SliceO_Class::Interface

This method is called by sliceOmatic when the user move the mouse inside one of the 2D windows.

Syntax

int Interface_Motion(

SliceO_Window * window,

int up_down,

Point_2D * mouse_inf

) ;

Parameters

window

Pointer to the window where the event has occurred.

up_down

is an image of the 3 mouse button states. The lower byte contain a code giving the mouse button action (off, on, pressed or double clicked). The next byte give the state of each of the 3 keys as on or off. The different values for the variable are:

KEY_DBLCLK 3

KEY_PRESS 2

KEY_ON 1

KEY_OFF 0

MOUSE_KEY_LEFT 0x010

MOUSE_KEY_MIDDLE 0x020

MOUSE_KEY_RIGHT 0x040

So, for example, if you click on the left mouse button, the value of up_down will be (KEY_PRESS | MOUSE_KEY_LEFT). When you release the button the value will be KEY_OFF.

mouse_inf

Position of the cursor in infinite space.

Return value

This method return "1" if it use the event.

Remarks

The method is responsible for calling the "Motion" method for all its children. The following lines must be included at the end of the method:

...

// --- does one of the children use this event ? ---

for ( int i=0; i < m_child_nb; i++ )

if ( m_child_pt[i]->Interface_Motion( window, up_down, mouse_inf ) )

return( 1 ) ;

// --- we did not use this click ---

return( 0 ) ;

Requirements

Header:

sliceO_include.hpp

Library:

sliceO_Structures.lib

Example

Default method for SliceO_Class::Interface_Motion.

// ----------------------------------------------------------------------------

// Interface_Motion()

// param: window (SliceO_Window *) The curent window

// up_down (int) state of the mouse buttons

// mouse inf (Point_2D *) mouse pos (in "Inf" coord)

// return: (int) 1 if this event has been used

// Note: this method is only called if up_down != 0

// ----------------------------------------------------------------------------

int SliceO_Class::Interface_Motion( SliceO_Window *window, int up_down, Point_2D *mouse_inf )

{

VALIDITY_TEST_CLASS( this, "SliceO_Class::Interface_Motion" ) ;

// --- if this element is not visible get out ---

if ( ! this->Flag_Get_Bit( CLASS_MODE_THIS, window, CLASS_FLAG_VISIBLE ) )

return( 0 ) ;

int a_x, a_y ;

a_x = (int) m_inside[window->Id_Get()].min_x - 2 ;

a_x += MODE_ALL_HORIZ_SPACING+1 ;

a_x += 24 ;

a_y = (int) m_inside[window->Id_Get()].min_y ;

Region_2D region_slider( COORD_INF, a_x, a_y, a_x+MODE_ALL_SLIDER_DIM_X, a_y+MODE_ALL_SLIDER_DIM_Y ) ;

// ====================================================================

// === The slider for display one and loop ===

// ====================================================================

switch( Flag_Get_Bit( CLASS_MODE_THIS, window, CLASS_MASK_DISPLAY ) ) {

case CLASS_FLAG_ONE :

// --- for display one, the slice selection slider on the right of the icon ---

if ( region_slider.Inside( mouse_inf ) ) {

float fact = (float) MODE_ALL_SLIDER_DIM_X / (float) Child_Get_Nb() ;

int val = (int) (*mouse_inf)[0] - a_x ;

val -= (int) (fact/2) ;

val = (int) ((float) val / fact) ;

val = CLIP( 0, val, Child_Get_Nb()-1 ) ;

Fct_Change_Child( window, Child_Get_Pt( val ) ) ;

return( 1 ) ;

}

break ;

case CLASS_FLAG_LOOP :

// --- for display one, the slice selection slider on the right of the icon ---

if ( region_slider.Inside( mouse_inf ) ) {

float fact = (float) MODE_ALL_SLIDER_DIM_X / (float) 30 ;

int val = (int) (*mouse_inf)[0] - a_x ;

val -= (int) (fact/2) ;

val = (int) ((float) val / fact) ;

val = CLIP( 0, val, 29 ) ;

m_fps[window->Id_Get()] = (unsigned short) val + 1 ;

// --- set the timer ---

Fct_Loop_Start( window, this ) ;

// -- we need to redraw this level ---

Fct_Redraw( REDRAW_DB_OPENGL_AND_UP, window, this ) ;

return( 1 ) ;

}

break ;

}

// --- does one of the children use this event ? ---

for ( int i=0; i < m_child_nb; i++ )

if ( m_child_pt[i]->Interface_Motion( window, up_down, mouse_inf ) )

return( 1 ) ;

// --- by default, we do not use this event ---

return( 0 ) ;

}