ES-DE/es-core/src/components/TextListComponent.h
2021-08-18 21:03:25 +02:00

490 lines
17 KiB
C++

// SPDX-License-Identifier: MIT
//
// EmulationStation Desktop Edition
// TextListComponent.h
//
// Text list used for displaying and navigating the gamelist views.
//
#ifndef ES_APP_COMPONENTS_TEXT_LIST_COMPONENT_H
#define ES_APP_COMPONENTS_TEXT_LIST_COMPONENT_H
#include "Log.h"
#include "Sound.h"
#include "components/IList.h"
#include "resources/Font.h"
#include "utils/StringUtil.h"
#include <memory>
class TextCache;
struct TextListData {
unsigned int colorId;
std::shared_ptr<TextCache> textCache;
};
// A graphical list. Supports multiple colors for rows and scrolling.
template <typename T> class TextListComponent : public IList<TextListData, T>
{
protected:
using IList<TextListData, T>::mEntries;
using IList<TextListData, T>::listUpdate;
using IList<TextListData, T>::listInput;
using IList<TextListData, T>::listRenderTitleOverlay;
using IList<TextListData, T>::getTransform;
using IList<TextListData, T>::mSize;
using IList<TextListData, T>::mCursor;
using IList<TextListData, T>::mWindow;
using IList<TextListData, T>::IList;
public:
using IList<TextListData, T>::size;
using IList<TextListData, T>::isScrolling;
using IList<TextListData, T>::stopScrolling;
TextListComponent(Window* window);
bool input(InputConfig* config, Input input) override;
void update(int deltaTime) override;
void render(const glm::mat4& parentTrans) override;
void applyTheme(const std::shared_ptr<ThemeData>& theme,
const std::string& view,
const std::string& element,
unsigned int properties) override;
void add(const std::string& name, const T& obj, unsigned int colorId);
enum Alignment {
ALIGN_LEFT, // Replace with AllowShortEnumsOnASingleLine: false (clang-format >=11.0).
ALIGN_CENTER,
ALIGN_RIGHT
};
void setAlignment(Alignment align) { mAlignment = align; }
void setCursorChangedCallback(const std::function<void(CursorState state)>& func)
{
mCursorChangedCallback = func;
}
void setFont(const std::shared_ptr<Font>& font)
{
mFont = font;
for (auto it = mEntries.begin(); it != mEntries.end(); it++)
it->data.textCache.reset();
}
void setUppercase(bool /*uppercase*/)
{
mUppercase = true;
for (auto it = mEntries.begin(); it != mEntries.end(); it++)
it->data.textCache.reset();
}
void setSelectorHeight(float selectorScale) { mSelectorHeight = selectorScale; }
void setSelectorOffsetY(float selectorOffsetY) { mSelectorOffsetY = selectorOffsetY; }
void setSelectorColor(unsigned int color) { mSelectorColor = color; }
void setSelectorColorEnd(unsigned int color) { mSelectorColorEnd = color; }
void setSelectorColorGradientHorizontal(bool horizontal)
{
mSelectorColorGradientHorizontal = horizontal;
}
void setSelectedColor(unsigned int color) { mSelectedColor = color; }
void setColor(unsigned int id, unsigned int color) { mColors[id] = color; }
void setLineSpacing(float lineSpacing) { mLineSpacing = lineSpacing; }
protected:
virtual void onScroll() override
{
if (!NavigationSounds::getInstance()->isPlayingThemeNavigationSound(SCROLLSOUND))
NavigationSounds::getInstance()->playThemeNavigationSound(SCROLLSOUND);
}
virtual void onCursorChanged(const CursorState& state) override;
private:
int mMarqueeOffset;
int mMarqueeOffset2;
int mMarqueeTime;
bool mMarqueeScroll;
Alignment mAlignment;
float mHorizontalMargin;
std::function<void(CursorState state)> mCursorChangedCallback;
std::shared_ptr<Font> mFont;
bool mUppercase;
float mLineSpacing;
float mSelectorHeight;
float mSelectorOffsetY;
unsigned int mSelectorColor;
unsigned int mSelectorColorEnd;
bool mSelectorColorGradientHorizontal = true;
unsigned int mSelectedColor;
static const unsigned int COLOR_ID_COUNT = 2;
unsigned int mColors[COLOR_ID_COUNT];
ImageComponent mSelectorImage;
};
template <typename T>
TextListComponent<T>::TextListComponent(Window* window)
: IList<TextListData, T>(window)
, mSelectorImage(window)
{
mMarqueeOffset = 0;
mMarqueeOffset2 = 0;
mMarqueeTime = 0;
mMarqueeScroll = false;
mHorizontalMargin = 0.0f;
mAlignment = ALIGN_CENTER;
mFont = Font::get(FONT_SIZE_MEDIUM);
mUppercase = false;
mLineSpacing = 1.5f;
mSelectorHeight = mFont->getSize() * 1.5f;
mSelectorOffsetY = 0;
mSelectorColor = 0x000000FF;
mSelectorColorEnd = 0x000000FF;
mSelectorColorGradientHorizontal = true;
mSelectedColor = 0;
mColors[0] = 0x0000FFFF;
mColors[1] = 0x00FF00FF;
}
template <typename T> void TextListComponent<T>::render(const glm::mat4& parentTrans)
{
if (size() == 0)
return;
glm::mat4 trans{parentTrans * getTransform()};
std::shared_ptr<Font>& font{mFont};
int startEntry{0};
float y{0.0f};
const float entrySize{std::max(font->getHeight(1.0), static_cast<float>(font->getSize())) *
mLineSpacing};
// Number of entries that can fit on the screen simultaneously.
int screenCount = static_cast<int>(mSize.y / entrySize + 0.5f);
if (size() >= screenCount) {
startEntry = mCursor - screenCount / 2;
if (startEntry < 0)
startEntry = 0;
if (startEntry >= size() - screenCount)
startEntry = size() - screenCount;
}
int listCutoff = startEntry + screenCount;
if (listCutoff > size())
listCutoff = size();
// Draw selector bar.
if (startEntry < listCutoff) {
if (mSelectorImage.hasImage()) {
mSelectorImage.setPosition(0.0f, (mCursor - startEntry) * entrySize + mSelectorOffsetY,
0.0f);
mSelectorImage.render(trans);
}
else {
Renderer::setMatrix(trans);
Renderer::drawRect(0.0f, (mCursor - startEntry) * entrySize + mSelectorOffsetY, mSize.x,
mSelectorHeight, mSelectorColor, mSelectorColorEnd,
mSelectorColorGradientHorizontal);
}
}
if (Settings::getInstance()->getBool("DebugText")) {
Renderer::drawRect(mHorizontalMargin, 0.0f, mSize.x - mHorizontalMargin * 2.0f, mSize.y,
0x00000033, 0x00000033);
Renderer::drawRect(0.0f, 0.0f, mSize.x, mSize.y, 0x0000FF33, 0x0000FF33);
}
// Clip to inside margins.
glm::vec3 dim{mSize.x, mSize.y, 0.0f};
dim.x = (trans[0].x * dim.x + trans[3].x) - trans[3].x;
dim.y = (trans[1].y * dim.y + trans[3].y) - trans[3].y;
Renderer::pushClipRect(
glm::ivec2{static_cast<int>(trans[3].x + mHorizontalMargin), static_cast<int>(trans[3].y)},
glm::ivec2{static_cast<int>(dim.x - mHorizontalMargin * 2.0f), static_cast<int>(dim.y)});
for (int i = startEntry; i < listCutoff; i++) {
typename IList<TextListData, T>::Entry& entry = mEntries.at(static_cast<unsigned int>(i));
unsigned int color;
if (mCursor == i && mSelectedColor)
color = mSelectedColor;
else
color = mColors[entry.data.colorId];
if (!entry.data.textCache)
entry.data.textCache = std::unique_ptr<TextCache>(font->buildTextCache(
mUppercase ? Utils::String::toUpper(entry.name) : entry.name, 0, 0, 0x000000FF));
// If a game is marked as hidden, lower the text opacity a lot.
// If a game is marked to not be counted, lower the opacity a moderate amount.
if (entry.object->getHidden())
entry.data.textCache->setColor(color & 0xFFFFFF44);
else if (!entry.object->getCountAsGame())
entry.data.textCache->setColor(color & 0xFFFFFF77);
else
entry.data.textCache->setColor(color);
glm::vec3 offset{0.0f, y, 0.0f};
switch (mAlignment) {
case ALIGN_LEFT:
offset.x = mHorizontalMargin;
break;
case ALIGN_CENTER:
offset.x =
static_cast<float>((mSize.x - entry.data.textCache->metrics.size.x) / 2.0f);
if (offset.x < mHorizontalMargin)
offset.x = mHorizontalMargin;
break;
case ALIGN_RIGHT:
offset.x = (mSize.x - entry.data.textCache->metrics.size.x);
offset.x -= mHorizontalMargin;
if (offset.x < mHorizontalMargin)
offset.x = mHorizontalMargin;
break;
}
// Render text.
glm::mat4 drawTrans{trans};
// Currently selected item text might be scrolling.
if (mCursor == i && mMarqueeOffset > 0)
drawTrans = glm::translate(
drawTrans, offset - glm::vec3{static_cast<float>(mMarqueeOffset), 0.0f, 0.0f});
else
drawTrans = glm::translate(drawTrans, offset);
// Needed to avoid flickering when returning to the start position.
if (mMarqueeOffset == 0 && mMarqueeOffset2 == 0)
mMarqueeScroll = false;
Renderer::setMatrix(drawTrans);
font->renderTextCache(entry.data.textCache.get());
// Render currently selected row again if marquee is scrolled far enough for it to repeat.
if ((mCursor == i && mMarqueeOffset2 < 0) || (mCursor == i && mMarqueeScroll)) {
mMarqueeScroll = true;
drawTrans = trans;
drawTrans = glm::translate(
drawTrans, offset - glm::vec3{static_cast<float>(mMarqueeOffset2), 0.0f, 0.0f});
Renderer::setMatrix(drawTrans);
font->renderTextCache(entry.data.textCache.get());
}
y += entrySize;
}
Renderer::popClipRect();
listRenderTitleOverlay(trans);
GuiComponent::renderChildren(trans);
}
template <typename T> bool TextListComponent<T>::input(InputConfig* config, Input input)
{
if (size() > 0) {
if (input.value != 0) {
if (config->isMappedLike("down", input)) {
listInput(1);
return true;
}
if (config->isMappedLike("up", input)) {
listInput(-1);
return true;
}
if (config->isMappedLike("rightshoulder", input)) {
listInput(10);
return true;
}
if (config->isMappedLike("leftshoulder", input)) {
listInput(-10);
return true;
}
if (config->isMappedLike("righttrigger", input)) {
return this->listLastRow();
}
if (config->isMappedLike("lefttrigger", input)) {
return this->listFirstRow();
}
}
else {
if (config->isMappedLike("down", input) || config->isMappedLike("up", input) ||
config->isMappedLike("rightshoulder", input) ||
config->isMappedLike("leftshoulder", input) ||
config->isMappedLike("lefttrigger", input) ||
config->isMappedLike("righttrigger", input))
stopScrolling();
}
}
return GuiComponent::input(config, input);
}
template <typename T> void TextListComponent<T>::update(int deltaTime)
{
listUpdate(deltaTime);
if (mWindow->isScreensaverActive() || !mWindow->getAllowTextScrolling())
stopScrolling();
if (!isScrolling() && size() > 0) {
// Always reset the marquee offsets.
mMarqueeOffset = 0;
mMarqueeOffset2 = 0;
// If we're not scrolling and this object's text exceeds our size, then marquee it.
const float textLength = mFont
->sizeText(Utils::String::toUpper(
mEntries.at(static_cast<unsigned int>(mCursor)).name))
.x;
const float limit = mSize.x - mHorizontalMargin * 2.0f;
if (textLength > limit) {
// Loop the text.
const float speed = mFont->sizeText("ABCDEFGHIJKLMNOPQRSTUVWXYZ").x * 0.247f;
const float delay = 3000.0f;
const float scrollLength = textLength;
const float returnLength = speed * 1.5f;
const float scrollTime = (scrollLength * 1000.0f) / speed;
const float returnTime = (returnLength * 1000.0f) / speed;
const int maxTime = static_cast<int>(delay + scrollTime + returnTime);
mMarqueeTime += deltaTime;
while (mMarqueeTime > maxTime)
mMarqueeTime -= maxTime;
mMarqueeOffset = static_cast<int>(Utils::Math::loop(delay, scrollTime + returnTime,
static_cast<float>(mMarqueeTime),
scrollLength + returnLength));
if (mMarqueeOffset > (scrollLength - (limit - returnLength)))
mMarqueeOffset2 = static_cast<int>(mMarqueeOffset - (scrollLength + returnLength));
}
}
GuiComponent::update(deltaTime);
}
// List management stuff.
template <typename T>
void TextListComponent<T>::add(const std::string& name, const T& obj, unsigned int color)
{
assert(color < COLOR_ID_COUNT);
typename IList<TextListData, T>::Entry entry;
entry.name = name;
entry.object = obj;
entry.data.colorId = color;
static_cast<IList<TextListData, T>*>(this)->add(entry);
}
template <typename T> void TextListComponent<T>::onCursorChanged(const CursorState& state)
{
mMarqueeOffset = 0;
mMarqueeOffset2 = 0;
mMarqueeTime = 0;
if (mCursorChangedCallback)
mCursorChangedCallback(state);
}
template <typename T>
void TextListComponent<T>::applyTheme(const std::shared_ptr<ThemeData>& theme,
const std::string& view,
const std::string& element,
unsigned int properties)
{
GuiComponent::applyTheme(theme, view, element, properties);
const ThemeData::ThemeElement* elem = theme->getElement(view, element, "textlist");
if (!elem)
return;
using namespace ThemeFlags;
if (properties & COLOR) {
if (elem->has("selectorColor")) {
setSelectorColor(elem->get<unsigned int>("selectorColor"));
setSelectorColorEnd(elem->get<unsigned int>("selectorColor"));
}
if (elem->has("selectorColorEnd"))
setSelectorColorEnd(elem->get<unsigned int>("selectorColorEnd"));
if (elem->has("selectorGradientType"))
setSelectorColorGradientHorizontal(
!(elem->get<std::string>("selectorGradientType").compare("horizontal")));
if (elem->has("selectedColor"))
setSelectedColor(elem->get<unsigned int>("selectedColor"));
if (elem->has("primaryColor"))
setColor(0, elem->get<unsigned int>("primaryColor"));
if (elem->has("secondaryColor"))
setColor(1, elem->get<unsigned int>("secondaryColor"));
}
setFont(Font::getFromTheme(elem, properties, mFont));
const float selectorHeight =
std::max(mFont->getHeight(1.0), static_cast<float>(mFont->getSize())) * mLineSpacing;
setSelectorHeight(selectorHeight);
if (properties & ALIGNMENT) {
if (elem->has("alignment")) {
const std::string& str = elem->get<std::string>("alignment");
if (str == "left")
setAlignment(ALIGN_LEFT);
else if (str == "center")
setAlignment(ALIGN_CENTER);
else if (str == "right")
setAlignment(ALIGN_RIGHT);
else
LOG(LogError) << "Unknown TextListComponent alignment \"" << str << "\"!";
}
if (elem->has("horizontalMargin")) {
mHorizontalMargin = elem->get<float>("horizontalMargin") *
(this->mParent ? this->mParent->getSize().x :
static_cast<float>(Renderer::getScreenWidth()));
}
}
if (properties & FORCE_UPPERCASE && elem->has("forceUppercase"))
setUppercase(elem->get<bool>("forceUppercase"));
if (properties & LINE_SPACING) {
if (elem->has("lineSpacing"))
setLineSpacing(elem->get<float>("lineSpacing"));
if (elem->has("selectorHeight"))
setSelectorHeight(elem->get<float>("selectorHeight") * Renderer::getScreenHeight());
if (elem->has("selectorOffsetY")) {
float scale = this->mParent ? this->mParent->getSize().y :
static_cast<float>(Renderer::getScreenHeight());
setSelectorOffsetY(elem->get<float>("selectorOffsetY") * scale);
}
else {
setSelectorOffsetY(0.0);
}
}
if (elem->has("selectorImagePath")) {
std::string path = elem->get<std::string>("selectorImagePath");
bool tile = elem->has("selectorImageTile") && elem->get<bool>("selectorImageTile");
mSelectorImage.setImage(path, tile);
mSelectorImage.setSize(mSize.x, mSelectorHeight);
mSelectorImage.setColorShift(mSelectorColor);
mSelectorImage.setColorShiftEnd(mSelectorColorEnd);
}
else {
mSelectorImage.setImage("");
}
}
#endif // ES_APP_COMPONENTS_TEXT_LIST_COMPONENT_H