haiku/headers/os/interface/Box.h
looncraz 7f9368cae5 Set*UIColor, etc.
The inseparable changes necessary to support live color updating across the
system in a sane, safe, and performant manner.

BView gains:

HasSystemColors()
HasDefaultColors()
AdoptSystemColors()
AdoptParentColors()
AdoptViewColor(BView*)
SetViewUIColor(color_which, float tint)
SetHighUIColor(...
SetLowUIColor(...
ViewUIColor(float* tint)
HighUIColor(...
LowUIColor(...
DelayedInvalidate()

BWindow gains a simple helper method:
IsOffscreenWindow()

BMessage gains:

AddColor()
FindColor()
GetColor()
HasColor()            * allegedly this API is deprecated, but I implemented it anyway
ReplaceColor()
SetColor()

Previous private ColorTools methods are made public and moved into GraphicsDefs:

mix_color, blend_color, disable_color

These are fully compatible with BeOS dan0 R5.1 methods and are just code cleanup
of BeOS example code under the OpenTracker license.

In addition, four new colors are created:
B_LINK_TEXT_COLOR
B_LINK_HOVER_COLOR
B_LINK_ACTIVE_COLOR
B_LINK_VISITED_COLOR

These changes are documented in their proper user documentation files.

In addition, due to a history rewrite, B_FOLLOW_LEFT_TOP has been defined and
used in lieu of B_FOLLOW_TOP | B_FOLLOW_LEFT and is included in this commit.

On the app_server side, the following has changed:

Add DelayedMessage - a system by which messages can be sent at a scheduled time,
and can also be merged according to set rules.  A single thread is used to service the
message queue and multiple recipients can be set for each message.
Desktop gains the ability to add message ports to a DelayedMessage so that
said messages can target either all applications or all windows, as needed.

Desktop maintains a BMessage which is used to queue up all pending color changes
and the delayed messaging system is used to enact these changes after a short
period of time has passed.  This prevents abuse and allows the system to merge
repeated set_ui_color events into one event for client applications, improving
performance drastically.

In addition, B_COLORS_UPDATED is sent to the BApplication, which forwards the message
to each BWindow.  This is done to improve performance over having the app_server
independently informing each window.

Decorator changes are live now, which required some reworking.

Signed-off-by: Augustin Cavalier <waddlesplash@gmail.com>
2016-01-04 06:48:22 -05:00

102 lines
2.8 KiB
C++

/*
* Copyright 2005-2015 Haiku, Inc. All Rights Reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _BOX_H
#define _BOX_H
#include <View.h>
class BBox : public BView {
public:
BBox(BRect frame, const char* name = NULL,
uint32 resizingMode = B_FOLLOW_LEFT_TOP,
uint32 flags = B_WILL_DRAW | B_FRAME_EVENTS
| B_NAVIGABLE_JUMP,
border_style border = B_FANCY_BORDER);
BBox(const char* name,
uint32 flags = B_WILL_DRAW | B_FRAME_EVENTS
| B_NAVIGABLE_JUMP,
border_style border = B_FANCY_BORDER,
BView* child = NULL);
BBox(border_style border, BView* child);
virtual ~BBox();
/* Archiving */
BBox(BMessage* archive);
static BArchivable* Instantiate(BMessage* archive);
virtual status_t Archive(BMessage* archive, bool deep = true) const;
virtual void SetBorder(border_style border);
border_style Border() const;
float TopBorderOffset();
BRect InnerFrame();
void SetLabel(const char* string);
status_t SetLabel(BView* viewLabel);
const char* Label() const;
BView* LabelView() const;
virtual void Draw(BRect updateRect);
virtual void AttachedToWindow();
virtual void DetachedFromWindow();
virtual void AllAttached();
virtual void AllDetached();
virtual void FrameResized(float width, float height);
virtual void MessageReceived(BMessage* message);
virtual void MouseDown(BPoint point);
virtual void MouseUp(BPoint point);
virtual void WindowActivated(bool active);
virtual void MouseMoved(BPoint point, uint32 transit,
const BMessage* dragMessage);
virtual void FrameMoved(BPoint newLocation);
virtual BHandler* ResolveSpecifier(BMessage* message,
int32 index, BMessage* specifier,
int32 what, const char* property);
virtual void ResizeToPreferred();
virtual void GetPreferredSize(float* _width, float* _height);
virtual void MakeFocus(bool focused = true);
virtual status_t GetSupportedSuites(BMessage* message);
virtual status_t Perform(perform_code d, void* arg);
virtual BSize MinSize();
virtual BSize MaxSize();
virtual BSize PreferredSize();
virtual BAlignment LayoutAlignment();
protected:
virtual void LayoutInvalidated(bool descendants = false);
virtual void DoLayout();
private:
struct LayoutData;
virtual void _ReservedBox1();
virtual void _ReservedBox2();
BBox &operator=(const BBox &);
void _InitObject(BMessage* data = NULL);
void _DrawPlain(BRect labelBox);
void _DrawFancy(BRect labelBox);
void _ClearLabel();
BView* _Child() const;
void _ValidateLayoutData();
char* fLabel;
BRect fBounds;
border_style fStyle;
BView* fLabelView;
LayoutData* fLayoutData;
};
#endif // _BOX_H