test::ScribbleGC Struct Reference

#include <scribble_manager.h>

Public Member Functions
	ScribbleGC ()
	~ScribbleGC ()
void	set_line_color (const unsigned long c)
	Change the X11 gc to use new line color.
void	set_line_attributes (const int width)
	Change the X11 gc to use new line attributes. Currently, only change the width. Always use LineSolid.
void	draw_line (const int x1, const int y1, const int x2, const int y2)
	Draw line on widget by using current line color, line width and line style.
Data Fields
float	realZoom
	The real zoom factor (0, maxZoom).
int	rotation
	Currently it must be one of {0, 270}. It could be {90, 180, 270}.
GtkWidget *	widget
	The widget scribble will be drawn on.
GdkGC *	gc
	X11 graphics context.

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Detailed Description

Scribble graphics context. The scribble graphics context will be used by scribble manager to

• Draw strokes new added.
• Draw strokes removed.
• Draw storkes loaded from scribble document. Usually scribble manager will draw storkes both on e-ink screen and on gdk window.

Definition at line 75 of file scribble_manager.h.

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Constructor & Destructor Documentation

test::ScribbleGC::ScribbleGC

(

)

[inline]

Definition at line 83 of file scribble_manager.h.

    : realZoom(100.0f)
    , rotation(0)
    , widget(0)
    , gc(0)
    {}

test::ScribbleGC::~ScribbleGC

(

)

[inline]

Definition at line 90 of file scribble_manager.h.

{}

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Member Function Documentation

void test::ScribbleGC::draw_line	(	const int	x1,
		const int	y1,
		const int	x2,
		const int	y2
	)			[inline]

Draw line on widget by using current line color, line width and line style.

Definition at line 114 of file scribble_manager.h.

References gc, and widget.

    {
        gdk_draw_line(widget->window, gc, x1, y1, x2, y2);
    }

void test::ScribbleGC::set_line_attributes

(

const int

width

)

[inline]

Change the X11 gc to use new line attributes. Currently, only change the width. Always use LineSolid.

Definition at line 103 of file scribble_manager.h.

References gc.

    {
        gdk_gc_set_line_attributes(gc
            , width
            , GDK_LINE_SOLID
            , GDK_CAP_PROJECTING
            , GDK_JOIN_MITER);
    }

void test::ScribbleGC::set_line_color

(

const unsigned long

c

)

[inline]

Change the X11 gc to use new line color.

Definition at line 94 of file scribble_manager.h.

References gc.

    {
        GdkColor color;
        color.pixel = c;
        gdk_gc_set_foreground(gc, &color);
    }

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Field Documentation

GdkGC* test::ScribbleGC::gc

X11 graphics context.

Definition at line 81 of file scribble_manager.h.

Referenced by draw_line(), set_line_attributes(), and set_line_color().

float test::ScribbleGC::realZoom

The real zoom factor (0, maxZoom).

Definition at line 78 of file scribble_manager.h.

Referenced by test::ScribbleMgr::on_erase_begin(), and test::ScribbleMgr::on_erase_move().

int test::ScribbleGC::rotation

Currently it must be one of {0, 270}. It could be {90, 180, 270}.

Definition at line 79 of file scribble_manager.h.

Referenced by test::ScribbleMgr::draw_scribble_page(), test::ScribbleMgr::on_erase_begin(), test::ScribbleMgr::on_erase_end(), and test::ScribbleMgr::on_erase_move().

GtkWidget* test::ScribbleGC::widget

The widget scribble will be drawn on.

Definition at line 80 of file scribble_manager.h.

Referenced by draw_line().

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The documentation for this struct was generated from the following file:

• scribble_manager.h