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tbarsmpl.cpp
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2002-04-08
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/////////////////////////////////////////////////////////////////////////////
// Name: generic/tbarsmpl.cpp
// Purpose: wxToolBarSimple
// Author: Julian Smart
// Modified by: VZ on 14.12.99 during wxToolBarSimple reorganization
// Created: 04/01/98
// RCS-ID: $Id: tbarsmpl.cpp,v 1.19 2002/04/08 10:50:14 JS Exp $
// Copyright: (c) Julian Smart and Markus Holzem
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#ifdef __GNUG__
#pragma implementation "tbarsmpl.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_TOOLBAR_SIMPLE
#ifndef WX_PRECOMP
#include "wx/settings.h"
#include "wx/window.h"
#include "wx/dcclient.h"
#include "wx/dcmemory.h"
#endif
#include "wx/tbarsmpl.h"
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxToolBarToolSimple : public wxToolBarToolBase
{
public:
wxToolBarToolSimple(wxToolBarSimple *tbar,
int id,
const wxString& label,
const wxBitmap& bmpNormal,
const wxBitmap& bmpDisabled,
wxItemKind kind,
wxObject *clientData,
const wxString& shortHelp,
const wxString& longHelp)
: wxToolBarToolBase(tbar, id, label, bmpNormal, bmpDisabled, kind,
clientData, shortHelp, longHelp)
{
}
wxToolBarToolSimple(wxToolBarSimple *tbar, wxControl *control)
: wxToolBarToolBase(tbar, control)
{
}
void SetSize(const wxSize& size)
{
m_width = size.x;
m_height = size.y;
}
wxCoord GetWidth() const { return m_width; }
wxCoord GetHeight() const { return m_height; }
wxCoord m_x;
wxCoord m_y;
wxCoord m_width;
wxCoord m_height;
};
// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxToolBarSimple, wxToolBarBase)
#if !wxUSE_TOOLBAR_NATIVE
#include "wx/toolbar.h"
IMPLEMENT_DYNAMIC_CLASS(wxToolBar, wxToolBarSimple)
#endif
BEGIN_EVENT_TABLE(wxToolBarSimple, wxToolBarBase)
EVT_SIZE(wxToolBarSimple::OnSize)
EVT_SCROLL(wxToolBarSimple::OnScroll)
EVT_PAINT(wxToolBarSimple::OnPaint)
EVT_KILL_FOCUS(wxToolBarSimple::OnKillFocus)
EVT_MOUSE_EVENTS(wxToolBarSimple::OnMouseEvent)
END_EVENT_TABLE()
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// tool bar tools creation
// ----------------------------------------------------------------------------
wxToolBarToolBase *wxToolBarSimple::CreateTool(int id,
const wxString& label,
const wxBitmap& bmpNormal,
const wxBitmap& bmpDisabled,
wxItemKind kind,
wxObject *clientData,
const wxString& shortHelp,
const wxString& longHelp)
{
return new wxToolBarToolSimple(this, id, label, bmpNormal, bmpDisabled,
kind, clientData, shortHelp, longHelp);
}
wxToolBarToolBase *wxToolBarSimple::CreateTool(wxControl *control)
{
return new wxToolBarToolSimple(this, control);
}
// ----------------------------------------------------------------------------
// wxToolBarSimple creation
// ----------------------------------------------------------------------------
void wxToolBarSimple::Init()
{
m_currentRowsOrColumns = 0;
m_lastX =
m_lastY = 0;
m_maxWidth =
m_maxHeight = 0;
m_pressedTool =
m_currentTool = -1;
m_xPos =
m_yPos = -1;
m_toolPacking = 1;
m_toolSeparation = 5;
m_defaultWidth = 16;
m_defaultHeight = 15;
m_xScrollPixelsPerLine = 1;
m_yScrollPixelsPerLine = 1;
m_xScrollingEnabled = FALSE;
m_yScrollingEnabled = FALSE;
m_xScrollPosition = 0;
m_yScrollPosition = 0;
m_xScrollLines = 0;
m_yScrollLines = 0;
m_xScrollLinesPerPage = 0;
m_yScrollLinesPerPage = 0;
}
wxToolBarToolBase *wxToolBarSimple::DoAddTool(int id,
const wxString& label,
const wxBitmap& bitmap,
const wxBitmap& bmpDisabled,
wxItemKind kind,
const wxString& shortHelp,
const wxString& longHelp,
wxObject *clientData,
wxCoord xPos,
wxCoord yPos)
{
// rememeber the position for DoInsertTool()
m_xPos = xPos;
m_yPos = yPos;
return wxToolBarBase::DoAddTool(id, label, bitmap, bmpDisabled, kind,
shortHelp, longHelp,
clientData, xPos, yPos);
}
bool wxToolBarSimple::DoInsertTool(size_t WXUNUSED(pos),
wxToolBarToolBase *toolBase)
{
wxToolBarToolSimple *tool = (wxToolBarToolSimple *)toolBase;
wxCHECK_MSG( !tool->IsControl(), FALSE,
_T("generic wxToolBarSimple doesn't support controls") );
tool->m_x = m_xPos;
if ( tool->m_x == -1 )
tool->m_x = m_xMargin;
tool->m_y = m_yPos;
if ( tool->m_y == -1 )
tool->m_y = m_yMargin;
tool->SetSize(GetToolSize());
if ( tool->IsButton() )
{
// Calculate reasonable max size in case Layout() not called
if ((tool->m_x + tool->GetNormalBitmap().GetWidth() + m_xMargin) > m_maxWidth)
m_maxWidth = (wxCoord)((tool->m_x + tool->GetWidth() + m_xMargin));
if ((tool->m_y + tool->GetNormalBitmap().GetHeight() + m_yMargin) > m_maxHeight)
m_maxHeight = (wxCoord)((tool->m_y + tool->GetHeight() + m_yMargin));
}
return TRUE;
}
bool wxToolBarSimple::DoDeleteTool(size_t WXUNUSED(pos),
wxToolBarToolBase *tool)
{
// VZ: didn't test whether it works, but why not...
tool->Detach();
Refresh();
return TRUE;
}
bool wxToolBarSimple::Create(wxWindow *parent,
wxWindowID id,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
if ( !wxWindow::Create(parent, id, pos, size, style, name) )
return FALSE;
// Set it to grey (or other 3D face colour)
SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
if ( GetWindowStyleFlag() & wxTB_VERTICAL )
{
m_lastX = 7;
m_lastY = 3;
m_maxRows = 32000; // a lot
m_maxCols = 1;
}
else
{
m_lastX = 3;
m_lastY = 7;
m_maxRows = 1;
m_maxCols = 32000; // a lot
}
SetCursor(*wxSTANDARD_CURSOR);
return TRUE;
}
wxToolBarSimple::~wxToolBarSimple()
{
}
bool wxToolBarSimple::Realize()
{
m_currentRowsOrColumns = 0;
m_lastX = m_xMargin;
m_lastY = m_yMargin;
m_maxWidth = 0;
m_maxHeight = 0;
int maxToolWidth = 0;
int maxToolHeight = 0;
// Find the maximum tool width and height
wxToolBarToolsList::Node *node = m_tools.GetFirst();
while ( node )
{
wxToolBarToolSimple *tool = (wxToolBarToolSimple *)node->GetData();
if ( tool->GetWidth() > maxToolWidth )
maxToolWidth = tool->GetWidth();
if (tool->GetHeight() > maxToolHeight)
maxToolHeight = tool->GetHeight();
node = node->GetNext();
}
int separatorSize = m_toolSeparation;
node = m_tools.GetFirst();
while ( node )
{
wxToolBarToolSimple *tool = (wxToolBarToolSimple *)node->GetData();
if ( tool->IsSeparator() )
{
if ( GetWindowStyleFlag() & wxTB_HORIZONTAL )
{
if (m_currentRowsOrColumns >= m_maxCols)
m_lastY += separatorSize;
else
m_lastX += separatorSize;
}
else
{
if (m_currentRowsOrColumns >= m_maxRows)
m_lastX += separatorSize;
else
m_lastY += separatorSize;
}
}
else if ( tool->IsButton() )
{
if ( GetWindowStyleFlag() & wxTB_HORIZONTAL )
{
if (m_currentRowsOrColumns >= m_maxCols)
{
m_currentRowsOrColumns = 0;
m_lastX = m_xMargin;
m_lastY += maxToolHeight + m_toolPacking;
}
tool->m_x = (wxCoord)(m_lastX + (maxToolWidth - tool->GetWidth())/2.0);
tool->m_y = (wxCoord)(m_lastY + (maxToolHeight - tool->GetHeight())/2.0);
m_lastX += maxToolWidth + m_toolPacking;
}
else
{
if (m_currentRowsOrColumns >= m_maxRows)
{
m_currentRowsOrColumns = 0;
m_lastX += (maxToolWidth + m_toolPacking);
m_lastY = m_yMargin;
}
tool->m_x = (wxCoord)(m_lastX + (maxToolWidth - tool->GetWidth())/2.0);
tool->m_y = (wxCoord)(m_lastY + (maxToolHeight - tool->GetHeight())/2.0);
m_lastY += maxToolHeight + m_toolPacking;
}
m_currentRowsOrColumns ++;
}
else
{
// TODO: support the controls
}
if (m_lastX > m_maxWidth)
m_maxWidth = m_lastX;
if (m_lastY > m_maxHeight)
m_maxHeight = m_lastY;
node = node->GetNext();
}
if ( GetWindowStyleFlag() & wxTB_HORIZONTAL )
m_maxWidth += maxToolWidth;
else
m_maxHeight += maxToolHeight;
m_maxWidth += m_xMargin;
m_maxHeight += m_yMargin;
return TRUE;
}
// ----------------------------------------------------------------------------
// event handlers
// ----------------------------------------------------------------------------
void wxToolBarSimple::OnPaint (wxPaintEvent& WXUNUSED(event))
{
wxPaintDC dc(this);
PrepareDC(dc);
static int count = 0;
// Prevent reentry of OnPaint which would cause wxMemoryDC errors.
if ( count > 0 )
return;
count++;
for ( wxToolBarToolsList::Node *node = m_tools.GetFirst();
node;
node = node->GetNext() )
{
wxToolBarToolBase *tool = node->GetData();
if ( tool->IsButton() )
DrawTool(dc, tool);
}
count--;
}
void wxToolBarSimple::OnSize (wxSizeEvent& WXUNUSED(event))
{
#if wxUSE_CONSTRAINTS
if (GetAutoLayout())
Layout();
#endif
AdjustScrollbars();
}
void wxToolBarSimple::OnKillFocus(wxFocusEvent& WXUNUSED(event))
{
OnMouseEnter(m_pressedTool = m_currentTool = -1);
}
void wxToolBarSimple::OnMouseEvent(wxMouseEvent & event)
{
wxCoord x, y;
event.GetPosition(&x, &y);
wxToolBarToolSimple *tool = (wxToolBarToolSimple *)FindToolForPosition(x, y);
if (event.LeftDown())
{
CaptureMouse();
}
if (event.LeftUp())
{
ReleaseMouse();
}
if (!tool)
{
if (m_currentTool > -1)
{
if (event.LeftIsDown())
SpringUpButton(m_currentTool);
m_currentTool = -1;
OnMouseEnter(-1);
}
return;
}
if (!event.IsButton())
{
if ( tool->GetId() != m_currentTool )
{
// If the left button is kept down and moved over buttons,
// press those buttons.
if ( event.LeftIsDown() && tool->IsEnabled() )
{
SpringUpButton(m_currentTool);
if ( tool->CanBeToggled() )
{
tool->Toggle();
}
DrawTool(tool);
}
m_currentTool = tool->GetId();
OnMouseEnter(m_currentTool);
}
return;
}
// Left button pressed.
if ( event.LeftDown() && tool->IsEnabled() )
{
if ( tool->CanBeToggled() )
{
tool->Toggle();
}
DrawTool(tool);
}
else if (event.RightDown())
{
OnRightClick(tool->GetId(), x, y);
}
// Left Button Released. Only this action confirms selection.
// If the button is enabled and it is not a toggle tool and it is
// in the pressed state, then raise the button and call OnLeftClick.
//
if ( event.LeftUp() && tool->IsEnabled() )
{
// Pass the OnLeftClick event to tool
if ( !OnLeftClick(tool->GetId(), tool->IsToggled()) &&
tool->CanBeToggled() )
{
// If it was a toggle, and OnLeftClick says No Toggle allowed,
// then change it back
tool->Toggle();
}
DrawTool(tool);
}
}
// ----------------------------------------------------------------------------
// drawing
// ----------------------------------------------------------------------------
void wxToolBarSimple::DrawTool(wxToolBarToolBase *tool)
{
wxClientDC dc(this);
DrawTool(dc, tool);
}
void wxToolBarSimple::DrawTool(wxDC& dc, wxToolBarToolBase *toolBase)
{
wxToolBarToolSimple *tool = (wxToolBarToolSimple *)toolBase;
wxMemoryDC memDC;
PrepareDC(dc);
wxPen dark_grey_pen(wxColour( 85,85,85 ), 1, wxSOLID);
wxPen white_pen(wxT("WHITE"), 1, wxSOLID);
wxPen black_pen(wxT("BLACK"), 1, wxSOLID);
wxBitmap bitmap = tool->GetNormalBitmap();
if (!bitmap.Ok())
return;
if ( !tool->IsToggled() )
{
#if wxUSE_PALETTE
#ifndef __WXGTK__
if (bitmap.GetPalette())
memDC.SetPalette(*bitmap.GetPalette());
#endif
#endif // wxUSE_PALETTE
int ax = (int)tool->m_x,
ay = (int)tool->m_y,
bx = (int)(tool->m_x+tool->GetWidth()),
by = (int)(tool->m_y+tool->GetHeight());
memDC.SelectObject(bitmap);
if (m_windowStyle & wxTB_3DBUTTONS)
{
dc.SetClippingRegion(ax, ay, (bx-ax+1), (by-ay+1));
dc.Blit((ax+1), (ay+1), (bx-ax-2), (by-ay-2), &memDC, 0, 0);
wxPen * old_pen = & dc.GetPen();
dc.SetPen( white_pen );
dc.DrawLine(ax,(by-1),ax,ay);
dc.DrawLine(ax,ay,(bx-1),ay);
dc.SetPen( dark_grey_pen );
dc.DrawLine((bx-1),(ay+1),(bx-1),(by-1));
dc.DrawLine((bx-1),(by-1),(ax+1),(by-1));
dc.SetPen( black_pen );
dc.DrawLine(bx,ay,bx,by);
dc.DrawLine(bx,by,ax,by);
dc.SetPen( *old_pen );
dc.DestroyClippingRegion();
// Select bitmap out of the DC
}
else
{
dc.Blit(tool->m_x, tool->m_y,
bitmap.GetWidth(), bitmap.GetHeight(),
&memDC, 0, 0);
}
memDC.SelectObject(wxNullBitmap);
#if wxUSE_PALETTE
#ifndef __WXGTK__
if (bitmap.GetPalette())
memDC.SetPalette(wxNullPalette);
#endif
#endif // wxUSE_PALETTE
}
// No second bitmap, so draw a thick line around bitmap, or invert if mono
else if ( tool->IsToggled() )
{
bool drawBorder = FALSE;
#ifdef __X__ // X doesn't invert properly on colour
drawBorder = wxColourDisplay();
#else // Inversion works fine under Windows
drawBorder = FALSE;
#endif
if (!drawBorder)
{
memDC.SelectObject(tool->GetNormalBitmap());
dc.Blit(tool->m_x, tool->m_y, tool->GetWidth(), tool->GetHeight(),
&memDC, 0, 0, wxSRC_INVERT);
memDC.SelectObject(wxNullBitmap);
}
else
{
bitmap = tool->GetNormalBitmap();
if (m_windowStyle & wxTB_3DBUTTONS)
{
int ax = (int)tool->m_x,
ay = (int)tool->m_y,
bx = (int)(tool->m_x+tool->GetWidth()),
by = (int)(tool->m_y+tool->GetHeight());
memDC.SelectObject(bitmap);
dc.SetClippingRegion(ax, ay, (bx-ax+1), (by-ay+1));
dc.Blit((ax+2), (ay+2), (bx-ax-2), (by-ay-2), &memDC, 0, 0);
wxPen * old_pen = & dc.GetPen();
dc.SetPen( black_pen );
dc.DrawLine(ax,(by-1),ax,ay);
dc.DrawLine(ax,ay,(bx-1),ay);
dc.SetPen( dark_grey_pen );
dc.DrawLine((ax+1),(by-2),(ax+1),(ay+1));
dc.DrawLine((ax+1),(ay+1),(bx-2),(ay+1));
dc.SetPen( white_pen );
dc.DrawLine(bx,ay,bx,by);
dc.DrawLine(bx,by,ax,by);
dc.SetPen( *old_pen );
dc.DestroyClippingRegion();
memDC.SelectObject(wxNullBitmap);
}
else
{
wxCoord x = tool->m_x;
wxCoord y = tool->m_y;
wxCoord w = bitmap.GetWidth();
wxCoord h = bitmap.GetHeight();
wxPen thick_black_pen(wxT("BLACK"), 3, wxSOLID);
memDC.SelectObject(bitmap);
dc.SetClippingRegion(tool->m_x, tool->m_y, w, h);
dc.Blit(tool->m_x, tool->m_y, w, h,
&memDC, 0, 0);
dc.SetPen(thick_black_pen);
dc.SetBrush(*wxTRANSPARENT_BRUSH);
dc.DrawRectangle(x, y, w-1, h-1);
dc.DestroyClippingRegion();
memDC.SelectObject(wxNullBitmap);
}
}
}
}
// ----------------------------------------------------------------------------
// toolbar geometry
// ----------------------------------------------------------------------------
void wxToolBarSimple::SetRows(int nRows)
{
wxCHECK_RET( nRows != 0, _T("max number of rows must be > 0") );
m_maxCols = (GetToolsCount() + nRows - 1) / nRows;
AdjustScrollbars();
Refresh();
}
wxToolBarToolBase *wxToolBarSimple::FindToolForPosition(wxCoord x,
wxCoord y) const
{
wxToolBarToolsList::Node *node = m_tools.GetFirst();
while (node)
{
wxToolBarToolSimple *tool = (wxToolBarToolSimple *)node->GetData();
if ((x >= tool->m_x) && (y >= tool->m_y) &&
(x <= (tool->m_x + tool->GetWidth())) &&
(y <= (tool->m_y + tool->GetHeight())))
{
return tool;
}
node = node->GetNext();
}
return (wxToolBarToolBase *)NULL;
}
// ----------------------------------------------------------------------------
// tool state change handlers
// ----------------------------------------------------------------------------
void wxToolBarSimple::DoEnableTool(wxToolBarToolBase *tool,
bool WXUNUSED(enable))
{
DrawTool(tool);
}
void wxToolBarSimple::DoToggleTool(wxToolBarToolBase *tool,
bool WXUNUSED(toggle))
{
DrawTool(tool);
}
void wxToolBarSimple::DoSetToggle(wxToolBarToolBase * WXUNUSED(tool),
bool WXUNUSED(toggle))
{
// nothing to do
}
// Okay, so we've left the tool we're in ... we must check if the tool we're
// leaving was a 'sprung push button' and if so, spring it back to the up
// state.
void wxToolBarSimple::SpringUpButton(int id)
{
wxToolBarToolBase *tool = FindById(id);
if ( tool && tool->CanBeToggled() )
{
if (tool->IsToggled())
tool->Toggle();
DrawTool(tool);
}
}
// ----------------------------------------------------------------------------
// scrolling implementation
// ----------------------------------------------------------------------------
/*
* pixelsPerUnitX/pixelsPerUnitY: number of pixels per unit (e.g. pixels per text line)
* noUnitsX/noUnitsY: : no. units per scrollbar
*/
void wxToolBarSimple::SetScrollbars (int pixelsPerUnitX, int pixelsPerUnitY,
int noUnitsX, int noUnitsY,
int xPos, int yPos)
{
m_xScrollPixelsPerLine = pixelsPerUnitX;
m_yScrollPixelsPerLine = pixelsPerUnitY;
m_xScrollLines = noUnitsX;
m_yScrollLines = noUnitsY;
int w, h;
GetSize(&w, &h);
// Recalculate scroll bar range and position
if (m_xScrollLines > 0)
{
m_xScrollPosition = xPos;
SetScrollPos (wxHORIZONTAL, m_xScrollPosition, TRUE);
}
else
{
SetScrollbar(wxHORIZONTAL, 0, 0, 0, FALSE);
m_xScrollPosition = 0;
}
if (m_yScrollLines > 0)
{
m_yScrollPosition = yPos;
SetScrollPos (wxVERTICAL, m_yScrollPosition, TRUE);
}
else
{
SetScrollbar(wxVERTICAL, 0, 0, 0, FALSE);
m_yScrollPosition = 0;
}
AdjustScrollbars();
Refresh();
#if 0 //def __WXMSW__
::UpdateWindow ((HWND) GetHWND());
#endif
}
void wxToolBarSimple::OnScroll(wxScrollEvent& event)
{
int orient = event.GetOrientation();
int nScrollInc = CalcScrollInc(event);
if (nScrollInc == 0)
return;
if (orient == wxHORIZONTAL)
{
int newPos = m_xScrollPosition + nScrollInc;
SetScrollPos(wxHORIZONTAL, newPos, TRUE );
}
else
{
int newPos = m_yScrollPosition + nScrollInc;
SetScrollPos(wxVERTICAL, newPos, TRUE );
}
if (orient == wxHORIZONTAL)
{
if (m_xScrollingEnabled)
ScrollWindow(-m_xScrollPixelsPerLine * nScrollInc, 0, NULL);
else
Refresh();
}
else
{
if (m_yScrollingEnabled)
ScrollWindow(0, -m_yScrollPixelsPerLine * nScrollInc, NULL);
else
Refresh();
}
if (orient == wxHORIZONTAL)
{
m_xScrollPosition += nScrollInc;
}
else
{
m_yScrollPosition += nScrollInc;
}
}
int wxToolBarSimple::CalcScrollInc(wxScrollEvent& event)
{
int pos = event.GetPosition();
int orient = event.GetOrientation();
int nScrollInc = 0;
if (event.GetEventType() == wxEVT_SCROLL_TOP)
{
if (orient == wxHORIZONTAL)
nScrollInc = - m_xScrollPosition;
else
nScrollInc = - m_yScrollPosition;
} else
if (event.GetEventType() == wxEVT_SCROLL_BOTTOM)
{
if (orient == wxHORIZONTAL)
nScrollInc = m_xScrollLines - m_xScrollPosition;
else
nScrollInc = m_yScrollLines - m_yScrollPosition;
} else
if (event.GetEventType() == wxEVT_SCROLL_LINEUP)
{
nScrollInc = -1;
} else
if (event.GetEventType() == wxEVT_SCROLL_LINEDOWN)
{
nScrollInc = 1;
} else
if (event.GetEventType() == wxEVT_SCROLL_PAGEUP)
{
if (orient == wxHORIZONTAL)
nScrollInc = -GetScrollPageSize(wxHORIZONTAL);
else
nScrollInc = -GetScrollPageSize(wxVERTICAL);
} else
if (event.GetEventType() == wxEVT_SCROLL_PAGEDOWN)
{
if (orient == wxHORIZONTAL)
nScrollInc = GetScrollPageSize(wxHORIZONTAL);
else
nScrollInc = GetScrollPageSize(wxVERTICAL);
} else
if ((event.GetEventType() == wxEVT_SCROLL_THUMBTRACK) ||
(event.GetEventType() == wxEVT_SCROLL_THUMBRELEASE))
{
if (orient == wxHORIZONTAL)
nScrollInc = pos - m_xScrollPosition;
else
nScrollInc = pos - m_yScrollPosition;
}
if (orient == wxHORIZONTAL)
{
int w, h;
GetClientSize(&w, &h);
int nMaxWidth = m_xScrollLines*m_xScrollPixelsPerLine;
int noPositions = (int) ( ((nMaxWidth - w)/(float)m_xScrollPixelsPerLine) + 0.5 );
if (noPositions < 0)
noPositions = 0;
if ( (m_xScrollPosition + nScrollInc) < 0 )
nScrollInc = -m_xScrollPosition; // As -ve as we can go
else if ( (m_xScrollPosition + nScrollInc) > noPositions )
nScrollInc = noPositions - m_xScrollPosition; // As +ve as we can go
return nScrollInc;
}
else
{
int w, h;
GetClientSize(&w, &h);
int nMaxHeight = m_yScrollLines*m_yScrollPixelsPerLine;
int noPositions = (int) ( ((nMaxHeight - h)/(float)m_yScrollPixelsPerLine) + 0.5 );
if (noPositions < 0)
noPositions = 0;
if ( (m_yScrollPosition + nScrollInc) < 0 )
nScrollInc = -m_yScrollPosition; // As -ve as we can go
else if ( (m_yScrollPosition + nScrollInc) > noPositions )
nScrollInc = noPositions - m_yScrollPosition; // As +ve as we can go
return nScrollInc;
}
}
// Adjust the scrollbars - new version.
void wxToolBarSimple::AdjustScrollbars()
{
int w, h;
GetClientSize(&w, &h);
// Recalculate scroll bar range and position
if (m_xScrollLines > 0)
{
int nMaxWidth = m_xScrollLines*m_xScrollPixelsPerLine;
int newRange = (int) ( ((nMaxWidth)/(float)m_xScrollPixelsPerLine) + 0.5 );
if (newRange < 0)
newRange = 0;
m_xScrollPosition = wxMin(newRange, m_xScrollPosition);
// Calculate page size i.e. number of scroll units you get on the
// current client window
int noPagePositions = (int) ( (w/(float)m_xScrollPixelsPerLine) + 0.5 );
if (noPagePositions < 1)
noPagePositions = 1;
SetScrollbar(wxHORIZONTAL, m_xScrollPosition, noPagePositions, newRange);
SetScrollPageSize(wxHORIZONTAL, noPagePositions);
}
if (m_yScrollLines > 0)
{
int nMaxHeight = m_yScrollLines*m_yScrollPixelsPerLine;
int newRange = (int) ( ((nMaxHeight)/(float)m_yScrollPixelsPerLine) + 0.5 );
if (newRange < 0)
newRange = 0;
m_yScrollPosition = wxMin(newRange, m_yScrollPosition);
// Calculate page size i.e. number of scroll units you get on the
// current client window
int noPagePositions = (int) ( (h/(float)m_yScrollPixelsPerLine) + 0.5 );
if (noPagePositions < 1)
noPagePositions = 1;
SetScrollbar(wxVERTICAL, m_yScrollPosition, noPagePositions, newRange);
SetScrollPageSize(wxVERTICAL, noPagePositions);
}
}
// Prepare the DC by translating it according to the current scroll position
void wxToolBarSimple::PrepareDC(wxDC& dc)
{
dc.SetDeviceOrigin(- m_xScrollPosition * m_xScrollPixelsPerLine, - m_yScrollPosition * m_yScrollPixelsPerLine);
}
void wxToolBarSimple::GetScrollPixelsPerUnit (int *x_unit, int *y_unit) const
{
*x_unit = m_xScrollPixelsPerLine;
*y_unit = m_yScrollPixelsPerLine;
}
int wxToolBarSimple::GetScrollPageSize(int orient) const
{
if ( orient == wxHORIZONTAL )
return m_xScrollLinesPerPage;
else
return m_yScrollLinesPerPage;
}
void wxToolBarSimple::SetScrollPageSize(int orient, int pageSize)
{
if ( orient == wxHORIZONTAL )
m_xScrollLinesPerPage = pageSize;
else
m_yScrollLinesPerPage = pageSize;
}
/*
* Scroll to given position (scroll position, not pixel position)
*/
void wxToolBarSimple::Scroll (int x_pos, int y_pos)
{
int old_x, old_y;
ViewStart (&old_x, &old_y);
if (((x_pos == -1) || (x_pos == old_x)) && ((y_pos == -1) || (y_pos == old_y)))
return;
if (x_pos > -1)
{
m_xScrollPosition = x_pos;
SetScrollPos (wxHORIZONTAL, x_pos, TRUE);
}
if (y_pos > -1)
{
m_yScrollPosition = y_pos;
SetScrollPos (wxVERTICAL, y_pos, TRUE);
}
Refresh();
#if 0 //def __WXMSW__
UpdateWindow ((HWND) GetHWND());
#endif
}
void wxToolBarSimple::EnableScrolling (bool x_scroll, bool y_scroll)
{
m_xScrollingEnabled = x_scroll;
m_yScrollingEnabled = y_scroll;
}
void wxToolBarSimple::GetVirtualSize (int *x, int *y) const
{
*x = m_xScrollPixelsPerLine * m_xScrollLines;
*y = m_yScrollPixelsPerLine * m_yScrollLines;
}
// Where the current view starts from
void wxToolBarSimple::ViewStart (int *x, int *y) const
{
*x = m_xScrollPosition;
*y = m_yScrollPosition;
}
#endif // wxUSE_TOOLBAR_SIMPLE