210 lines
8.3 KiB
C
210 lines
8.3 KiB
C
/*
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* File : widget.h
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* This file is part of RT-Thread GUI Engine
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* COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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* 2009-10-04 Bernard first version
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*/
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#ifndef __RTGUI_WIDGET_H__
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#define __RTGUI_WIDGET_H__
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#include <rtgui/rtgui.h>
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#include <rtgui/list.h>
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#include <rtgui/region.h>
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#include <rtgui/event.h>
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#include <rtgui/color.h>
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#include <rtgui/font.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define RTGUI_WIDGET_FLAG_DEFAULT 0x0000
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#define RTGUI_WIDGET_FLAG_SHOWN 0x0001
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#define RTGUI_WIDGET_FLAG_DISABLE 0x0002
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#define RTGUI_WIDGET_FLAG_FOCUS 0x0004
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#define RTGUI_WIDGET_FLAG_TRANSPARENT 0x0008
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#define RTGUI_WIDGET_FLAG_FOCUSABLE 0x0010
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#define RTGUI_WIDGET_FLAG_DC_VISIBLE 0x0100
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#define RTGUI_WIDGET_FLAG_IN_ANIM 0x0200
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/* rtgui widget attribute */
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#define RTGUI_WIDGET_FOREGROUND(w) (RTGUI_WIDGET(w)->gc.foreground)
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#define RTGUI_WIDGET_BACKGROUND(w) (RTGUI_WIDGET(w)->gc.background)
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#define RTGUI_WIDGET_TEXTALIGN(w) (RTGUI_WIDGET(w)->gc.textalign)
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#define RTGUI_WIDGET_FONT(w) (RTGUI_WIDGET(w)->gc.font)
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#define RTGUI_WIDGET_FLAG(w) (RTGUI_WIDGET(w)->flag)
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#define RTGUI_WIDGET_ALIGN(w) (RTGUI_WIDGET(w)->align)
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#define RTGUI_WIDGET_BORDER(w) (RTGUI_WIDGET(w)->border)
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#define RTGUI_WIDGET_BORDER_STYLE(w) (RTGUI_WIDGET(w)->border_style)
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#define RTGUI_WIDGET_UNHIDE(w) RTGUI_WIDGET_FLAG(w) |= RTGUI_WIDGET_FLAG_SHOWN
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#define RTGUI_WIDGET_HIDE(w) RTGUI_WIDGET_FLAG(w) &= ~RTGUI_WIDGET_FLAG_SHOWN
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#define RTGUI_WIDGET_IS_HIDE(w) (!(RTGUI_WIDGET_FLAG(w) & RTGUI_WIDGET_FLAG_SHOWN))
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#define RTGUI_WIDGET_ENABLE(w) RTGUI_WIDGET_FLAG(w) &= ~RTGUI_WIDGET_FLAG_DISABLE
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#define RTGUI_WIDGET_DISABLE(w) RTGUI_WIDGET_FLAG(w) |= RTGUI_WIDGET_FLAG_DISABLE
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#define RTGUI_WIDGET_IS_ENABLE(w) (!((RTGUI_WIDGET_FLAG(w) & RTGUI_WIDGET_FLAG_DISABLE)))
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#define RTGUI_WIDGET_UNFOCUS(w) RTGUI_WIDGET_FLAG(w) &= ~RTGUI_WIDGET_FLAG_FOCUS
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#define RTGUI_WIDGET_FOCUS(w) RTGUI_WIDGET_FLAG(w) |= RTGUI_WIDGET_FLAG_FOCUS
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#define RTGUI_WIDGET_IS_FOCUSED(w) (RTGUI_WIDGET_FLAG(w) & RTGUI_WIDGET_FLAG_FOCUS)
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#define RTGUI_WIDGET_IS_FOCUSABLE(w) (RTGUI_WIDGET_FLAG(w) & RTGUI_WIDGET_FLAG_FOCUSABLE)
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#define RTGUI_WIDGET_SET_UNFOCUSABLE(w) RTGUI_WIDGET_FLAG(w) &= ~RTGUI_WIDGET_FLAG_FOCUSABLE
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#define RTGUI_WIDGET_IS_DC_VISIBLE(w) (RTGUI_WIDGET_FLAG(w) & RTGUI_WIDGET_FLAG_DC_VISIBLE)
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#define RTGUI_WIDGET_DC_SET_VISIBLE(w) RTGUI_WIDGET_FLAG(w) |= RTGUI_WIDGET_FLAG_DC_VISIBLE
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#define RTGUI_WIDGET_DC_SET_UNVISIBLE(w) RTGUI_WIDGET_FLAG(w) &= ~RTGUI_WIDGET_FLAG_DC_VISIBLE
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#define RTGUI_WIDGET_DC(w) ((struct rtgui_dc*)&((w)->dc_type))
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DECLARE_CLASS_TYPE(widget);
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/** Gets the type of a widget */
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#define RTGUI_WIDGET_TYPE (RTGUI_TYPE(widget))
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/** Casts the object to a rtgui_widget */
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#define RTGUI_WIDGET(obj) (RTGUI_OBJECT_CAST((obj), RTGUI_WIDGET_TYPE, rtgui_widget_t))
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/** Check if the object is a rtgui_widget */
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#define RTGUI_IS_WIDGET(obj) (RTGUI_OBJECT_CHECK_TYPE((obj), RTGUI_WIDGET_TYPE))
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/*
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* the base widget object
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*/
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struct rtgui_widget
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{
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/* inherit from rtgui_object */
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struct rtgui_object object;
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/* the widget that contains this widget */
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struct rtgui_widget *parent;
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/* the window that contains this widget */
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struct rtgui_win *toplevel;
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/* the widget children and sibling */
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rtgui_list_t sibling;
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/* widget flag */
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rt_int32_t flag;
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/* hardware device context */
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rt_uint32_t dc_type;
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const struct rtgui_dc_engine *dc_engine;
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/* the graphic context of widget */
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rtgui_gc_t gc;
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/* the widget extent */
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rtgui_rect_t extent;
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/* the visiable extent (includes the rectangles of children) */
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rtgui_rect_t extent_visiable;
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/* the rect clip information */
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rtgui_region_t clip;
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/* minimal width and height of widget */
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rt_int16_t min_width, min_height;
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/* widget align */
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rt_int32_t align;
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rt_uint16_t border;
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rt_uint16_t border_style;
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/* call back */
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rt_bool_t (*on_focus_in)(struct rtgui_object *widget, struct rtgui_event *event);
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rt_bool_t (*on_focus_out)(struct rtgui_object *widget, struct rtgui_event *event);
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/* user private data */
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rt_uint32_t user_data;
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};
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typedef struct rtgui_widget rtgui_widget_t;
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rtgui_widget_t *rtgui_widget_create(const rtgui_type_t *widget_type);
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void rtgui_widget_destroy(rtgui_widget_t *widget);
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rt_bool_t rtgui_widget_event_handler(struct rtgui_object *object, rtgui_event_t *event);
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/* focus and unfocus */
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void rtgui_widget_focus(rtgui_widget_t *widget);
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void rtgui_widget_unfocus(rtgui_widget_t *widget);
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/* event handler for each command */
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void rtgui_widget_set_onfocus(rtgui_widget_t *widget, rtgui_event_handler_ptr handler);
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void rtgui_widget_set_onunfocus(rtgui_widget_t *widget, rtgui_event_handler_ptr handler);
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/* get and set rect of widget */
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void rtgui_widget_get_rect(rtgui_widget_t *widget, rtgui_rect_t *rect);
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void rtgui_widget_set_border(rtgui_widget_t *widget, rt_uint32_t style);
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void rtgui_widget_set_rect(rtgui_widget_t *widget, const rtgui_rect_t *rect);
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void rtgui_widget_set_rectangle(rtgui_widget_t *widget, int x, int y, int width, int height);
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void rtgui_widget_get_extent(rtgui_widget_t *widget, rtgui_rect_t *rect);
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void rtgui_widget_set_minsize(rtgui_widget_t *widget, int width, int height);
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void rtgui_widget_set_minwidth(rtgui_widget_t *widget, int width);
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void rtgui_widget_set_minheight(rtgui_widget_t *widget, int height);
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void rtgui_widget_set_parent(rtgui_widget_t *widget, rtgui_widget_t *parent);
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/* get the physical position of a logic point on widget */
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void rtgui_widget_point_to_device(rtgui_widget_t *widget, rtgui_point_t *point);
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/* get the physical position of a logic rect on widget */
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void rtgui_widget_rect_to_device(rtgui_widget_t *widget, rtgui_rect_t *rect);
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/* get the logic position of a physical point on widget */
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void rtgui_widget_point_to_logic(rtgui_widget_t *widget, rtgui_point_t *point);
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/* get the logic position of a physical rect on widget */
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void rtgui_widget_rect_to_logic(rtgui_widget_t *widget, rtgui_rect_t *rect);
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void rtgui_widget_clip_parent(rtgui_widget_t *widget);
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void rtgui_widget_clip_return(rtgui_widget_t *widget);
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/* move widget and its children to a logic point */
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void rtgui_widget_move_to_logic(rtgui_widget_t *widget, int dx, int dy);
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/* update the clip info of widget */
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void rtgui_widget_update_clip(rtgui_widget_t *widget);
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/* get the toplevel widget of widget */
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struct rtgui_win *rtgui_widget_get_toplevel(rtgui_widget_t *widget);
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rt_bool_t rtgui_widget_onupdate_toplvl(struct rtgui_object *object, struct rtgui_event *event);
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void rtgui_widget_show(rtgui_widget_t *widget);
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rt_bool_t rtgui_widget_onshow(struct rtgui_object *object, struct rtgui_event *event);
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void rtgui_widget_hide(rtgui_widget_t *widget);
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rt_bool_t rtgui_widget_onhide(struct rtgui_object *object, struct rtgui_event *event);
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void rtgui_widget_update(rtgui_widget_t *widget);
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rt_bool_t rtgui_widget_onpaint(struct rtgui_object *object, struct rtgui_event *event);
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/* get parent color */
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rtgui_color_t rtgui_widget_get_parent_foreground(rtgui_widget_t *widget);
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rtgui_color_t rtgui_widget_get_parent_background(rtgui_widget_t *widget);
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/* get the next sibling of widget */
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rtgui_widget_t *rtgui_widget_get_next_sibling(rtgui_widget_t *widget);
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/* get the prev sibling of widget */
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rtgui_widget_t *rtgui_widget_get_prev_sibling(rtgui_widget_t *widget);
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rt_bool_t rtgui_widget_is_in_animation(rtgui_widget_t *widget);
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/* dump widget information */
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void rtgui_widget_dump(rtgui_widget_t *widget);
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#ifdef __cplusplus
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}
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#endif
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#endif
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