class Sprite;
-// TODO: alternate font for disabled entries
-// TODO: sprite for the cursor
// TODO: animation when top row changes
template<class T>
class Menu {
public:
Menu();
- Menu(const Font *font, const Font *disabledFont, const Sprite *cursor, int charsPerEntry, int rows, int rowGap = 0, int cols = 1, int colGap = 0);
+ Menu(const Font *font, const Font *disabledFont, const Sprite *cursor, int charsPerEntry, int rows, int rowGap = 0, int iconSpace = 0, int cols = 1, int colGap = 0, int charsPerNumber = 0, char delimiter = ':');
public:
int Width() const;
int Height() const;
- int ColWidth() const { return font->CharWidth() * charsPerEntry; }
+ int ColWidth() const { return iconSpace + font->CharWidth() * (charsPerEntry + charsPerNumber) + (charsPerNumber ? font->CharWidth() : 0); }
int RowHeight() const { return font->CharHeight() + rowGap; }
+ int CharsPerEntry() const { return charsPerEntry; }
T &Selected() { return entries[selected].value; }
const T &Selected() const { return entries[selected].value; }
const char *SelectedTitle() const { return entries[selected].title; }
+ int SelectedNumber() const { return entries[selected].number; }
bool SelectedIsEnabled() const { return entries[selected].enabled; }
void NextItem();
void NextRow();
void PreviousRow();
void SelectIndex(int index);
+ int SelectedIndex() const { return selected; }
+ bool IsSelected(int index) const { return index == selected; }
int EntryCount() const { return entries.size(); }
T &ValueAt(int index) { return entries[index].value; }
const T &ValueAt(int index) const { return entries[index].value; }
- void Add(const char *title, const T &value, bool enabled = true, const Sprite *icon = 0) { entries.push_back(Entry(title, value, enabled, icon)); }
+ void Add(const char *title, const T &value, bool enabled = true, const Sprite *icon = 0, int number = 0) { entries.push_back(Entry(title, value, enabled, icon, number)); }
+ void AddEmptyEntry() { entries.push_back(Entry(0, T(), false)); }
void Disable(int index) { entries[index].enabled = false; }
void Enable(int index) { entries[index].enabled = true; }
void Reserve(int n) { entries.reserve(n); }
+ void Clear() { entries.clear(); }
void Draw(SDL_Surface *dest, geometry::Point<int> position) const;
private:
struct Entry {
- Entry(const char *title, const T &value, bool enabled = true, const Sprite *icon = 0)
- : title(title), icon(icon), value(value), enabled(enabled) { }
+ Entry(const char *title, const T &value, bool enabled = true, const Sprite *icon = 0, int number = 0)
+ : title(title), icon(icon), number(number), value(value), enabled(enabled) { }
const char *title;
const Sprite *icon;
+ int number;
T value;
bool enabled;
};
int charsPerEntry;
int rows;
int rowGap;
+ int iconSpace;
int cols;
int colGap;
int selected;
int topRow;
+ int charsPerNumber;
+ char delimiter;
};
, charsPerEntry(0)
, rows(0)
, rowGap(0)
+, iconSpace(0)
, cols(0)
, colGap(0)
, selected(0)
-, topRow(0) {
+, topRow(0)
+, charsPerNumber(0)
+, delimiter(':') {
}
template<class T>
-Menu<T>::Menu(const Font *font, const Font *disabledFont, const Sprite *cursor, int charsPerEntry, int rows, int rowGap, int cols, int colGap)
+Menu<T>::Menu(const Font *font, const Font *disabledFont, const Sprite *cursor, int charsPerEntry, int rows, int rowGap, int iconSpace, int cols, int colGap, int charsPerNumber, char delimiter)
: font(font)
, disabledFont(disabledFont ? disabledFont : font)
, cursor(cursor)
, charsPerEntry(charsPerEntry)
, rows(rows)
, rowGap(rowGap)
+, iconSpace(iconSpace)
, cols(cols)
, colGap(colGap)
, selected(0)
-, topRow(0) {
+, topRow(0)
+, charsPerNumber(charsPerNumber)
+, delimiter(delimiter) {
}
template<class T>
void Menu<T>::SelectIndex(int index) {
- if (index < 0 || entries.size() < index) return;
+ if (index < 0 || int(entries.size()) <= index) return;
selected = index;
- if (GetRow(selected) - rows > topRow) {
- topRow = GetRow(selected) - rows;
+ if (topRow <= GetRow(selected) - rows) {
+ topRow = GetRow(selected) - rows + 1;
} else if (GetRow(selected) < topRow) {
topRow = GetRow(selected);
}
template<class T>
void Menu<T>::Draw(SDL_Surface *dest, geometry::Point<int> position) const {
int start(topRow * cols);
- int slots((topRow + rows) * cols);
+ int slots(rows * cols);
int items(entries.size() - start);
- int end(items < slots ? items : slots);
+ int end(start + (items < slots ? items : slots));
for (int i(0), count(end - start); i < count; ++i) {
- geometry::Vector<int> offset(
+ if (!entries[start + i].title) continue;
+ geometry::Vector<int> iconOffset(
(i % cols) * (ColWidth() + colGap),
(i / cols) * RowHeight());
- if (entries[start + i].enabled) {
- font->DrawString(entries[start + i].title, dest, position + offset, charsPerEntry);
- } else {
- disabledFont->DrawString(entries[start + i].title, dest, position + offset, charsPerEntry);
+ if (entries[start + i].icon) {
+ entries[start + i].icon->Draw(dest, position + iconOffset);
+ }
+ geometry::Vector<int> labelOffset(iconOffset.X() + iconSpace, iconOffset.Y());
+ const Font *usedFont(entries[start + i].enabled ? font : disabledFont);
+ usedFont->DrawString(entries[start + i].title, dest, position + labelOffset, charsPerEntry);
+
+ if (charsPerNumber) {
+ geometry::Vector<int> delimiterOffset(labelOffset.X() + charsPerEntry * usedFont->CharWidth(), labelOffset.Y());
+ usedFont->DrawChar(delimiter, dest, position + delimiterOffset);
+ geometry::Vector<int> numberOffset(delimiterOffset.X() + usedFont->CharWidth(), delimiterOffset.Y());
+ usedFont->DrawNumber(entries[start + i].number, dest, position + numberOffset);
}
}
geometry::Vector<int> cursorOffset(
(selected % cols) * (ColWidth() + colGap) - cursor->Width(),
- (selected / cols) * RowHeight());
+ ((selected - start) / cols) * RowHeight());
cursor->Draw(dest, position + cursorOffset);
}