ES-DE/src/components/MenuComponent.cpp
2014-03-15 12:18:50 -05:00

96 lines
2.7 KiB
C++

#include "MenuComponent.h"
#include "ButtonComponent.h"
#define BUTTON_GRID_HEIGHT ((float)Font::get(FONT_SIZE_MEDIUM)->getHeight() + 32)
using namespace Eigen;
MenuComponent::MenuComponent(Window* window, const char* title) : GuiComponent(window),
mBackground(window), mGrid(window, Vector2i(1, 3))
{
addChild(&mBackground);
addChild(&mGrid);
mBackground.setImagePath(":/frame.png");
// set up title which will never change
mTitle = std::make_shared<TextComponent>(mWindow, strToUpper(title), Font::get(FONT_SIZE_LARGE), 0x555555FF, true);
mGrid.setEntry(mTitle, Vector2i(0, 0), false);
// set up list which will never change (externally, anyway)
mList = std::make_shared<ComponentList>(mWindow);
mGrid.setEntry(mList, Vector2i(0, 1), true);
updateGrid();
updateSize();
mGrid.resetCursor();
}
void MenuComponent::updateSize()
{
float height = mTitle->getSize().y() + mList->getTotalRowHeight() + BUTTON_GRID_HEIGHT + 2;
if(height > Renderer::getScreenHeight() * 0.7f)
height = Renderer::getScreenHeight() * 0.7f;
setSize(Renderer::getScreenWidth() * 0.4f, height);
}
void MenuComponent::onSizeChanged()
{
mBackground.fitTo(mSize, Eigen::Vector3f::Zero(), Eigen::Vector2f(-32, -32));
// update grid row/col sizes
mGrid.setRowHeightPerc(0, mTitle->getSize().y() / mSize.y());
mGrid.setRowHeightPerc(2, (BUTTON_GRID_HEIGHT) / mSize.y());
mGrid.setSize(mSize);
}
void MenuComponent::addButton(const std::string& name, const std::string& helpText, const std::function<void()>& callback)
{
mButtons.push_back(std::make_shared<ButtonComponent>(mWindow, strToUpper(name), helpText, callback));
updateGrid();
updateSize();
}
void MenuComponent::updateGrid()
{
if(mButtonGrid)
mGrid.removeEntry(mButtonGrid);
if(mButtons.size())
{
mButtonGrid = makeButtonGrid(mWindow, mButtons);
mGrid.setEntry(mButtonGrid, Vector2i(0, 2), true, false);
}else{
mButtonGrid.reset();
}
}
std::vector<HelpPrompt> MenuComponent::getHelpPrompts()
{
return mGrid.getHelpPrompts();
}
std::shared_ptr<ComponentGrid> makeButtonGrid(Window* window, const std::vector< std::shared_ptr<ButtonComponent> >& buttons)
{
std::shared_ptr<ComponentGrid> buttonGrid = std::make_shared<ComponentGrid>(window, Vector2i(buttons.size(), 1));
float buttonGridWidth = 16.0f * buttons.size(); // initialize to padding
for(int i = 0; i < (int)buttons.size(); i++)
{
buttonGrid->setEntry(buttons.at(i), Vector2i(i, 0), true, false);
buttonGridWidth += buttons.at(i)->getSize().x();
}
for(unsigned int i = 0; i < buttons.size(); i++)
{
buttonGrid->setColWidthPerc(i, (buttons.at(i)->getSize().x() + 16) / buttonGridWidth);
}
buttonGrid->setSize(buttonGridWidth, buttons.at(0)->getSize().y());
return buttonGrid;
}