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#ifndef __EZ_SCROLLBAR_H__
#define __EZ_SCROLLBAR_H__
/*
Copyright (C) 2007 ezQuake team
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
$Id: ez_scrollbar.h,v 1.55 2007-10-27 14:51:15 cokeman1982 Exp $
*/
#include "ez_controls.h"
#include "ez_button.h"
// =========================================================================================
// Scrollbar
// =========================================================================================
typedef enum ez_orientation_s
{
vertical = 0,
horizontal = 1
} ez_orientation_t;
typedef enum ez_scrollbar_flags_e
{
target_parent = (1 << 0)
} ez_scrollbar_flags_t;
typedef enum ez_scrollbar_iflags_e
{
sliding = (1 << 0),
scrolling = (1 << 1)
} ez_scrollbar_iflags_t;
typedef struct ez_scrollbar_eventcount_s
{
int OnTargetChanged;
} ez_scrollbar_eventcount_t;
typedef struct ez_scrollbar_events_s
{
ez_event_fp OnTargetChanged;
} ez_scrollbar_events_t;
typedef struct ez_scrollbar_eventhandlers_s
{
ez_eventhandler_t *OnTargetChanged;
} ez_scrollbar_eventhandlers_t;
typedef struct ez_scrollbar_s
{
ez_control_t super; // The super class.
ez_scrollbar_events_t events;
ez_scrollbar_eventhandlers_t event_handlers;
ez_scrollbar_eventcount_t inherit_levels;
ez_scrollbar_eventcount_t override_counts;
ez_button_t *back; // Up / left button depending on the scrollbars orientation.
ez_button_t *slider; // The slider button.
ez_button_t *forward; // Down / right button.
ez_orientation_t orientation; // The orientation of the scrollbar, vertical / horizontal.
int scroll_area; // The width or height (depending on orientation) of the area between
// the forward/back buttons. That is, the area you can move the slider in.
int slider_minsize; // The minimum size of the slider button.
int scroll_delta_x; // How much should the scrollbar scroll it's parent when the scroll buttons are pressed?
int scroll_delta_y;
ez_control_t *target; // The target of the scrollbar if the parent isn't targeted (ext_flag & target_parent).
ez_scrollbar_flags_t ext_flags; // External flags for the scrollbar.
ez_scrollbar_iflags_t int_flags; // The internal flags for the scrollbar.
} ez_scrollbar_t;
//
// Scrollbar - Creates a new scrollbar and initializes it.
//
ez_scrollbar_t *EZ_scrollbar_Create(ez_tree_t *tree, ez_control_t *parent,
char *name, char *description,
int x, int y, int width, int height,
ez_control_flags_t flags);
//
// Scrollbar - Initializes a scrollbar.
//
void EZ_scrollbar_Init(ez_scrollbar_t *scrollbar, ez_tree_t *tree, ez_control_t *parent,
char *name, char *description,
int x, int y, int width, int height,
ez_control_flags_t flags);
//
// Scrollbar - Destroys the scrollbar.
//
int EZ_scrollbar_Destroy(ez_control_t *self, qbool destroy_children);
//
// Scrollbar - Set the target control that the scrollbar should scroll.
//
void EZ_scrollbar_SetTarget(ez_scrollbar_t *scrollbar, ez_control_t *target);
//
// Scrollbar - Set if the scrollbar should be vertical or horizontal.
//
void EZ_scrollbar_SetIsVertical(ez_scrollbar_t *scrollbar, qbool is_vertical);
//
// Scrollbar - Sets if the target for the scrollbar should be it's parent, or a specified target control.
// (The target controls OnScroll event handler will be used if it's not the parent)
//
void EZ_scrollbar_SetTargetIsParent(ez_scrollbar_t *scrollbar, qbool targetparent);
//
// Scrollbar - The target of the scrollbar changed.
//
int EZ_scrollbar_OnTargetChanged(ez_control_t *self, void *ext_event_info);
//
// Scrollbar - OnResize event.
//
int EZ_scrollbar_OnResize(ez_control_t *self, void *ext_event_info);
//
// Scrollbar - OnParentResize event.
//
int EZ_scrollbar_OnParentResize(ez_control_t *self, void *ext_event_info);
//
// Scrollbar - OnMouseDown event.
//
int EZ_scrollbar_OnMouseDown(ez_control_t *self, mouse_state_t *ms);
//
// Scrollbar - OnMouseUpOutside event.
//
int EZ_scrollbar_OnMouseUpOutside(ez_control_t *self, mouse_state_t *ms);
//
// Scrollbar - Mouse event.
//
int EZ_scrollbar_OnMouseEvent(ez_control_t *self, mouse_state_t *ms);
//
// Scrollbar - OnParentScroll event.
//
int EZ_scrollbar_OnParentScroll(ez_control_t *self, void *ext_event_info);
#endif // __EZ_SCROLLBAR_H__
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