mreでのコントロール実装(三、Button実装)
buttonコントロールを実装します.他のコントロールクラスはこのように書きます.
//button.h
#ifndef __BUTTON_H__
#define __BUTTON_H__
#include "widget.h"
typedef void (*ButtonOnClickedFunc)(void* param1, void* param2);
typedef enum _ButtonStyle
{
ButtonStyle1,
ButtonStyle2,
ButtonStyleMax
} ButtonStyle;
/*
* ：button_create
* ：
* ：
*/
Widget* button_create(int id, Rect rect, int* layer, char* text);
/*
* ：button_set_on_clicked_func
* ：
* ：
*/
void button_set_on_clicked_func(Widget* thiz, ButtonOnClickedFunc on_clicked, void* param1, void* param2);
/*
* ：button_set_font_size
* ：
* ：
*/
void button_set_font_size(Widget* thiz, font_size_t size);
/*
* ：button_set_style
* ：
* ：
*/
void button_set_style(Widget* thiz, ButtonStyle style);
/*
* ：button_set_text
* ：
* ：
*/
void button_set_text(Widget* thiz, char* text);
#endif /*__BUTTON_H__*/
//button.c
#include "button.h"
struct _ButtonExtra;
typedef struct _ButtonExtra ButtonExtra;
#define BUTTON_MAX_TEXT 0x20
typedef enum _ButtonState
{
BUTTON_NORMAL,
BUTTON_PUSHDOWN,
BUTTON_STATE_MAX
} ButtonState;
struct _ButtonExtra
{
char text[BUTTON_MAX_TEXT];
font_size_t fone_size;
ButtonStyle style;
ButtonState state;
ButtonOnClickedFunc on_clicked;
void* param1;
void* param2;
};
static int button_on_key_event(Widget* thiz, int event, int keycode)
{
ButtonExtra* extra = NULL;
if(thiz == NULL || !widget_is_visible(thiz) || NULL == thiz->extra || !widget_is_focus(thiz))
return FALSE;
extra = (ButtonExtra*)thiz->extra;
if(VM_KEY_EVENT_DOWN == event)
{
switch(keycode)
{
case VM_KEY_OK:
extra->state = BUTTON_PUSHDOWN;
break;
default:
break;
}
}
else if(VM_KEY_EVENT_UP == event)
{
switch(keycode)
{
case VM_KEY_OK:
extra->state = BUTTON_NORMAL;
if(extra && extra->on_clicked)
extra->on_clicked(extra->param1, extra->param2);
break;
default:
break;
}
}
return TRUE;
}
static int button_on_pen_event(Widget* thiz, int event, int x, int y)
{
ButtonExtra* extra = NULL;
if(NULL == thiz || !widget_is_visible(thiz) || NULL == thiz->extra)
return FALSE;
extra = (ButtonExtra*)thiz->extra;
if(VM_PEN_EVENT_TAP == event)
{
if(widget_is_point_in_area(thiz, x, y))
extra->state = BUTTON_PUSHDOWN;
}
else if(BUTTON_PUSHDOWN == extra->state && VM_PEN_EVENT_RELEASE == event)
{
extra->state = BUTTON_NORMAL;
if(extra->on_clicked)
extra->on_clicked(extra->param1, extra->param2);
}
return TRUE;
}
static int button_on_paint(Widget* thiz)
{
ButtonExtra* extra = NULL;
VMWCHAR button_name[BUTTON_MAX_TEXT] = {0};
VMINT wstr_width, wstr_height;
VMINT x_pos = widget_get_x_pos_abs(thiz);
VMINT y_pos = widget_get_y_pos_abs(thiz);
VMINT height = widget_get_height(thiz);
VMINT width = widget_get_width(thiz);
int* layer = widget_get_layer(thiz);
int layer_hd = layer[widget_get_layer_index(thiz)];
vm_graphic_color start_color;
vm_graphic_color end_color;
vm_graphic_color color;
if(NULL == thiz || !widget_is_visible(thiz) || NULL == thiz->extra)
return FALSE;
extra = (ButtonExtra*)thiz->extra;
vm_graphic_set_font(extra->fone_size);
vm_gb2312_to_ucs2(button_name, BUTTON_MAX_TEXT, extra->text);
wstr_width = vm_graphic_get_string_width(button_name);
wstr_height = vm_graphic_get_string_height(button_name);
if(ButtonStyle1 == extra->style)
{
if(BUTTON_NORMAL == extra->state)
{
end_color.vm_color_565 = VM_COLOR_888_TO_565(130, 130, 130);
start_color.vm_color_565 = VM_COLOR_888_TO_565(210, 210, 210);
}
else if(BUTTON_PUSHDOWN == extra->state)
{
end_color.vm_color_565 = VM_COLOR_888_TO_565(70, 70, 70);
start_color.vm_color_565 = VM_COLOR_888_TO_565(130, 130, 130);
}
color.vm_color_565 = VM_COLOR_BLACK;
vm_graphic_setcolor(&color);
vm_graphic_gradient_paint_rect(layer_hd, x_pos + 1, y_pos + 1, x_pos + width - 2, y_pos + height - 2, start_color, end_color, VM_GDI_GP_VER);
vm_graphic_roundrect_ex(layer_hd, x_pos, y_pos, width, height, 5);
vm_graphic_textout_to_layer(layer_hd, x_pos + width/2 - wstr_width/2 - 4, y_pos + height/2 - wstr_height/2 - 3, button_name, vm_wstrlen(button_name));
}
else if(ButtonStyle2 == extra->style)
{
}
vm_graphic_set_font(VM_MEDIUM_FONT);
return TRUE;
}
static int button_on_destroy(Widget* thiz)
{
return_val_if_fail(NULL != (int)thiz, -1);
if(thiz->extra)
WBH_FREE(thiz->extra);
widget_deinit(thiz);
WBH_FREE(thiz);
}
void button_set_on_clicked_func(Widget* thiz, ButtonOnClickedFunc on_clicked, void* param1, void* param2)
{
ButtonExtra* extra = (ButtonExtra*)thiz->extra;
extra->on_clicked = on_clicked;
extra->param1 = param1;
extra->param2 = param2;
}
void button_set_font_size(Widget* thiz, font_size_t size)
{
ButtonExtra* extra = (ButtonExtra*)thiz->extra;
extra->fone_size = size;
}
void button_set_style(Widget* thiz, ButtonStyle style)
{
ButtonExtra* extra = (ButtonExtra*)thiz->extra;
extra->style = style;
}
void button_set_text(Widget* thiz, char* text)
{
ButtonExtra* extra = (ButtonExtra*)thiz->extra;
if(NULL == text || 0 == strlen(text))
return;
memset(extra->text, 0, sizeof(extra->text));
strncpy(extra->text, text, sizeof(extra->text));
}
Widget* button_create(int id, Rect rect, int* layer, char* text)
{
Widget* thiz = NULL;
ButtonExtra* extra = NULL;
thiz = WBH_MALLOC(sizeof(Widget));
extra = WBH_MALLOC(sizeof(ButtonExtra));
extra->fone_size = VM_MEDIUM_FONT;
extra->style = ButtonStyle1;
strncpy(extra->text, text, sizeof(extra->text));
thiz->extra = (void*)extra;
thiz->on_key_event = button_on_key_event;
thiz->on_pen_event = button_on_pen_event;
thiz->on_paint = button_on_paint;
thiz->on_destroy = button_on_destroy;
widget_init(thiz, CONTROL_TYPE_BUTTON, id, rect, layer);
return thiz;
}