graph.c File Reference

#include <phgui.h>
#include <graph.h>

Go to the source code of this file.

Macros
#define	_PH_GRAPH_PRIVATE
#define	COLORREF_TO_BITS(Color)   (_byteswap_ulong(Color) >> 8)

Typedefs
typedef struct _PHP_GRAPH_CONTEXT	PHP_GRAPH_CONTEXT
typedef struct _PHP_GRAPH_CONTEXT *	PPHP_GRAPH_CONTEXT

Functions
LRESULT CALLBACK	PhpGraphWndProc (_In_ HWND hwnd, _In_ UINT uMsg, _In_ WPARAM wParam, _In_ LPARAM lParam)
BOOLEAN	PhGraphControlInitialization (VOID)
VOID	PhDrawGraph (_In_ HDC hdc, _In_ PPH_GRAPH_DRAW_INFO DrawInfo)
	Draws a graph.
FORCEINLINE VOID	PhpGetGraphPoint (_In_ PPH_GRAPH_DRAW_INFO DrawInfo, _In_ ULONG Index, _Out_ PULONG H1, _Out_ PULONG H2)
VOID	PhDrawGraphDirect (_In_ HDC hdc, _In_ PVOID Bits, _In_ PPH_GRAPH_DRAW_INFO DrawInfo)
	Draws a graph directly to memory.
VOID	PhSetGraphText (_In_ HDC hdc, _Inout_ PPH_GRAPH_DRAW_INFO DrawInfo, _In_ PPH_STRINGREF Text, _In_ PRECT Margin, _In_ PRECT Padding, _In_ ULONG Align)
	Sets the text in a graphing information structure.
VOID	PhpCreateGraphContext (_Out_ PPHP_GRAPH_CONTEXT *Context)
VOID	PhpFreeGraphContext (_Inout_ _Post_invalid_ PPHP_GRAPH_CONTEXT Context)
VOID	PhpUpdateDrawInfo (_In_ HWND hwnd, _In_ PPHP_GRAPH_CONTEXT Context)
VOID	PhpDrawGraphControl (_In_ HWND hwnd, _In_ PPHP_GRAPH_CONTEXT Context)
VOID	PhInitializeGraphBuffers (_Out_ PPH_GRAPH_BUFFERS Buffers)
	Initializes a graph buffer management structure.
VOID	PhDeleteGraphBuffers (_Inout_ PPH_GRAPH_BUFFERS Buffers)
	Frees resources used by a graph buffer management structure.
VOID	PhGetDrawInfoGraphBuffers (_Inout_ PPH_GRAPH_BUFFERS Buffers, _Inout_ PPH_GRAPH_DRAW_INFO DrawInfo, _In_ ULONG DataCount)
	Sets up a graphing information structure with information from a graph buffer management structure.
VOID	PhInitializeGraphState (_Out_ PPH_GRAPH_STATE State)
VOID	PhDeleteGraphState (_Inout_ PPH_GRAPH_STATE State)
VOID	PhGraphStateGetDrawInfo (_Inout_ PPH_GRAPH_STATE State, _In_ PPH_GRAPH_GETDRAWINFO GetDrawInfo, _In_ ULONG DataCount)

Variables
RECT	PhNormalGraphTextMargin = { 5, 5, 5, 5 }
RECT	PhNormalGraphTextPadding = { 3, 3, 3, 3 }

Macro Definition Documentation

#define _PH_GRAPH_PRIVATE

Definition at line 23 of file graph.c.

#define COLORREF_TO_BITS

(

Color

)

(_byteswap_ulong(Color) >> 8)

Definition at line 27 of file graph.c.

Typedef Documentation

typedef struct _PHP_GRAPH_CONTEXT PHP_GRAPH_CONTEXT

typedef struct _PHP_GRAPH_CONTEXT * PPHP_GRAPH_CONTEXT

Function Documentation

VOID PhDeleteGraphBuffers

(

_Inout_ PPH_GRAPH_BUFFERS

Buffers

)

Frees resources used by a graph buffer management structure.

Parameters

Buffers

The buffer management structure.

Definition at line 1369 of file graph.c.

VOID PhDeleteGraphState

(

_Inout_ PPH_GRAPH_STATE

State

)

Definition at line 1431 of file graph.c.

VOID PhDrawGraph	(	_In_ HDC	hdc,
		_In_ PPH_GRAPH_DRAW_INFO	DrawInfo
	)

Draws a graph.

Parameters

hdc	The DC to draw to.
DrawInfo	A structure which contains graphing information.

Remarks

This function is extremely slow. Use PhDrawGraphDirect() whenever possible.

Definition at line 99 of file graph.c.

VOID PhDrawGraphDirect	(	_In_ HDC	hdc,
		_In_ PVOID	Bits,
		_In_ PPH_GRAPH_DRAW_INFO	DrawInfo
	)

Draws a graph directly to memory.

Parameters

hdc	The DC to draw to. This is only used when drawing text.
Bits	The bits in a bitmap.
DrawInfo	A structure which contains graphing information.

Remarks

The following information is fixed:

• The graph is fixed to the origin (0, 0).
• The total size of the bitmap is assumed to be Width and Height in DrawInfo.
• Step is fixed at 2.
• If PH_GRAPH_USE_LINE_2 is specified in Flags, PH_GRAPH_OVERLAY_LINE_2 is never used.

Definition at line 413 of file graph.c.

VOID PhGetDrawInfoGraphBuffers	(	_Inout_ PPH_GRAPH_BUFFERS	Buffers,
		_Inout_ PPH_GRAPH_DRAW_INFO	DrawInfo,
		_In_ ULONG	DataCount
	)

Sets up a graphing information structure with information from a graph buffer management structure.

Parameters

Buffers	The buffer management structure.
DrawInfo	The graphing information structure.
DataCount	The number of data points currently required. The buffers are resized if needed.

Definition at line 1386 of file graph.c.

BOOLEAN PhGraphControlInitialization

(

VOID

)

Definition at line 66 of file graph.c.

VOID PhGraphStateGetDrawInfo	(	_Inout_ PPH_GRAPH_STATE	State,
		_In_ PPH_GRAPH_GETDRAWINFO	GetDrawInfo,
		_In_ ULONG	DataCount
	)

Definition at line 1440 of file graph.c.

VOID PhInitializeGraphBuffers

(

_Out_ PPH_GRAPH_BUFFERS

Buffers

)

Initializes a graph buffer management structure.

Parameters

Buffers

The buffer management structure.

Definition at line 1354 of file graph.c.

VOID PhInitializeGraphState

(

_Out_ PPH_GRAPH_STATE

State

)

Definition at line 1421 of file graph.c.

VOID PhpCreateGraphContext

(

_Out_ PPHP_GRAPH_CONTEXT *

Context

)

Definition at line 750 of file graph.c.

VOID PhpDrawGraphControl	(	_In_ HWND	hwnd,
		_In_ PPHP_GRAPH_CONTEXT	Context
	)

Definition at line 936 of file graph.c.

VOID PhpFreeGraphContext

(

_Inout_ _Post_invalid_ PPHP_GRAPH_CONTEXT

Context

)

Definition at line 784 of file graph.c.

FORCEINLINE VOID PhpGetGraphPoint	(	_In_ PPH_GRAPH_DRAW_INFO	DrawInfo,
		_In_ ULONG	Index,
		_Out_ PULONG	H1,
		_Out_ PULONG	H2
	)

Definition at line 359 of file graph.c.

LRESULT CALLBACK PhpGraphWndProc	(	_In_ HWND	hwnd,
		_In_ UINT	uMsg,
		_In_ WPARAM	wParam,
		_In_ LPARAM	lParam
	)

Definition at line 984 of file graph.c.

VOID PhpUpdateDrawInfo	(	_In_ HWND	hwnd,
		_In_ PPHP_GRAPH_CONTEXT	Context
	)

Definition at line 918 of file graph.c.

VOID PhSetGraphText	(	_In_ HDC	hdc,
		_Inout_ PPH_GRAPH_DRAW_INFO	DrawInfo,
		_In_ PPH_STRINGREF	Text,
		_In_ PRECT	Margin,
		_In_ PRECT	Padding,
		_In_ ULONG	Align
	)

Sets the text in a graphing information structure.

Parameters

hdc	The DC to perform calculations from.
DrawInfo	A structure which contains graphing information. The structure is modified to contain the new text information.
Text	The text.
Margin	The margins of the text box from the edges of the graph.
Padding	The padding within the text box.
Align	The alignment of the text box.

Definition at line 703 of file graph.c.

Variable Documentation

RECT PhNormalGraphTextMargin = { 5, 5, 5, 5 }

Definition at line 63 of file graph.c.

RECT PhNormalGraphTextPadding = { 3, 3, 3, 3 }

Definition at line 64 of file graph.c.