irrlicht/source/Irrlicht/CGUITable.cpp

785 lines
18 KiB
C++

// Copyright (C) 2002-2007 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
// 07.10.2005 - Multicolor-Listbox added by A. Buschhueter (Acki)
// A_Buschhueter@gmx.de
#include "CGUITable.h"
#ifdef _IRR_COMPILE_WITH_GUI_
#include "IGUISkin.h"
#include "IGUIEnvironment.h"
#include "IVideoDriver.h"
#include "IGUIFont.h"
#include "CGUIScrollBar.h"
#include "os.h"
#define ARROW_PAD 15
namespace irr
{
namespace gui
{
//! constructor
CGUITable::CGUITable(IGUIEnvironment* environment, IGUIElement* parent,
s32 id, core::rect<s32> rectangle, bool clip,
bool drawBack, bool moveOverSelect)
: IGUITable(environment, parent, id, rectangle), Font(0), ScrollBar(0),
Clip(clip), DrawBack(drawBack), MoveOverSelect(moveOverSelect),
Selecting(false), ItemHeight(0), TotalItemHeight(0), Selected(-1),
CellHeightPadding(2), CellWidthPadding(5), ActiveTab(-1),
CurrentOrdering(EGOM_ASCENDING)
{
#ifdef _DEBUG
setDebugName("CGUITable");
#endif
IGUISkin* skin = Environment->getSkin();
s32 s = skin->getSize(EGDS_SCROLLBAR_SIZE);
ScrollBar = Environment->addScrollBar(false,
core::rect<s32>(RelativeRect.getWidth() - s, 0, RelativeRect.getWidth(), RelativeRect.getHeight()),
this, -1);
if (ScrollBar)
{
ScrollBar->setPos(0);
ScrollBar->setNotClipped(clip);
ScrollBar->setAlignment(EGUIA_LOWERRIGHT, EGUIA_LOWERRIGHT, EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT);
ScrollBar->setSubElement(true);
ScrollBar->grab();
}
recalculate();
}
//! destructor
CGUITable::~CGUITable()
{
if (ScrollBar)
ScrollBar->drop();
if (Font)
Font->drop();
}
void CGUITable::addColumn(const wchar_t* caption, s32 id)
{
IGUISkin* skin = Environment->getSkin();
if (!skin)
return;
Column tabHeader;
tabHeader.name = caption;
tabHeader.width = Font->getDimension(caption).Width + (CellWidthPadding * 2) + ARROW_PAD;
tabHeader.TextColor = skin->getColor(EGDC_BUTTON_TEXT);
tabHeader.useCustomOrdering = false;
Columns.push_back(tabHeader);
if (ActiveTab == -1)
ActiveTab = 0;
}
s32 CGUITable::getColumnCount() const
{
return Columns.size();
}
s32 CGUITable::getRowCount() const
{
return Rows.size();
}
bool CGUITable::setActiveColumn(s32 idx)
{
if (idx < 0 || idx >= (s32)Columns.size())
return false;
bool changed = (ActiveTab != idx);
ActiveTab = idx;
CurrentOrdering = EGOM_ASCENDING;
if ( !Columns[idx].useCustomOrdering )
orderRows();
if (changed)
{
SEvent event;
event.EventType = EET_GUI_EVENT;
event.GUIEvent.Caller = this;
event.GUIEvent.EventType = EGET_TABLE_HEADER_CHANGED;
Parent->OnEvent(event);
}
return true;
}
s32 CGUITable::getActiveColumn() const
{
return ActiveTab;
}
EGUI_ORDERING_MODE CGUITable::getActiveColumnOrdering() const
{
return CurrentOrdering;
}
void CGUITable::setColumnWidth(u32 columnIndex, u32 width)
{
if ( columnIndex < Columns.size() )
{
if ( width < ( Font->getDimension(Columns[columnIndex].name.c_str() ).Width + (u32(CellWidthPadding) * 2) ) )
width = Font->getDimension(Columns[columnIndex].name.c_str() ).Width + (CellWidthPadding * 2) + ARROW_PAD;
Columns[columnIndex].width = width;
}
}
void CGUITable::addRow(u32 rowIndex)
{
if (!( rowIndex < (Rows.size() + 1) ) )
return;
Row row;
if ( rowIndex == Rows.size() )
Rows.push_back(row);
else
Rows.insert(row, rowIndex);
for ( u32 i = 0 ; i < Columns.size() ; ++i )
{
Cell cell;
cell.data = 0;
Rows[rowIndex].Items.push_back(cell);
}
recalculate();
}
void CGUITable::removeRow(u32 rowIndex)
{
if (!( rowIndex < Rows.size() ) )
return;
Rows.erase( rowIndex );
if ( !(Selected < s32(Rows.size())) )
Selected = Rows.size() - 1;
recalculate();
}
//! adds an list item, returns id of item
void CGUITable::setCellText(u32 rowIndex, u32 columnIndex, const wchar_t* text)
{
if ( rowIndex < (Rows.size() + 1) && columnIndex < Columns.size() )
{
Rows[rowIndex].Items[columnIndex].text = text;
breakText( Rows[rowIndex].Items[columnIndex].text, Columns[columnIndex].width );
IGUISkin* skin = Environment->getSkin();
if ( skin )
Rows[rowIndex].Items[columnIndex].color = skin->getColor(EGDC_BUTTON_TEXT);
}
}
void CGUITable::setCellText(u32 rowIndex, u32 columnIndex, const wchar_t* text, video::SColor color)
{
if ( rowIndex < (Rows.size() + 1) && columnIndex < Columns.size() )
{
Rows[rowIndex].Items[columnIndex].text = text;
breakText( Rows[rowIndex].Items[columnIndex].text, Columns[columnIndex].width );
Rows[rowIndex].Items[columnIndex].color = color;
}
}
void CGUITable::setCellColor(u32 rowIndex, u32 columnIndex, video::SColor color)
{
if ( rowIndex < (Rows.size() + 1) && columnIndex < Columns.size() )
{
Rows[rowIndex].Items[columnIndex].color = color;
}
}
void CGUITable::setCellData(u32 rowIndex, u32 columnIndex, void *data)
{
if ( rowIndex < (Rows.size() + 1) && columnIndex < Columns.size() )
{
Rows[rowIndex].Items[columnIndex].data = data;
}
}
const wchar_t* CGUITable::getCellText(u32 rowIndex, u32 columnIndex ) const
{
if ( rowIndex < (Rows.size() + 1) && columnIndex < Columns.size() )
{
return Rows[rowIndex].Items[columnIndex].text.c_str();
}
return 0;
}
void* CGUITable::getCellData(u32 rowIndex, u32 columnIndex ) const
{
if ( rowIndex < (Rows.size() + 1) && columnIndex < Columns.size() )
{
return Rows[rowIndex].Items[columnIndex].data;
}
return 0;
}
//! clears the list
void CGUITable::clear()
{
Rows.clear();
Columns.clear();
if (ScrollBar)
ScrollBar->setPos(0);
recalculate();
}
void CGUITable::clearRows()
{
Rows.clear();
if (ScrollBar)
ScrollBar->setPos(0);
recalculate();
}
s32 CGUITable::getSelected() const
{
return Selected;
}
void CGUITable::recalculate()
{
IGUISkin* skin = Environment->getSkin();
if (Font != skin->getFont())
{
if (Font)
Font->drop();
Font = skin->getFont();
ItemHeight = 0;
if(Font)
{
ItemHeight = Font->getDimension(L"A").Height + (CellHeightPadding * 2);
Font->grab();
}
}
ScrollBar->setMax((ItemHeight * Rows.size()) - AbsoluteRect.getHeight() + ItemHeight);
}
//! called if an event happened.
bool CGUITable::OnEvent(const SEvent& event)
{
switch(event.EventType)
{
case EET_GUI_EVENT:
switch(event.GUIEvent.EventType)
{
case gui::EGET_SCROLL_BAR_CHANGED:
if (event.GUIEvent.Caller == ScrollBar)
{
const s32 pos = ((gui::IGUIScrollBar*)event.GUIEvent.Caller)->getPos();
// TODO: Scrollbar update?
return true;
}
break;
case gui::EGET_ELEMENT_FOCUS_LOST:
{
Selecting = false;
}
break;
default:
break;
}
break;
case EET_MOUSE_INPUT_EVENT:
{
core::position2d<s32> p(event.MouseInput.X, event.MouseInput.Y);
switch(event.MouseInput.Event)
{
case EMIE_MOUSE_WHEEL:
ScrollBar->setPos(ScrollBar->getPos() + (s32)event.MouseInput.Wheel*-10);
return true;
case EMIE_LMOUSE_PRESSED_DOWN:
if (Environment->hasFocus(this) &&
ScrollBar->getAbsolutePosition().isPointInside(p) &&
ScrollBar->OnEvent(event))
return true;
if ( selectColumnHeader( event.MouseInput.X, event.MouseInput.Y ) )
return true;
Selecting = true;
Environment->setFocus(this);
return true;
case EMIE_LMOUSE_LEFT_UP:
if (Environment->hasFocus(this) &&
ScrollBar->getAbsolutePosition().isPointInside(p) &&
ScrollBar->OnEvent(event))
{
return true;
}
Selecting = false;
Environment->removeFocus(this);
selectNew(event.MouseInput.Y);
return true;
case EMIE_MOUSE_MOVED:
if (Selecting || MoveOverSelect)
{
if (getAbsolutePosition().isPointInside(p))
{
selectNew(event.MouseInput.Y);
return true;
}
}
break;
default:
break;
}
}
break;
default:
break;
}
return Parent ? Parent->OnEvent(event) : false;
}
void CGUITable::setColumnCustomOrdering(u32 columnIndex, bool state)
{
if ( columnIndex < Columns.size() )
Columns[columnIndex].useCustomOrdering = state;
}
void CGUITable::swapRows(u32 rowIndexA, u32 rowIndexB)
{
if ( rowIndexA >= Rows.size() )
return;
if ( rowIndexB >= Rows.size() )
return;
Row swap = Rows[rowIndexA];
Rows[rowIndexA] = Rows[rowIndexB];
Rows[rowIndexB] = swap;
if ( Selected == s32(rowIndexA) )
Selected = rowIndexB;
else if( Selected == s32(rowIndexB) )
Selected = rowIndexA;
}
bool CGUITable::selectColumnHeader(s32 xpos, s32 ypos)
{
if ( ypos > ( AbsoluteRect.UpperLeftCorner.Y + ItemHeight ) )
return false;
core::rect<s32> frameRect(AbsoluteRect);
s32 pos = frameRect.UpperLeftCorner.X;;
u32 colWidth;
for ( u32 i = 0 ; i < Columns.size() ; ++i )
{
colWidth = Columns[i].width;
if ( xpos >= pos && xpos < ( pos + s32(colWidth) ) )
{
if ( ActiveTab == s32(i) )
{
if ( CurrentOrdering == EGOM_ASCENDING )
CurrentOrdering = EGOM_DESCENDING;
else
CurrentOrdering = EGOM_ASCENDING;
}
else
{
ActiveTab = i;
CurrentOrdering = EGOM_ASCENDING;
}
if ( !Columns[i].useCustomOrdering )
orderRows();
else
{
if (Parent)
{
SEvent event;
event.EventType = EET_GUI_EVENT;
event.GUIEvent.Caller = this;
event.GUIEvent.EventType = EGET_TABLE_HEADER_CHANGED;
Parent->OnEvent(event);
}
}
break;
}
pos += colWidth;
}
return false;
}
void CGUITable::orderRows()
{
Row swap;
s32 columnIndex = getActiveColumn();
if ( CurrentOrdering == EGOM_ASCENDING )
{
for ( s32 i = 0 ; i < s32(Rows.size()) - 1 ; ++i )
{
for ( s32 j = 0 ; j < s32(Rows.size()) - i - 1 ; ++j )
{
if ( Rows[j+1].Items[columnIndex].text < Rows[j].Items[columnIndex].text )
{
swap = Rows[j];
Rows[j] = Rows[j+1];
Rows[j+1] = swap;
if ( Selected == j )
Selected = j+1;
else if( Selected == j+1 )
Selected = j;
}
}
}
}
else
{
for ( s32 i = 0 ; i < s32(Rows.size()) - 1 ; ++i )
{
for ( s32 j = 0 ; j < s32(Rows.size()) - i - 1 ; ++j )
{
if ( Rows[j].Items[columnIndex].text < Rows[j+1].Items[columnIndex].text)
{
swap = Rows[j];
Rows[j] = Rows[j+1];
Rows[j+1] = swap;
if ( Selected == j )
Selected = j+1;
else if( Selected == j+1 )
Selected = j;
}
}
}
}
}
void CGUITable::selectNew(s32 ypos, bool onlyHover)
{
IGUISkin* skin = Environment->getSkin();
if (!skin)
return;
s32 oldSelected = Selected;
if ( ypos < ( AbsoluteRect.UpperLeftCorner.Y + ItemHeight ) )
return;
// find new selected item.
if (ItemHeight!=0)
Selected = ((ypos - AbsoluteRect.UpperLeftCorner.Y - ItemHeight - 1) + ScrollBar->getPos()) / ItemHeight;
if (Selected >= (s32)Rows.size())
Selected = Rows.size() - 1;
else if (Selected<0)
Selected = 0;
// post the news
if (Parent && !onlyHover)
{
SEvent event;
event.EventType = EET_GUI_EVENT;
event.GUIEvent.Caller = this;
event.GUIEvent.EventType = (Selected != oldSelected) ? EGET_TABLE_CHANGED : EGET_TABLE_SELECTED_AGAIN;
Parent->OnEvent(event);
}
}
//! draws the element and its children
void CGUITable::draw()
{
if (!IsVisible)
return;
irr::video::IVideoDriver* driver = Environment->getVideoDriver();
core::rect<s32> frameRect(AbsoluteRect);
core::rect<s32> columnSeparator(AbsoluteRect);
IGUISkin* skin = Environment->getSkin();
if (!skin)
return;
IGUIFont* font = skin->getFont();
if (!font)
return;
s32 headerFinalPosition = frameRect.UpperLeftCorner.Y + ItemHeight;
frameRect = AbsoluteRect;
frameRect.UpperLeftCorner.X += 1;
frameRect.UpperLeftCorner.Y = headerFinalPosition;
frameRect.LowerRightCorner.X = AbsoluteRect.LowerRightCorner.X - skin->getSize(EGDS_SCROLLBAR_SIZE);
frameRect.LowerRightCorner.Y = headerFinalPosition + ItemHeight;
frameRect.UpperLeftCorner.Y -= ScrollBar->getPos();
frameRect.LowerRightCorner.Y -= ScrollBar->getPos();
core::rect<s32> clientClip(AbsoluteRect);
clientClip.UpperLeftCorner.Y = headerFinalPosition + 1;
clientClip.UpperLeftCorner.X += 1;
clientClip.LowerRightCorner.X = AbsoluteRect.LowerRightCorner.X - skin->getSize(EGDS_SCROLLBAR_SIZE);
clientClip.LowerRightCorner.Y -= 1;
u32 pos;
for ( u32 i = 0 ; i < Rows.size() ; ++i )
{
if (frameRect.LowerRightCorner.Y >= AbsoluteRect.UpperLeftCorner.Y &&
frameRect.UpperLeftCorner.Y <= AbsoluteRect.LowerRightCorner.Y)
{
core::rect<s32> textRect = frameRect;
textRect.UpperLeftCorner.Y = textRect.LowerRightCorner.Y - 1;
driver->draw2DRectangle(skin->getColor(EGDC_3D_SHADOW), textRect, &clientClip);
textRect = frameRect;
pos = frameRect.UpperLeftCorner.X;
if ((s32)i == Selected)
driver->draw2DRectangle(skin->getColor(EGDC_HIGH_LIGHT), frameRect, &clientClip);
for ( u32 j = 0 ; j < Columns.size() ; ++j )
{
textRect.UpperLeftCorner.X = pos + CellWidthPadding;
textRect.LowerRightCorner.X = pos + Columns[j].width - CellWidthPadding;
// s32 test = font->getDimension(Rows[i].Items[j].text.c_str()).Width;
if ((s32)i == Selected)
{
font->draw(Rows[i].Items[j].text.c_str(), textRect, skin->getColor(EGDC_HIGH_LIGHT_TEXT), false, true, &clientClip);
}
else
{
font->draw(Rows[i].Items[j].text.c_str(), textRect, Rows[i].Items[j].color, false, true, &clientClip);
}
pos += Columns[j].width;
}
}
frameRect.UpperLeftCorner.Y += ItemHeight;
frameRect.LowerRightCorner.Y += ItemHeight;
}
frameRect = AbsoluteRect;
columnSeparator.UpperLeftCorner.Y = headerFinalPosition;
core::rect<s32>* clipRect = 0;
if (Clip)
clipRect = &AbsoluteClippingRect;
const wchar_t* text = 0;
pos = frameRect.UpperLeftCorner.X;
u32 colWidth;
skin->draw3DSunkenPane(this, skin->getColor(EGDC_3D_HIGH_LIGHT), true, DrawBack, frameRect, clipRect);
for (u32 i = 0 ; i < Columns.size() ; ++i )
{
text = Columns[i].name.c_str();
colWidth = Columns[i].width;
core::dimension2d<s32 > dim = font->getDimension(text);
core::rect<s32> columnrect(pos, frameRect.UpperLeftCorner.Y, pos + colWidth, headerFinalPosition);
skin->draw3DButtonPaneStandard(this, columnrect, &AbsoluteClippingRect);
columnSeparator.UpperLeftCorner.X = columnrect.LowerRightCorner.X;
columnSeparator.LowerRightCorner.X = columnrect.LowerRightCorner.X + 1;
driver->draw2DRectangle(skin->getColor(EGDC_3D_SHADOW), columnSeparator, &AbsoluteClippingRect);
columnrect.UpperLeftCorner.X += CellWidthPadding;
font->draw(text, columnrect, skin->getColor(EGDC_BUTTON_TEXT), false, true, &AbsoluteClippingRect);
if ( (s32)i == ActiveTab )
{
if ( CurrentOrdering == EGOM_ASCENDING )
{
columnrect.UpperLeftCorner.X = columnrect.LowerRightCorner.X - CellWidthPadding - ARROW_PAD / 2 + 2;
columnrect.UpperLeftCorner.Y += 7;
skin->drawIcon(this,EGDI_CURSOR_UP,columnrect.UpperLeftCorner);
}
else
{
columnrect.UpperLeftCorner.X = columnrect.LowerRightCorner.X - CellWidthPadding - ARROW_PAD / 2 + 2;
columnrect.UpperLeftCorner.Y += 7;
skin->drawIcon(this,EGDI_CURSOR_DOWN,columnrect.UpperLeftCorner);
}
}
pos += colWidth;
}
core::rect<s32> columnrect(pos, frameRect.UpperLeftCorner.Y, frameRect.LowerRightCorner.X - skin->getSize(EGDS_SCROLLBAR_SIZE), headerFinalPosition);
skin->draw3DButtonPaneStandard(this, columnrect, &AbsoluteClippingRect);
IGUIElement::draw();
}
void CGUITable::breakText(core::stringw &text, u32 cellWidth )
{
IGUISkin* skin = Environment->getSkin();
if (!skin)
return;
if (!Font)
return;
IGUIFont* font = skin->getFont();
if (!font)
return;
core::stringw line, lineDots;
wchar_t c[2];
c[1] = L'\0';
const u32 maxLength = cellWidth - (CellWidthPadding * 2);
const s32 maxLengthDots = cellWidth - (CellWidthPadding * 2) - font->getDimension(L"...").Width;
const u32 size = text.size();
u32 pos = 0;
u32 i;
for (i=0; i<size; ++i)
{
c[0] = text[i];
if (c[0] == L'\n')
break;
pos += font->getDimension( c ).Width;
if ( pos > maxLength )
break;
if ( font->getDimension( (line + c[0]).c_str() ).Width > maxLengthDots )
lineDots = line;
line += c[0];
}
if ( i < size )
text = lineDots + L"...";
else
text = line;
}
//! Writes attributes of the object.
//! Implement this to expose the attributes of your scene node animator for
//! scripting languages, editors, debuggers or xml serialization purposes.
void CGUITable::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
{
IGUIElement::serializeAttributes(out, options);
core::stringc tmp, tmp2;
out->addInt("Columns", Columns.size());
for (u32 i=0; i < Columns.size(); ++i)
{
tmp = "Column"; tmp += i; tmp += ".";
tmp2 = tmp + "Name";
out->addString(tmp2.c_str(), Columns[i].name.c_str());
tmp2 = tmp + "Width";
out->addInt(tmp2.c_str(), Columns[i].width);
tmp2 = tmp + "CustomOrdering";
out->addBool(tmp2.c_str(), Columns[i].useCustomOrdering);
}
}
//! Reads attributes of the object.
//! Implement this to set the attributes of your scene node animator for
//! scripting languages, editors, debuggers or xml deserialization purposes.
void CGUITable::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
{
// clear everything
clear();
IGUIElement::deserializeAttributes(in , options);
// add columns
core::stringc tmp, tmp2;
u32 count = in->getAttributeAsInt("Columns");
for (u32 i=0; i < count; ++i)
{
tmp = "Column"; tmp += i; tmp += ".";
tmp2 = tmp + "Name";
addColumn(in->getAttributeAsStringW(tmp2.c_str()).c_str());
tmp2 = tmp + "Width";
setColumnWidth(i, in->getAttributeAsInt(tmp2.c_str()));
tmp2 = tmp + "CustomOrdering";
setColumnCustomOrdering(i, in->getAttributeAsBool(tmp2.c_str()));
}
}
} // end namespace gui
} // end namespace irr
#endif // _IRR_COMPILE_WITH_GUI_