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rpcs3/wxWidgets/src/generic/renderg.cpp

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///////////////////////////////////////////////////////////////////////////////
// Name: src/generic/renderg.cpp
// Purpose: generic implementation of wxRendererNative (for any platform)
// Author: Vadim Zeitlin
// Modified by:
// Created: 20.07.2003
// RCS-ID: $Id: renderg.cpp 45498 2007-04-16 13:03:05Z VZ $
// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
// License: wxWindows license
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// for compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#include "wx/renderer.h"
#ifndef WX_PRECOMP
#include "wx/string.h"
#include "wx/dc.h"
#include "wx/settings.h"
#include "wx/gdicmn.h"
#include "wx/module.h"
#endif //WX_PRECOMP
#include "wx/splitter.h"
#include "wx/dcmirror.h"
// ----------------------------------------------------------------------------
// wxRendererGeneric: our wxRendererNative implementation
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxRendererGeneric : public wxRendererNative
{
public:
wxRendererGeneric();
virtual int DrawHeaderButton(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags = 0,
wxHeaderSortIconType sortArrow = wxHDR_SORT_ICON_NONE,
wxHeaderButtonParams* params = NULL);
virtual int DrawHeaderButtonContents(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags = 0,
wxHeaderSortIconType sortArrow = wxHDR_SORT_ICON_NONE,
wxHeaderButtonParams* params = NULL);
virtual int GetHeaderButtonHeight(wxWindow *win);
virtual void DrawTreeItemButton(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags = 0);
virtual void DrawSplitterBorder(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags = 0);
virtual void DrawSplitterSash(wxWindow *win,
wxDC& dc,
const wxSize& size,
wxCoord position,
wxOrientation orient,
int flags = 0);
virtual void DrawComboBoxDropButton(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags = 0);
virtual void DrawDropArrow(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags = 0);
virtual void DrawCheckBox(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags = 0);
virtual void DrawPushButton(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags = 0);
virtual void DrawItemSelectionRect(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags = 0);
virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win);
virtual wxRendererVersion GetVersion() const
{
return wxRendererVersion(wxRendererVersion::Current_Version,
wxRendererVersion::Current_Age);
}
// Cleanup by deleting standard renderer
static void Cleanup();
// Get the generic object
static wxRendererGeneric* DoGetGeneric();
protected:
// draw the rectange using the first pen for the left and top sides and
// the second one for the bottom and right ones
void DrawShadedRect(wxDC& dc, wxRect *rect,
const wxPen& pen1, const wxPen& pen2);
// the standard pens
wxPen m_penBlack,
m_penDarkGrey,
m_penLightGrey,
m_penHighlight;
static wxRendererGeneric* sm_rendererGeneric;
};
// ============================================================================
// wxRendererGeneric implementation
// ============================================================================
// Get the generic object
wxRendererGeneric* wxRendererGeneric::DoGetGeneric()
{
if (!sm_rendererGeneric)
sm_rendererGeneric = new wxRendererGeneric;
return sm_rendererGeneric;
}
// ----------------------------------------------------------------------------
// wxRendererGeneric creation
// ----------------------------------------------------------------------------
/* static */
wxRendererNative& wxRendererNative::GetGeneric()
{
return * wxRendererGeneric::DoGetGeneric();
}
void wxRendererGeneric::Cleanup()
{
if (sm_rendererGeneric)
delete sm_rendererGeneric;
sm_rendererGeneric = NULL;
}
wxRendererGeneric* wxRendererGeneric::sm_rendererGeneric = NULL;
wxRendererGeneric::wxRendererGeneric()
: m_penBlack(wxSystemSettings::GetColour(wxSYS_COLOUR_3DDKSHADOW)),
m_penDarkGrey(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW)),
m_penLightGrey(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)),
m_penHighlight(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHIGHLIGHT))
{
}
// ----------------------------------------------------------------------------
// wxRendererGeneric helpers
// ----------------------------------------------------------------------------
void
wxRendererGeneric::DrawShadedRect(wxDC& dc,
wxRect *rect,
const wxPen& pen1,
const wxPen& pen2)
{
// draw the rectangle
dc.SetPen(pen1);
dc.DrawLine(rect->GetLeft(), rect->GetTop(),
rect->GetLeft(), rect->GetBottom());
dc.DrawLine(rect->GetLeft() + 1, rect->GetTop(),
rect->GetRight(), rect->GetTop());
dc.SetPen(pen2);
dc.DrawLine(rect->GetRight(), rect->GetTop(),
rect->GetRight(), rect->GetBottom());
dc.DrawLine(rect->GetLeft(), rect->GetBottom(),
rect->GetRight() + 1, rect->GetBottom());
// adjust the rect
rect->Inflate(-1);
}
// ----------------------------------------------------------------------------
// tree/list ctrl drawing
// ----------------------------------------------------------------------------
int
wxRendererGeneric::DrawHeaderButton(wxWindow* win,
wxDC& dc,
const wxRect& rect,
int flags,
wxHeaderSortIconType sortArrow,
wxHeaderButtonParams* params)
{
const int CORNER = 1;
const wxCoord x = rect.x,
y = rect.y,
w = rect.width,
h = rect.height;
dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)));
dc.SetPen(*wxTRANSPARENT_PEN);
dc.DrawRectangle(rect);
dc.SetBrush(*wxTRANSPARENT_BRUSH);
dc.SetPen(m_penBlack);
dc.DrawLine( x+w-CORNER+1, y, x+w, y+h ); // right (outer)
dc.DrawRectangle( x, y+h, w+1, 1 ); // bottom (outer)
dc.SetPen(m_penDarkGrey);
dc.DrawLine( x+w-CORNER, y, x+w-1, y+h ); // right (inner)
dc.DrawRectangle( x+1, y+h-1, w-2, 1 ); // bottom (inner)
dc.SetPen(m_penHighlight);
dc.DrawRectangle( x, y, w-CORNER+1, 1 ); // top (outer)
dc.DrawRectangle( x, y, 1, h ); // left (outer)
dc.DrawLine( x, y+h-1, x+1, y+h-1 );
dc.DrawLine( x+w-1, y, x+w-1, y+1 );
return DrawHeaderButtonContents(win, dc, rect, flags, sortArrow, params);
}
int
wxRendererGeneric::DrawHeaderButtonContents(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags,
wxHeaderSortIconType sortArrow,
wxHeaderButtonParams* params)
{
int labelWidth = 0;
// Mark this item as selected. For the generic version we'll just draw an
// underline
if ( flags & wxCONTROL_SELECTED )
{
// draw a line at the bottom of the header button, overlaying the
// native hot-tracking line (on XP)
const int penwidth = 3;
int y = rect.y + rect.height + 1 - penwidth;
wxColour c = (params && params->m_selectionColour.Ok()) ?
params->m_selectionColour : wxColour(0x66, 0x66, 0x66);
wxPen pen(c, penwidth);
pen.SetCap(wxCAP_BUTT);
dc.SetPen(pen);
dc.DrawLine(rect.x, y, rect.x + rect.width, y);
}
// Draw an up or down arrow
int arrowSpace = 0;
if (sortArrow != wxHDR_SORT_ICON_NONE )
{
wxRect ar = rect;
// make a rect for the arrow
ar.height = 4;
ar.width = 8;
ar.y += (rect.height - ar.height)/2;
ar.x = ar.x + rect.width - 3*ar.width/2;
arrowSpace = 3*ar.width/2; // space to preserve when drawing the label
wxPoint triPt[3];
if ( sortArrow & wxHDR_SORT_ICON_UP )
{
triPt[0].x = ar.width / 2;
triPt[0].y = 0;
triPt[1].x = ar.width;
triPt[1].y = ar.height;
triPt[2].x = 0;
triPt[2].y = ar.height;
}
else
{
triPt[0].x = 0;
triPt[0].y = 0;
triPt[1].x = ar.width;
triPt[1].y = 0;
triPt[2].x = ar.width / 2;
triPt[2].y = ar.height;
}
wxColour c = (params && params->m_arrowColour.Ok()) ?
params->m_arrowColour : wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW);
dc.SetPen(wxPen(c));
dc.SetBrush(wxBrush(c));
dc.DrawPolygon( 3, triPt, ar.x, ar.y);
}
labelWidth += arrowSpace;
const int margin = 5; // number of pixels to reserve on either side of the label
int bmpWidth = 0;
int txtEnd = 0;
if ( params && params->m_labelBitmap.Ok() )
bmpWidth = params->m_labelBitmap.GetWidth() + 2;
labelWidth += bmpWidth + 2*margin;
// Draw a label if one is given
if ( params && !params->m_labelText.empty() )
{
wxFont font = params->m_labelFont.Ok() ?
params->m_labelFont : win->GetFont();
wxColour clr = params->m_labelColour.Ok() ?
params->m_labelColour : win->GetForegroundColour();
wxString label( params->m_labelText );
dc.SetFont(font);
dc.SetTextForeground(clr);
dc.SetBackgroundMode(wxTRANSPARENT);
int tw, th, td, x, y;
dc.GetTextExtent( label, &tw, &th, &td);
labelWidth += tw;
y = rect.y + wxMax(0, (rect.height - (th+td)) / 2);
// truncate and add an ellipsis (...) if the text is too wide.
int targetWidth = rect.width - arrowSpace - bmpWidth - 2*margin;
if ( tw > targetWidth )
{
int ellipsisWidth;
dc.GetTextExtent( wxT("..."), &ellipsisWidth, NULL);
do {
label.Truncate( label.length() - 1 );
dc.GetTextExtent( label, &tw, &th);
} while (tw + ellipsisWidth > targetWidth && label.length() );
label.append( wxT("...") );
tw += ellipsisWidth;
}
switch (params->m_labelAlignment)
{
default:
case wxALIGN_LEFT:
x = rect.x + margin;
break;
case wxALIGN_CENTER:
x = rect.x + wxMax(0, (rect.width - arrowSpace - tw - bmpWidth)/2);
break;
case wxALIGN_RIGHT:
x = rect.x + wxMax(0, rect.width - arrowSpace - margin - tw - bmpWidth);
break;
}
dc.DrawText(label, x, y);
txtEnd = x + tw + 2;
}
// draw the bitmap if there is one
if ( params && params->m_labelBitmap.Ok() )
{
int w, h, x, y;
w = params->m_labelBitmap.GetWidth();
h = params->m_labelBitmap.GetHeight();
y = rect.y + wxMax(1, (rect.height - h) / 2);
// if there is a text label, then put the bitmap at the end of the label
if ( txtEnd != 0 )
{
x = txtEnd;
}
// otherwise use the alignment flags
else
{
switch (params->m_labelAlignment)
{
default:
case wxALIGN_LEFT:
x = rect.x + margin;
break;
case wxALIGN_CENTER:
x = rect.x + wxMax(1, (rect.width - arrowSpace - w)/2);
break;
case wxALIGN_RIGHT:
x = rect.x + wxMax(1, rect.width - arrowSpace - margin - w);
break;
}
}
dc.DrawBitmap(params->m_labelBitmap, x, y, true);
}
return labelWidth;
}
int wxRendererGeneric::GetHeaderButtonHeight(wxWindow *win)
{
// Copied and adapted from src/generic/listctrl.cpp
const int HEADER_OFFSET_Y = 1;
const int EXTRA_HEIGHT = 4;
int w=0, h=14, d=0;
if (win)
win->GetTextExtent(wxT("Hg"), &w, &h, &d);
return h + d + 2 * HEADER_OFFSET_Y + EXTRA_HEIGHT;
}
// draw the plus or minus sign
void
wxRendererGeneric::DrawTreeItemButton(wxWindow * WXUNUSED(win),
wxDC& dc,
const wxRect& rect,
int flags)
{
// store settings
wxDCPenChanger penChanger(dc, *wxGREY_PEN);
wxDCBrushChanger brushChanger(dc, *wxWHITE_BRUSH);
dc.DrawRectangle(rect);
// black lines
const wxCoord xMiddle = rect.x + rect.width/2;
const wxCoord yMiddle = rect.y + rect.height/2;
// half of the length of the horz lines in "-" and "+"
const wxCoord halfWidth = rect.width/2 - 2;
dc.SetPen(*wxBLACK_PEN);
dc.DrawLine(xMiddle - halfWidth, yMiddle,
xMiddle + halfWidth + 1, yMiddle);
if ( !(flags & wxCONTROL_EXPANDED) )
{
// turn "-" into "+"
const wxCoord halfHeight = rect.height/2 - 2;
dc.DrawLine(xMiddle, yMiddle - halfHeight,
xMiddle, yMiddle + halfHeight + 1);
}
}
// ----------------------------------------------------------------------------
// sash drawing
// ----------------------------------------------------------------------------
wxSplitterRenderParams
wxRendererGeneric::GetSplitterParams(const wxWindow *win)
{
// see below
wxCoord sashWidth,
border;
if ( win->HasFlag(wxSP_3DSASH) )
sashWidth = 7;
else if ( win->HasFlag(wxSP_NOSASH) )
sashWidth = 0;
else // no 3D effect
sashWidth = 3;
if ( win->HasFlag(wxSP_3DBORDER) )
border = 2;
else // no 3D effect
border = 0;
return wxSplitterRenderParams(sashWidth, border, false);
}
void
wxRendererGeneric::DrawSplitterBorder(wxWindow *win,
wxDC& dc,
const wxRect& rectOrig,
int WXUNUSED(falgs))
{
if ( win->HasFlag(wxSP_3DBORDER) )
{
wxRect rect = rectOrig;
DrawShadedRect(dc, &rect, m_penDarkGrey, m_penHighlight);
DrawShadedRect(dc, &rect, m_penBlack, m_penLightGrey);
}
}
void
wxRendererGeneric::DrawSplitterSash(wxWindow *win,
wxDC& dcReal,
const wxSize& sizeReal,
wxCoord position,
wxOrientation orient,
int WXUNUSED(flags))
{
// to avoid duplicating the same code for horizontal and vertical sashes,
// simply mirror the DC instead if needed (i.e. if horz splitter)
wxMirrorDC dc(dcReal, orient != wxVERTICAL);
wxSize size = dc.Reflect(sizeReal);
// we draw a Win32-like grey sash with possible 3D border here:
//
// ---- this is position
// /
// v
// dWGGGDd
// GWGGGDB
// GWGGGDB where G is light grey (face)
// GWGGGDB W white (light)
// GWGGGDB D dark grey (shadow)
// GWGGGDB B black (dark shadow)
// GWGGGDB
// GWGGGDB and lower letters are our border (already drawn)
// GWGGGDB
// wWGGGDd
//
// only the middle 3 columns are drawn unless wxSP_3D is specified
const wxCoord h = size.y;
wxCoord offset = 0;
// If we're drawing the border, draw the sash 3d lines shorter
if ( win->HasFlag(wxSP_3DBORDER) )
{
offset = 1;
}
dc.SetPen(*wxTRANSPARENT_PEN);
dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)));
if ( win->HasFlag(wxSP_3DSASH) )
{
// Draw the 3D sash
dc.DrawRectangle(position + 2, 0, 3, h);
dc.SetPen(m_penLightGrey);
dc.DrawLine(position, offset, position, h - offset);
dc.SetPen(m_penHighlight);
dc.DrawLine(position + 1, 0, position + 1, h);
dc.SetPen(m_penDarkGrey);
dc.DrawLine(position + 5, 0, position + 5, h);
dc.SetPen(m_penBlack);
dc.DrawLine(position + 6, offset, position + 6, h - offset);
}
else
{
// Draw a flat sash
dc.DrawRectangle(position, 0, 3, h);
}
}
// ----------------------------------------------------------------------------
// button drawing
// ----------------------------------------------------------------------------
void
wxRendererGeneric::DrawComboBoxDropButton(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags)
{
DrawPushButton(win,dc,rect,flags);
DrawDropArrow(win,dc,rect,flags);
}
void
wxRendererGeneric::DrawDropArrow(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int WXUNUSED(flags))
{
// This generic implementation should be good
// enough for Windows platforms (including XP).
int arrowHalf = rect.width/5;
int rectMid = rect.width / 2;
int arrowTopY = (rect.height/2) - (arrowHalf/2);
// This should always result in arrow with odd width.
wxPoint pt[] =
{
wxPoint(rectMid - arrowHalf, arrowTopY),
wxPoint(rectMid + arrowHalf, arrowTopY),
wxPoint(rectMid, arrowTopY + arrowHalf)
};
dc.SetBrush(wxBrush(win->GetForegroundColour()));
dc.SetPen(wxPen(win->GetForegroundColour()));
dc.DrawPolygon(WXSIZEOF(pt), pt, rect.x, rect.y);
}
void
wxRendererGeneric::DrawCheckBox(wxWindow *WXUNUSED(win),
wxDC& dc,
const wxRect& rect,
int flags)
{
dc.SetPen(*(flags & wxCONTROL_DISABLED ? wxGREY_PEN : wxBLACK_PEN));
dc.SetBrush( *wxTRANSPARENT_BRUSH );
dc.DrawRectangle(rect);
if ( flags & wxCONTROL_CHECKED )
{
dc.DrawCheckMark(rect.Deflate(2, 2));
}
}
void
wxRendererGeneric::DrawPushButton(wxWindow *win,
wxDC& dc,
const wxRect& rect,
int flags)
{
// Don't try anything too fancy. It'll just turn out looking
// out-of-place on most platforms.
wxColour bgCol = flags & wxCONTROL_DISABLED ?
wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE) :
win->GetBackgroundColour();
dc.SetBrush(wxBrush(bgCol));
dc.SetPen(wxPen(bgCol));
dc.DrawRectangle(rect);
}
void
wxRendererGeneric::DrawItemSelectionRect(wxWindow * WXUNUSED(win),
wxDC& dc,
const wxRect& rect,
int flags)
{
wxBrush brush;
if ( flags & wxCONTROL_SELECTED )
{
if ( flags & wxCONTROL_FOCUSED )
{
brush = wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT));
}
else // !focused
{
brush = wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNSHADOW));
}
}
else // !selected
{
brush = *wxTRANSPARENT_BRUSH;
}
dc.SetBrush(brush);
dc.SetPen(flags & wxCONTROL_CURRENT ? *wxBLACK_PEN : *wxTRANSPARENT_PEN);
dc.DrawRectangle( rect );
}
// ----------------------------------------------------------------------------
// A module to allow cleanup of generic renderer.
// ----------------------------------------------------------------------------
class wxGenericRendererModule: public wxModule
{
DECLARE_DYNAMIC_CLASS(wxGenericRendererModule)
public:
wxGenericRendererModule() {}
bool OnInit() { return true; }
void OnExit() { wxRendererGeneric::Cleanup(); }
};
IMPLEMENT_DYNAMIC_CLASS(wxGenericRendererModule, wxModule)
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