haiku/headers/os/interface/StatusBar.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

119 lines
3.4 KiB
C++

/*
* Copyright 2006-2015, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _STATUS_BAR_H
#define _STATUS_BAR_H
#include <String.h>
#include <View.h>
class BStatusBar : public BView {
public:
BStatusBar(BRect frame, const char* name,
const char* label = NULL,
const char* trailingLabel = NULL);
BStatusBar(const char* name,
const char* label = NULL,
const char* trailingLabel = NULL);
BStatusBar(BMessage* archive);
virtual ~BStatusBar();
static BArchivable* Instantiate(BMessage* archive);
virtual status_t Archive(BMessage* archive,
bool deep = true) const;
virtual void AttachedToWindow();
virtual void DetachedFromWindow();
virtual void AllAttached();
virtual void AllDetached();
virtual void WindowActivated(bool state);
virtual void MakeFocus(bool focus = true);
virtual void GetPreferredSize(float* _width,
float* _height);
virtual BSize MinSize();
virtual BSize MaxSize();
virtual BSize PreferredSize();
virtual void ResizeToPreferred();
virtual void FrameMoved(BPoint newPosition);
virtual void FrameResized(float newWidth, float newHeight);
virtual void Draw(BRect updateRect);
virtual void MessageReceived(BMessage* message);
virtual void MouseDown(BPoint where);
virtual void MouseUp(BPoint where);
virtual void MouseMoved(BPoint where, uint32 transit,
const BMessage* dragMessage);
// BStatusBar
virtual void SetBarColor(rgb_color color);
virtual void SetBarHeight(float height);
virtual void SetText(const char* string);
virtual void SetTrailingText(const char* string);
virtual void SetMaxValue(float max);
virtual void Update(float delta, const char* text = NULL,
const char* trailingText = NULL);
virtual void Reset(const char* label = NULL,
const char* trailingLabel = NULL);
virtual void SetTo(float value, const char* text = NULL,
const char* trailingText = NULL);
float CurrentValue() const;
float MaxValue() const;
rgb_color BarColor() const;
float BarHeight() const;
const char* Text() const;
const char* TrailingText() const;
const char* Label() const;
const char* TrailingLabel() const;
virtual BHandler* ResolveSpecifier(BMessage* message,
int32 index, BMessage* specifier,
int32 what, const char* property);
virtual status_t GetSupportedSuites(BMessage* data);
virtual status_t Perform(perform_code d, void* arg);
private:
// FBC memebers
virtual void _ReservedStatusBar2();
virtual void _ReservedStatusBar3();
virtual void _ReservedStatusBar4();
BStatusBar& operator=(const BStatusBar& other);
void _InitObject();
void _SetTextData(BString& text, const char* string,
const BString& combineWith,
bool rightAligned);
BRect _BarFrame(const font_height* fontHeight
= NULL) const;
float _BarPosition(const BRect& barFrame) const;
bool _HasText() const;
BString fLabel;
BString fTrailingLabel;
BString fText;
BString fTrailingText;
float fMax;
float fCurrent;
float fBarHeight;
float fTextDivider;
rgb_color fBarColor;
bool fCustomBarHeight;
uint32 fInternalFlags;
uint32 _reserved[4];
};
#endif // _STATUS_BAR_H