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Added wxCanvas prototype and sample

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8205 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling 2000-08-29 08:54:17 +00:00
parent 5a7faf1e02
commit 6a2c187404
10 changed files with 724 additions and 13 deletions
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6
contrib/configure vendored
View File

@ -818,6 +818,7 @@ trap 'rm -fr `echo "
src/mmedia/Makefile
src/stc/Makefile
src/xml/Makefile
src/canvas/Makefile
src/gizmos/Makefile
samples/Makefile
samples/mmedia/Makefile
@ -825,6 +826,8 @@ trap 'rm -fr `echo "
samples/ogl/ogledit/Makefile
samples/ogl/studio/Makefile
samples/stc/Makefile
samples/canvas/Makefile
samples/canvas/test/Makefile
samples/gizmos/Makefile
samples/gizmos/multicell/Makefile
samples/gizmos/splittree/Makefile
@ -915,6 +918,7 @@ CONFIG_FILES=\${CONFIG_FILES-"Makefile
src/mmedia/Makefile
src/stc/Makefile
src/xml/Makefile
src/canvas/Makefile
src/gizmos/Makefile
samples/Makefile
samples/mmedia/Makefile
@ -922,6 +926,8 @@ CONFIG_FILES=\${CONFIG_FILES-"Makefile
samples/ogl/ogledit/Makefile
samples/ogl/studio/Makefile
samples/stc/Makefile
samples/canvas/Makefile
samples/canvas/test/Makefile
samples/gizmos/Makefile
samples/gizmos/multicell/Makefile
samples/gizmos/splittree/Makefile

3
contrib/configure.in
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@ -43,6 +43,7 @@ AC_OUTPUT([
src/mmedia/Makefile
src/stc/Makefile
src/xml/Makefile
src/canvas/Makefile
src/gizmos/Makefile
samples/Makefile
samples/mmedia/Makefile
@ -50,6 +51,8 @@ AC_OUTPUT([
samples/ogl/ogledit/Makefile
samples/ogl/studio/Makefile
samples/stc/Makefile
samples/canvas/Makefile
samples/canvas/test/Makefile
samples/gizmos/Makefile
samples/gizmos/multicell/Makefile
samples/gizmos/splittree/Makefile

128
contrib/include/wx/canvas/canvas.h Normal file
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@ -0,0 +1,128 @@
/////////////////////////////////////////////////////////////////////////////
// Name: canvas.h
// Author: Robert Roebling
// Created: XX/XX/XX
// Copyright: 2000 (c) Robert Roebling
// Licence: wxWindows Licence
/////////////////////////////////////////////////////////////////////////////
#ifndef __WXCANVAS_H__
#define __WXCANVAS_H__
#ifdef __GNUG__
#pragma interface "canvas.cpp"
#endif
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#include "wx/image.h"
#include "wx/txtstrm.h"
class wxCanvas;
// WDR: class declarations
//----------------------------------------------------------------------------
// wxCanvasObject
//----------------------------------------------------------------------------
class wxCanvasObject: public wxEvtHandler
{
public:
wxCanvasObject( int x, int y, int width, int height );
virtual void Move( int x, int y );
virtual void Render( int clip_x, int clip_y, int clip_width, int clip_height );
virtual void WriteSVG( wxTextOutputStream &stream );
wxCanvas *GetOwner() { return m_owner; }
void SetOwner( wxCanvas *owner ) { m_owner = owner; }
bool IsControl() { return m_isControl; }
bool IsVector() { return m_isVector; }
bool IsImage() { return m_isImage; }
inline int GetX() { return m_area.x; }
inline int GetY() { return m_area.y; }
inline int GetWidth() { return m_area.width; }
inline int GetHeight() { return m_area.height; }
protected:
wxCanvas *m_owner;
bool m_isControl;
bool m_isVector;
bool m_isImage;
wxRect m_area;
friend class wxCanvas;
};
//----------------------------------------------------------------------------
// wxCanvasImage
//----------------------------------------------------------------------------
class wxCanvasImage: public wxCanvasObject
{
public:
wxCanvasImage( const wxImage &image, int x, int y );
virtual void Render( int clip_x, int clip_y, int clip_width, int clip_height );
virtual void WriteSVG( wxTextOutputStream &stream );
private:
wxImage m_image;
};
//----------------------------------------------------------------------------
// wxCanvas
//----------------------------------------------------------------------------
class wxCanvas: public wxScrolledWindow
{
public:
// constructors and destructors
wxCanvas( wxWindow *parent, wxWindowID id = -1,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxScrolledWindowStyle );
virtual ~wxCanvas();
virtual void SetArea( int width, int height );
virtual void Update( int x, int y, int width, int height );
virtual void UpdateNow();
virtual void Prepend( wxCanvasObject* obj );
virtual void Append( wxCanvasObject* obj );
virtual void Insert( size_t before, wxCanvasObject* obj );
virtual void Remove( wxCanvasObject* obj );
wxImage *GetBuffer() { return &m_buffer; }
bool NeedUpdate() { return m_needUpdate; }
private:
wxImage m_buffer;
bool m_needUpdate;
wxList m_updateRects;
wxList m_objects;
friend class wxCanvasObject;
private:
void OnChar( wxKeyEvent &event );
void OnPaint( wxPaintEvent &event );
void OnMouse( wxMouseEvent &event );
void OnSize( wxSizeEvent &event );
void OnIdle( wxIdleEvent &event );
void OnSetFocus( wxFocusEvent &event );
void OnKillFocus( wxFocusEvent &event );
private:
DECLARE_CLASS(wxCanvas)
DECLARE_EVENT_TABLE()
};
#endif
// WXCANVAS

2
contrib/samples/Makefile.in
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@ -1,6 +1,6 @@
# $Id$
CONTRIB_SAMPLES=mmedia ogl stc gizmos
CONTRIB_SAMPLES=mmedia ogl stc gizmos canvas
all:
@for d in $(CONTRIB_SAMPLES); do (cd $$d && $(MAKE)); done

10
contrib/samples/canvas/Makefile.in Normal file
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@ -0,0 +1,10 @@
# $Id$
CONTRIB_SAMPLES=test
all:
@for d in $(CONTRIB_SAMPLES); do (cd $$d && $(MAKE)); done
clean:
@for d in $(CONTRIB_SAMPLES); do (cd $$d && $(MAKE) clean); done

23
contrib/samples/canvas/test/Makefile.in Normal file
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@ -0,0 +1,23 @@
#
# File: Makefile.in
# Author: Julian Smart
# Created: 2000
# Updated:
# Copyright: (c) 2000 Julian Smart
#
# "%W% %G%"
#
# Makefile for the multicell example (UNIX).
top_srcdir = @top_srcdir@/..
top_builddir = ../../../..
program_dir = contrib/samples/canvas/test
PROGRAM=test
OBJECTS=test.o
APPEXTRALIBS=$(top_builddir)/lib/libcanvas.@WX_TARGET_LIBRARY_TYPE@
APPEXTRADEFS=-I$(top_srcdir)/contrib/include
include $(top_builddir)/src/makeprog.env

42
contrib/samples/canvas/test/smile.xpm Normal file
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@ -0,0 +1,42 @@
/* XPM */
static char * smile_xpm[] = {
/* width height ncolors chars_per_pixel */
"32 32 4 1",
/* colors */
" s None c None",
". c #000000",
"+ c #ff0000",
"@ c #ffff00",
/* pixels */
" ........ ",
" ...@@@@@@@@... ",
" ..@@@@@@@@@@@@@@.. ",
" ..@@@@@@@@@@@@@@@@.. ",
" .@@@@@@@@@@@@@@@@@@@@. ",
" .@@@@@@@@@@@@@@@@@@@@@@. ",
" .@@@@@@@@@@@@@@@@@@@@@@@@. ",
" ..@@@@@@@@@@@@@@@@@@@@@@@@.. ",
" .@@@@@@@@ @@@@@@ @@@@@@@@. ",
" .@@@@@@@@ @@@@ @@@@@@@@. ",
" .@@@@@@@@ @@@@ @@@@@@@@. ",
" .@@@@@@@@ @@@@ @@@@@@@@. ",
".@@@@@@@@@ @@@@ @@@@@@@@@.",
".@@@@@@@@@ @@@@ @@@@@@@@@.",
".@@@@@@@@@@ @@@@@@ @@@@@@@@@@.",
".@@@@@@@.@@@@@@@@@@@@@@.@@@@@@@.",
".@@@@@@@.@@@@@@@@@@@@@@.@@@@@@@.",
".@@@@@@.@@@@@@@@@@@@@@@@.@@@@@@.",
".@@@....@@@@@@@@@@@@@@@@....@@@.",
".@@@@@@@.@@@@@@@@@@@@@@.@@@@@@@.",
" .@@@@@@@.@@@@@@@@@@@@.@@@@@@@. ",
" .@@@@@@@..@@@@@@@@@@..@@@@@@@. ",
" .@@@@@@@@...@@@@@@...@@@@@@@@. ",
" .@@@@@@@@.+......+.@@@@@@@@. ",
" ..@@@@@@@@.++++++.@@@@@@@@.. ",
" .@@@@@@@@@.++++.@@@@@@@@@. ",
" .@@@@@@@@@....@@@@@@@@@. ",
" .@@@@@@@@@@@@@@@@@@@@. ",
" ..@@@@@@@@@@@@@@@@.. ",
" ..@@@@@@@@@@@@@@.. ",
" ...@@@@@@@@... ",
" ........ "};

152
contrib/samples/canvas/test/test.cpp Normal file
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@ -0,0 +1,152 @@
/*
* Program: canvas
*
* Author: Robert Roebling
*
* Copyright: (C) 1998, Robert Roebling
*
*/
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#include <wx/image.h>
#include <wx/file.h>
#include <wx/timer.h>
#include "smile.xpm"
#include "wx/canvas/canvas.h"
// derived classes
class MyFrame;
class MyApp;
// MyFrame
class MyFrame: public wxFrame
{
public:
MyFrame();
~MyFrame();
void OnAbout( wxCommandEvent &event );
void OnNewFrame( wxCommandEvent &event );
void OnQuit( wxCommandEvent &event );
void OnTimer( wxTimerEvent &event );
wxCanvas *m_canvas;
wxCanvasObject *m_co;
wxTimer *m_timer;
private:
DECLARE_DYNAMIC_CLASS(MyFrame)
DECLARE_EVENT_TABLE()
};
// MyApp
class MyApp: public wxApp
{
public:
virtual bool OnInit();
};
// main program
IMPLEMENT_APP(MyApp)
// MyFrame
const int ID_QUIT = 108;
const int ID_ABOUT = 109;
IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame )
BEGIN_EVENT_TABLE(MyFrame,wxFrame)
EVT_MENU (ID_ABOUT, MyFrame::OnAbout)
EVT_MENU (ID_QUIT, MyFrame::OnQuit)
EVT_TIMER (-1, MyFrame::OnTimer)
END_EVENT_TABLE()
MyFrame::MyFrame()
: wxFrame( (wxFrame *)NULL, -1, "wxCanvas sample",
wxPoint(20,20), wxSize(470,360) )
{
wxMenu *file_menu = new wxMenu();
file_menu->Append( ID_ABOUT, "&About...");
file_menu->AppendSeparator();
file_menu->Append( ID_QUIT, "E&xit");
wxMenuBar *menu_bar = new wxMenuBar();
menu_bar->Append(file_menu, "&File");
SetMenuBar( menu_bar );
CreateStatusBar(2);
int widths[] = { -1, 100 };
SetStatusWidths( 2, widths );
m_canvas = new wxCanvas( this, -1, wxPoint(0,0), wxSize(10,10) );
m_canvas->SetArea( 400, 600 );
wxBitmap bitmap( smile_xpm );
wxImage image( bitmap );
m_co = new wxCanvasImage( image, 10, 50 );
m_canvas->Append( m_co );
m_canvas->Append( new wxCanvasImage( image, 80, 50 ) );
m_timer = new wxTimer( this );
m_timer->Start( 150, FALSE );
}
MyFrame::~MyFrame()
{
delete m_timer;
}
void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
{
Close( TRUE );
}
void MyFrame::OnTimer( wxTimerEvent &WXUNUSED(event) )
{
m_co->Move( m_co->GetX()+1, m_co->GetY() );
wxWakeUpIdle();
}
void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
{
(void)wxMessageBox( "wxCanvas demo\n"
"Robert Roebling (c) 1998,2000",
"About wxCanvas Demo", wxICON_INFORMATION | wxOK );
}
//-----------------------------------------------------------------------------
// MyApp
//-----------------------------------------------------------------------------
bool MyApp::OnInit()
{
#if wxUSE_LIBPNG
wxImage::AddHandler( new wxPNGHandler );
#endif
wxFrame *frame = new MyFrame();
frame->Show( TRUE );
return TRUE;
}

23
contrib/src/canvas/Makefile.in Normal file
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@ -0,0 +1,23 @@
# $Id$
top_srcdir = @top_srcdir@/..
top_builddir = ../../..
libsrc_dir = contrib/src/canvas
TARGET_LIBNAME=libcanvas
LIBVERSION_CURRENT=1
LIBVERSION_REVISION=0
LIBVERSION_AGE=0
HEADER_PATH=$(top_srcdir)/contrib/include/wx
HEADER_SUBDIR=canvas
HEADERS=canvas.h
OBJECTS=canvas.o
APPEXTRADEFS=-I$(top_srcdir)/contrib/include
include $(top_builddir)/src/makelib.env

324
contrib/src/canvas/canvas.cpp Normal file
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@ -0,0 +1,324 @@
/////////////////////////////////////////////////////////////////////////////
// Name: canvas.cpp
// Author: Robert Roebling
// Created: XX/XX/XX
// Copyright: 2000 (c) Robert Roebling
// Licence: wxWindows Licence
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation "canvas.cpp"
#endif
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#include "wx/canvas/canvas.h"
#ifdef __WXGTK__
#include <gtk/gtk.h>
#include <gdk/gdkrgb.h>
#include "wx/gtk/win_gtk.h"
#endif
// WDR: class implementations
//----------------------------------------------------------------------------
// wxCanvasObject
//----------------------------------------------------------------------------
wxCanvasObject::wxCanvasObject( int x, int y, int width, int height )
{
m_owner = NULL;
m_area.x = x;
m_area.y = y;
m_area.width = width;
m_area.height = height;
m_isControl = FALSE;
m_isVector = FALSE;
m_isImage = FALSE;
}
void wxCanvasObject::Move( int x, int y )
{
int old_x = m_area.x;
int old_y = m_area.y;
m_area.x = x;
m_area.y = y;
if (!m_isControl)
{
// TODO: sometimes faster to merge into 1 Update or
// to break up into four
m_owner->Update( old_x, old_y, m_area.width, m_area.height );
m_owner->Update( x, y, m_area.width, m_area.height );
}
}
void wxCanvasObject::WriteSVG( wxTextOutputStream &stream )
{
}
void wxCanvasObject::Render( int clip_x, int clip_y, int clip_width, int clip_height )
{
}
//----------------------------------------------------------------------------
// wxCanvasImage
//----------------------------------------------------------------------------
wxCanvasImage::wxCanvasImage( const wxImage &image, int x, int y )
: wxCanvasObject( x, y, image.GetWidth(), image.GetHeight() )
{
m_image = image;
m_isImage = TRUE;
}
void wxCanvasImage::Render( int clip_x, int clip_y, int clip_width, int clip_height )
{
m_owner->GetBuffer()->Paste( m_image, m_area.x, m_area.y );
}
void wxCanvasImage::WriteSVG( wxTextOutputStream &stream )
{
// no idea
}
//----------------------------------------------------------------------------
// wxCanvas
//----------------------------------------------------------------------------
IMPLEMENT_CLASS(wxCanvas,wxScrolledWindow)
BEGIN_EVENT_TABLE(wxCanvas,wxScrolledWindow)
EVT_CHAR( wxCanvas::OnChar )
EVT_PAINT( wxCanvas::OnPaint )
EVT_SIZE( wxCanvas::OnSize )
EVT_IDLE( wxCanvas::OnIdle )
EVT_MOUSE_EVENTS( wxCanvas::OnMouse )
EVT_SET_FOCUS( wxCanvas::OnSetFocus )
EVT_KILL_FOCUS( wxCanvas::OnKillFocus )
END_EVENT_TABLE()
wxCanvas::wxCanvas( wxWindow *parent, wxWindowID id,
const wxPoint &position, const wxSize& size, long style ) :
wxScrolledWindow( parent, id, position, size, style )
{
m_needUpdate = FALSE;
m_objects.DeleteContents( TRUE );
}
wxCanvas::~wxCanvas()
{
wxNode *node = m_updateRects.First();
while (node)
{
wxRect *rect = (wxRect*) node->Data();
delete rect;
m_updateRects.DeleteNode( node );
node = m_updateRects.First();
}
}
void wxCanvas::SetArea( int width, int height )
{
m_buffer = wxImage( width, height );
SetScrollbars( 10, 10, width/10, height/10 );
}
void wxCanvas::Update( int x, int y, int width, int height )
{
m_needUpdate = TRUE;
m_updateRects.Append(
(wxObject*) new wxRect( x,y,width,height ) );
// speed up with direct access
int xx,yy,ww,hh;
for (yy = y; yy < y+height; yy++)
for (xx = x; xx < x+width; xx++)
m_buffer.SetRGB( xx, yy, 0, 0, 0 );
wxNode *node = m_objects.First();
while (node)
{
wxCanvasObject *obj = (wxCanvasObject*) node->Data();
xx = obj->GetX();
yy = obj->GetY();
ww = obj->GetWidth();
hh = obj->GetHeight();
// if intersect
{
obj->Render( x, y, width, height );
}
node = node->Next();
}
}
void wxCanvas::UpdateNow()
{
if (!m_needUpdate) return;
wxClientDC dc( this );
PrepareDC( dc );
wxNode *node = m_updateRects.First();
while (node)
{
wxRect *rect = (wxRect*) node->Data();
wxImage sub_image( m_buffer.GetSubImage( *rect ) );
// DirectDraw here, please
#ifdef __WXGTK__
int bpp = wxDisplayDepth();
if (bpp > 8)
{
// the init code is doubled in wxImage
static bool s_hasInitialized = FALSE;
if (!s_hasInitialized)
{
gdk_rgb_init();
s_hasInitialized = TRUE;
}
int x = rect->x;
int y = rect->y;
CalcScrolledPosition( x, y, &x, &y );
gdk_draw_rgb_image( GTK_PIZZA(m_wxwindow)->bin_window,
m_wxwindow->style->black_gc,
x, y,
sub_image.GetWidth(), sub_image.GetHeight(),
GDK_RGB_DITHER_NONE,
sub_image.GetData(),
sub_image.GetWidth()*3 );
}
else
{
wxBitmap bitmap( sub_image.ConvertToBitmap() );
dc.DrawBitmap( bitmap, rect->x, rect->y );
}
#endif
#ifndef __WXGTK__
wxBitmap bitmap( sub_image.ConvertToBitmap() );
dc.DrawBitmap( bitmap, rect->x, rect->y );
#endif
delete rect;
m_updateRects.DeleteNode( node );
node = m_updateRects.First();
}
}
void wxCanvas::Prepend( wxCanvasObject* obj )
{
m_objects.Insert( obj );
obj->SetOwner( this );
if (!obj->IsControl())
Update( obj->GetX(), obj->GetY(), obj->GetWidth(), obj->GetHeight() );
}
void wxCanvas::Append( wxCanvasObject* obj )
{
m_objects.Append( obj );
obj->SetOwner( this );
if (!obj->IsControl())
Update( obj->GetX(), obj->GetY(), obj->GetWidth(), obj->GetHeight() );
}
void wxCanvas::Insert( size_t before, wxCanvasObject* obj )
{
m_objects.Insert( before, obj );
obj->SetOwner( this );
if (!obj->IsControl())
Update( obj->GetX(), obj->GetY(), obj->GetWidth(), obj->GetHeight() );
}
void wxCanvas::Remove( wxCanvasObject* obj )
{
int x = obj->GetX();
int y = obj->GetY();
int w = obj->GetWidth();
int h = obj->GetHeight();
bool ic = obj->IsControl();
m_objects.DeleteObject( obj );
if (!ic)
Update( x, y, w, h );
}
void wxCanvas::OnPaint(wxPaintEvent &event)
{
#ifdef __WXMSW__
wxPaintDC dc(this);
#endif
m_needUpdate = TRUE;
wxRegionIterator it( GetUpdateRegion() );
while (it)
{
int x = it.GetX();
int y = it.GetY();
CalcUnscrolledPosition( x, y, &x, &y );
int w = it.GetWidth();
int h = it.GetHeight();
if (x + w > m_buffer.GetWidth())
w = m_buffer.GetWidth()-x;
if (y + h > m_buffer.GetHeight())
h = m_buffer.GetHeight()-y;
m_updateRects.Append( (wxObject*) new wxRect( x, y, w, h ) );
it++;
}
}
void wxCanvas::OnMouse(wxMouseEvent &event)
{
// Propagate to objects here
}
void wxCanvas::OnSize(wxSizeEvent &event)
{
event.Skip();
}
void wxCanvas::OnIdle(wxIdleEvent &event)
{
UpdateNow();
event.Skip();
}
void wxCanvas::OnSetFocus(wxFocusEvent &event)
{
}
void wxCanvas::OnKillFocus(wxFocusEvent &event)
{
}
void wxCanvas::OnChar(wxKeyEvent &event)
{
event.Skip();
}