scribble/src/ink_draw.c File Reference

#include <stdlib.h>
#include <gtk/gtk.h>
#include "ink_draw.h"
#include "ScribbleLog.h"
#include "ScribbleUtils.h"

Go to the source code of this file.

Functions
int	ink_setDrawable (GdkDrawable *pDrawable)
gboolean	setPenSizeAtrr (int iPenSize)
gboolean	setPenColorAttr (GdkColor *pGdkColor)
void	ink_draw_line (int x0, int y0, int x1, int y1)
void	draw_ink (PtrInk ink)
void	draw_stroke (PtrStroke stroke)
Variables
static GdkDrawable *	pCurrDrawable = NULL
static GdkGC *	pCurrGDKGC = NULL
static int	iLastPenSize = -1
static int	iLastHwColor = -1

---

Function Documentation

void draw_ink

(

PtrInk

ink

)

Copyright (C) 2005-2008 iRex Technologies B.V. All rights reserved.

Definition at line 106 of file ink_draw.c.

{
    int nStrokes;
    PtrStroke stroke = NULL;
    if (ink == NULL)
        return;

    stroke = ink->firstStroke;
    nStrokes = get_num_of_strokes (ink);
    SB_INKPRINTF("nStrokes=%d\n", nStrokes);
    if (stroke == NULL || nStrokes <= 0)
    {
        return;
    }

    while (stroke)
    {
        draw_stroke (stroke);
        stroke = stroke->nextStroke;
    }
}

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void draw_stroke

(

PtrStroke

stroke

)

Definition at line 129 of file ink_draw.c.

{
    PtrInkPoint point = NULL;
    int nPoints;
    if (stroke == NULL)
        return;

    point = stroke->firstPoint;
    nPoints = get_num_of_points (stroke);
    if (point == NULL || nPoints <= 0)
        return;

    //select pensize
    setPenSizeAtrr(stroke->iPenSize);
    //set pen color
    setPenColorAttr(&stroke->gdkColor);

    SB_INKPRINTF("(nPoints=%d)\n", nPoints);
    // only one point in the stroke
    if ( 1==nPoints )
    {
        ink_draw_line(point->x, point->y,point->x, point->y);
        return;
    }

    while (point->nextPoint)
    {
        ink_draw_line(point->x, point->y, 
                      point->nextPoint->x,point->nextPoint->y);
        point = point->nextPoint;
    }
}

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void ink_draw_line	(	int	x0,
		int	y0,
		int	x1,
		int	y1
	)

Definition at line 95 of file ink_draw.c.

{
    GdkPoint points[2];
    points[0].x=(gint)x0;
    points[0].y=(gint)y0;
    points[1].x=(gint)x1;
    points[1].y=(gint)y1;
    gdk_draw_lines(pCurrDrawable,pCurrGDKGC,points,2);
}

int ink_setDrawable

(

GdkDrawable *

pDrawable

)

Definition at line 46 of file ink_draw.c.

{
    //avoiding duplicated efforts
    if(pCurrDrawable==pDrawable) return 0;

    pCurrDrawable=pDrawable;

    if(pCurrGDKGC)
        g_object_unref(pCurrGDKGC);

    pCurrGDKGC=gdk_gc_new(pDrawable);
    if(NULL==pCurrGDKGC)
    {
        SB_INKERRPRINTF("error when create GDKGC\n");
        return -1;
    }
    SB_INKPRINTF("create gdk gc successfully\n");
    return 0;
}

gboolean setPenColorAttr

(

GdkColor *

pGdkColor

)

Definition at line 84 of file ink_draw.c.

{
    HW_COLOR iColor=Util_HWCOLORFromGdkColor(pGdkColor);
    if(iLastHwColor != iColor)
    {
        gdk_gc_set_rgb_fg_color(pCurrGDKGC,pGdkColor);
        iLastHwColor=iColor;
    }
    return TRUE;
}

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gboolean setPenSizeAtrr

(

int

iPenSize

)

Definition at line 68 of file ink_draw.c.

{
    if(iLastPenSize != iPenSize)
    {
        gdk_gc_set_line_attributes(pCurrGDKGC,
                                   iPenSize,
                                   GDK_LINE_SOLID,
                                   GDK_CAP_PROJECTING,
                                   GDK_JOIN_MITER);
        iLastPenSize=iPenSize;
    }
    return TRUE;
}

---

Variable Documentation

int iLastHwColor = -1 [static]

Definition at line 82 of file ink_draw.c.

int iLastPenSize = -1 [static]

Definition at line 66 of file ink_draw.c.

GdkDrawable* pCurrDrawable = NULL [static]

Copyright (C) 2005-2008 iRex Technologies B.V. All rights reserved.

Definition at line 43 of file ink_draw.c.

GdkGC* pCurrGDKGC = NULL [static]

Definition at line 44 of file ink_draw.c.