-/*
- * Menu.h
- *
- * Created on: Aug 8, 2012
- * Author: holy
- */
-
#ifndef GRAPHICS_MENU_H_
#define GRAPHICS_MENU_H_
#include "Font.h"
-#include "../geometry/operators.h"
-#include "../geometry/Point.h"
-#include "../geometry/Vector.h"
+#include "Sprite.h"
+#include "../math/Vector.h"
+#include <algorithm>
#include <vector>
#include <SDL.h>
namespace graphics {
-class Sprite;
+struct MenuProperties {
+ static const int TYPE_ID = 407;
+
+ const Font *font;
+ const Font *disabledFont;
+ const Sprite *cursor;
+ const Sprite *selectedCursor;
+ int charsPerEntry;
+ int rows;
+ int rowGap;
+ int iconSpace;
+ int cols;
+ int colGap;
+ int charsPerNumber;
+ int charsPerAdditionalText;
+ int additionalTextGap;
+ int thirdColumnHack;
+ char delimiter;
+ bool wrapX;
+ bool wrapY;
+
+ MenuProperties()
+ : font(0), disabledFont(0), cursor(0), selectedCursor(0)
+ , charsPerEntry(0), rows(1), rowGap(0)
+ , iconSpace(0), cols(1), colGap(0)
+ , charsPerNumber(0), charsPerAdditionalText(0)
+ , additionalTextGap(0), thirdColumnHack(0), delimiter(':')
+ , wrapX(false), wrapY(false) { }
+
+ static void CreateTypeDescription();
+ static void Construct(void *);
+
+};
-// TODO: alternate font for disabled entries
-// TODO: sprite for the cursor
-// TODO: animation when top row changes
template<class T>
-class Menu {
+class Menu
+: private MenuProperties {
public:
- explicit Menu(const Font *font = NULL, int charsPerEntry = 16, int rows = 1, int rowGap = 0, int cols = 1, int colGap = 0);
+ Menu();
+ Menu(const MenuProperties &);
public:
+ void SetInactive() { state = STATE_INACTIVE; }
+ void SetActive() { state = STATE_ACTIVE; }
+ void SetSelected() { state = STATE_SELECTED; }
+ void SetDualSelection() { state = STATE_DUAL; secondarySelection = selected; }
+ bool IsActive() const { return state == STATE_ACTIVE; }
+ bool HasSelected() const { return state == STATE_SELECTED; }
+ bool InDualMode() const { return state == STATE_DUAL; }
+
int Width() const;
int Height() const;
- int ColWidth() const { return font->CharWidth() * charsPerEntry; }
+ int ColWidth() const;
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; }
+ T &SecondarySelection() { return entries[secondarySelection].value; }
+ const T &SecondarySelection() const { return entries[secondarySelection].value; }
+ const char *SecondaryTitle() const { return entries[secondarySelection].title; }
+ int SecondaryNumber() const { return entries[secondarySelection].number; }
+ bool SecondaryIsEnabled() const { return entries[secondarySelection].enabled; }
+
+ void SwapSelected() { SwapEntriesAt(selected, secondarySelection); }
+ void SwapEntriesAt(int lhs, int rhs) { std::swap(entries[lhs], entries[rhs]); }
+
void NextItem();
void PreviousItem();
void NextRow();
void PreviousRow();
void SelectIndex(int index);
+ int SelectedIndex() const { return selected; }
+ int SecondaryIndex() const { return secondarySelection; }
+ 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, const char *additionalText = 0) { entries.push_back(Entry(title, value, enabled, icon, number, additionalText)); }
+ 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 ClearEntry(int at) { entries[at] = Entry(0, T(), false); }
- void Draw(SDL_Surface *dest, geometry::Point<int> position) const;
+ void Draw(SDL_Surface *dest, const math::Vector<int> &position) const;
private:
int GetRow(int index) const { return index / cols; }
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, const char *additionalText = 0)
+ : title(title), additionalText(additionalText), icon(icon), number(number), value(value), enabled(enabled) { }
const char *title;
+ const char *additionalText;
const Sprite *icon;
+ int number;
T value;
bool enabled;
};
- const Font *font;
std::vector<Entry> entries;
- int charsPerEntry;
- int rows;
- int rowGap;
- int cols;
- int colGap;
int selected;
+ int secondarySelection;
int topRow;
+ enum State {
+ STATE_INACTIVE,
+ STATE_ACTIVE,
+ STATE_SELECTED,
+ STATE_DUAL,
+ };
+ State state;
};
template<class T>
-Menu<T>::Menu(const Font *font, int charsPerEntry, int rows, int rowGap, int cols, int colGap)
-: font(font)
-, charsPerEntry(charsPerEntry)
-, rows(rows)
-, rowGap(rowGap)
-, cols(cols)
-, colGap(colGap)
+Menu<T>::Menu()
+: MenuProperties()
, selected(0)
-, topRow(0) {
+, secondarySelection(0)
+, topRow(0)
+, state(STATE_ACTIVE) {
}
+template<class T>
+Menu<T>::Menu(const MenuProperties &p)
+: MenuProperties(p)
+, selected(0)
+, secondarySelection(0)
+, topRow(0)
+, state(STATE_ACTIVE) {
+
+}
+
+
+template<class T>
+int Menu<T>::ColWidth() const {
+ int width(iconSpace);
+ width += font->CharWidth() * (charsPerEntry + charsPerNumber);
+ if (charsPerNumber) {
+ width += font->CharWidth();
+ }
+ if (charsPerAdditionalText) {
+ width += additionalTextGap + charsPerAdditionalText * font->CharWidth();
+ }
+ return width;
+}
template<class T>
int Menu<T>::Width() const {
template<class T>
void Menu<T>::NextItem() {
- SelectIndex(selected + 1);
+ int index(selected + 1);
+ if (wrapX && index % cols == 0) {
+ index -= cols;
+ }
+ SelectIndex(index);
}
template<class T>
void Menu<T>::PreviousItem() {
- SelectIndex(selected - 1);
+ int index(selected - 1);
+ if (wrapX && selected % cols == 0) {
+ index += cols;
+ }
+ SelectIndex(index);
}
template<class T>
void Menu<T>::NextRow() {
- SelectIndex(selected + cols);
+ int index(selected + cols);
+ if (wrapY && index >= int(entries.size())) {
+ index -= entries.size();
+ }
+ SelectIndex(index);
}
template<class T>
void Menu<T>::PreviousRow() {
- SelectIndex(selected - cols);
+ int index(selected - cols);
+ if (wrapY && index < 0) {
+ index += entries.size();
+ }
+ SelectIndex(index);
}
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 {
+void Menu<T>::Draw(SDL_Surface *dest, const math::Vector<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((i % cols) * (ColWidth() + colGap), (i / cols) * RowHeight());
- font->DrawString(entries[start + i].title, dest, position + offset, charsPerEntry);
+ if (!entries[start + i].title) continue;
+ math::Vector<int> iconOffset(
+ (i % cols) * (ColWidth() + colGap),
+ (i / cols) * RowHeight());
+
+ // This fixes the position of the third column of the inventory and capsule menus.
+ if (thirdColumnHack && i % cols == 2) {
+ iconOffset += math::Vector<int>(font->CharWidth() * thirdColumnHack, 0);
+ }
+
+ if (entries[start + i].icon) {
+ entries[start + i].icon->Draw(dest, position + iconOffset);
+ }
+ math::Vector<int> textOffset(iconOffset.X() + iconSpace, iconOffset.Y());
+ const Font *usedFont(entries[start + i].enabled ? font : disabledFont);
+ usedFont->DrawString(entries[start + i].title, dest, position + textOffset, charsPerEntry);
+
+ textOffset += math::Vector<int>(charsPerEntry * usedFont->CharWidth(), 0);
+
+ if (charsPerAdditionalText) {
+ textOffset += math::Vector<int>(additionalTextGap, 0);
+ if (entries[start + i].additionalText) {
+ usedFont->DrawString(entries[start + i].additionalText, dest, position + textOffset, charsPerAdditionalText);
+ }
+ textOffset += math::Vector<int>(charsPerAdditionalText * usedFont->CharWidth(), 0);
+ }
+
+ if (charsPerNumber) {
+ usedFont->DrawChar(delimiter, dest, position + textOffset);
+ textOffset += math::Vector<int>(usedFont->CharWidth(), 0);
+ usedFont->DrawNumber(entries[start + i].number, dest, position + textOffset, charsPerNumber);
+ }
+ }
+ math::Vector<int> cursorOffset(
+ (selected % cols) * (ColWidth() + colGap) - cursor->Width(),
+ ((selected - start) / cols) * RowHeight());
+ // This fixes the position of the third column of the inventory and capsule menus.
+ if (thirdColumnHack && selected % cols == 2) {
+ cursorOffset += math::Vector<int>(font->CharWidth() * thirdColumnHack, 0);
+ }
+ switch (state) {
+ case STATE_INACTIVE:
+ break;
+ case STATE_ACTIVE:
+ cursor->Draw(dest, position + cursorOffset);
+ break;
+ case STATE_SELECTED:
+ selectedCursor->Draw(dest, position + cursorOffset);
+ break;
+ case STATE_DUAL:
+ cursor->Draw(dest, position + cursorOffset
+ - math::Vector<int>(selectedCursor->Width(), 0));
+ if (secondarySelection >= start && secondarySelection <= end) {
+ math::Vector<int> secondaryOffset(
+ (secondarySelection % cols) * (ColWidth() + colGap) - cursor->Width(),
+ ((secondarySelection - start) / cols) * RowHeight());
+ selectedCursor->Draw(dest, position + secondaryOffset);
+ }
+ break;
}
}
}
-#endif /* GRAPHICS_MENU_H_ */
+#endif
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