stuff-from-scratch/src/ui_elements/widgets/TextBox.cpp
2022-11-14 13:07:11 +00:00

103 lines
2.2 KiB
C++

#include "TextBox.h"
#include "TextNode.h"
#include "VisualLayer.h"
#include "GeometryNode.h"
#include "KeyboardEvent.h"
#include <sstream>
TextBox::TextBox()
: Widget(),
mContent(),
mCaps(false)
{
mBackgroundColor = Color(250, 250, 250);
mPadding = {10, 0, 10, 0};
}
std::unique_ptr<TextBox> TextBox::Create()
{
return std::make_unique<TextBox>();
}
void TextBox::setContent(const std::string& text)
{
mContent = text;
}
std::string TextBox::getContent() const
{
return mContent;
}
void TextBox::appendContent(const std::string& text)
{
mContent += text;
}
bool TextBox::onMyKeyboardEvent(const KeyboardEvent* event)
{
if(!event) return false;
const auto keyString = event->GetKeyString();
if (keyString == "KEY_RETURN")
{
appendContent("\n");
}
else if (keyString == "KEY_BACK")
{
mContent = mContent.substr(0, mContent.size()-1);
}
else if (keyString == "KEY_SPACE")
{
appendContent(" ");
}
else if (keyString == "KEY_CAPS")
{
mCaps = !mCaps;
}
else
{
if (mCaps && !keyString.empty())
{
const char c = std::toupper(keyString[0]);
appendContent(std::string(&c));
}
else
{
appendContent(keyString);
}
}
return true;
}
void TextBox::onPaintEvent(const PaintEvent* event)
{
mMyLayers.clear();
addBackground(event);
double offset = 0;
if(!mContent.empty())
{
std::stringstream stream(mContent);
std::string segment;
std::vector<std::string> seglist;
while(std::getline(stream, segment, '\n'))
{
seglist.push_back(segment);
}
for(const auto& line : seglist)
{
auto loc = DiscretePoint(mLocation.GetX() + mPadding.mLeft,
mLocation.GetY() + mPadding.mTop + unsigned(offset));
auto textLayer = VisualLayer::Create();
auto textElement = TextNode::Create(line, loc);
textElement->setFillColor(mBackgroundColor);
textLayer->setTextNode(std::move(textElement));
mMyLayers.push_back(std::move(textLayer));
offset += 20;
}
}
addMyLayers();
}