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Original implementation of Alpha Image filters

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Chromakey (to finish), lumakey and alpha fill.
This commit is contained in:
Bruno Herbelin
2022-06-06 23:33:36 +02:00
parent fec2fb7ce6
commit 1604eaa239
16 changed files with 246 additions and 8 deletions
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69
ImGuiVisitor.cpp
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@@ -928,6 +928,75 @@ void ImGuiVisitor::visit (EdgeFilter& f)
}
}
void ImGuiVisitor::visit (AlphaFilter& f)
{
std::ostringstream oss;
oss << "Alpha ";
// Method selection
if (ImGuiToolkit::IconButton(13, 4)) {
f.setOperation( 0 );
oss << AlphaFilter::operation_label[0];
Action::manager().store(oss.str());
}
ImGui::SameLine(0, IMGUI_SAME_LINE);
ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
int m = (int) f.operation();
if (ImGui::Combo("Operation", &m, AlphaFilter::operation_label, IM_ARRAYSIZE(AlphaFilter::operation_label) )) {
f.setOperation( m );
oss << AlphaFilter::operation_label[m];
Action::manager().store(oss.str());
}
// List of parameters
std::map<std::string, float> filter_parameters = f.program().parameters();
if ( m == AlphaFilter::ALPHA_CHROMAKEY || m == AlphaFilter::ALPHA_LUMAKEY)
{
float v = filter_parameters["Tolerance"];
if (ImGuiToolkit::IconButton(13, 14)) {
v = 0.f;
f.setProgramParameter("Tolerance", v);
}
ImGui::SameLine(0, IMGUI_SAME_LINE);
ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
if (ImGui::SliderFloat( "Tolerance", &v, 0.f, 1.f, "%.2f")) {
f.setProgramParameter("Tolerance", v);
}
if (ImGui::IsItemDeactivatedAfterEdit()) {
oss << AlphaFilter::operation_label[ f.operation() ];
oss << " : " << "Tolerance" << " " << std::setprecision(3) << v;
Action::manager().store(oss.str());
}
}
if ( m == AlphaFilter::ALPHA_CHROMAKEY || m == AlphaFilter::ALPHA_FILL)
{
glm::vec4 color = glm::vec4(filter_parameters["Red"], filter_parameters["Green"], filter_parameters["Blue"], 1.f);
if (ImGuiToolkit::IconButton(13, 14)) {
color = glm::vec4(0.f, 0.8f, 0.f, 1.f);
f.setProgramParameter("Red", color.r);
f.setProgramParameter("Green", color.g);
f.setProgramParameter("Blue", color.b);
}
ImGui::SameLine(0, IMGUI_SAME_LINE);
ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
if ( ImGui::ColorEdit3("Color", glm::value_ptr(color), ImGuiColorEditFlags_Float | ImGuiColorEditFlags_NoOptions) )
{
f.setProgramParameter("Red", color.r);
f.setProgramParameter("Green", color.g);
f.setProgramParameter("Blue", color.b);
}
if (ImGui::IsItemDeactivatedAfterEdit()) {
oss << AlphaFilter::operation_label[ f.operation() ];
oss << " : " << "Color" << " " << color.r << " " << color.g << " " << color.b;
Action::manager().store(oss.str());
}
}
}
void ImGuiVisitor::visit (ImageFilter& f)
{
// Selection of Algorithm