зеркало из https://github.com/mozilla/pjs.git
Added GetImageDimensions() so clients can tell the size of the image. Will fail gracefully if that info is not present.
This commit is contained in:
pinkerton%netscape.com
Родитель
feb9491e09
Коммит
351524239e
|
|
@ -1,166 +0,0 @@
|
|||
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
||||
*
|
||||
* The contents of this file are subject to the Netscape Public License
|
||||
* Version 1.0 (the "NPL"); you may not use this file except in
|
||||
* compliance with the NPL. You may obtain a copy of the NPL at
|
||||
* http://www.mozilla.org/NPL/
|
||||
*
|
||||
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
||||
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
||||
* for the specific language governing rights and limitations under the
|
||||
* NPL.
|
||||
*
|
||||
* The Initial Developer of this code under the NPL is Netscape
|
||||
* Communications Corporation. Portions created by Netscape are
|
||||
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
||||
* Reserved.
|
||||
*/
|
||||
|
||||
//
|
||||
// CImageIconMixin
|
||||
// Mike Pinkerton, Netscape Communications
|
||||
//
|
||||
// When you have an object that wants to draw itself using an image (gif, jpeg, etc),
|
||||
// just mix this class in and call the appropriate routines when you want to draw.
|
||||
// Most importantly, this handles cleaning up when the object goes away if it has
|
||||
// made a request for an image that has yet to arrive.
|
||||
//
|
||||
|
||||
|
||||
#include "CImageIconMixin.h"
|
||||
|
||||
|
||||
CImageIconMixin :: CImageIconMixin ( const string & inURL )
|
||||
: mURL(inURL)
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// destructor
|
||||
//
|
||||
// If we made a request to load an image and we have yet to display it, we get a
|
||||
// message when the image is ready to draw. However, if we're going away, it would
|
||||
// be bad for us to get that message at some point in the future. Make sure we
|
||||
// are off the listener list for the image cache.
|
||||
//
|
||||
CImageIconMixin :: ~CImageIconMixin ( )
|
||||
{
|
||||
gImageCache().ListenerGoingAway ( mURL, this );
|
||||
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// ListenToMessage
|
||||
//
|
||||
// Listen for the update of image and then
|
||||
//
|
||||
void
|
||||
CImageIconMixin :: ListenToMessage ( const MessageT inMessage, void* ioData )
|
||||
{
|
||||
if ( inMessage == CIconContext::msg_ImageReadyToDraw )
|
||||
ImageIsReady();
|
||||
|
||||
} // ListenToMessage
|
||||
|
||||
|
||||
//
|
||||
// DrawIcon
|
||||
//
|
||||
// Draw the image. Will begin loading it if the data has not yet arrived and will
|
||||
// draw the standby in its place
|
||||
//
|
||||
void
|
||||
CImageIconMixin :: DrawImage ( const Point & inTopLeft, IconTransformType inTransform,
|
||||
Uint32 inWidth, Uint32 inHeight ) const
|
||||
{
|
||||
try {
|
||||
if ( gImageCache().RequestIcon(mURL, this) == CImageCache::kDataPresent ) {
|
||||
StColorState::Normalize();
|
||||
|
||||
DrawingState state;
|
||||
state.copyMode = srcCopy;
|
||||
gImageCache().FetchImageData ( mURL, &state.pixmap, &state.mask );
|
||||
|
||||
LockFEPixmapBuffer ( state.pixmap ) ;
|
||||
LockFEPixmapBuffer ( state.mask );
|
||||
//¥¥ do appropriate things for transform
|
||||
DoDrawing ( state, inTopLeft, inTransform, inWidth, inHeight ) ;
|
||||
UnlockFEPixmapBuffer ( state.mask );
|
||||
UnlockFEPixmapBuffer ( state.pixmap ) ;
|
||||
}
|
||||
else {
|
||||
// icon not ready yet, just draw this thing....
|
||||
DrawStandby ( inTopLeft, inTransform ) ;
|
||||
}
|
||||
}
|
||||
catch ( invalid_argument & ia ) {
|
||||
DebugStr("\pData requested for something not in cache");
|
||||
DrawStandby ( inTopLeft, inTransform ) ;
|
||||
}
|
||||
catch ( bad_alloc & ba ) {
|
||||
DebugStr("\pCould not allocate memory drawing icon");
|
||||
DrawStandby ( inTopLeft, inTransform ) ;
|
||||
}
|
||||
|
||||
} // DrawIcon
|
||||
|
||||
|
||||
void
|
||||
CImageIconMixin :: DoDrawing ( DrawingState & inState, const Point & inTopLeft,
|
||||
IconTransformType inTransform, Uint32 inWidth, Uint32 inHeight ) const
|
||||
{
|
||||
if ( inWidth == 0 && inHeight == 0 ) {
|
||||
inWidth = inState.pixmap->pixmap.bounds.right;
|
||||
inHeight = inState.pixmap->pixmap.bounds.bottom;
|
||||
}
|
||||
DrawScaledImage ( &inState, inTopLeft, 0, 0, inWidth, inHeight );
|
||||
|
||||
} // DoDrawing
|
||||
|
||||
|
||||
//
|
||||
// SetImageURL
|
||||
//
|
||||
// Change the url of the image to draw. We might be in the middle of loading another
|
||||
// image when we get this call, so unregister ourselves. This does NOT re-request
|
||||
// the new icon.
|
||||
//
|
||||
void
|
||||
CImageIconMixin :: SetImageURL ( const string & inNewURL )
|
||||
{
|
||||
gImageCache().ListenerGoingAway ( mURL, this );
|
||||
mURL = inNewURL;
|
||||
|
||||
} // SetImageURL
|
||||
|
||||
|
||||
#pragma mark -
|
||||
|
||||
|
||||
CTiledImageMixin :: CTiledImageMixin ( const string & inURL )
|
||||
: CImageIconMixin ( inURL )
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
CTiledImageMixin :: ~CTiledImageMixin ( )
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// DoDrawing
|
||||
//
|
||||
// Overloaded to draw a image as a tiled image for drawing backgrounds
|
||||
//
|
||||
void
|
||||
CTiledImageMixin :: DoDrawing ( DrawingState & inState, const Point & inTopLeft,
|
||||
IconTransformType inTransform, Uint32 inWidth, Uint32 inHeight ) const
|
||||
{
|
||||
DrawTiledImage ( &inState, inTopLeft, 0, 0, inWidth, inHeight );
|
||||
|
||||
} // DoDrawing
|
||||
|
||||
|
|
@ -1,106 +0,0 @@
|
|||
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
||||
*
|
||||
* The contents of this file are subject to the Netscape Public License
|
||||
* Version 1.0 (the "NPL"); you may not use this file except in
|
||||
* compliance with the NPL. You may obtain a copy of the NPL at
|
||||
* http://www.mozilla.org/NPL/
|
||||
*
|
||||
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
||||
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
||||
* for the specific language governing rights and limitations under the
|
||||
* NPL.
|
||||
*
|
||||
* The Initial Developer of this code under the NPL is Netscape
|
||||
* Communications Corporation. Portions created by Netscape are
|
||||
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
||||
* Reserved.
|
||||
*/
|
||||
|
||||
//
|
||||
// CImageIconMixin
|
||||
// Mike Pinkerton, Netscape Communications
|
||||
//
|
||||
// When you have an object that wants to draw itself using an image (gif, jpeg, etc),
|
||||
// just mix this class in and call the appropriate routines when you want to draw.
|
||||
// Most importantly, this handles cleaning up when the object goes away if it has
|
||||
// made a request for an image that has yet to arrive.
|
||||
//
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <string>
|
||||
|
||||
#include "CIconCache.h"
|
||||
#include "mimages.h"
|
||||
|
||||
|
||||
//
|
||||
// class CImageIconMixin
|
||||
//
|
||||
// Draw an image, most likely as an icon.
|
||||
//
|
||||
class CImageIconMixin : public LListener
|
||||
{
|
||||
public:
|
||||
|
||||
CImageIconMixin ( ) { } ;
|
||||
CImageIconMixin ( const string & inURL ) ;
|
||||
virtual ~CImageIconMixin ( ) ;
|
||||
|
||||
// Change the url telling us which image to load. Safe to call even when an image
|
||||
// load is pending, but will NOT re-request the new image.
|
||||
virtual void SetImageURL ( const string & inNewURL ) ;
|
||||
|
||||
// Draw the image. Will begin loading it if the data has not yet arrived and will
|
||||
// draw the standby in its place. Pass zero's for width and height to use image defaults
|
||||
// or the image will be scaled to what you put in.
|
||||
void DrawImage ( const Point & inTopLeft, IconTransformType inTransform,
|
||||
Uint32 inWidth, Uint32 inHeight ) const;
|
||||
|
||||
protected:
|
||||
|
||||
// catch the message that the image is ready to draw
|
||||
virtual void ListenToMessage ( MessageT inMessage, void* ioPtr ) ;
|
||||
|
||||
// called when the image is ready to draw. This should do something like
|
||||
// refresh the view.
|
||||
virtual void ImageIsReady ( ) = 0;
|
||||
|
||||
// Draw a scaled image as an icon. Override to draw differently
|
||||
virtual void DoDrawing ( DrawingState & inState, const Point & inTopLeft,
|
||||
IconTransformType inTransform, Uint32 inWidth,
|
||||
Uint32 inHeight ) const ;
|
||||
|
||||
// Draw something when the real image is not yet here.
|
||||
virtual void DrawStandby ( const Point & inTopLeft, IconTransformType inTransform ) const = 0;
|
||||
|
||||
private:
|
||||
|
||||
string mURL;
|
||||
|
||||
}; // class CImageIconMixin
|
||||
|
||||
|
||||
//
|
||||
// class CTiledImageMixin
|
||||
//
|
||||
// Tile an image, for use as backgrounds in chrome or tables
|
||||
//
|
||||
class CTiledImageMixin : public CImageIconMixin
|
||||
{
|
||||
public:
|
||||
|
||||
CTiledImageMixin ( ) { };
|
||||
CTiledImageMixin ( const string & inURL ) ;
|
||||
virtual ~CTiledImageMixin ( ) ;
|
||||
|
||||
protected:
|
||||
|
||||
// Draw a image as a tiled image for drawing backgrounds. Width and Height are
|
||||
// reinterpreted to mean the width and height of the area the image is being tiled
|
||||
// in.
|
||||
virtual void DoDrawing ( DrawingState & inState, const Point & inTopLeft,
|
||||
IconTransformType inTransform, Uint32 inWidth,
|
||||
Uint32 inHeight ) const ;
|
||||
|
||||
}; // class CTiledImageMixin
|
||||
Загрузка…
Ссылка в новой задаче