Button.cpp

#include "Button.hpp"
#include <iostream>
 
namespace Chesto {
 
CST_Color Button::colors[2] = {
    { 0x00, 0x00, 0x00, 0xff }, // light
    { 0xff, 0xff, 0xff, 0xff }, // dark
};
 
Button::Button(std::string message, int button, bool dark, int size, int width)
    : text(message, size, &colors[dark])
    , dark(dark)
    , physical(button)
    , icon(getControllerButtonImageForPlatform(button, !dark, false))
{
 
    super::addStackMember(&text);
    super::addStackMember(&icon);
 
    // on initialization, store the last gamepad info
    myLastSeenGamepad = "";
 
    icon.resize(text.height*1.5, text.height*1.5);
    
    if (shouldRenderGlossy()) {
        icon.hide();
    }
 
    fixedWidth = width;
 
    updateBounds();
 
    this->touchable = true;
    this->hasBackground = true;
}
 
void Button::updateBounds()
{
    float effectiveScale = getEffectiveScale();
    int PADDING = (int)(10 * effectiveScale);
 
    int bWidth = PADDING * 0.5 * (icon.width != 0); // gap space between button
    
    if (shouldRenderGlossy()) {
        icon.position(0, 0); // the icon is the overlay, same size as the button
    } else {
        // make room for the button label, if we have a button
        text.position(PADDING * 2 + bWidth + icon.width, PADDING);
        icon.position(PADDING * 1.7, PADDING + (text.height - icon.height) / 2);
    }
 
    this->width = (fixedWidth > 0) ? fixedWidth : text.width + PADDING * 4 + bWidth + (icon.hidden ? 0 : icon.width);
    this->height = text.height + PADDING * 2;
 
    if (shouldRenderGlossy()) {
        text.position(width / 2 - text.width / 2, PADDING); // y is already centered
    }
 
    // update the bg color here too
    if (dark)
    {
        backgroundColor = RootDisplay::mainDisplay->backgroundColor;
        backgroundColor.r += 0x25/255.0;
        backgroundColor.g += 0x25/255.0;
        backgroundColor.b += 0x25/255.0;
        // backgroundColor.r = fmin(backgroundColor.r, 1.0);
    }
    else
        backgroundColor = (rgb){ 0xee/255.0, 0xee/255.0, 0xee/255.0 };
    
    text.setColor(colors[dark]);
    text.update();
}
 
void Button::updateText(const std::string &inc_text)
{
    this->text.setText(inc_text);
    this->text.update();
    updateBounds();
}
 
std::string Button::getControllerButtonImageForPlatform(int buttonInc, bool isGray, bool isOutline)
{
    // grab the current gamepad info
    GamepadInfo& gamepad = InputEvents::getLastGamepadInfo();
 
    // find the button index in the gamepad.buttons array
    // TODO: use a hashmap instead of an array
    unsigned int button = buttonInc;
    if (gamepad.buttons != nullptr) {
        for (int i = 0; i < TOTAL_BUTTONS; i++)
        {
            if (gamepad.buttons[i] == button)
            {
                auto outlineSuffix = isOutline ? "_outline" : "";
                auto graySuffix = isGray ? "_gray" : "";
                auto retVal = RAMFS "res/controllers/buttons/" + gamepad.prefix + "_" + gamepad.names[i] + outlineSuffix + graySuffix + ".svg";
                return retVal;
            }
        }
    }
    // if we didn't find it, return an empty string
    printf("Button %d not found in gamepad, returning empty string\n", button);
    return "";
}
 
void Button::render(Element* parent)
{
    if (hidden) return;
 
    CST_SetDrawBlend(RootDisplay::renderer, true);
 
    this->recalcPosition(parent);
 
    if (shouldRenderGlossy()) {
        // draw a glossy button
        auto r = backgroundColor.r * 0xff;
        auto g = backgroundColor.g * 0xff;
        auto b = backgroundColor.b * 0xff;
 
        CST_roundedBoxRGBA(
            RootDisplay::renderer,
            xAbs, yAbs, xAbs + width, yAbs + height, cornerRadius,
            r, g, b, 0xff
        );
        // slightly darker overlay for the second half of the button
        auto darkenOffset = dark ? 0x10 : 0x00; // use a deeper color for dark buttons
        CST_roundedBoxRGBA(
            RootDisplay::renderer,
            xAbs, yAbs + height / 2, xAbs + width, yAbs + height, cornerRadius,
            0x00, 0x00, 0x00, 0x15 + darkenOffset
        );
        // inner white outline around the whole thing
        auto p = 0.5;
        CST_roundedRectangleRGBA(
            RootDisplay::renderer,
            xAbs+2*p, yAbs+2*p, xAbs + width - p, yAbs + height - p, cornerRadius,
            0xff, 0xff, 0xff, 0x40
        );
        // thicker outer gray outline
        CST_roundedRectangleRGBA(
            RootDisplay::renderer,
            xAbs, yAbs, xAbs + width, yAbs + height, cornerRadius,
            0x00, 0x00, 0x00, 0x80
        );
    }
 
    // render text/icon and bg if needed
    super::render(parent);
 
    CST_SetDrawBlend(RootDisplay::renderer, false);
}
 
bool Button::process(InputEvents* event)
{
    if (event->isKeyDown() && this->physical != 0 && event->held(this->physical))
    {
        // invoke our action, since we saw a physical button press that matches!
        this->action();
        return true;
    }
 
    bool ret = false;
 
    // if the last gamepad is different from the current one, update the button image
    if (myLastSeenGamepad != InputEvents::lastGamepadKey || needsRedraw)
    {
        needsRedraw = false;
        if (shouldRenderGlossy()) {
            icon.hide();
            hasBackground = false; // we'll handle our own two-toned and outlined background drawing
            cornerRadius = fmin(25, height / 4); // bound the corner radius to the height of our darker highlight
        } else {
            auto newPath = getControllerButtonImageForPlatform(this->physical, !dark, false);
            icon.unhide();
            hasBackground = true;
            icon.loadPath(newPath);
            icon.resize(text.height*1.5, text.height*1.5);
        }
        myLastSeenGamepad = InputEvents::lastGamepadKey;
    }
 
    bool parentHandled = super::process(event);
    return parentHandled || ret;
}
  
const std::string Button::getText()
{
    return this->text.text;
}
 
bool Button::shouldRenderGlossy()
{
#ifdef WII_MOCK
    return true;
#endif
 
    return InputEvents::lastGamepadKey == "Wii Remote" || InputEvents::lastGamepadKey == "Wii Remote and Nunchuk";
}
 
} // namespace Chesto