nuclide/src/vgui/ui_listbox.qc

147 lines
3.9 KiB
Plaintext

/*
* Copyright (c) 2016-2022 Vera Visions LLC.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
class VGUIListBox:VGUIWidget
{
public:
void VGUIListBox(void);
nonvirtual void SetOffset(int);
nonvirtual void AddItem(string);
nonvirtual void SetItemCount(int);
nonvirtual string GetItem(int);
nonvirtual int GetSelected(void);
virtual void Draw(void);
virtual bool Input(float, float, float, float);
virtual void Spawned(void);
private:
vector m_vecSize;
string m_strTitle;
string *m_strItems;
int m_iItemCount;
int m_iSelected;
int m_iDrawOffset;
};
void VGUIListBox::VGUIListBox(void)
{
m_iSelected = -1;
}
void VGUIListBox::Spawned(void)
{
SetSize([96,16]);
}
void VGUIListBox::SetItemCount (int iCount)
{
if (!m_iItemCount) {
NSLog("VGUIListBox: Initialized with a maximum of %i entries", iCount);
m_iItemCount = iCount;
m_strItems = memalloc(iCount * sizeof(string));
}
}
void VGUIListBox::SetOffset (int iOffset)
{
int iMaxDisplay = bound(0, m_iItemCount, floor(m_vecSize[1] / 20));
m_iDrawOffset = bound(0, iOffset, m_iItemCount - iMaxDisplay);
}
string VGUIListBox::GetItem (int iIndex)
{
return m_strItems[iIndex];
}
int VGUIListBox::GetSelected(void)
{
return m_iSelected;
}
void VGUIListBox::AddItem (string strItem)
{
if (!m_iItemCount) {
dprint("VGUIListBox: Can't add item to empty list!\n");
return;
}
for (int i = 0; i < m_iItemCount; i++) {
if (!m_strItems[i]) {
m_strItems[i] = strItem;
dprint("VGUIListBox: Item added\n");
break;
}
}
}
void VGUIListBox::Draw(void)
{
int iMaxDisplay;
if (!m_iItemCount) {
return;
}
drawfill(m_parent.m_vecOrigin + m_vecOrigin, m_vecSize, [0,0,0], 0.5f);
drawfill(m_parent.m_vecOrigin + m_vecOrigin, [m_vecSize[0], 1], [0,0,0], 0.5f);
drawfill(m_parent.m_vecOrigin + m_vecOrigin + [0, m_vecSize[1] - 1], [m_vecSize[0], 1], [1,1,1], 0.5f);
drawfill(m_parent.m_vecOrigin + m_vecOrigin + [0, 1], [1, m_vecSize[1] - 2], [0,0,0], 0.5f);
drawfill(m_parent.m_vecOrigin + m_vecOrigin + [m_vecSize[0] - 1, 1], [1, m_vecSize[1] - 2], [1,1,1], 0.5f);
vector vecOffset = [8,8];
iMaxDisplay = bound(0, m_iItemCount, floor(m_vecSize[1] / 20));
for (int i = m_iDrawOffset; i < iMaxDisplay + m_iDrawOffset; i++) {
if (!m_strItems[i]) {
break;
}
if (m_iSelected == i) {
drawfill(m_parent.m_vecOrigin + m_vecOrigin + vecOffset + [-7,-3], [m_vecSize[0] - 2, 18], [1,1,1], 0.5f);
}
Font_DrawText(m_parent.m_vecOrigin + m_vecOrigin + vecOffset, m_strItems[i], g_fntDefault);
vecOffset[1] += 20;
}
}
bool VGUIListBox::Input (float flEVType, float flKey, float flChar, float flDevID)
{
bool ret = false;
int iMaxDisplay;
iMaxDisplay = bound(0, m_iItemCount, floor(m_vecSize[1] / 20));
vector vecOffset = [8,8];
if (flEVType == IE_KEYDOWN) {
if (flKey == K_MOUSE1) {
for (int i = m_iDrawOffset; i < iMaxDisplay + m_iDrawOffset; i++) {
if (Util_MouseAbove(g_vecMousePos, m_parent.m_vecOrigin + m_vecOrigin + vecOffset, [m_vecSize[0] - 16, 20])) {
m_iSelected = i;
ret = true;
}
vecOffset[1] += 20;
}
} else if (flKey == K_MWHEELUP) {
SetOffset(--m_iDrawOffset);
ret = true;
} else if (flKey == K_MWHEELDOWN) {
SetOffset(++m_iDrawOffset);
ret = true;
}
}
return (ret);
}