const wxSize& size) : bitmap(size){
#ifdef __WXOSX__
bitmap.UseAlpha();
#endif
dc.SelectObject(bitmap);
// Don't set white background - let the color patterns fill the entire area
dc.SetPen(*wxTRANSPARENT_PEN);
}
};
static BitmapDC init_bitmap_dc(const wxSize& size) {
return BitmapDC(size);
}
wxBitmap create_gradient_ramp_bitmap(const std::vector<wxColour>& ramp, const wxSize& size)
{
if (ramp.empty()) return wxNullBitmap;
BitmapDC bdc = init_bitmap_dc(size);
if (!bdc.dc.IsOk()) return wxNullBitmap;
fill_gradient_ramp_rect(bdc.dc, wxRect(0, 0, size.GetWidth(), size.GetHeight()), ramp);
bdc.dc.SelectObject(wxNullBitmap);
return bdc.bitmap;
}
// Check if a color is transparent (alpha == 0)
static bool is_transparent_color(const wxColour& color) {
return color.Alpha() == 0;
}
// Create transparent bitmap
static wxBitmap create_transparent_bitmap(const wxSize& size) {
BitmapDC bdc = init_bitmap_dc(size);
if (!bdc.dc.IsOk()) return wxNullBitmap;
// Create checkerboard pattern
wxColour light_gray(217, 217, 217); // #D9D9D9
wxColour white(255, 255, 255);
bool is_dark_mode = wxGetApp().dark_mode();
// Calculate parameters based on mode
int start_pos = is_dark_mode ? 0 : 1;
int end_width = is_dark_mode ? size.GetWidth() : size.GetWidth() - 1;
int end_height = is_dark_mode ? size.GetHeight() : size.GetHeight() - 1;
int square_size = std::max(6, std::min(end_width - start_pos, end_height - start_pos) / 8);
// Draw checkerboard
for (int x = start_pos; x < end_width; x += square_size) {
for (int y = start_pos; y < end_height; y += square_size) {
bool is_light = ((x / square_size) + (y / square_size)) % 2 == 0;
bdc.dc.SetBrush(wxBrush(is_light ? white : light_gray));
int width = std::min(square_size, size.GetWidth() - x);
int height = std::min(square_size, size.GetHeight() - y);
bdc.dc.DrawRectangle(x, y, width, height);
}
}
// Add border only in light mode
if (!is_dark_mode) {
bdc.dc.SetPen(wxPen(wxColour(130, 130, 128), 1, wxPENSTYLE_SOLID));
bdc.dc.SetBrush(*wxTRANSPARENT_BRUSH);
bdc.dc.DrawRectangle(0, 0, size.GetWidth(), size.GetHeight());
}
bdc.dc.SelectObject(wxNullBitmap);
return bdc.bitmap;
}
// Sort colors by HSV values (primarily by hue, then saturation, then value)
static void sort_colors_by_hsv(std::vector<wxColour>& colors) {
if (colors.size() < 2) return;
std::sort(colors.begin(), colors.end(),
[](const wxColour& a, const wxColour& b) {
ColourHSV ha = wxColourToHSV(a);
ColourHSV hb = wxColourToHSV(b);
if (ha.h != hb.h) return ha.h < hb.h;
if (ha.s != hb.s) return ha.s < hb.s;
return ha.v < hb.v;
});
}
static wxBitmap create_single_filament_bitmap(const wxColour& color, const wxSize& size)
{
// Check if color is transparent
if (is_transparent_color(color)) {
return create_transparent_bitmap(size);
}
BitmapDC bdc = init_bitmap_dc(size);
if (!bdc.dc.IsOk()) return wxNullBitmap;
bdc.dc.SetBackground(wxBrush(color));
bdc.dc.Clear();
bdc.dc.SetBrush(wxBrush(color));
bdc.dc.DrawRectangle(0, 0, size.GetWidth(), size.GetHeight());
// Add gray border for light colors (similar to wxExtensions.cpp logic) - only in light mode
if (!wxGetApp().dark_mode() && color.Red() > 224 && color.Blue() > 224 && color.Green() > 224) {
bdc.dc.SetPen(wxPen(wxColour(130, 130, 128), 1, wxPENSTYLE_SOLID));
bdc.dc.SetBrush(*wxTRANSPARENT_BRUSH);
bdc.dc.DrawRectangle(0, 0, size.GetWidth(), size.GetHeight());
}
// Add white border for dark colors - only in dark mode
if(wxGetApp().dark_mode() && color.Red() < 45 && color.Blue() < 45 && color.Green() < 45) {
bdc.dc.SetPen(wxPen(wxColour(207, 207, 207), 1, wxPENSTYLE_SOLID));
bdc.dc.SetBrush(*wxTRANSPARENT_BRUSH);
bdc.dc.DrawRectangle(0, 0, size.GetWidth(), size.GetHeight());
}
bdc.dc.SelectObject(wxNullBitmap);
return bdc.bitmap;
}
static wxBitmap create_dual_filament_bitmap(const wxColour& color1, const wxColour& color2, const wxSize& size)
{
BitmapDC bdc = init_bitmap_dc(size);
int half_width = size.GetWidth() / 2;
bdc.dc.SetBrush(wxBrush(color1));
bdc.dc.DrawRectangle(0, 0, half_width, size.GetHeight());
bdc.dc.SetBrush(wxBrush(color2));
bdc.dc.DrawRectangle(half_width, 0, size.GetWidth() - half_width, size.GetHeight());
bdc.dc.SelectObject(wxNullBitmap);
return bdc.bitmap;
}
static wxBitmap create_triple_filament_bitmap(const std::vector<wxColour>& colors, const wxSize& size)
{
BitmapDC bdc = init_bitmap_dc(size);
int third_width = size.GetWidth() / 3;
int remaining_width = size.GetWidth() - (third_width * 2);
// Draw three vertical sections
bdc.dc.SetBrush(wxBrush(colors[0]));
bdc.dc.DrawRectangle(0, 0, third_width, size.GetHeight());
bdc.dc.SetBrush(wxBrush(colors[1]));
bdc.dc.DrawRectangle(third_width, 0, third_width, size.GetHeight());
bdc.dc.SetBrush(wxBrush(colors[2]));
bdc.dc.DrawRectangle(third_width * 2, 0, remaining_width, size.GetHeight());
bdc.dc.SelectObject(wxNullBitmap);
return bdc.bitmap;
}
static wxBitmap create_quadruple_filament_bitmap(const std::vector<wxColour>& colors, const wxSize& size)
{
BitmapDC bdc = init_bitmap_dc(size);
int half_width = (size.GetWidth() + 1) / 2;
int half_height = (size.GetHeight() + 1) / 2;
const int rects[4][4] = {
{0, 0, half_width, half_height}, // Top left
{half_width, 0, size.GetWidth() - half_width, half_height}, // Top right
{0, half_height, half_width, size.GetHeight() - half_height}, // Bottom left
{half_width, half_height, size.GetWidth() - half_width, size.GetHeight() - half_height} // Bottom right
};
for (int i = 0; i < 4; i++) {
bdc.dc.SetBrush(wxBrush(colors[i]));
bdc.dc.DrawRectangle(rects[i][0], rects[i][1], rects[i][2], rects[i][3]);
}
bdc.dc.SelectObject(wxNullBitmap);
return bdc.bitmap;
}
static wxBitmap create_gradient_filament_bitmap(const std::vector<wxColour>& colors, const wxSize& size)
{
BitmapDC bdc = init_bitmap_dc(size);
if (colors.size() == 1) {
return create_single_filament_bitmap(colors[0], size);
}
// use segment gradient, make transition more natural
wxDC& dc = bdc.dc;
int total_width = size.GetWidth();
int height = size.GetHeight();
// calculate segment count
int segment_count = colors.size() - 1;
double segment_width = (double)total_width / segment_count;
int left = 0;
for (int i = 0; i < segment_count; i++) {
int current_width = (int)segment_width;
// handle last segment, ensure fully filled
if (i == segment_count - 1) {
current_width = total_width - left;
}
// avoid width exceed boundary
if (left + current_width > total_width) {
current_width = total_width - left;
}
if (current_width > 0) {
auto rect = wxRect(left, 0, current_width, height);
dc.GradientFillLinear(rect, colors[i], colors[i + 1], wxEAST);
left += current_width;
}
}
bdc.dc.SelectObject(wxNullBitmap);
return bdc.bitmap;
}
wxBitmap create_filament_bitmap(const std::vector<wxColour>& colors, const wxSize& size, bool force_gradient)
{
if (colors.empty()) return wxNullBitmap;
// Make a copy to sort without modifying original
std::vector<wxColour> sorted_colors = colors;
// Sort colors by HSV when there are 2 or more colors
if (sorted_colors.size() >= 2) {
sort_colors_by_hsv(sorted_colors);
}
if (force_gradient && sorted_colors.size() >= 2) {
return create_gradient_filament_bitmap(sorted_colors, size);
}
switch (sorted_colors.size()) {
case 1: return create_single_filament_bitmap(sorted_colors[0], size);
case 2: return create_dual_filament_bitmap(sorted_colors[0], sorted_colors[1], size);
case 3: return create_triple_filament_bitmap(sorted_colors, size);
case 4: return create_quadruple_filament_bitmap(sorted_colors, size);
default: return create_gradient_filament_bitmap(sorted_colors, size);
}
}
void recompute_mixed_slot_colors(std::vector<wxColour>& colors,
const Slic3r::DynamicPrintConfig& cfg)
{
const auto* is_mixed_opt = cfg.option<ConfigOptionBools>("filament_is_mixed");
const auto* comp_opt = cfg.option<ConfigOptionStrings>("filament_mixed_components");
const auto* ratio_opt = cfg.option<ConfigOptionStrings>("filament_mixed_sublayer_ratios");
const auto* grad_opt = cfg.option<ConfigOptionBools>("filament_mixed_gradient");
if (!is_mixed_opt || !comp_opt) return;
const size_t n = is_mixed_opt->values.size();
if (colors.size() < n) colors.resize(n);
const auto* colour_opt = cfg.option<ConfigOptionStrings>("filament_colour");
const auto kFallback = wxColour(128, 128, 128, 255);
for (size_t i = 0; i < n; ++i) {
if (!is_mixed_opt->values[i]) continue;
if (i >= comp_opt->values.size()) { colors[i] = kFallback; continue; }
auto comp_ids = Slic3r::parse_mixed_components(comp_opt->values[i]);
if (comp_ids.empty()) { colors[i] = kFallback; continue; }
bool is_gradient = grad_opt && i < grad_opt->values.size() && grad_opt->values[i];
std::vector<unsigned int> use_ids = comp_ids;
std::vector<int> weights;
if (is_gradient && comp_ids.size() >= 2) {
use_ids = { comp_ids.front(), comp_ids.back() };
weights = { 5000, 5000 };
} else {
auto ratios_d = Slic3r::parse_mixed_ratios(
(ratio_opt && i < ratio_opt->values.size()) ? ratio_opt->values[i] : std::string{},
comp_ids.size());
weights.reserve(comp_ids.size());
for (double r : ratios_d)
weights.push_back(static_cast<int>(std::lround(r * 10000.0)));
}
std::vector<std::string> hex_colors;
hex_colors.reserve(use_ids.size());
bool any_invalid = false;
for (unsigned int id : use_ids) {
if (id == 0 || id > colors.size()) { any_invalid = true; break; }
wxColour c = colors[id - 1];
if (c.IsOk() && (c.Red() > 0 || c.Green() > 0 || c.Blue() > 0)) {
hex_colors.push_back(to_hex(c));
} else if (colour_opt && (id - 1) < colour_opt->values.size()) {
hex_colors.push_back(colour_opt->values[id - 1]);
} else {
any_invalid = true; break;
}
}
if (any_invalid) { colors[i] = kFallback; continue; }
std::string hex = Slic3r::blend_color_multi(hex_colors, weights);
wxColour blended(hex);
if (!blended.IsOk()) blended = kFallback;
colors[i] = wxColour(blended.Red(), blended.Green(), blended.Blue(), 255);
}
}
}} // namespace Slic3r::GUI