GdkRectangle *world_to_real_rect (WorldRectangle *rcWorld, GdkRectangle *rcReal)
{
rcReal->x = world_to_real_x (rcWorld->xWorld) ;
rcReal->y = world_to_real_y (rcWorld->yWorld) ;
rcReal->width = world_to_real_cx (rcWorld->cxWorld) ;
rcReal->height = world_to_real_cy (rcWorld->cyWorld) ;
return rcReal ;
}
static void draw (QCADDesignObject *obj, GdkDrawable *dst, GdkFunction rop, GdkRectangle *rcClip)
{
int Nix, Nix1 ;
GdkGC *gc = NULL ;
GdkRectangle rcReal ;
GdkPoint ptSrc, ptDst ;
QCADRectangleElectrode *rc_electrode = QCAD_RECTANGLE_ELECTRODE (obj) ;
GdkColor *clr = NULL ;
world_to_real_rect (&(obj->bounding_box), &rcReal) ;
if (!RECT_INTERSECT_RECT (rcReal.x, rcReal.y, rcReal.width, rcReal.height, rcClip->x, rcClip->y, rcClip->width, rcClip->height))
return ;
clr = obj->bSelected ? clr_idx_to_clr_struct (RED) : &(obj->clr) ;
gc = gdk_gc_new (dst) ;
gdk_gc_set_foreground (gc, clr) ;
gdk_gc_set_background (gc, clr) ;
gdk_gc_set_function (gc, rop) ;
gdk_gc_set_clip_rectangle (gc, rcClip) ;
ptSrc.x = world_to_real_x (rc_electrode->precompute_params.pt[0].xWorld) ;
ptSrc.y = world_to_real_y (rc_electrode->precompute_params.pt[0].yWorld) ;
ptDst.x = world_to_real_x (rc_electrode->precompute_params.pt[1].xWorld) ;
ptDst.y = world_to_real_y (rc_electrode->precompute_params.pt[1].yWorld) ;
gdk_draw_line (dst, gc, ptSrc.x, ptSrc.y, ptDst.x, ptDst.y) ;
ptSrc = ptDst ;
ptDst.x = world_to_real_x (rc_electrode->precompute_params.pt[2].xWorld) ;
ptDst.y = world_to_real_y (rc_electrode->precompute_params.pt[2].yWorld) ;
gdk_draw_line (dst, gc, ptSrc.x, ptSrc.y, ptDst.x, ptDst.y) ;
ptSrc = ptDst ;
ptDst.x = world_to_real_x (rc_electrode->precompute_params.pt[3].xWorld) ;
ptDst.y = world_to_real_y (rc_electrode->precompute_params.pt[3].yWorld) ;
gdk_draw_line (dst, gc, ptSrc.x, ptSrc.y, ptDst.x, ptDst.y) ;
ptSrc = ptDst ;
ptDst.x = world_to_real_x (rc_electrode->precompute_params.pt[0].xWorld) ;
ptDst.y = world_to_real_y (rc_electrode->precompute_params.pt[0].yWorld) ;
gdk_draw_line (dst, gc, ptSrc.x, ptSrc.y, ptDst.x, ptDst.y) ;
for (Nix = 0 ; Nix < rc_electrode->n_x_divisions ; Nix++)
for (Nix1 = 0 ; Nix1 < rc_electrode->n_y_divisions ; Nix1++)
{
ptSrc.x = world_to_real_x (exp_array_index_2d (rc_electrode->precompute_params.pts, WorldPoint, Nix1, Nix).xWorld) ;
ptSrc.y = world_to_real_y (exp_array_index_2d (rc_electrode->precompute_params.pts, WorldPoint, Nix1, Nix).yWorld) ;
if (PT_IN_RECT (ptSrc.x, ptSrc.y, rcClip->x, rcClip->y, rcClip->width, rcClip->height))
gdk_draw_point (dst, gc, ptSrc.x, ptSrc.y) ;
}
g_object_unref (gc) ;
}
static void draw (QCADDesignObject *obj, GdkDrawable *dst, GdkFunction rop)
{
GdkGC *gc = NULL ;
GdkRectangle rcReal ;
QCADRuler *ruler = QCAD_RULER (obj) ;
double
dCurrentGrad = 0 ;
int iPowerOfTen = 0 ;
int idx = -1 ;
gboolean bVertical = (QCAD_RULER_ORIENTATION_EAST == ruler->orientation || QCAD_RULER_ORIENTATION_WEST == ruler->orientation) ;
QCADLabel *lblGrad = NULL ;
world_to_real_rect (&(ruler->ruler_bounding_box), &rcReal) ;
gc = gdk_gc_new (dst) ;
gdk_gc_set_function (gc, rop) ;
gdk_gc_set_foreground (gc, &(obj->clr)) ;
// Graduation lines should be at least MIN_GRADATION_DISTANCE_PIXELS pixels apart
iPowerOfTen =
(int)ceil (log10 (bVertical
? real_to_world_cy (MIN_GRADATION_DISTANCE_PIXELS)
: real_to_world_cx (MIN_GRADATION_DISTANCE_PIXELS))) ;
ruler->icLabelsVisible = 0 ;
if (bVertical)
{
int xBeg = 0, xEnd = 0, xMid = 0, yReal = 0.0 ;
double xBegWorld, xEndWorld, xMidWorld, yWorld ;
if (QCAD_RULER_ORIENTATION_WEST == ruler->orientation)
{
xBeg = world_to_real_x (xBegWorld = ruler->ruler_bounding_box.xWorld),
xEnd = world_to_real_x (xEndWorld = ruler->ruler_bounding_box.xWorld + ruler->ruler_bounding_box.cxWorld) ;
}
else
{
xBeg = world_to_real_x (xBegWorld = ruler->ruler_bounding_box.xWorld + ruler->ruler_bounding_box.cxWorld),
xEnd = world_to_real_x (xEndWorld = ruler->ruler_bounding_box.xWorld) ;
}
xMid = world_to_real_x (xMidWorld = ruler->ruler_bounding_box.xWorld + ruler->ruler_bounding_box.cxWorld / 2.0) ;
for (dCurrentGrad = 0 ; dCurrentGrad < ruler->ruler_bounding_box.cyWorld ; dCurrentGrad += pow (10, iPowerOfTen))
{
idx++ ;
idx %= 10 ;
yReal = world_to_real_y (yWorld = ruler->ruler_bounding_box.yWorld + dCurrentGrad) ;
gdk_draw_line (dst, gc, xBeg, yReal, (0 == idx ? xEnd : xMid), yReal) ;
if (0 == idx)
{
lblGrad = get_label_from_array (ruler->labels, (ruler->icLabelsVisible)++, dCurrentGrad, &(obj->clr)) ;
qcad_label_shrinkwrap (lblGrad) ;
qcad_design_object_move_to (QCAD_DESIGN_OBJECT (lblGrad), xEndWorld, yWorld) ;
qcad_design_object_draw (QCAD_DESIGN_OBJECT (lblGrad), dst, rop) ;
}
}
gdk_draw_line (dst, gc, xBeg, rcReal.y, xBeg, rcReal.y + rcReal.height) ;
lblGrad = get_label_from_array (ruler->labels, (ruler->icLabelsVisible)++, ruler->ruler_bounding_box.cyWorld, &(obj->clr)) ;
qcad_label_shrinkwrap (lblGrad) ;
qcad_design_object_move_to (QCAD_DESIGN_OBJECT (lblGrad), xBegWorld, ruler->ruler_bounding_box.yWorld + ruler->ruler_bounding_box.cyWorld) ;
qcad_design_object_draw (QCAD_DESIGN_OBJECT (lblGrad), dst, rop) ;
}
else
{
int yBeg = 0, yEnd = 0, yMid = 0, xReal = 0.0 ;
double yBegWorld, yEndWorld, yMidWorld, xWorld ;
if (QCAD_RULER_ORIENTATION_NORTH == ruler->orientation)
{
yBeg = world_to_real_y (yBegWorld = ruler->ruler_bounding_box.yWorld),
yEnd = world_to_real_y (yEndWorld = ruler->ruler_bounding_box.yWorld + ruler->ruler_bounding_box.cyWorld) ;
}
else
{
yBeg = world_to_real_y (yBegWorld = ruler->ruler_bounding_box.yWorld + ruler->ruler_bounding_box.cyWorld),
yEnd = world_to_real_y (yEndWorld = ruler->ruler_bounding_box.yWorld) ;
}
yMid = world_to_real_y (yMidWorld = ruler->ruler_bounding_box.yWorld + ruler->ruler_bounding_box.cyWorld / 2.0) ;
for (dCurrentGrad = 0 ; dCurrentGrad < ruler->ruler_bounding_box.cxWorld ; dCurrentGrad += pow (10, iPowerOfTen))
{
idx++ ;
idx %= 10 ;
xReal = world_to_real_x (xWorld = ruler->ruler_bounding_box.xWorld + dCurrentGrad) ;
gdk_draw_line (dst, gc, xReal, yBeg, xReal, (0 == idx ? yEnd : yMid)) ;
if (0 == idx)
{
lblGrad = get_label_from_array (ruler->labels, (ruler->icLabelsVisible)++, dCurrentGrad, &(obj->clr)) ;
qcad_label_shrinkwrap (lblGrad) ;
qcad_design_object_move_to (QCAD_DESIGN_OBJECT (lblGrad), xWorld, yEndWorld) ;
qcad_design_object_draw (QCAD_DESIGN_OBJECT (lblGrad), dst, rop) ;
}
}
gdk_draw_line (dst, gc, rcReal.x, yBeg, rcReal.x + rcReal.width, yBeg) ;
lblGrad = get_label_from_array (ruler->labels, (ruler->icLabelsVisible)++, ruler->ruler_bounding_box.cxWorld, &(obj->clr)) ;
qcad_label_shrinkwrap (lblGrad) ;
qcad_design_object_move_to (QCAD_DESIGN_OBJECT (lblGrad), ruler->ruler_bounding_box.xWorld + ruler->ruler_bounding_box.cxWorld, yBegWorld) ;
qcad_design_object_draw (QCAD_DESIGN_OBJECT (lblGrad), dst, rop) ;
}
g_object_unref (gc) ;
}
