Пример #1
0
    ExampleApplication() : nanogui::Screen(Eigen::Vector2i(1024, 768), "NanoGUI Test") {
        using namespace nanogui;

        Window *window = new Window(this, "Button demo");
        window->setPosition(Vector2i(15, 15));
        window->setLayout(new GroupLayout());

        /* No need to store a pointer, the data structure will be automatically
           freed when the parent window is deleted */
        new Label(window, "Push buttons", "sans-bold");

        Button *b = new Button(window, "Plain button");
        b->setCallback([] { cout << "pushed!" << endl; });

        /* Alternative construction notation using variadic template */
        b = window->add<Button>("Styled", ENTYPO_ICON_ROCKET);
        b->setBackgroundColor(Color(0, 0, 255, 25));
        b->setCallback([] { cout << "pushed!" << endl; });

        new Label(window, "Toggle buttons", "sans-bold");
        b = new Button(window, "Toggle me");
        b->setFlags(Button::ToggleButton);
        b->setChangeCallback([](bool state) { cout << "Toggle button state: " << state << endl; });

        new Label(window, "Radio buttons", "sans-bold");
        b = new Button(window, "Radio button 1");
        b->setFlags(Button::RadioButton);
        b = new Button(window, "Radio button 2");
        b->setFlags(Button::RadioButton);

        new Label(window, "A tool palette", "sans-bold");
        Widget *tools = new Widget(window);
        tools->setLayout(new BoxLayout(Orientation::Horizontal,
                                       Alignment::Middle, 0, 6));

        b = new ToolButton(tools, ENTYPO_ICON_CLOUD);
        b = new ToolButton(tools, ENTYPO_ICON_FF);
        b = new ToolButton(tools, ENTYPO_ICON_COMPASS);
        b = new ToolButton(tools, ENTYPO_ICON_INSTALL);

        new Label(window, "Popup buttons", "sans-bold");
        PopupButton *popupBtn = new PopupButton(window, "Popup", ENTYPO_ICON_EXPORT);
        Popup *popup = popupBtn->popup();
        popup->setLayout(new GroupLayout());
        new Label(popup, "Arbitrary widgets can be placed here");
        new CheckBox(popup, "A check box");
        popupBtn = new PopupButton(popup, "Recursive popup", ENTYPO_ICON_FLASH);
        popup = popupBtn->popup();
        popup->setLayout(new GroupLayout());
        new CheckBox(popup, "Another check box");

        window = new Window(this, "Basic widgets");
        window->setPosition(Vector2i(200, 15));
        window->setLayout(new GroupLayout());

        new Label(window, "Message dialog", "sans-bold");
        tools = new Widget(window);
        tools->setLayout(new BoxLayout(Orientation::Horizontal,
                                       Alignment::Middle, 0, 6));
        b = new Button(tools, "Info");
        b->setCallback([&] {
            auto dlg = new MessageDialog(this, MessageDialog::Type::Information, "Title", "This is an information message");
            dlg->setCallback([](int result) { cout << "Dialog result: " << result << endl; });
        });
        b = new Button(tools, "Warn");
        b->setCallback([&] {
            auto dlg = new MessageDialog(this, MessageDialog::Type::Warning, "Title", "This is a warning message");
            dlg->setCallback([](int result) { cout << "Dialog result: " << result << endl; });
        });
        b = new Button(tools, "Ask");
        b->setCallback([&] {
            auto dlg = new MessageDialog(this, MessageDialog::Type::Warning, "Title", "This is a question message", "Yes", "No", true);
            dlg->setCallback([](int result) { cout << "Dialog result: " << result << endl; });
        });

        std::vector<std::pair<int, std::string>>
            icons = loadImageDirectory(mNVGContext, "icons");

        new Label(window, "Image panel & scroll panel", "sans-bold");
        PopupButton *imagePanelBtn = new PopupButton(window, "Image Panel");
        imagePanelBtn->setIcon(ENTYPO_ICON_FOLDER);
        popup = imagePanelBtn->popup();
        VScrollPanel *vscroll = new VScrollPanel(popup);
        ImagePanel *imgPanel = new ImagePanel(vscroll);
        imgPanel->setImages(icons);
        popup->setFixedSize(Vector2i(245, 150));

        auto img_window = new Window(this, "Selected image");
        img_window->setPosition(Vector2i(710, 15));
        img_window->setLayout(new GroupLayout());

        auto img = new ImageView(img_window);
        img->setPolicy(ImageView::SizePolicy::Expand);
        img->setFixedSize(Vector2i(275, 275));
        img->setImage(icons[0].first);
        imgPanel->setCallback([&, img, imgPanel, imagePanelBtn](int i) {
            img->setImage(imgPanel->images()[i].first); cout << "Selected item " << i << endl;
        });
        auto img_cb = new CheckBox(img_window, "Expand",
            [img](bool state) { if (state) img->setPolicy(ImageView::SizePolicy::Expand);
                                else       img->setPolicy(ImageView::SizePolicy::Fixed); });
        img_cb->setChecked(true);

        new Label(window, "File dialog", "sans-bold");
        tools = new Widget(window);
        tools->setLayout(new BoxLayout(Orientation::Horizontal,
                                       Alignment::Middle, 0, 6));
        b = new Button(tools, "Open");
        b->setCallback([&] {
            cout << "File dialog result: " << file_dialog(
                    { {"png", "Portable Network Graphics"}, {"txt", "Text file"} }, false) << endl;
        });
        b = new Button(tools, "Save");
        b->setCallback([&] {
            cout << "File dialog result: " << file_dialog(
                    { {"png", "Portable Network Graphics"}, {"txt", "Text file"} }, true) << endl;
        });

        new Label(window, "Combo box", "sans-bold");
        new ComboBox(window, { "Combo box item 1", "Combo box item 2", "Combo box item 3"});
        new Label(window, "Check box", "sans-bold");
        CheckBox *cb = new CheckBox(window, "Flag 1",
            [](bool state) { cout << "Check box 1 state: " << state << endl; }
        );
        cb->setChecked(true);
        cb = new CheckBox(window, "Flag 2",
            [](bool state) { cout << "Check box 2 state: " << state << endl; }
        );
        new Label(window, "Progress bar", "sans-bold");
        mProgress = new ProgressBar(window);

        new Label(window, "Slider and text box", "sans-bold");

        Widget *panel = new Widget(window);
        panel->setLayout(new BoxLayout(Orientation::Horizontal,
                                       Alignment::Middle, 0, 20));

        Slider *slider = new Slider(panel);
        slider->setValue(0.5f);
        slider->setFixedWidth(80);

        TextBox *textBox = new TextBox(panel);
        textBox->setFixedSize(Vector2i(60, 25));
        textBox->setValue("50");
        textBox->setUnits("%");
        slider->setCallback([textBox](float value) {
            textBox->setValue(std::to_string((int) (value * 100)));
        });
        slider->setFinalCallback([&](float value) {
            cout << "Final slider value: " << (int) (value * 100) << endl;
        });
        textBox->setFixedSize(Vector2i(60,25));
        textBox->setFontSize(20);
        textBox->setAlignment(TextBox::Alignment::Right);

        window = new Window(this, "Misc. widgets");
        window->setPosition(Vector2i(425,15));
        window->setLayout(new GroupLayout());

        TabWidget* tabWidget = window->add<TabWidget>();

        Widget* layer = tabWidget->createTab("Color Wheel");
        layer->setLayout(new GroupLayout());

        // Use overloaded variadic add to fill the tab widget with Different tabs.
        layer->add<Label>("Color wheel widget", "sans-bold");
        layer->add<ColorWheel>();

        layer = tabWidget->createTab("Function Graph");
        layer->setLayout(new GroupLayout());

        layer->add<Label>("Function graph widget", "sans-bold");

        Graph *graph = layer->add<Graph>("Some Function");

        graph->setHeader("E = 2.35e-3");
        graph->setFooter("Iteration 89");
        VectorXf &func = graph->values();
        func.resize(100);
        for (int i = 0; i < 100; ++i)
            func[i] = 0.5f * (0.5f * std::sin(i / 10.f) +
                              0.5f * std::cos(i / 23.f) + 1);

        // Dummy tab used to represent the last tab button.
        tabWidget->createTab("+");

        // A simple counter.
        int counter = 1;
        tabWidget->setCallback([tabWidget, this, counter] (int index) mutable {
            if (index == (tabWidget->tabCount()-1)) {
                // When the "+" tab has been clicked, simply add a new tab.
                string tabName = "Dynamic " + to_string(counter);
                Widget* layerDyn = tabWidget->createTab(index, tabName);
                layerDyn->setLayout(new GroupLayout());
                layerDyn->add<Label>("Function graph widget", "sans-bold");
                Graph *graphDyn = layerDyn->add<Graph>("Dynamic function");

                graphDyn->setHeader("E = 2.35e-3");
                graphDyn->setFooter("Iteration " + to_string(index*counter));
                VectorXf &funcDyn = graphDyn->values();
                funcDyn.resize(100);
                for (int i = 0; i < 100; ++i)
                    funcDyn[i] = 0.5f *
                        std::abs((0.5f * std::sin(i / 10.f + counter) +
                                  0.5f * std::cos(i / 23.f + 1 + counter)));
                ++counter;
                // We must invoke perform layout from the screen instance to keep everything in order.
                // This is essential when creating tabs dynamically.
                performLayout();
                // Ensure that the newly added header is visible on screen
                tabWidget->ensureTabVisible(index);

            }
        });
        tabWidget->setActiveTab(0);

        // A button to go back to the first tab and scroll the window.
        panel = window->add<Widget>();
        panel->add<Label>("Jump to tab: ");
        panel->setLayout(new BoxLayout(Orientation::Horizontal,
                                       Alignment::Middle, 0, 6));

        auto ib = panel->add<IntBox<int>>();
        ib->setEditable(true);

        b = panel->add<Button>("", ENTYPO_ICON_FORWARD);
        b->setFixedSize(Vector2i(22, 22));
        ib->setFixedHeight(22);
        b->setCallback([tabWidget, ib] {
            int value = ib->value();
            if (value >= 0 && value < tabWidget->tabCount()) {
                tabWidget->setActiveTab(value);
                tabWidget->ensureTabVisible(value);
            }
        });

        window = new Window(this, "Grid of small widgets");
        window->setPosition(Vector2i(425, 300));
        GridLayout *layout =
            new GridLayout(Orientation::Horizontal, 2,
                           Alignment::Middle, 15, 5);
        layout->setColAlignment(
            { Alignment::Maximum, Alignment::Fill });
        layout->setSpacing(0, 10);
        window->setLayout(layout);

        {
            new Label(window, "Floating point :", "sans-bold");
            textBox = new TextBox(window);
            textBox->setEditable(true);
            textBox->setFixedSize(Vector2i(100, 20));
            textBox->setValue("50");
            textBox->setUnits("GiB");
            textBox->setDefaultValue("0.0");
            textBox->setFontSize(16);
            textBox->setFormat("[-]?[0-9]*\\.?[0-9]+");
        }

        {
            new Label(window, "Positive integer :", "sans-bold");
            auto intBox = new IntBox<int>(window);
            intBox->setEditable(true);
            intBox->setFixedSize(Vector2i(100, 20));
            intBox->setValue(50);
            intBox->setUnits("Mhz");
            intBox->setDefaultValue("0");
            intBox->setFontSize(16);
            intBox->setFormat("[1-9][0-9]*");
            intBox->setSpinnable(true);
            intBox->setMinValue(1);
            intBox->setValueIncrement(2);
        }

        {
            new Label(window, "Checkbox :", "sans-bold");

            cb = new CheckBox(window, "Check me");
            cb->setFontSize(16);
            cb->setChecked(true);
        }

        new Label(window, "Combo box :", "sans-bold");
        ComboBox *cobo =
            new ComboBox(window, { "Item 1", "Item 2", "Item 3" });
        cobo->setFontSize(16);
        cobo->setFixedSize(Vector2i(100,20));

        new Label(window, "Color button :", "sans-bold");
        popupBtn = new PopupButton(window, "", 0);
        popupBtn->setBackgroundColor(Color(255, 120, 0, 255));
        popupBtn->setFontSize(16);
        popupBtn->setFixedSize(Vector2i(100, 20));
        popup = popupBtn->popup();
        popup->setLayout(new GroupLayout());

        ColorWheel *colorwheel = new ColorWheel(popup);
        colorwheel->setColor(popupBtn->backgroundColor());

        Button *colorBtn = new Button(popup, "Pick");
        colorBtn->setFixedSize(Vector2i(100, 25));
        Color c = colorwheel->color();
        colorBtn->setBackgroundColor(c);

        colorwheel->setCallback([colorBtn](const Color &value) {
            colorBtn->setBackgroundColor(value);
        });

        colorBtn->setChangeCallback([colorBtn, popupBtn](bool pushed) {
            if (pushed) {
                popupBtn->setBackgroundColor(colorBtn->backgroundColor());
                popupBtn->setPushed(false);
            }
        });

        performLayout();

        /* All NanoGUI widgets are initialized at this point. Now
           create an OpenGL shader to draw the main window contents.

           NanoGUI comes with a simple Eigen-based wrapper around OpenGL 3,
           which eliminates most of the tedious and error-prone shader and
           buffer object management.
        */

        mShader.init(
            /* An identifying name */
            "a_simple_shader",

            /* Vertex shader */
            "#version 330\n"
            "uniform mat4 modelViewProj;\n"
            "in vec3 position;\n"
            "void main() {\n"
            "    gl_Position = modelViewProj * vec4(position, 1.0);\n"
            "}",

            /* Fragment shader */
            "#version 330\n"
            "out vec4 color;\n"
            "uniform float intensity;\n"
            "void main() {\n"
            "    color = vec4(vec3(intensity), 1.0);\n"
            "}"
        );

        MatrixXu indices(3, 2); /* Draw 2 triangles */
        indices.col(0) << 0, 1, 2;
        indices.col(1) << 2, 3, 0;

        MatrixXf positions(3, 4);
        positions.col(0) << -1, -1, 0;
        positions.col(1) <<  1, -1, 0;
        positions.col(2) <<  1,  1, 0;
        positions.col(3) << -1,  1, 0;

        mShader.bind();
        mShader.uploadIndices(indices);
        mShader.uploadAttrib("position", positions);
        mShader.setUniform("intensity", 0.5f);
    }
Пример #2
0
    ExampleApplication() : nanogui::Screen(Eigen::Vector2i(1024, 768), "NanoGUI Test") {
        using namespace nanogui;

        Window *window = new Window(this, "Button demo");
        window->setPosition(Vector2i(15, 15));
        window->setLayout(new GroupLayout());

        /* No need to store a pointer, the data structure will be automatically
           freed when the parent window is deleted */
        new Label(window, "Push buttons", "sans-bold");

        Button *b = new Button(window, "Plain button");
        b->setCallback([] { cout << "pushed!" << endl; });
        b = new Button(window, "Styled", ENTYPO_ICON_ROCKET);
        b->setBackgroundColor(Color(0, 0, 255, 25));
        b->setCallback([] { cout << "pushed!" << endl; });

        new Label(window, "Toggle buttons", "sans-bold");
        b = new Button(window, "Toggle me");
        b->setFlags(Button::ToggleButton);
        b->setChangeCallback([](bool state) { cout << "Toggle button state: " << state << endl; });

        new Label(window, "Radio buttons", "sans-bold");
        b = new Button(window, "Radio button 1");
        b->setFlags(Button::RadioButton);
        b = new Button(window, "Radio button 2");
        b->setFlags(Button::RadioButton);

        new Label(window, "A tool palette", "sans-bold");
        Widget *tools = new Widget(window);
        tools->setLayout(new BoxLayout(Orientation::Horizontal,
                                       Alignment::Middle, 0, 6));

        b = new ToolButton(tools, ENTYPO_ICON_CLOUD);
        b = new ToolButton(tools, ENTYPO_ICON_FF);
        b = new ToolButton(tools, ENTYPO_ICON_COMPASS);
        b = new ToolButton(tools, ENTYPO_ICON_INSTALL);

        new Label(window, "Popup buttons", "sans-bold");
        PopupButton *popupBtn = new PopupButton(window, "Popup", ENTYPO_ICON_EXPORT);
        Popup *popup = popupBtn->popup();
        popup->setLayout(new GroupLayout());
        new Label(popup, "Arbitrary widgets can be placed here");
        new CheckBox(popup, "A check box");
        popupBtn = new PopupButton(popup, "Recursive popup", ENTYPO_ICON_FLASH);
        popup = popupBtn->popup();
        popup->setLayout(new GroupLayout());
        new CheckBox(popup, "Another check box");

        window = new Window(this, "Basic widgets");
        window->setPosition(Vector2i(200, 15));
        window->setLayout(new GroupLayout());

        new Label(window, "Message dialog", "sans-bold");
        tools = new Widget(window);
        tools->setLayout(new BoxLayout(Orientation::Horizontal,
                                       Alignment::Middle, 0, 6));
        b = new Button(tools, "Info");
        b->setCallback([&] {
            auto dlg = new MessageDialog(this, MessageDialog::Type::Information, "Title", "This is an information message");
            dlg->setCallback([](int result) { cout << "Dialog result: " << result << endl; });
        });
        b = new Button(tools, "Warn");
        b->setCallback([&] {
            auto dlg = new MessageDialog(this, MessageDialog::Type::Warning, "Title", "This is a warning message");
            dlg->setCallback([](int result) { cout << "Dialog result: " << result << endl; });
        });
        b = new Button(tools, "Ask");
        b->setCallback([&] {
            auto dlg = new MessageDialog(this, MessageDialog::Type::Warning, "Title", "This is a question message", "Yes", "No", true);
            dlg->setCallback([](int result) { cout << "Dialog result: " << result << endl; });
        });

        std::vector<std::pair<int, std::string>>
            icons = loadImageDirectory(mNVGContext, "icons");

        new Label(window, "Image panel & scroll panel", "sans-bold");
        PopupButton *imagePanelBtn = new PopupButton(window, "Image Panel");
        imagePanelBtn->setIcon(ENTYPO_ICON_FOLDER);
        popup = imagePanelBtn->popup();
        VScrollPanel *vscroll = new VScrollPanel(popup);
        ImagePanel *imgPanel = new ImagePanel(vscroll);
        imgPanel->setImages(icons);
        popup->setFixedSize(Vector2i(245, 150));

        auto img_window = new Window(this, "Selected image");
        img_window->setPosition(Vector2i(675, 15));
        img_window->setLayout(new GroupLayout());

        auto img = new ImageView(img_window);
        img->setPolicy(ImageView::SizePolicy::Expand);
        img->setFixedSize(Vector2i(300, 300));
        img->setImage(icons[0].first);
        imgPanel->setCallback([&, img, imgPanel, imagePanelBtn](int i) {
            img->setImage(imgPanel->images()[i].first); cout << "Selected item " << i << endl;
        });
        auto img_cb = new CheckBox(img_window, "Expand",
            [img](bool state) { if (state) img->setPolicy(ImageView::SizePolicy::Expand);
                                else       img->setPolicy(ImageView::SizePolicy::Fixed); });
        img_cb->setChecked(true);

        new Label(window, "File dialog", "sans-bold");
        tools = new Widget(window);
        tools->setLayout(new BoxLayout(Orientation::Horizontal,
                                       Alignment::Middle, 0, 6));
        b = new Button(tools, "Open");
        b->setCallback([&] {
            cout << "File dialog result: " << file_dialog(
                    { {"png", "Portable Network Graphics"}, {"txt", "Text file"} }, false) << endl;
        });
        b = new Button(tools, "Save");
        b->setCallback([&] {
            cout << "File dialog result: " << file_dialog(
                    { {"png", "Portable Network Graphics"}, {"txt", "Text file"} }, true) << endl;
        });

        new Label(window, "Combo box", "sans-bold");
        new ComboBox(window, { "Combo box item 1", "Combo box item 2", "Combo box item 3"});
        new Label(window, "Check box", "sans-bold");
        CheckBox *cb = new CheckBox(window, "Flag 1",
            [](bool state) { cout << "Check box 1 state: " << state << endl; }
        );
        cb->setChecked(true);
        cb = new CheckBox(window, "Flag 2",
            [](bool state) { cout << "Check box 2 state: " << state << endl; }
        );
        new Label(window, "Progress bar", "sans-bold");
        mProgress = new ProgressBar(window);

        new Label(window, "Slider and text box", "sans-bold");

        Widget *panel = new Widget(window);
        panel->setLayout(new BoxLayout(Orientation::Horizontal,
                                       Alignment::Middle, 0, 20));

        Slider *slider = new Slider(panel);
        slider->setValue(0.5f);
        slider->setFixedWidth(80);

        TextBox *textBox = new TextBox(panel);
        textBox->setFixedSize(Vector2i(60, 25));
        textBox->setValue("50");
        textBox->setUnits("%");
        slider->setCallback([textBox](float value) {
            textBox->setValue(std::to_string((int) (value * 100)));
        });
        slider->setFinalCallback([&](float value) {
            cout << "Final slider value: " << (int) (value * 100) << endl;
        });
        textBox->setFixedSize(Vector2i(60,25));
        textBox->setFontSize(20);
        textBox->setAlignment(TextBox::Alignment::Right);

        window = new Window(this,"Misc. widgets");
        window->setPosition(Vector2i(425,15));
        window->setLayout(new GroupLayout());
        new Label(window,"Color wheel","sans-bold");
        new ColorWheel(window);
        new Label(window, "Function graph", "sans-bold");
        Graph *graph = new Graph(window, "Some function");
        graph->setHeader("E = 2.35e-3");
        graph->setFooter("Iteration 89");
        VectorXf &func = graph->values();
        func.resize(100);
        for (int i = 0; i < 100; ++i)
            func[i] = 0.5f * (0.5f * std::sin(i / 10.f) +
                              0.5f * std::cos(i / 23.f) + 1);

        window = new Window(this, "Grid of small widgets");
        window->setPosition(Vector2i(425, 288));
        GridLayout *layout =
            new GridLayout(Orientation::Horizontal, 2,
                           Alignment::Middle, 15, 5);
        layout->setColAlignment(
            { Alignment::Maximum, Alignment::Fill });
        layout->setSpacing(0, 10);
        window->setLayout(layout);

        {
            new Label(window, "Floating point :", "sans-bold");
            textBox = new TextBox(window);
            textBox->setEditable(true);
            textBox->setFixedSize(Vector2i(100, 20));
            textBox->setValue("50");
            textBox->setUnits("GiB");
            textBox->setDefaultValue("0.0");
            textBox->setFontSize(16);
            textBox->setFormat("[-]?[0-9]*\\.?[0-9]+");
        }

        {
            new Label(window, "Positive integer :", "sans-bold");
            textBox = new TextBox(window);
            textBox->setEditable(true);
            textBox->setFixedSize(Vector2i(100, 20));
            textBox->setValue("50");
            textBox->setUnits("Mhz");
            textBox->setDefaultValue("0.0");
            textBox->setFontSize(16);
            textBox->setFormat("[1-9][0-9]*");
        }

        {
            new Label(window, "Checkbox :", "sans-bold");

            cb = new CheckBox(window, "Check me");
            cb->setFontSize(16);
            cb->setChecked(true);
        }

        new Label(window, "Combo box :", "sans-bold");
        ComboBox *cobo =
            new ComboBox(window, { "Item 1", "Item 2", "Item 3" });
        cobo->setFontSize(16);
        cobo->setFixedSize(Vector2i(100,20));

        new Label(window, "Color button :", "sans-bold");
        popupBtn = new PopupButton(window, "", 0);
        popupBtn->setBackgroundColor(Color(255, 120, 0, 255));
        popupBtn->setFontSize(16);
        popupBtn->setFixedSize(Vector2i(100, 20));
        popup = popupBtn->popup();
        popup->setLayout(new GroupLayout());

        ColorWheel *colorwheel = new ColorWheel(popup);
        colorwheel->setColor(popupBtn->backgroundColor());

        Button *colorBtn = new Button(popup, "Pick");
        colorBtn->setFixedSize(Vector2i(100, 25));
        Color c = colorwheel->color();
        colorBtn->setBackgroundColor(c);

        colorwheel->setCallback([colorBtn](const Color &value) {
            colorBtn->setBackgroundColor(value);
        });

        colorBtn->setChangeCallback([colorBtn, popupBtn](bool pushed) {
            if (pushed) {
                popupBtn->setBackgroundColor(colorBtn->backgroundColor());
                popupBtn->setPushed(false);
            }
        });

        performLayout(mNVGContext);

        /* All NanoGUI widgets are initialized at this point. Now
           create an OpenGL shader to draw the main window contents.

           NanoGUI comes with a simple Eigen-based wrapper around OpenGL 3,
           which eliminates most of the tedious and error-prone shader and
           buffer object management.
        */

        mShader.init(
            /* An identifying name */
            "a_simple_shader",

            /* Vertex shader */
            "#version 330\n"
            "uniform mat4 modelViewProj;\n"
            "in vec4 vertex;\n"
            "in vec3 color;\n"
            "out vec3 varying_color;\n"
            "void main() {\n"
            "    gl_Position = modelViewProj * vertex;\n"
            "    varying_color = color;\n"
            "}",

            /* Fragment shader */
            "#version 330\n"
            "in vec3 varying_color;\n"
            "out vec4 frag_color;\n"
            "uniform float intensity;\n"
            "void main() {\n"
            "    frag_color = vec4(intensity * varying_color, 1.0);\n"
            "}"
        );
        mShader.registerAttribs({
            {"color", "vec3"}
        });
        mShader.registerUniforms({
            {"modelViewProj", "mat4"},
            {"intensity", "float"}
        });
    }
Пример #3
0
void View::create (WindowRef & ciWindow, const fs::path & assetFolder)
{
   try
   {
      initGraph (&fps, GRAPH_RENDER_FPS, "Frame Time");
      initGraph (&cpuGraph, GRAPH_RENDER_MS, "CPU Time");

      setSize (ciWindow->getSize());

      nanogui::Window * window = new nanogui::Window (this, "Button demo");
      window->setPosition (ivec2 (15, 15));
      window->setLayout (new GroupLayout());
      /* No need to store a pointer, the data structure will be automatically
         freed when the parent window is deleted */
      new Label (window, "Push buttons", "sans-bold");
      Button * b = new Button (window, "Plain button");
      b->setCallback ([] { cout << "pushed!" << endl; });
      b = new Button (window, "Styled", ENTYPO_ICON_ROCKET);
      b->setBackgroundColor (Colour (0, 0, 255, 25));
      b->setCallback ([] { cout << "pushed!" << endl; });
      new Label (window, "Toggle buttons", "sans-bold");
      b = new Button (window, "Toggle me");
      b->setFlags (Button::ToggleButton);
      b->setChangeCallback ([] (bool state)
      {
         cout << "Toggle button state: " << state << endl;
      });
      new Label (window, "Radio buttons", "sans-bold");
      b = new Button (window, "Radio button 1");
      b->setFlags (Button::RadioButton);
      b = new Button (window, "Radio button 2");
      b->setFlags (Button::RadioButton);
      new Label (window, "A tool palette", "sans-bold");
      Widget * tools = new Widget (window);
      tools->setLayout (new BoxLayout (Orientation::Horizontal,
                                       Alignment::Middle, 0, 6));
      b = new ToolButton (tools, ENTYPO_ICON_CLOUD);
      b = new ToolButton (tools, ENTYPO_ICON_FF);
      b = new ToolButton (tools, ENTYPO_ICON_COMPASS);
      b = new ToolButton (tools, ENTYPO_ICON_INSTALL);
      new Label (window, "Popup buttons", "sans-bold");
      PopupButton * popupBtn = new PopupButton (window, "Popup", ENTYPO_ICON_EXPORT);
      Popup * popup = popupBtn->popup();
      popup->setLayout (new GroupLayout());
      new Label (popup, "Arbitrary widgets can be placed here");
      new CheckBox (popup, "A check box");
      popupBtn = new PopupButton (popup, "Recursive popup", ENTYPO_ICON_FLASH);
      popup = popupBtn->popup();
      popup->setLayout (new GroupLayout());
      new CheckBox (popup, "Another check box");
      window = new nanogui::Window (this, "Basic widgets");
      window->setPosition (ivec2 (200, 15));
      window->setLayout (new GroupLayout());
      new Label (window, "Message dialog", "sans-bold");
      tools = new Widget (window);
      tools->setLayout (new BoxLayout (Orientation::Horizontal,
                                       Alignment::Middle, 0, 6));
      b = new Button (tools, "Info");
      b->setCallback ([&]
      {
         auto dlg = new MessageDialog (this, MessageDialog::Type::Information, "Title", "This is an information message");
         dlg->setCallback ([] (int result)
         {
            cout << "Dialog result: " << result << endl;
         });
      });
      b = new Button (tools, "Warn");
      b->setCallback ([&]
      {
         auto dlg = new MessageDialog (this, MessageDialog::Type::Warning, "Title", "This is a warning message");
         dlg->setCallback ([] (int result)
         {
            cout << "Dialog result: " << result << endl;
         });
      });
      b = new Button (tools, "Ask");
      b->setCallback ([&]
      {
         auto dlg = new MessageDialog (this, MessageDialog::Type::Warning, "Title", "This is a question message", "Yes", "No", true);
         dlg->setCallback ([] (int result)
         {
            cout << "Dialog result: " << result << endl;
         });
      });

	  std::string iconPath = assetFolder.string();
	  iconPath += "/icons";
     
      std::vector<std::pair<int, std::string>> icons = NanoUtil::loadImageDirectory (getContext(), iconPath);
      new Label (window, "Image panel & scroll panel", "sans-bold");
      PopupButton * imagePanelBtn = new PopupButton (window, "Image Panel");
      imagePanelBtn->setIcon (ENTYPO_ICON_FOLDER);
      popup = imagePanelBtn->popup();
      VScrollPanel * vscroll = new VScrollPanel (popup);
      ImagePanel * imgPanel = new ImagePanel (vscroll);
      imgPanel->setImages (icons);
      popup->setFixedSize (ivec2 (245, 150));
      new Label (window, "Selected image", "sans-bold");
      auto img = new ImageView (window);
      img->setFixedSize (ivec2 (40, 40));
      img->setImage (icons[0].first);
      imgPanel->setCallback ([ &, img, imgPanel, imagePanelBtn] (int i)
      {
         img->setImage (imgPanel->images()[i].first);
         cout << "Selected item " << i << endl;
      });
      new Label (window, "Combo box", "sans-bold");
      new ComboBox (window, { "Combo box item 1", "Combo box item 2", "Combo box item 3" });
      new Label (window, "Check box", "sans-bold");
      CheckBox * cb = new CheckBox (window, "Flag 1",
                                    [] (bool state)
      {
         cout << "Check box 1 state: " << state << endl;
      }
                                   );
      cb->setChecked (true);
      cb = new CheckBox (window, "Flag 2",
                         [] (bool state)
      {
         cout << "Check box 2 state: " << state << endl;
      }
                        );
      new Label (window, "Progress bar", "sans-bold");
      mProgress = new ProgressBar (window);
      new Label (window, "Slider and text box", "sans-bold");
      Widget * panel = new Widget (window);
      panel->setLayout (new BoxLayout (Orientation::Horizontal,
                                       Alignment::Middle, 0, 20));
      Slider * slider = new Slider (panel);
      slider->setValue (0.5f);
      slider->setFixedWidth (80);
      TxtBox * textBox = new TxtBox (panel);
      textBox->setFixedSize (ivec2 (60, 25));
      textBox->setValue ("50");
      textBox->setUnits ("%");
      slider->setCallback ([textBox] (float value)
      {
         textBox->setValue (std::to_string ((int) (value * 100)));
      });
      slider->setFinalCallback ([&] (float value)
      {
         cout << "Final slider value: " << (int) (value * 100) << endl;
      });
      textBox->setFixedSize (ivec2 (60, 25));
      textBox->setFontSize (20);
      textBox->setAlignment (TxtBox::Alignment::Right);


	  window = new nanogui::Window(this, "Misc. widgets");
	  window->setPosition(ivec2(425, 15));
	  window->setLayout(new GroupLayout());
	  new Label(window, "Color wheel", "sans-bold");
	  new ColorWheel(window);
	  new Label(window, "Function graph", "sans-bold");
	  Graph *graph = new Graph(window, "Some function");
	  graph->setHeader("E = 2.35e-3");
	  graph->setFooter("Iteration 89");
	  std::vector<float> &func = graph->values();
	  func.resize(100);
	  for (int i = 0; i < 100; ++i)
		  func[i] = 0.5f * (0.5f * std::sin(i / 10.f) +
			  0.5f * std::cos(i / 23.f) + 1);

	  window = new nanogui::Window(this, "Grid of small widgets");
	  window->setPosition(ivec2(425, 288));
	  GridLayout *layout =
		  new GridLayout(Orientation::Horizontal, 2,
			  Alignment::Middle, 15, 5);
	  layout->setColAlignment(
	  { Alignment::Maximum, Alignment::Fill });
	  layout->setSpacing(0, 10);
	  window->setLayout(layout);

	  {
		  new Label(window, "Floating point :", "sans-bold");
		  textBox = new TxtBox(window);
		  textBox->setEditable(true);
		  textBox->setFixedSize(ivec2(100, 20));
		  textBox->setValue("50");
		  textBox->setUnits("GiB");
		  textBox->setDefaultValue("0.0");
		  textBox->setFontSize(16);
		  textBox->setFormat("[-]?[0-9]*\\.?[0-9]+");
	  }

	  {
		  new Label(window, "Positive integer :", "sans-bold");
		  textBox = new TxtBox(window);
		  textBox->setEditable(true);
		  textBox->setFixedSize(ivec2(100, 20));
		  textBox->setValue("50");
		  textBox->setUnits("Mhz");
		  textBox->setDefaultValue("0.0");
		  textBox->setFontSize(16);
		  textBox->setFormat("[1-9][0-9]*");
	  }

	  {
		  new Label(window, "Checkbox :", "sans-bold");

		  cb = new CheckBox(window, "Check me");
		  cb->setFontSize(16);
		  cb->setChecked(true);
	  }

	  new Label(window, "Combo box :", "sans-bold");
	  ComboBox *cobo =
		  new ComboBox(window, { "Item 1", "Item 2", "Item 3" });
	  cobo->setFontSize(16);
	  cobo->setFixedSize(ivec2(100, 20));

	  new Label(window, "Color button :", "sans-bold");
	  popupBtn = new PopupButton(window, "", 0);
	  popupBtn->setBackgroundColor(Colour(255, 120, 0, 255));
	  popupBtn->setFontSize(16);
	  popupBtn->setFixedSize(ivec2(100, 20));
	  popup = popupBtn->popup();
	  popup->setLayout(new GroupLayout());

	  ColorWheel *colorwheel = new ColorWheel(popup);
	  colorwheel->setColor(popupBtn->backgroundColor());

	  Button *colorBtn = new Button(popup, "Pick");
	  colorBtn->setFixedSize(ivec2(100, 25));
	  Colour c = colorwheel->color();
	  colorBtn->setBackgroundColor(c);

	  colorwheel->setCallback([colorBtn](const Colour &value) {
		  colorBtn->setBackgroundColor(value);
	  });

	  colorBtn->setChangeCallback([colorBtn, popupBtn](bool pushed) {
		  if (pushed) {
			  popupBtn->setBackgroundColor(colorBtn->backgroundColor());
			  popupBtn->setPushed(false);
		  }
	  });

      performLayout (mNVGContext);
   }
   catch (const std::exception & e)
   {
      std::cout << e.what() << std::endl;
   }
}