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115 lines
2.3 KiB
C++
115 lines
2.3 KiB
C++
//========= Copyright © 1996-2001, Valve LLC, All rights reserved. ============
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================
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#ifndef VOICE_LISTBOX_H
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#define VOICE_LISTBOX_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "VGUI_Panel.h"
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#include "VGUI_IntChangeSignal.h"
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#include "vgui_slider2.h"
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#include "vgui_scrollbar2.h"
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namespace vgui
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{
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// Listbox class used by voice code. Based off of vgui's list panel but with some modifications:
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// - This listbox clips its child items to its rectangle.
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// - You can access things like the scrollbar and find out the item width.
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// - The scrollbar scrolls one element at a time and the range is correct.
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// Note: this listbox does not provide notification when items are
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class CListBox : public Panel
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{
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public:
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CListBox();
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~CListBox();
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void Init();
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void Term();
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// Add an item to the listbox. This automatically sets the item's parent to the listbox
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// and resizes the item's width to fit within the listbox.
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void AddItem(Panel *pPanel);
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// Get the number of items currently in the listbox.
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int GetNumItems();
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// Get the width that listbox items will be set to (this changes if you resize the listbox).
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int GetItemWidth();
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// Get/set the scrollbar position (position says which element is at the top of the listbox).
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int GetScrollPos();
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void SetScrollPos(int pos);
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// sets the last item the listbox should scroll to
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// scroll to GetNumItems() if not set
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void SetScrollRange(int maxScroll);
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// returns the maximum value the scrollbar can scroll to
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int GetScrollMax();
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// vgui overrides.
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public:
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virtual void setPos(int x, int y);
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virtual void setSize(int wide,int tall);
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virtual void setPixelScroll(int value);
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virtual void paintBackground();
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protected:
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class LBItem
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{
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public:
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Panel *m_pPanel;
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LBItem *m_pPrev, *m_pNext;
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};
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class ListBoxSignal : public IntChangeSignal
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{
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public:
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void intChanged(int value,Panel* panel)
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{
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m_pListBox->setPixelScroll(-value);
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}
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vgui::CListBox *m_pListBox;
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};
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protected:
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void InternalLayout();
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protected:
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// All the items..
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LBItem m_Items;
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Panel m_ItemsPanel;
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int m_ItemOffset; // where we're scrolled to
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Slider2 m_Slider;
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ScrollBar2 m_ScrollBar;
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ListBoxSignal m_Signal;
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int m_iScrollMax;
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};
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}
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#endif // VOICE_LISTBOX_H
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