raze/wadsrc/static/zscript/engine/ui/menu/listmenu.zs

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/*
** listmenu.zs
** The main menu class
**
**---------------------------------------------------------------------------
** Copyright 2010-2020 Christoph Oelckers
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
class ListMenuDescriptor : MenuDescriptor native
{
enum EScale
{
CleanScale = -1,
OptCleanScale = -2
};
native Array<ListMenuItem> mItems;
native int mSelectedItem;
native double mSelectOfsX;
native double mSelectOfsY;
native TextureID mSelector;
native int mDisplayTop;
native double mXpos, mYpos;
native int mWLeft, mWRight;
native int mLinespacing; // needs to be stored for dynamically created menus
native int mAutoselect; // this can only be set by internal menu creation functions
native Font mFont;
native int mFontColor;
native int mFontColor2;
native bool mCenter;
native bool mAnimatedTransition;
native bool mAnimated;
native int mVirtWidth, mVirtHeight;
native void Reset();
int DisplayWidth()
{
if (mVirtWidth == OptCleanScale) return m_cleanscale ? CleanScale : 320;
return mVirtWidth;
}
int DisplayHeight()
{
if (mVirtWidth == OptCleanScale) return m_cleanscale ? CleanScale : 200;
return mVirtHeight;
}
}
//=============================================================================
//
// list menu class runs a menu described by a DListMenuDescriptor
//
//=============================================================================
class ListMenu : Menu
{
ListMenuDescriptor mDesc;
MenuItemBase mFocusControl;
virtual void Init(Menu parent = NULL, ListMenuDescriptor desc = NULL)
{
Super.Init(parent);
mDesc = desc;
AnimatedTransition = mDesc.mAnimatedTransition;
Animated = mDesc.mAnimated;
if (desc.mCenter)
{
double center = 160;
for(int i=0; i < mDesc.mItems.Size(); i++)
{
double xpos = mDesc.mItems[i].GetX();
int width = mDesc.mItems[i].GetWidth();
double curx = mDesc.mSelectOfsX;
if (width > 0 && mDesc.mItems[i].Selectable())
{
double left = 160 - (width - curx) / 2 - curx;
if (left < center) center = left;
}
}
for(int i=0;i<mDesc.mItems.Size(); i++)
{
int width = mDesc.mItems[i].GetWidth();
if (width > 0)
{
mDesc.mItems[i].SetX(center);
}
}
}
// notify all items that the menu was just created.
for(int i=0;i<mDesc.mItems.Size(); i++)
{
mDesc.mItems[i].OnMenuCreated();
}
}
//=============================================================================
//
//
//
//=============================================================================
ListMenuItem GetItem(Name name)
{
for(int i = 0; i < mDesc.mItems.Size(); i++)
{
Name nm = mDesc.mItems[i].GetAction();
if (nm == name) return mDesc.mItems[i];
}
return NULL;
}
//=============================================================================
//
//
//
//=============================================================================
override bool OnUIEvent(UIEvent ev)
{
if (ev.Type == UIEvent.Type_KeyDown && ev.KeyChar > 0)
{
// tolower
int ch = ev.KeyChar;
ch = ch >= 65 && ch < 91 ? ch + 32 : ch;
for(int i = mDesc.mSelectedItem + 1; i < mDesc.mItems.Size(); i++)
{
if (mDesc.mitems[i].Selectable() && mDesc.mItems[i].CheckHotkey(ch))
{
mDesc.mSelectedItem = i;
MenuSound("menu/cursor");
return true;
}
}
for(int i = 0; i < mDesc.mSelectedItem; i++)
{
if (mDesc.mitems[i].Selectable() && mDesc.mItems[i].CheckHotkey(ch))
{
mDesc.mSelectedItem = i;
MenuSound("menu/cursor");
return true;
}
}
}
return Super.OnUIEvent(ev);
}
//=============================================================================
//
//
//
//=============================================================================
override bool MenuEvent (int mkey, bool fromcontroller)
{
int oldSelect = mDesc.mSelectedItem;
int startedAt = max(0, mDesc.mSelectedItem);
switch (mkey)
{
case MKEY_Up:
do
{
if (--mDesc.mSelectedItem < 0) mDesc.mSelectedItem = mDesc.mItems.Size()-1;
}
while (!mDesc.mItems[mDesc.mSelectedItem].Selectable() && mDesc.mSelectedItem != startedAt);
if (mDesc.mSelectedItem == startedAt) mDesc.mSelectedItem = oldSelect;
MenuSound("menu/cursor");
return true;
case MKEY_Down:
do
{
if (++mDesc.mSelectedItem >= mDesc.mItems.Size()) mDesc.mSelectedItem = 0;
}
while (!mDesc.mItems[mDesc.mSelectedItem].Selectable() && mDesc.mSelectedItem != startedAt);
if (mDesc.mSelectedItem == startedAt) mDesc.mSelectedItem = oldSelect;
MenuSound("menu/cursor");
return true;
case MKEY_Enter:
if (mDesc.mSelectedItem >= 0 && mDesc.mItems[mDesc.mSelectedItem].Activate())
{
MenuSound("menu/advance");
}
return true;
default:
return Super.MenuEvent(mkey, fromcontroller);
}
}
//=============================================================================
//
//
//
//=============================================================================
override bool MouseEvent(int type, int x, int y)
{
int sel = -1;
int w = mDesc.DisplayWidth();
double sx, sy;
if (w == ListMenuDescriptor.CleanScale)
{
// convert x/y from screen to virtual coordinates, according to CleanX/Yfac use in DrawTexture
x = ((x - (screen.GetWidth() / 2)) / CleanXfac) + 160;
y = ((y - (screen.GetHeight() / 2)) / CleanYfac) + 100;
}
else
{
// for fullscreen scale, transform coordinates so that for the given rect the coordinates are within (0, 0, w, h)
int h = mDesc.DisplayHeight();
double fx, fy, fw, fh;
[fx, fy, fw, fh] = Screen.GetFullscreenRect(w, h, FSMode_ScaleToFit43);
x = int((x - fx) * w / fw);
y = int((y - fy) * h / fh);
}
if (mFocusControl != NULL)
{
mFocusControl.MouseEvent(type, x, y);
return true;
}
else
{
if ((mDesc.mWLeft <= 0 || x > mDesc.mWLeft) &&
(mDesc.mWRight <= 0 || x < mDesc.mWRight))
{
for(int i=0;i<mDesc.mItems.Size(); i++)
{
if (mDesc.mItems[i].Selectable() && mDesc.mItems[i].CheckCoordinate(x, y))
{
if (i != mDesc.mSelectedItem)
{
//MenuSound("menu/cursor");
}
mDesc.mSelectedItem = i;
mDesc.mItems[i].MouseEvent(type, x, y);
return true;
}
}
}
}
mDesc.mSelectedItem = -1;
return Super.MouseEvent(type, x, y);
}
//=============================================================================
//
//
//
//=============================================================================
override void Ticker ()
{
Super.Ticker();
for(int i=0;i<mDesc.mItems.Size(); i++)
{
mDesc.mItems[i].Ticker();
}
}
//=============================================================================
//
//
//
//=============================================================================
override void Drawer ()
{
for(int i=0;i<mDesc.mItems.Size(); i++)
{
if (mDesc.mItems[i].mEnabled) mDesc.mItems[i].Draw(mDesc.mSelectedItem == i, mDesc);
}
if (mDesc.mSelectedItem >= 0 && mDesc.mSelectedItem < mDesc.mItems.Size())
{
if (!menuDelegate.DrawSelector(mDesc))
mDesc.mItems[mDesc.mSelectedItem].DrawSelector(mDesc.mSelectOfsX, mDesc.mSelectOfsY, mDesc.mSelector, mDesc);
}
Super.Drawer();
}
//=============================================================================
//
//
//
//=============================================================================
override void SetFocus(MenuItemBase fc)
{
mFocusControl = fc;
}
override bool CheckFocus(MenuItemBase fc)
{
return mFocusControl == fc;
}
override void ReleaseFocus()
{
mFocusControl = NULL;
}
//=============================================================================
//
//
//
//=============================================================================
void ChangeLineSpacing(int newspace)
{
double top = -32767;
for (int i = 0; i < mDesc.mItems.Size(); i++)
{
let selitem = ListMenuItemSelectable(mDesc.mItems[i]);
if (selitem)
{
let y = mDesc.mItems[i].GetY();
if (top == -32767)
{
top = y;
}
else
{
let newy = top + (y - top) / mDesc.mLineSpacing * newspace;
mDesc.mItems[i].SetY(newy);
}
}
}
mDesc.mLineSpacing = newspace;
}
}