gzdoom/src/menu/listmenu.cpp
2017-02-12 14:04:48 +01:00

281 lines
7.8 KiB
C++

/*
** listmenu.cpp
** A simple menu consisting of a list of items
**
**---------------------------------------------------------------------------
** Copyright 2010 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.
**---------------------------------------------------------------------------
**
*/
#include "v_video.h"
#include "v_font.h"
#include "cmdlib.h"
#include "gstrings.h"
#include "g_level.h"
#include "gi.h"
#include "d_gui.h"
#include "d_event.h"
#include "menu/menu.h"
IMPLEMENT_CLASS(DListMenu, false, false)
IMPLEMENT_POINTERS_START(DListMenu)
IMPLEMENT_POINTER(mFocusControl)
IMPLEMENT_POINTERS_END
//=============================================================================
//
//
//
//=============================================================================
DListMenu::DListMenu(DMenu *parent, DListMenuDescriptor *desc)
: DMenu(parent)
{
mDesc = NULL;
if (desc != NULL) Init(parent, desc);
}
//=============================================================================
//
//
//
//=============================================================================
void DListMenu::Init(DMenu *parent, DListMenuDescriptor *desc)
{
mParentMenu = parent;
GC::WriteBarrier(this, parent);
mDesc = desc;
if (desc->mCenter)
{
int center = 160;
for(unsigned i=0;i<mDesc->mItems.Size(); i++)
{
int xpos = mDesc->mItems[i]->GetX();
int width = mDesc->mItems[i]->GetWidth();
int curx = mDesc->mSelectOfsX;
if (width > 0 && mDesc->mItems[i]->Selectable())
{
int left = 160 - (width - curx) / 2 - curx;
if (left < center) center = left;
}
}
for(unsigned i=0;i<mDesc->mItems.Size(); i++)
{
int width = mDesc->mItems[i]->GetWidth();
if (width > 0)
{
mDesc->mItems[i]->SetX(center);
}
}
}
}
//=============================================================================
//
//
//
//=============================================================================
DMenuItemBase *DListMenu::GetItem(FName name)
{
for(unsigned i=0;i<mDesc->mItems.Size(); i++)
{
FName nm = mDesc->mItems[i]->GetAction(NULL);
if (nm == name) return mDesc->mItems[i];
}
return NULL;
}
//=============================================================================
//
//
//
//=============================================================================
bool DListMenu::Responder (event_t *ev)
{
if (ev->type == EV_GUI_Event)
{
if (ev->subtype == EV_GUI_KeyDown)
{
int ch = tolower (ev->data1);
for(unsigned i = mDesc->mSelectedItem + 1; i < mDesc->mItems.Size(); i++)
{
if (mDesc->mItems[i]->CheckHotkey(ch))
{
mDesc->mSelectedItem = i;
S_Sound(CHAN_VOICE | CHAN_UI, "menu/cursor", snd_menuvolume, ATTN_NONE);
return true;
}
}
for(int i = 0; i < mDesc->mSelectedItem; i++)
{
if (mDesc->mItems[i]->CheckHotkey(ch))
{
mDesc->mSelectedItem = i;
S_Sound(CHAN_VOICE | CHAN_UI, "menu/cursor", snd_menuvolume, ATTN_NONE);
return true;
}
}
}
}
return Super::Responder(ev);
}
//=============================================================================
//
//
//
//=============================================================================
bool DListMenu::MenuEvent (int mkey, bool fromcontroller)
{
int oldSelect = mDesc->mSelectedItem;
int startedAt = mDesc->mSelectedItem;
if (startedAt < 0) startedAt = 0;
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;
S_Sound (CHAN_VOICE | CHAN_UI, "menu/cursor", snd_menuvolume, ATTN_NONE);
return true;
case MKEY_Down:
do
{
if (++mDesc->mSelectedItem >= (int)mDesc->mItems.Size()) mDesc->mSelectedItem = 0;
}
while (!mDesc->mItems[mDesc->mSelectedItem]->Selectable() && mDesc->mSelectedItem != startedAt);
if (mDesc->mSelectedItem == startedAt) mDesc->mSelectedItem = oldSelect;
S_Sound (CHAN_VOICE | CHAN_UI, "menu/cursor", snd_menuvolume, ATTN_NONE);
return true;
case MKEY_Enter:
if (mDesc->mSelectedItem >= 0 && mDesc->mItems[mDesc->mSelectedItem]->Activate())
{
S_Sound (CHAN_VOICE | CHAN_UI, "menu/choose", snd_menuvolume, ATTN_NONE);
}
return true;
default:
return Super::MenuEvent(mkey, fromcontroller);
}
}
//=============================================================================
//
//
//
//=============================================================================
bool DListMenu::MouseEvent(int type, int x, int y)
{
int sel = -1;
// 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;
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(unsigned i=0;i<mDesc->mItems.Size(); i++)
{
if (mDesc->mItems[i]->CheckCoordinate(x, y))
{
if ((int)i != mDesc->mSelectedItem)
{
//S_Sound (CHAN_VOICE | CHAN_UI, "menu/cursor", snd_menuvolume, ATTN_NONE);
}
mDesc->mSelectedItem = i;
mDesc->mItems[i]->MouseEvent(type, x, y);
return true;
}
}
}
}
mDesc->mSelectedItem = -1;
return Super::MouseEvent(type, x, y);
}
//=============================================================================
//
//
//
//=============================================================================
void DListMenu::Ticker ()
{
Super::Ticker();
for(unsigned i=0;i<mDesc->mItems.Size(); i++)
{
mDesc->mItems[i]->Ticker();
}
}
//=============================================================================
//
//
//
//=============================================================================
void DListMenu::Drawer ()
{
for(unsigned i=0;i<mDesc->mItems.Size(); i++)
{
if (mDesc->mItems[i]->mEnabled) mDesc->mItems[i]->Drawer(mDesc->mSelectedItem == (int)i);
}
if (mDesc->mSelectedItem >= 0 && mDesc->mSelectedItem < (int)mDesc->mItems.Size())
mDesc->mItems[mDesc->mSelectedItem]->DrawSelector(mDesc->mSelectOfsX, mDesc->mSelectOfsY, mDesc->mSelector);
Super::Drawer();
}
//=============================================================================
//
// base class for menu items
//
//=============================================================================
IMPLEMENT_CLASS(DMenuItemBase, false, false)