src/gtk/renderer.cpp

///////////////////////////////////////////////////////////////////////////////
// Name:        src/gtk/renderer.cpp
// Purpose:     implementation of wxRendererNative for wxGTK
// Author:      Vadim Zeitlin
// Modified by:
// Created:     20.07.2003
// RCS-ID:      $Id$
// Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
// License:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

// ============================================================================
// 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/window.h"
    #include "wx/dcclient.h"
    #include "wx/settings.h"
#endif

#include <gtk/gtk.h>
#include "wx/gtk/win_gtk.h"

// ----------------------------------------------------------------------------
// wxRendererGTK: our wxRendererNative implementation
// ----------------------------------------------------------------------------

class WXDLLEXPORT wxRendererGTK : public wxDelegateRendererNative
{
public:
    // draw the header control button (used by wxListCtrl)
    virtual int  DrawHeaderButton(wxWindow *win,
                                  wxDC& dc,
                                  const wxRect& rect,
                                  int flags = 0,
                                  wxHeaderSortIconType sortArrow = wxHDR_SORT_ICON_NONE,
                                  wxHeaderButtonParams* params = NULL);

    // draw the expanded/collapsed icon for a tree control item
    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 void DrawFocusRect(wxWindow* win, wxDC& dc, const wxRect& rect, int flags = 0);

    virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win);

private:
    // FIXME: shouldn't we destroy these windows somewhere?

    // used by DrawPushButton and DrawDropArrow
    static GtkWidget *GetButtonWidget();

    // used by DrawTreeItemButton()
    static GtkWidget *GetTreeWidget();

    // used by DrawCheckBox()
    static GtkWidget *GetCheckButtonWidget();

    // Used by DrawHeaderButton
    static GtkWidget *GetHeaderButtonWidget();
};

// ============================================================================
// implementation
// ============================================================================

/* static */
wxRendererNative& wxRendererNative::GetDefault()
{
    static wxRendererGTK s_rendererGTK;

    return s_rendererGTK;
}

// ----------------------------------------------------------------------------
// helper functions
// ----------------------------------------------------------------------------

GtkWidget *
wxRendererGTK::GetButtonWidget()
{
    static GtkWidget *s_button = NULL;
    static GtkWidget *s_window = NULL;

    if ( !s_button )
    {
        s_window = gtk_window_new( GTK_WINDOW_POPUP );
        gtk_widget_realize( s_window );
        s_button = gtk_button_new();
        gtk_container_add( GTK_CONTAINER(s_window), s_button );
        gtk_widget_realize( s_button );
    }

    return s_button;
}

GtkWidget *
wxRendererGTK::GetCheckButtonWidget()
{
    static GtkWidget *s_button = NULL;
    static GtkWidget *s_window = NULL;

    if ( !s_button )
    {
        s_window = gtk_window_new( GTK_WINDOW_POPUP );
        gtk_widget_realize( s_window );
        s_button = gtk_check_button_new();
        gtk_container_add( GTK_CONTAINER(s_window), s_button );
        gtk_widget_realize( s_button );
    }

    return s_button;
}

GtkWidget *
wxRendererGTK::GetTreeWidget()
{
    static GtkWidget *s_tree = NULL;
    static GtkWidget *s_window = NULL;

    if ( !s_tree )
    {
        s_tree = gtk_tree_view_new();
        s_window = gtk_window_new( GTK_WINDOW_POPUP );
        gtk_widget_realize( s_window );
        gtk_container_add( GTK_CONTAINER(s_window), s_tree );
        gtk_widget_realize( s_tree );
    }

    return s_tree;
}


// This one just gets the button used by the column header.  Although it's
// still a gtk_button the themes will typically differentiate and draw them
// differently if the button is in a treeview.
GtkWidget *
wxRendererGTK::GetHeaderButtonWidget()
{
    static GtkWidget *s_button = NULL;

    if ( !s_button )
    {
        // Get the dummy tree widget, give it a column, and then use the
        // widget in the column header for the rendering code.
        GtkWidget* treewidget = GetTreeWidget();
        GtkTreeViewColumn*  column = gtk_tree_view_column_new();
        gtk_tree_view_append_column(GTK_TREE_VIEW(treewidget), column);
        s_button = column->button;
    }

    return s_button;
}

// ----------------------------------------------------------------------------
// list/tree controls drawing
// ----------------------------------------------------------------------------

int
wxRendererGTK::DrawHeaderButton(wxWindow *win,
                                wxDC& dc,
                                const wxRect& rect,
                                int flags,
                                wxHeaderSortIconType sortArrow,
                                wxHeaderButtonParams* params)
{

    GtkWidget *button = GetHeaderButtonWidget();

    GdkWindow* gdk_window = NULL;
#if wxUSE_NEW_DC
    wxImplDC *impl = dc.GetImpl();
    wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
    if (gtk_impl)
        gdk_window = gtk_impl->GetGDKWindow();
#else
    gdk_window = dc.GetGDKWindow();
#endif
    wxASSERT_MSG( gdk_window,
                  wxT("cannot use wxRendererNative on wxDC of this type") );

    int x_diff = 0;
    if (win->GetLayoutDirection() == wxLayout_RightToLeft)
        x_diff = rect.width;

    GtkStateType state = GTK_STATE_NORMAL;
    if (flags & wxCONTROL_DISABLED)
        state = GTK_STATE_INSENSITIVE;
    else
    {
        if (flags & wxCONTROL_CURRENT)
            state = GTK_STATE_PRELIGHT;
    }

    gtk_paint_box
    (
        button->style,
        gdk_window,
        state,
        GTK_SHADOW_OUT,
        NULL,
        button,
        "button",
        dc.LogicalToDeviceX(rect.x) - x_diff, rect.y, rect.width, rect.height
    );

    return DrawHeaderButtonContents(win, dc, rect, flags, sortArrow, params);
}

// draw a ">" or "v" button
void
wxRendererGTK::DrawTreeItemButton(wxWindow* win,
                                  wxDC& dc, const wxRect& rect, int flags)
{
    GtkWidget *tree = GetTreeWidget();

    GdkWindow* gdk_window = NULL;
#if wxUSE_NEW_DC
    wxImplDC *impl = dc.GetImpl();
    wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
    if (gtk_impl)
        gdk_window = gtk_impl->GetGDKWindow();
#else
    gdk_window = dc.GetGDKWindow();
#endif
    wxASSERT_MSG( gdk_window,
                  wxT("cannot use wxRendererNative on wxDC of this type") );

    GtkStateType state;
    if ( flags & wxCONTROL_CURRENT )
        state = GTK_STATE_PRELIGHT;
    else
        state = GTK_STATE_NORMAL;

    int x_diff = 0;
    if (win->GetLayoutDirection() == wxLayout_RightToLeft)
        x_diff = rect.width;

    // VZ: I don't know how to get the size of the expander so as to centre it
    //     in the given rectangle, +2/3 below is just what looks good here...
    gtk_paint_expander
    (
        tree->style,
        gdk_window,
        state,
        NULL,
        tree,
        "treeview",
        dc.LogicalToDeviceX(rect.x) + 6 - x_diff,
        dc.LogicalToDeviceY(rect.y) + 3,
        flags & wxCONTROL_EXPANDED ? GTK_EXPANDER_EXPANDED
                                   : GTK_EXPANDER_COLLAPSED
    );
}


// ----------------------------------------------------------------------------
// splitter sash drawing
// ----------------------------------------------------------------------------

static int GetGtkSplitterFullSize()
{
    static GtkWidget *s_paned = NULL;
    if (s_paned == NULL)
        s_paned = gtk_vpaned_new();

    gint handle_size;
    gtk_widget_style_get (s_paned, "handle_size", &handle_size, NULL);

    return handle_size;
}

wxSplitterRenderParams
wxRendererGTK::GetSplitterParams(const wxWindow *WXUNUSED(win))
{
    // we don't draw any border, hence 0 for the second field
    return wxSplitterRenderParams
           (
               GetGtkSplitterFullSize(),
               0,
               true     // hot sensitive
           );
}

void
wxRendererGTK::DrawSplitterBorder(wxWindow * WXUNUSED(win),
                                  wxDC& WXUNUSED(dc),
                                  const wxRect& WXUNUSED(rect),
                                  int WXUNUSED(flags))
{
    // nothing to do
}

void
wxRendererGTK::DrawSplitterSash(wxWindow *win,
                                wxDC& dc,
                                const wxSize& size,
                                wxCoord position,
                                wxOrientation orient,
                                int flags)
{
    if ( !win->m_wxwindow->window )
    {
        // window not realized yet
        return;
    }

    GdkWindow* gdk_window = NULL;
#if wxUSE_NEW_DC
    wxImplDC *impl = dc.GetImpl();
    wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
    if (gtk_impl)
        gdk_window = gtk_impl->GetGDKWindow();
#else
    gdk_window = dc.GetGDKWindow();
#endif
    wxASSERT_MSG( gdk_window,
                  wxT("cannot use wxRendererNative on wxDC of this type") );

    wxCoord full_size = GetGtkSplitterFullSize();

    // are we drawing vertical or horizontal splitter?
    const bool isVert = orient == wxVERTICAL;

    GdkRectangle rect;

    if ( isVert )
    {
        rect.x = position;
        rect.y = 0;
        rect.width = full_size;
        rect.height = size.y;
    }
    else // horz
    {
        rect.x = 0;
        rect.y = position;
        rect.height = full_size;
        rect.width = size.x;
    }

    int x_diff = 0;
    if (win->GetLayoutDirection() == wxLayout_RightToLeft)
        x_diff = rect.width;

    gtk_paint_handle
    (
        win->m_wxwindow->style,
        gdk_window,
        flags & wxCONTROL_CURRENT ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL,
        GTK_SHADOW_NONE,
        NULL /* no clipping */,
        win->m_wxwindow,
        "paned",
        dc.LogicalToDeviceX(rect.x) - x_diff,
        dc.LogicalToDeviceY(rect.y),
        rect.width,
        rect.height,
        isVert ? GTK_ORIENTATION_VERTICAL : GTK_ORIENTATION_HORIZONTAL
    );
}

void
wxRendererGTK::DrawDropArrow(wxWindow *WXUNUSED(win),
                             wxDC& dc,
                             const wxRect& rect,
                             int flags)
{
    GtkWidget *button = GetButtonWidget();

    // If we give GTK_PIZZA(win->m_wxwindow)->bin_window as
    // a window for gtk_paint_xxx function, then it won't
    // work for wxMemoryDC. So that is why we assume wxDC
    // is wxWindowDC (wxClientDC, wxMemoryDC and wxPaintDC
    // are derived from it) and use its m_window.
    GdkWindow* gdk_window = NULL;
#if wxUSE_NEW_DC
    wxImplDC *impl = dc.GetImpl();
    wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
    if (gtk_impl)
        gdk_window = gtk_impl->GetGDKWindow();
#else
    gdk_window = dc.GetGDKWindow();
#endif
    wxASSERT_MSG( gdk_window,
                  wxT("cannot use wxRendererNative on wxDC of this type") );

    // draw arrow so that there is even space horizontally
    // on both sides
    int arrowX = rect.width/4 + 1;
    int arrowWidth = rect.width - (arrowX*2);

    // scale arrow's height accoording to the width
    int arrowHeight = rect.width/3;
    int arrowY = (rect.height-arrowHeight)/2 +
                 ((rect.height-arrowHeight) & 1);

    GtkStateType state;

    if ( flags & wxCONTROL_PRESSED )
        state = GTK_STATE_ACTIVE;
    else if ( flags & wxCONTROL_DISABLED )
        state = GTK_STATE_INSENSITIVE;
    else if ( flags & wxCONTROL_CURRENT )
        state = GTK_STATE_PRELIGHT;
    else
        state = GTK_STATE_NORMAL;

    // draw arrow on button
    gtk_paint_arrow
    (
        button->style,
        gdk_window,
        state,
        flags & wxCONTROL_PRESSED ? GTK_SHADOW_IN : GTK_SHADOW_OUT,
        NULL,
        button,
        "arrow",
        GTK_ARROW_DOWN,
        FALSE,
        rect.x + arrowX,
        rect.y + arrowY,
        arrowWidth,
        arrowHeight
    );
}

void
wxRendererGTK::DrawComboBoxDropButton(wxWindow *win,
                                      wxDC& dc,
                                      const wxRect& rect,
                                      int flags)
{
    DrawPushButton(win,dc,rect,flags);
    DrawDropArrow(win,dc,rect);
}

void
wxRendererGTK::DrawCheckBox(wxWindow *WXUNUSED(win),
                            wxDC& dc,
                            const wxRect& rect,
                            int flags )
{
    GtkWidget *button = GetCheckButtonWidget();

    GdkWindow* gdk_window = NULL;
#if wxUSE_NEW_DC
    wxImplDC *impl = dc.GetImpl();
    wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
    if (gtk_impl)
        gdk_window = gtk_impl->GetGDKWindow();
#else
    gdk_window = dc.GetGDKWindow();
#endif
    wxASSERT_MSG( gdk_window,
                  wxT("cannot use wxRendererNative on wxDC of this type") );

    GtkStateType state;

    if ( flags & wxCONTROL_PRESSED )
        state = GTK_STATE_ACTIVE;
    else if ( flags & wxCONTROL_DISABLED )
        state = GTK_STATE_INSENSITIVE;
    else if ( flags & wxCONTROL_CURRENT )
        state = GTK_STATE_PRELIGHT;
    else
        state = GTK_STATE_NORMAL;

    gtk_paint_check
    (
        button->style,
        gdk_window,
        state,
        flags & wxCONTROL_CHECKED ? GTK_SHADOW_IN : GTK_SHADOW_OUT,
        NULL,
        button,
        "cellcheck",
        dc.LogicalToDeviceX(rect.x)+2,
        dc.LogicalToDeviceY(rect.y)+3,
        13, 13
    );
}

void
wxRendererGTK::DrawPushButton(wxWindow *WXUNUSED(win),
                              wxDC& dc,
                              const wxRect& rect,
                              int flags)
{
    GtkWidget *button = GetButtonWidget();

    GdkWindow* gdk_window = NULL;
#if wxUSE_NEW_DC
    wxImplDC *impl = dc.GetImpl();
    wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
    if (gtk_impl)
        gdk_window = gtk_impl->GetGDKWindow();
#else
    gdk_window = dc.GetGDKWindow();
#endif
    wxASSERT_MSG( gdk_window,
                  wxT("cannot use wxRendererNative on wxDC of this type") );

    // draw button
    GtkStateType state;

    if ( flags & wxCONTROL_PRESSED )
        state = GTK_STATE_ACTIVE;
    else if ( flags & wxCONTROL_DISABLED )
        state = GTK_STATE_INSENSITIVE;
    else if ( flags & wxCONTROL_CURRENT )
        state = GTK_STATE_PRELIGHT;
    else
        state = GTK_STATE_NORMAL;

    gtk_paint_box
    (
        button->style,
        gdk_window,
        state,
        flags & wxCONTROL_PRESSED ? GTK_SHADOW_IN : GTK_SHADOW_OUT,
        NULL,
        button,
        "button",
        rect.x, rect.y, rect.width, rect.height
    );
}

void
wxRendererGTK::DrawItemSelectionRect(wxWindow *win,
                                     wxDC& dc,
                                     const wxRect& rect,
                                     int flags )
{
    GdkWindow* gdk_window = NULL;
#if wxUSE_NEW_DC
    wxImplDC *impl = dc.GetImpl();
    wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
    if (gtk_impl)
        gdk_window = gtk_impl->GetGDKWindow();
#else
    gdk_window = dc.GetGDKWindow();
#endif
    wxASSERT_MSG( gdk_window,
                  wxT("cannot use wxRendererNative on wxDC of this type") );

    int x_diff = 0;
    if (win->GetLayoutDirection() == wxLayout_RightToLeft)
        x_diff = rect.width;

    GtkStateType state;
    if (flags & wxCONTROL_SELECTED)
    {
        // the wxCONTROL_FOCUSED state is deduced
        // directly from the m_wxwindow by GTK+
        state = GTK_STATE_SELECTED;

        gtk_paint_flat_box( win->m_widget->style,
                        gdk_window,
                        state,
                        GTK_SHADOW_NONE,
                        NULL,
                        win->m_wxwindow,
                        "cell_even",
                        dc.LogicalToDeviceX(rect.x) - x_diff,
                        dc.LogicalToDeviceY(rect.y),
                        rect.width,
                        rect.height );
    }
    else // !wxCONTROL_SELECTED
    {
        state = GTK_STATE_NORMAL;
    }

    if ((flags & wxCONTROL_CURRENT) && (flags & wxCONTROL_FOCUSED))
    {
        gtk_paint_focus( win->m_widget->style,
                         gdk_window,
                         state,
                         NULL,
                         win->m_wxwindow,
                         "treeview",
                         dc.LogicalToDeviceX(rect.x),
                         dc.LogicalToDeviceY(rect.y),
                         rect.width,
                         rect.height );
    }
}

void wxRendererGTK::DrawFocusRect(wxWindow* win, wxDC& dc, const wxRect& rect, int flags)
{
    GdkWindow* gdk_window = NULL;
#if wxUSE_NEW_DC
    wxImplDC *impl = dc.GetImpl();
    wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
    if (gtk_impl)
        gdk_window = gtk_impl->GetGDKWindow();
#else
    gdk_window = dc.GetGDKWindow();
#endif
    wxASSERT_MSG( gdk_window,
                  wxT("cannot use wxRendererNative on wxDC of this type") );

    GtkStateType state;
    if (flags & wxCONTROL_SELECTED)
        state = GTK_STATE_SELECTED;
    else
        state = GTK_STATE_NORMAL;

    gtk_paint_focus( win->m_widget->style,
                     gdk_window,
                     state,
                     NULL,
                     win->m_wxwindow,
                     NULL,
                     dc.LogicalToDeviceX(rect.x),
                     dc.LogicalToDeviceY(rect.y),
                     rect.width,
                     rect.height );
}
Commit	Line	Data
	1	///////////////////////////////////////////////////////////////////////////////
	2	// Name: src/gtk/renderer.cpp
	3	// Purpose: implementation of wxRendererNative for wxGTK
	4	// Author: Vadim Zeitlin
	5	// Modified by:
	6	// Created: 20.07.2003
	7	// RCS-ID: $Id$
	8	// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
	9	// License: wxWindows licence
	10	///////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	// for compilers that support precompilation, includes "wx.h".
	21	#include "wx/wxprec.h"
	22
	23	#ifdef __BORLANDC__
	24	#pragma hdrstop
	25	#endif
	26
	27	#include "wx/renderer.h"
	28
	29	#ifndef WX_PRECOMP
	30	#include "wx/window.h"
	31	#include "wx/dcclient.h"
	32	#include "wx/settings.h"
	33	#endif
	34
	35	#include <gtk/gtk.h>
	36	#include "wx/gtk/win_gtk.h"
	37
	38	// ----------------------------------------------------------------------------
	39	// wxRendererGTK: our wxRendererNative implementation
	40	// ----------------------------------------------------------------------------
	41
	42	class WXDLLEXPORT wxRendererGTK : public wxDelegateRendererNative
	43	{
	44	public:
	45	// draw the header control button (used by wxListCtrl)
	46	virtual int DrawHeaderButton(wxWindow *win,
	47	wxDC& dc,
	48	const wxRect& rect,
	49	int flags = 0,
	50	wxHeaderSortIconType sortArrow = wxHDR_SORT_ICON_NONE,
	51	wxHeaderButtonParams* params = NULL);
	52
	53	// draw the expanded/collapsed icon for a tree control item
	54	virtual void DrawTreeItemButton(wxWindow *win,
	55	wxDC& dc,
	56	const wxRect& rect,
	57	int flags = 0);
	58
	59	virtual void DrawSplitterBorder(wxWindow *win,
	60	wxDC& dc,
	61	const wxRect& rect,
	62	int flags = 0);
	63	virtual void DrawSplitterSash(wxWindow *win,
	64	wxDC& dc,
	65	const wxSize& size,
	66	wxCoord position,
	67	wxOrientation orient,
	68	int flags = 0);
	69
	70	virtual void DrawComboBoxDropButton(wxWindow *win,
	71	wxDC& dc,
	72	const wxRect& rect,
	73	int flags = 0);
	74
	75	virtual void DrawDropArrow(wxWindow *win,
	76	wxDC& dc,
	77	const wxRect& rect,
	78	int flags = 0);
	79
	80	virtual void DrawCheckBox(wxWindow *win,
	81	wxDC& dc,
	82	const wxRect& rect,
	83	int flags = 0);
	84
	85	virtual void DrawPushButton(wxWindow *win,
	86	wxDC& dc,
	87	const wxRect& rect,
	88	int flags = 0);
	89
	90	virtual void DrawItemSelectionRect(wxWindow *win,
	91	wxDC& dc,
	92	const wxRect& rect,
	93	int flags = 0);
	94
	95	virtual void DrawFocusRect(wxWindow* win, wxDC& dc, const wxRect& rect, int flags = 0);
	96
	97	virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win);
	98
	99	private:
	100	// FIXME: shouldn't we destroy these windows somewhere?
	101
	102	// used by DrawPushButton and DrawDropArrow
	103	static GtkWidget *GetButtonWidget();
	104
	105	// used by DrawTreeItemButton()
	106	static GtkWidget *GetTreeWidget();
	107
	108	// used by DrawCheckBox()
	109	static GtkWidget *GetCheckButtonWidget();
	110
	111	// Used by DrawHeaderButton
	112	static GtkWidget *GetHeaderButtonWidget();
	113	};
	114
	115	// ============================================================================
	116	// implementation
	117	// ============================================================================
	118
	119	/* static */
	120	wxRendererNative& wxRendererNative::GetDefault()
	121	{
	122	static wxRendererGTK s_rendererGTK;
	123
	124	return s_rendererGTK;
	125	}
	126
	127	// ----------------------------------------------------------------------------
	128	// helper functions
	129	// ----------------------------------------------------------------------------
	130
	131	GtkWidget *
	132	wxRendererGTK::GetButtonWidget()
	133	{
	134	static GtkWidget *s_button = NULL;
	135	static GtkWidget *s_window = NULL;
	136
	137	if ( !s_button )
	138	{
	139	s_window = gtk_window_new( GTK_WINDOW_POPUP );
	140	gtk_widget_realize( s_window );
	141	s_button = gtk_button_new();
	142	gtk_container_add( GTK_CONTAINER(s_window), s_button );
	143	gtk_widget_realize( s_button );
	144	}
	145
	146	return s_button;
	147	}
	148
	149	GtkWidget *
	150	wxRendererGTK::GetCheckButtonWidget()
	151	{
	152	static GtkWidget *s_button = NULL;
	153	static GtkWidget *s_window = NULL;
	154
	155	if ( !s_button )
	156	{
	157	s_window = gtk_window_new( GTK_WINDOW_POPUP );
	158	gtk_widget_realize( s_window );
	159	s_button = gtk_check_button_new();
	160	gtk_container_add( GTK_CONTAINER(s_window), s_button );
	161	gtk_widget_realize( s_button );
	162	}
	163
	164	return s_button;
	165	}
	166
	167	GtkWidget *
	168	wxRendererGTK::GetTreeWidget()
	169	{
	170	static GtkWidget *s_tree = NULL;
	171	static GtkWidget *s_window = NULL;
	172
	173	if ( !s_tree )
	174	{
	175	s_tree = gtk_tree_view_new();
	176	s_window = gtk_window_new( GTK_WINDOW_POPUP );
	177	gtk_widget_realize( s_window );
	178	gtk_container_add( GTK_CONTAINER(s_window), s_tree );
	179	gtk_widget_realize( s_tree );
	180	}
	181
	182	return s_tree;
	183	}
	184
	185
	186	// This one just gets the button used by the column header. Although it's
	187	// still a gtk_button the themes will typically differentiate and draw them
	188	// differently if the button is in a treeview.
	189	GtkWidget *
	190	wxRendererGTK::GetHeaderButtonWidget()
	191	{
	192	static GtkWidget *s_button = NULL;
	193
	194	if ( !s_button )
	195	{
	196	// Get the dummy tree widget, give it a column, and then use the
	197	// widget in the column header for the rendering code.
	198	GtkWidget* treewidget = GetTreeWidget();
	199	GtkTreeViewColumn* column = gtk_tree_view_column_new();
	200	gtk_tree_view_append_column(GTK_TREE_VIEW(treewidget), column);
	201	s_button = column->button;
	202	}
	203
	204	return s_button;
	205	}
	206
	207	// ----------------------------------------------------------------------------
	208	// list/tree controls drawing
	209	// ----------------------------------------------------------------------------
	210
	211	int
	212	wxRendererGTK::DrawHeaderButton(wxWindow *win,
	213	wxDC& dc,
	214	const wxRect& rect,
	215	int flags,
	216	wxHeaderSortIconType sortArrow,
	217	wxHeaderButtonParams* params)
	218	{
	219
	220	GtkWidget *button = GetHeaderButtonWidget();
	221
	222	GdkWindow* gdk_window = NULL;
	223	#if wxUSE_NEW_DC
	224	wxImplDC *impl = dc.GetImpl();
	225	wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
	226	if (gtk_impl)
	227	gdk_window = gtk_impl->GetGDKWindow();
	228	#else
	229	gdk_window = dc.GetGDKWindow();
	230	#endif
	231	wxASSERT_MSG( gdk_window,
	232	wxT("cannot use wxRendererNative on wxDC of this type") );
	233
	234	int x_diff = 0;
	235	if (win->GetLayoutDirection() == wxLayout_RightToLeft)
	236	x_diff = rect.width;
	237
	238	GtkStateType state = GTK_STATE_NORMAL;
	239	if (flags & wxCONTROL_DISABLED)
	240	state = GTK_STATE_INSENSITIVE;
	241	else
	242	{
	243	if (flags & wxCONTROL_CURRENT)
	244	state = GTK_STATE_PRELIGHT;
	245	}
	246
	247	gtk_paint_box
	248	(
	249	button->style,
	250	gdk_window,
	251	state,
	252	GTK_SHADOW_OUT,
	253	NULL,
	254	button,
	255	"button",
	256	dc.LogicalToDeviceX(rect.x) - x_diff, rect.y, rect.width, rect.height
	257	);
	258
	259	return DrawHeaderButtonContents(win, dc, rect, flags, sortArrow, params);
	260	}
	261
	262	// draw a ">" or "v" button
	263	void
	264	wxRendererGTK::DrawTreeItemButton(wxWindow* win,
	265	wxDC& dc, const wxRect& rect, int flags)
	266	{
	267	GtkWidget *tree = GetTreeWidget();
	268
	269	GdkWindow* gdk_window = NULL;
	270	#if wxUSE_NEW_DC
	271	wxImplDC *impl = dc.GetImpl();
	272	wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
	273	if (gtk_impl)
	274	gdk_window = gtk_impl->GetGDKWindow();
	275	#else
	276	gdk_window = dc.GetGDKWindow();
	277	#endif
	278	wxASSERT_MSG( gdk_window,
	279	wxT("cannot use wxRendererNative on wxDC of this type") );
	280
	281	GtkStateType state;
	282	if ( flags & wxCONTROL_CURRENT )
	283	state = GTK_STATE_PRELIGHT;
	284	else
	285	state = GTK_STATE_NORMAL;
	286
	287	int x_diff = 0;
	288	if (win->GetLayoutDirection() == wxLayout_RightToLeft)
	289	x_diff = rect.width;
	290
	291	// VZ: I don't know how to get the size of the expander so as to centre it
	292	// in the given rectangle, +2/3 below is just what looks good here...
	293	gtk_paint_expander
	294	(
	295	tree->style,
	296	gdk_window,
	297	state,
	298	NULL,
	299	tree,
	300	"treeview",
	301	dc.LogicalToDeviceX(rect.x) + 6 - x_diff,
	302	dc.LogicalToDeviceY(rect.y) + 3,
	303	flags & wxCONTROL_EXPANDED ? GTK_EXPANDER_EXPANDED
	304	: GTK_EXPANDER_COLLAPSED
	305	);
	306	}
	307
	308
	309	// ----------------------------------------------------------------------------
	310	// splitter sash drawing
	311	// ----------------------------------------------------------------------------
	312
	313	static int GetGtkSplitterFullSize()
	314	{
	315	static GtkWidget *s_paned = NULL;
	316	if (s_paned == NULL)
	317	s_paned = gtk_vpaned_new();
	318
	319	gint handle_size;
	320	gtk_widget_style_get (s_paned, "handle_size", &handle_size, NULL);
	321
	322	return handle_size;
	323	}
	324
	325	wxSplitterRenderParams
	326	wxRendererGTK::GetSplitterParams(const wxWindow *WXUNUSED(win))
	327	{
	328	// we don't draw any border, hence 0 for the second field
	329	return wxSplitterRenderParams
	330	(
	331	GetGtkSplitterFullSize(),
	332	0,
	333	true // hot sensitive
	334	);
	335	}
	336
	337	void
	338	wxRendererGTK::DrawSplitterBorder(wxWindow * WXUNUSED(win),
	339	wxDC& WXUNUSED(dc),
	340	const wxRect& WXUNUSED(rect),
	341	int WXUNUSED(flags))
	342	{
	343	// nothing to do
	344	}
	345
	346	void
	347	wxRendererGTK::DrawSplitterSash(wxWindow *win,
	348	wxDC& dc,
	349	const wxSize& size,
	350	wxCoord position,
	351	wxOrientation orient,
	352	int flags)
	353	{
	354	if ( !win->m_wxwindow->window )
	355	{
	356	// window not realized yet
	357	return;
	358	}
	359
	360	GdkWindow* gdk_window = NULL;
	361	#if wxUSE_NEW_DC
	362	wxImplDC *impl = dc.GetImpl();
	363	wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
	364	if (gtk_impl)
	365	gdk_window = gtk_impl->GetGDKWindow();
	366	#else
	367	gdk_window = dc.GetGDKWindow();
	368	#endif
	369	wxASSERT_MSG( gdk_window,
	370	wxT("cannot use wxRendererNative on wxDC of this type") );
	371
	372	wxCoord full_size = GetGtkSplitterFullSize();
	373
	374	// are we drawing vertical or horizontal splitter?
	375	const bool isVert = orient == wxVERTICAL;
	376
	377	GdkRectangle rect;
	378
	379	if ( isVert )
	380	{
	381	rect.x = position;
	382	rect.y = 0;
	383	rect.width = full_size;
	384	rect.height = size.y;
	385	}
	386	else // horz
	387	{
	388	rect.x = 0;
	389	rect.y = position;
	390	rect.height = full_size;
	391	rect.width = size.x;
	392	}
	393
	394	int x_diff = 0;
	395	if (win->GetLayoutDirection() == wxLayout_RightToLeft)
	396	x_diff = rect.width;
	397
	398	gtk_paint_handle
	399	(
	400	win->m_wxwindow->style,
	401	gdk_window,
	402	flags & wxCONTROL_CURRENT ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL,
	403	GTK_SHADOW_NONE,
	404	NULL /* no clipping */,
	405	win->m_wxwindow,
	406	"paned",
	407	dc.LogicalToDeviceX(rect.x) - x_diff,
	408	dc.LogicalToDeviceY(rect.y),
	409	rect.width,
	410	rect.height,
	411	isVert ? GTK_ORIENTATION_VERTICAL : GTK_ORIENTATION_HORIZONTAL
	412	);
	413	}
	414
	415	void
	416	wxRendererGTK::DrawDropArrow(wxWindow *WXUNUSED(win),
	417	wxDC& dc,
	418	const wxRect& rect,
	419	int flags)
	420	{
	421	GtkWidget *button = GetButtonWidget();
	422
	423	// If we give GTK_PIZZA(win->m_wxwindow)->bin_window as
	424	// a window for gtk_paint_xxx function, then it won't
	425	// work for wxMemoryDC. So that is why we assume wxDC
	426	// is wxWindowDC (wxClientDC, wxMemoryDC and wxPaintDC
	427	// are derived from it) and use its m_window.
	428	GdkWindow* gdk_window = NULL;
	429	#if wxUSE_NEW_DC
	430	wxImplDC *impl = dc.GetImpl();
	431	wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
	432	if (gtk_impl)
	433	gdk_window = gtk_impl->GetGDKWindow();
	434	#else
	435	gdk_window = dc.GetGDKWindow();
	436	#endif
	437	wxASSERT_MSG( gdk_window,
	438	wxT("cannot use wxRendererNative on wxDC of this type") );
	439
	440	// draw arrow so that there is even space horizontally
	441	// on both sides
	442	int arrowX = rect.width/4 + 1;
	443	int arrowWidth = rect.width - (arrowX*2);
	444
	445	// scale arrow's height accoording to the width
	446	int arrowHeight = rect.width/3;
	447	int arrowY = (rect.height-arrowHeight)/2 +
	448	((rect.height-arrowHeight) & 1);
	449
	450	GtkStateType state;
	451
	452	if ( flags & wxCONTROL_PRESSED )
	453	state = GTK_STATE_ACTIVE;
	454	else if ( flags & wxCONTROL_DISABLED )
	455	state = GTK_STATE_INSENSITIVE;
	456	else if ( flags & wxCONTROL_CURRENT )
	457	state = GTK_STATE_PRELIGHT;
	458	else
	459	state = GTK_STATE_NORMAL;
	460
	461	// draw arrow on button
	462	gtk_paint_arrow
	463	(
	464	button->style,
	465	gdk_window,
	466	state,
	467	flags & wxCONTROL_PRESSED ? GTK_SHADOW_IN : GTK_SHADOW_OUT,
	468	NULL,
	469	button,
	470	"arrow",
	471	GTK_ARROW_DOWN,
	472	FALSE,
	473	rect.x + arrowX,
	474	rect.y + arrowY,
	475	arrowWidth,
	476	arrowHeight
	477	);
	478	}
	479
	480	void
	481	wxRendererGTK::DrawComboBoxDropButton(wxWindow *win,
	482	wxDC& dc,
	483	const wxRect& rect,
	484	int flags)
	485	{
	486	DrawPushButton(win,dc,rect,flags);
	487	DrawDropArrow(win,dc,rect);
	488	}
	489
	490	void
	491	wxRendererGTK::DrawCheckBox(wxWindow *WXUNUSED(win),
	492	wxDC& dc,
	493	const wxRect& rect,
	494	int flags )
	495	{
	496	GtkWidget *button = GetCheckButtonWidget();
	497
	498	GdkWindow* gdk_window = NULL;
	499	#if wxUSE_NEW_DC
	500	wxImplDC *impl = dc.GetImpl();
	501	wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
	502	if (gtk_impl)
	503	gdk_window = gtk_impl->GetGDKWindow();
	504	#else
	505	gdk_window = dc.GetGDKWindow();
	506	#endif
	507	wxASSERT_MSG( gdk_window,
	508	wxT("cannot use wxRendererNative on wxDC of this type") );
	509
	510	GtkStateType state;
	511
	512	if ( flags & wxCONTROL_PRESSED )
	513	state = GTK_STATE_ACTIVE;
	514	else if ( flags & wxCONTROL_DISABLED )
	515	state = GTK_STATE_INSENSITIVE;
	516	else if ( flags & wxCONTROL_CURRENT )
	517	state = GTK_STATE_PRELIGHT;
	518	else
	519	state = GTK_STATE_NORMAL;
	520
	521	gtk_paint_check
	522	(
	523	button->style,
	524	gdk_window,
	525	state,
	526	flags & wxCONTROL_CHECKED ? GTK_SHADOW_IN : GTK_SHADOW_OUT,
	527	NULL,
	528	button,
	529	"cellcheck",
	530	dc.LogicalToDeviceX(rect.x)+2,
	531	dc.LogicalToDeviceY(rect.y)+3,
	532	13, 13
	533	);
	534	}
	535
	536	void
	537	wxRendererGTK::DrawPushButton(wxWindow *WXUNUSED(win),
	538	wxDC& dc,
	539	const wxRect& rect,
	540	int flags)
	541	{
	542	GtkWidget *button = GetButtonWidget();
	543
	544	GdkWindow* gdk_window = NULL;
	545	#if wxUSE_NEW_DC
	546	wxImplDC *impl = dc.GetImpl();
	547	wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
	548	if (gtk_impl)
	549	gdk_window = gtk_impl->GetGDKWindow();
	550	#else
	551	gdk_window = dc.GetGDKWindow();
	552	#endif
	553	wxASSERT_MSG( gdk_window,
	554	wxT("cannot use wxRendererNative on wxDC of this type") );
	555
	556	// draw button
	557	GtkStateType state;
	558
	559	if ( flags & wxCONTROL_PRESSED )
	560	state = GTK_STATE_ACTIVE;
	561	else if ( flags & wxCONTROL_DISABLED )
	562	state = GTK_STATE_INSENSITIVE;
	563	else if ( flags & wxCONTROL_CURRENT )
	564	state = GTK_STATE_PRELIGHT;
	565	else
	566	state = GTK_STATE_NORMAL;
	567
	568	gtk_paint_box
	569	(
	570	button->style,
	571	gdk_window,
	572	state,
	573	flags & wxCONTROL_PRESSED ? GTK_SHADOW_IN : GTK_SHADOW_OUT,
	574	NULL,
	575	button,
	576	"button",
	577	rect.x, rect.y, rect.width, rect.height
	578	);
	579	}
	580
	581	void
	582	wxRendererGTK::DrawItemSelectionRect(wxWindow *win,
	583	wxDC& dc,
	584	const wxRect& rect,
	585	int flags )
	586	{
	587	GdkWindow* gdk_window = NULL;
	588	#if wxUSE_NEW_DC
	589	wxImplDC *impl = dc.GetImpl();
	590	wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
	591	if (gtk_impl)
	592	gdk_window = gtk_impl->GetGDKWindow();
	593	#else
	594	gdk_window = dc.GetGDKWindow();
	595	#endif
	596	wxASSERT_MSG( gdk_window,
	597	wxT("cannot use wxRendererNative on wxDC of this type") );
	598
	599	int x_diff = 0;
	600	if (win->GetLayoutDirection() == wxLayout_RightToLeft)
	601	x_diff = rect.width;
	602
	603	GtkStateType state;
	604	if (flags & wxCONTROL_SELECTED)
	605	{
	606	// the wxCONTROL_FOCUSED state is deduced
	607	// directly from the m_wxwindow by GTK+
	608	state = GTK_STATE_SELECTED;
	609
	610	gtk_paint_flat_box( win->m_widget->style,
	611	gdk_window,
	612	state,
	613	GTK_SHADOW_NONE,
	614	NULL,
	615	win->m_wxwindow,
	616	"cell_even",
	617	dc.LogicalToDeviceX(rect.x) - x_diff,
	618	dc.LogicalToDeviceY(rect.y),
	619	rect.width,
	620	rect.height );
	621	}
	622	else // !wxCONTROL_SELECTED
	623	{
	624	state = GTK_STATE_NORMAL;
	625	}
	626
	627	if ((flags & wxCONTROL_CURRENT) && (flags & wxCONTROL_FOCUSED))
	628	{
	629	gtk_paint_focus( win->m_widget->style,
	630	gdk_window,
	631	state,
	632	NULL,
	633	win->m_wxwindow,
	634	"treeview",
	635	dc.LogicalToDeviceX(rect.x),
	636	dc.LogicalToDeviceY(rect.y),
	637	rect.width,
	638	rect.height );
	639	}
	640	}
	641
	642	void wxRendererGTK::DrawFocusRect(wxWindow* win, wxDC& dc, const wxRect& rect, int flags)
	643	{
	644	GdkWindow* gdk_window = NULL;
	645	#if wxUSE_NEW_DC
	646	wxImplDC *impl = dc.GetImpl();
	647	wxGTKImplDC *gtk_impl = wxDynamicCast( impl, wxGTKImplDC );
	648	if (gtk_impl)
	649	gdk_window = gtk_impl->GetGDKWindow();
	650	#else
	651	gdk_window = dc.GetGDKWindow();
	652	#endif
	653	wxASSERT_MSG( gdk_window,
	654	wxT("cannot use wxRendererNative on wxDC of this type") );
	655
	656	GtkStateType state;
	657	if (flags & wxCONTROL_SELECTED)
	658	state = GTK_STATE_SELECTED;
	659	else
	660	state = GTK_STATE_NORMAL;
	661
	662	gtk_paint_focus( win->m_widget->style,
	663	gdk_window,
	664	state,
	665	NULL,
	666	win->m_wxwindow,
	667	NULL,
	668	dc.LogicalToDeviceX(rect.x),
	669	dc.LogicalToDeviceY(rect.y),
	670	rect.width,
	671	rect.height );
	672	}