d432839022
disjunction of all view flags before, and the new layout related flags were missing. I suppose there was not striking reason for previous method. * Made InvalidateLayout() virtual. When implementing layout management directly in a derived class instead of a separate BLayout, one needs to override it to know when to discard cashed layout infos. * Added a ResizeTo(BSize) method. * Avoided ugly multi-line strings in PrintToStream(). git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21355 a95241bf-73f2-0310-859d-f6bbb57e9c96
693 lines
20 KiB
C++
693 lines
20 KiB
C++
/*
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* Copyright 2001-2006, Haiku.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Erik Jaesler (erik@cgsoftware.com)
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*/
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#ifndef _VIEW_H
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#define _VIEW_H
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#include <Alignment.h>
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#include <BeBuild.h>
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#include <Font.h>
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#include <Handler.h>
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#include <InterfaceDefs.h>
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#include <Rect.h>
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#include <Size.h>
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// mouse button
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enum {
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B_PRIMARY_MOUSE_BUTTON = 0x01,
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B_SECONDARY_MOUSE_BUTTON = 0x02,
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B_TERTIARY_MOUSE_BUTTON = 0x04
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};
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// mouse transit
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enum {
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B_ENTERED_VIEW = 0,
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B_INSIDE_VIEW,
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B_EXITED_VIEW,
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B_OUTSIDE_VIEW
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};
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// event mask
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enum {
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B_POINTER_EVENTS = 0x00000001,
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B_KEYBOARD_EVENTS = 0x00000002
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};
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// event mask options
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enum {
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B_LOCK_WINDOW_FOCUS = 0x00000001,
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B_SUSPEND_VIEW_FOCUS = 0x00000002,
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B_NO_POINTER_HISTORY = 0x00000004
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};
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enum {
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B_TRACK_WHOLE_RECT,
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B_TRACK_RECT_CORNER
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};
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// set font mask
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enum {
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B_FONT_FAMILY_AND_STYLE = 0x00000001,
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B_FONT_SIZE = 0x00000002,
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B_FONT_SHEAR = 0x00000004,
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B_FONT_ROTATION = 0x00000008,
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B_FONT_SPACING = 0x00000010,
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B_FONT_ENCODING = 0x00000020,
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B_FONT_FACE = 0x00000040,
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B_FONT_FLAGS = 0x00000080,
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B_FONT_FALSE_BOLD_WIDTH = 0x00000100,
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B_FONT_ALL = 0x000001FF
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};
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// view flags
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const uint32 B_FULL_UPDATE_ON_RESIZE = 0x80000000UL; /* 31 */
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const uint32 _B_RESERVED1_ = 0x40000000UL; /* 30 */
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const uint32 B_WILL_DRAW = 0x20000000UL; /* 29 */
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const uint32 B_PULSE_NEEDED = 0x10000000UL; /* 28 */
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const uint32 B_NAVIGABLE_JUMP = 0x08000000UL; /* 27 */
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const uint32 B_FRAME_EVENTS = 0x04000000UL; /* 26 */
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const uint32 B_NAVIGABLE = 0x02000000UL; /* 25 */
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const uint32 B_SUBPIXEL_PRECISE = 0x01000000UL; /* 24 */
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const uint32 B_DRAW_ON_CHILDREN = 0x00800000UL; /* 23 */
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const uint32 B_INPUT_METHOD_AWARE = 0x00400000UL; /* 23 */
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const uint32 _B_RESERVED7_ = 0x00200000UL; /* 22 */
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const uint32 B_SUPPORTS_LAYOUT = 0x00100000UL; /* 21 */
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const uint32 B_INVALIDATE_AFTER_LAYOUT = 0x00080000UL; /* 20 */
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#define _RESIZE_MASK_ (0xffff)
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const uint32 _VIEW_TOP_ = 1UL;
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const uint32 _VIEW_LEFT_ = 2UL;
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const uint32 _VIEW_BOTTOM_ = 3UL;
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const uint32 _VIEW_RIGHT_ = 4UL;
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const uint32 _VIEW_CENTER_ = 5UL;
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inline uint32 _rule_(uint32 r1, uint32 r2, uint32 r3, uint32 r4)
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{ return ((r1 << 12) | (r2 << 8) | (r3 << 4) | r4); }
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#define B_FOLLOW_NONE 0
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#define B_FOLLOW_ALL_SIDES _rule_(_VIEW_TOP_, _VIEW_LEFT_, _VIEW_BOTTOM_, _VIEW_RIGHT_)
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#define B_FOLLOW_ALL B_FOLLOW_ALL_SIDES
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#define B_FOLLOW_LEFT _rule_(0, _VIEW_LEFT_, 0, _VIEW_LEFT_)
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#define B_FOLLOW_RIGHT _rule_(0, _VIEW_RIGHT_, 0, _VIEW_RIGHT_)
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#define B_FOLLOW_LEFT_RIGHT _rule_(0, _VIEW_LEFT_, 0, _VIEW_RIGHT_)
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#define B_FOLLOW_H_CENTER _rule_(0, _VIEW_CENTER_, 0, _VIEW_CENTER_)
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#define B_FOLLOW_TOP _rule_(_VIEW_TOP_, 0, _VIEW_TOP_, 0)
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#define B_FOLLOW_BOTTOM _rule_(_VIEW_BOTTOM_, 0, _VIEW_BOTTOM_, 0)
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#define B_FOLLOW_TOP_BOTTOM _rule_(_VIEW_TOP_, 0, _VIEW_BOTTOM_, 0)
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#define B_FOLLOW_V_CENTER _rule_(_VIEW_CENTER_, 0, _VIEW_CENTER_, 0)
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class BBitmap;
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class BCursor;
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class BLayout;
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class BLayoutContext;
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class BLayoutItem;
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class BMessage;
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class BPicture;
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class BPolygon;
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class BRegion;
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class BScrollBar;
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class BScrollView;
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class BShape;
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class BShelf;
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class BString;
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class BWindow;
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struct _array_data_;
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struct _array_hdr_;
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struct overlay_restrictions;
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namespace BPrivate {
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class ViewState;
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};
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class BView : public BHandler {
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public:
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BView(const char* name, uint32 flags,
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BLayout* layout = NULL);
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BView(BRect frame, const char* name,
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uint32 resizeMask, uint32 flags);
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virtual ~BView();
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BView(BMessage* data);
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static BArchivable* Instantiate(BMessage* data);
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virtual status_t Archive(BMessage* data, bool deep = true) const;
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virtual void AttachedToWindow();
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virtual void AllAttached();
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virtual void DetachedFromWindow();
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virtual void AllDetached();
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virtual void MessageReceived(BMessage* msg);
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void AddChild(BView* child, BView* before = NULL);
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bool AddChild(BLayoutItem* child);
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bool RemoveChild(BView* child);
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int32 CountChildren() const;
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BView* ChildAt(int32 index) const;
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BView* NextSibling() const;
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BView* PreviousSibling() const;
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bool RemoveSelf();
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BWindow* Window() const;
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virtual void Draw(BRect updateRect);
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virtual void MouseDown(BPoint where);
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virtual void MouseUp(BPoint where);
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virtual void MouseMoved(BPoint where,
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uint32 code,
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const BMessage* a_message);
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virtual void WindowActivated(bool state);
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virtual void KeyDown(const char* bytes, int32 numBytes);
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virtual void KeyUp(const char* bytes, int32 numBytes);
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virtual void Pulse();
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virtual void FrameMoved(BPoint new_position);
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virtual void FrameResized(float new_width, float new_height);
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virtual void TargetedByScrollView(BScrollView* scroll_view);
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void BeginRectTracking(BRect startRect,
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uint32 style = B_TRACK_WHOLE_RECT);
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void EndRectTracking();
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void GetMouse(BPoint* location,
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uint32* buttons,
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bool checkMessageQueue = true);
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void DragMessage(BMessage* aMessage,
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BRect dragRect,
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BHandler* reply_to = NULL);
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void DragMessage(BMessage* aMessage,
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BBitmap* anImage,
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BPoint offset,
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BHandler* reply_to = NULL);
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void DragMessage(BMessage* aMessage,
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BBitmap* anImage,
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drawing_mode dragMode,
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BPoint offset,
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BHandler* reply_to = NULL);
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BView* FindView(const char* name) const;
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BView* Parent() const;
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BRect Bounds() const;
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BRect Frame() const;
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void ConvertToScreen(BPoint* pt) const;
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BPoint ConvertToScreen(BPoint pt) const;
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void ConvertFromScreen(BPoint* pt) const;
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BPoint ConvertFromScreen(BPoint pt) const;
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void ConvertToScreen(BRect* r) const;
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BRect ConvertToScreen(BRect r) const;
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void ConvertFromScreen(BRect* r) const;
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BRect ConvertFromScreen(BRect r) const;
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void ConvertToParent(BPoint* pt) const;
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BPoint ConvertToParent(BPoint pt) const;
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void ConvertFromParent(BPoint* pt) const;
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BPoint ConvertFromParent(BPoint pt) const;
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void ConvertToParent(BRect* r) const;
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BRect ConvertToParent(BRect r) const;
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void ConvertFromParent(BRect* r) const;
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BRect ConvertFromParent(BRect r) const;
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BPoint LeftTop() const;
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void GetClippingRegion(BRegion* region) const;
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virtual void ConstrainClippingRegion(BRegion* region);
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void ClipToPicture(BPicture* picture,
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BPoint where = B_ORIGIN,
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bool sync = true);
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void ClipToInversePicture(BPicture* picture,
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BPoint where = B_ORIGIN,
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bool sync = true);
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virtual void SetDrawingMode(drawing_mode mode);
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drawing_mode DrawingMode() const;
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void SetBlendingMode(source_alpha srcAlpha,
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alpha_function alphaFunc);
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void GetBlendingMode(source_alpha* srcAlpha,
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alpha_function* alphaFunc) const;
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virtual void SetPenSize(float size);
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float PenSize() const;
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void SetViewCursor(const BCursor* cursor, bool sync=true);
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virtual void SetViewColor(rgb_color c);
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void SetViewColor(uchar r, uchar g, uchar b, uchar a = 255);
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rgb_color ViewColor() const;
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void SetViewBitmap(const BBitmap* bitmap,
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BRect srcRect, BRect dstRect,
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uint32 followFlags = B_FOLLOW_TOP|B_FOLLOW_LEFT,
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uint32 options = B_TILE_BITMAP);
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void SetViewBitmap(const BBitmap* bitmap,
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uint32 followFlags = B_FOLLOW_TOP|B_FOLLOW_LEFT,
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uint32 options = B_TILE_BITMAP);
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void ClearViewBitmap();
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status_t SetViewOverlay(const BBitmap* overlay,
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BRect srcRect, BRect dstRect,
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rgb_color* colorKey,
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uint32 followFlags = B_FOLLOW_TOP|B_FOLLOW_LEFT,
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uint32 options = 0);
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status_t SetViewOverlay(const BBitmap* overlay, rgb_color* colorKey,
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uint32 followFlags = B_FOLLOW_TOP|B_FOLLOW_LEFT,
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uint32 options = 0);
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void ClearViewOverlay();
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virtual void SetHighColor(rgb_color a_color);
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void SetHighColor(uchar r, uchar g, uchar b, uchar a = 255);
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rgb_color HighColor() const;
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virtual void SetLowColor(rgb_color a_color);
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void SetLowColor(uchar r, uchar g, uchar b, uchar a = 255);
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rgb_color LowColor() const;
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void SetLineMode(cap_mode lineCap,
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join_mode lineJoin,
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float miterLimit = B_DEFAULT_MITER_LIMIT);
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join_mode LineJoinMode() const;
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cap_mode LineCapMode() const;
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float LineMiterLimit() const;
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void SetOrigin(BPoint pt);
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void SetOrigin(float x, float y);
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BPoint Origin() const;
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void PushState();
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void PopState();
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void MovePenTo(BPoint pt);
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void MovePenTo(float x, float y);
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void MovePenBy(float x, float y);
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BPoint PenLocation() const;
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void StrokeLine(BPoint toPt,
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pattern p = B_SOLID_HIGH);
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void StrokeLine(BPoint pt0,
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BPoint pt1,
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pattern p = B_SOLID_HIGH);
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void BeginLineArray(int32 count);
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void AddLine(BPoint pt0, BPoint pt1, rgb_color col);
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void EndLineArray();
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void StrokePolygon(const BPolygon* aPolygon,
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bool closed = true,
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pattern p = B_SOLID_HIGH);
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void StrokePolygon(const BPoint* ptArray,
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int32 numPts,
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bool closed = true,
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pattern p = B_SOLID_HIGH);
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void StrokePolygon(const BPoint* ptArray,
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int32 numPts,
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BRect bounds,
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bool closed = true,
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pattern p = B_SOLID_HIGH);
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void FillPolygon(const BPolygon* aPolygon,
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pattern p = B_SOLID_HIGH);
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void FillPolygon(const BPoint* ptArray,
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int32 numPts,
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pattern p = B_SOLID_HIGH);
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void FillPolygon(const BPoint* ptArray,
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int32 numPts,
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BRect bounds,
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pattern p = B_SOLID_HIGH);
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void StrokeTriangle(BPoint pt1,
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BPoint pt2,
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BPoint pt3,
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BRect bounds,
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pattern p = B_SOLID_HIGH);
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void StrokeTriangle(BPoint pt1,
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BPoint pt2,
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BPoint pt3,
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pattern p = B_SOLID_HIGH);
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void FillTriangle(BPoint pt1,
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BPoint pt2,
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BPoint pt3,
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pattern p = B_SOLID_HIGH);
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void FillTriangle(BPoint pt1,
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BPoint pt2,
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BPoint pt3,
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BRect bounds,
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pattern p = B_SOLID_HIGH);
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void StrokeRect(BRect r, pattern p = B_SOLID_HIGH);
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void FillRect(BRect r, pattern p = B_SOLID_HIGH);
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void FillRegion(BRegion* a_region, pattern p= B_SOLID_HIGH);
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void InvertRect(BRect r);
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void StrokeRoundRect(BRect r,
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float xRadius,
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float yRadius,
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pattern p = B_SOLID_HIGH);
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void FillRoundRect(BRect r,
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float xRadius,
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float yRadius,
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pattern p = B_SOLID_HIGH);
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void StrokeEllipse(BPoint center,
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float xRadius,
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float yRadius,
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pattern p = B_SOLID_HIGH);
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void StrokeEllipse(BRect r, pattern p = B_SOLID_HIGH);
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void FillEllipse(BPoint center,
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float xRadius,
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float yRadius,
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pattern p = B_SOLID_HIGH);
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void FillEllipse(BRect r, pattern p = B_SOLID_HIGH);
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void StrokeArc(BPoint center,
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float xRadius,
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float yRadius,
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float start_angle,
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float arc_angle,
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pattern p = B_SOLID_HIGH);
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void StrokeArc(BRect r,
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float start_angle,
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float arc_angle,
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pattern p = B_SOLID_HIGH);
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void FillArc(BPoint center,
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float xRadius,
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float yRadius,
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float start_angle,
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float arc_angle,
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pattern p = B_SOLID_HIGH);
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void FillArc(BRect r,
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float start_angle,
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float arc_angle,
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pattern p = B_SOLID_HIGH);
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void StrokeBezier(BPoint* controlPoints,
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pattern p = B_SOLID_HIGH);
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void FillBezier(BPoint* controlPoints,
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pattern p = B_SOLID_HIGH);
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void StrokeShape(BShape* shape,
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pattern p = B_SOLID_HIGH);
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void FillShape(BShape* shape,
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pattern p = B_SOLID_HIGH);
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void CopyBits(BRect src, BRect dst);
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void DrawBitmapAsync(const BBitmap* aBitmap,
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BRect srcRect,
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BRect dstRect);
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void DrawBitmapAsync(const BBitmap* aBitmap);
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void DrawBitmapAsync(const BBitmap* aBitmap, BPoint where);
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void DrawBitmapAsync(const BBitmap* aBitmap, BRect dstRect);
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void DrawBitmap(const BBitmap* aBitmap,
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BRect srcRect,
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BRect dstRect);
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void DrawBitmap(const BBitmap* aBitmap);
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void DrawBitmap(const BBitmap* aBitmap, BPoint where);
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void DrawBitmap(const BBitmap* aBitmap, BRect dstRect);
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void DrawChar(char aChar);
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void DrawChar(char aChar, BPoint location);
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void DrawString(const char* aString,
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escapement_delta* delta = NULL);
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void DrawString(const char* aString, BPoint location,
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escapement_delta* delta = NULL);
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void DrawString(const char* aString, int32 length,
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escapement_delta* delta = NULL);
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void DrawString(const char* aString,
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int32 length,
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BPoint location,
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escapement_delta* delta = 0L);
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virtual void SetFont(const BFont* font, uint32 mask = B_FONT_ALL);
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#if !_PR3_COMPATIBLE_
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void GetFont(BFont* font) const;
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#else
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void GetFont(BFont* font);
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#endif
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void TruncateString(BString* in_out,
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uint32 mode,
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float width) const;
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float StringWidth(const char* string) const;
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float StringWidth(const char* string, int32 length) const;
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void GetStringWidths(char* stringArray[],
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int32 lengthArray[],
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int32 numStrings,
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float widthArray[]) const;
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void SetFontSize(float size);
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void ForceFontAliasing(bool enable);
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void GetFontHeight(font_height* height) const;
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void Invalidate(BRect invalRect);
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void Invalidate(const BRegion* invalRegion);
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void Invalidate();
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void SetDiskMode(char* filename, long offset);
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void BeginPicture(BPicture* a_picture);
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void AppendToPicture(BPicture* a_picture);
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BPicture* EndPicture();
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void DrawPicture(const BPicture* a_picture);
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void DrawPicture(const BPicture* a_picture, BPoint where);
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void DrawPicture(const char* filename, long offset, BPoint where);
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void DrawPictureAsync(const BPicture* a_picture);
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void DrawPictureAsync(const BPicture* a_picture, BPoint where);
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void DrawPictureAsync(const char* filename, long offset,
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BPoint where);
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status_t SetEventMask(uint32 mask, uint32 options=0);
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uint32 EventMask();
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status_t SetMouseEventMask(uint32 mask, uint32 options=0);
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virtual void SetFlags(uint32 flags);
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uint32 Flags() const;
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virtual void SetResizingMode(uint32 mode);
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uint32 ResizingMode() const;
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void MoveBy(float dh, float dv);
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void MoveTo(BPoint where);
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void MoveTo(float x, float y);
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void ResizeBy(float dh, float dv);
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void ResizeTo(float width, float height);
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void ResizeTo(BSize size);
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void ScrollBy(float dh, float dv);
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void ScrollTo(float x, float y);
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virtual void ScrollTo(BPoint where);
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virtual void MakeFocus(bool focusState = true);
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bool IsFocus() const;
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virtual void Show();
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virtual void Hide();
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bool IsHidden() const;
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bool IsHidden(const BView* looking_from) const;
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void Flush() const;
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void Sync() const;
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virtual void GetPreferredSize(float* width, float* height);
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virtual void ResizeToPreferred();
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BScrollBar* ScrollBar(orientation posture) const;
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virtual BHandler* ResolveSpecifier(BMessage* msg,
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int32 index,
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BMessage* specifier,
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int32 form,
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const char* property);
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virtual status_t GetSupportedSuites(BMessage* data);
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bool IsPrinting() const;
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void SetScale(float scale) const;
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float Scale() const;
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// new for Haiku
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virtual status_t Perform(perform_code d, void* arg);
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virtual void DrawAfterChildren(BRect r);
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// layout related
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virtual BSize MinSize();
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virtual BSize MaxSize();
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virtual BSize PreferredSize();
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virtual BAlignment Alignment();
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void SetExplicitMinSize(BSize size);
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void SetExplicitMaxSize(BSize size);
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void SetExplicitPreferredSize(BSize size);
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void SetExplicitAlignment(BAlignment alignment);
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BSize ExplicitMinSize() const;
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BSize ExplicitMaxSize() const;
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BSize ExplicitPreferredSize() const;
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BAlignment ExplicitAlignment() const;
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virtual bool HasHeightForWidth();
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virtual void GetHeightForWidth(float width, float* min,
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float* max, float* preferred);
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virtual void SetLayout(BLayout* layout);
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BLayout* GetLayout() const;
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virtual void InvalidateLayout(bool descendants = false);
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void EnableLayoutInvalidation();
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void DisableLayoutInvalidation();
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bool IsLayoutValid() const;
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BLayoutContext* LayoutContext() const;
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void Layout(bool force);
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void Relayout();
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protected:
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virtual void DoLayout();
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private:
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void _Layout(bool force, BLayoutContext* context);
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private:
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struct LayoutData;
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friend class BBitmap;
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friend class BLayout;
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friend class BPrintJob;
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friend class BScrollBar;
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friend class BShelf;
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friend class BTabView;
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friend class BWindow;
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virtual void _ReservedView11();
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virtual void _ReservedView12();
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virtual void _ReservedView13();
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virtual void _ReservedView14();
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virtual void _ReservedView15();
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virtual void _ReservedView16();
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BView(const BView&);
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BView& operator=(const BView&);
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void _InitData(BRect frame, const char* name, uint32 resizeMask,
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uint32 flags);
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status_t _SetViewBitmap(const BBitmap* bitmap,BRect srcRect,
|
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BRect dstRect, uint32 followFlags, uint32 options);
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void DoBezier(int32 gr, BPoint* controlPoints, pattern p);
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void DoShape(int32 gr, BShape* shape, pattern p);
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void DoPictureClip(BPicture* picture, BPoint where, bool invert,
|
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bool sync);
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|
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bool do_owner_check() const;
|
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bool do_owner_check_no_pick() const;
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void check_lock() const;
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void check_lock_no_pick() const;
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void _SetOwner(BWindow* newOwner);
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void handle_tick();
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char* test_area(int32 length);
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void removeCommArray();
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void SetScroller(BScrollBar* sb);
|
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void UnsetScroller(BScrollBar* sb);
|
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void RealScrollTo(BPoint);
|
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void fetch_font();
|
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uchar font_encoding() const;
|
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BShelf* _Shelf() const;
|
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void _SetShelf(BShelf* shelf);
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|
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void _MoveTo(int32 x, int32 y);
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void _ResizeBy(int32 deltaWidth, int32 deltaHeight);
|
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void _ParentResizedBy(int32 x, int32 y);
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|
|
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void _Activate(bool state);
|
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void _Attach();
|
|
void _Detach();
|
|
void _Draw(BRect updateRect);
|
|
void _Pulse();
|
|
|
|
void _UpdateStateForRemove();
|
|
void _UpdatePattern(::pattern pattern);
|
|
|
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void _FlushIfNotInTransaction();
|
|
|
|
bool _CreateSelf();
|
|
bool _AddChildToList(BView* child, BView* before = NULL);
|
|
bool _RemoveChildFromList(BView* child);
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|
|
|
bool _AddChild(BView *child, BView *before);
|
|
bool _RemoveSelf();
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|
|
|
// Debugging methods
|
|
void PrintToStream();
|
|
void PrintTree();
|
|
|
|
int32 server_token;
|
|
uint32 fFlags;
|
|
BPoint fParentOffset;
|
|
BWindow* fOwner;
|
|
BView* fParent;
|
|
BView* fNextSibling;
|
|
BView* fPreviousSibling;
|
|
BView* fFirstChild;
|
|
|
|
int16 fShowLevel;
|
|
bool fTopLevelView;
|
|
bool fNoISInteraction;
|
|
BPicture* cpicture;
|
|
_array_data_* comm;
|
|
|
|
BScrollBar* fVerScroller;
|
|
BScrollBar* fHorScroller;
|
|
bool f_is_printing;
|
|
bool fAttached;
|
|
bool _unused_bool1;
|
|
bool _unused_bool2;
|
|
BPrivate::ViewState* fState;
|
|
BRect fBounds;
|
|
BShelf* fShelf;
|
|
uint32 fEventMask;
|
|
uint32 fEventOptions;
|
|
|
|
LayoutData* fLayoutData;
|
|
|
|
uint32 _reserved[8];
|
|
};
|
|
|
|
|
|
// inline definitions ----------------------------------------------------------
|
|
|
|
inline void
|
|
BView::ScrollTo(float x, float y)
|
|
{
|
|
ScrollTo(BPoint(x, y));
|
|
}
|
|
|
|
inline void
|
|
BView::SetViewColor(uchar r, uchar g, uchar b, uchar a)
|
|
{
|
|
rgb_color color;
|
|
color.red = r; color.green = g;
|
|
color.blue = b; color.alpha = a;
|
|
SetViewColor(color);
|
|
}
|
|
|
|
inline void
|
|
BView::SetHighColor(uchar r, uchar g, uchar b, uchar a)
|
|
{
|
|
rgb_color color;
|
|
color.red = r; color.green = g;
|
|
color.blue = b; color.alpha = a;
|
|
SetHighColor(color);
|
|
}
|
|
|
|
inline void
|
|
BView::SetLowColor(uchar r, uchar g, uchar b, uchar a)
|
|
{
|
|
rgb_color color;
|
|
color.red = r; color.green = g;
|
|
color.blue = b; color.alpha = a;
|
|
SetLowColor(color);
|
|
}
|
|
|
|
#endif // _VIEW_H
|