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增强μC/GUI-v3.90a下2色scrollbar显示效果
2色下scrollbar显示效果不太理想,做如下修改可以使显示效果提高一些,
效果图:
//1.向scrollbar.c添加头文件
#include "LCDConf.h"
//2.修改scrollbar.c->_Paint()函数
static void _Paint(SCROLLBAR_Obj* pObj) {
int ArrowSize, ArrowOff;
SCROLLBAR_POSITIONS Pos;
GUI_RECT r, rClient;
/*
Get / calc position info
*/
_CalcPositions(pObj, &Pos);
WIDGET__GetClientRect(&pObj->Widget, &rClient);
r = rClient;
//2007-09-14 gliethttp 单色屏支持
#if (LCD_BITSPERPIXEL == 1)
LCD_SetColor(GUI_BLACK);
GUI_Clear();
#endif
ArrowSize = ((r.y1 - r.y0) /3) - 1;
ArrowOff = 3 + ArrowSize+ ArrowSize/3;
/*
Draw left Arrow
*/
LCD_SetColor(pObj->aColor[0]);
r = rClient;
r.x0 = Pos.x0_LeftArrow;
r.x1 = Pos.x1_LeftArrow;
WIDGET__FillRectEx(&pObj->Widget, &r);
LCD_SetColor(pObj->aBkColor[1]);
_DrawTriangle(&pObj->Widget, r.x0 + ArrowOff, (r.y1 - r.y0) >> 1, ArrowSize, -1);
//2007-09-14 gliethttp 单色屏支持
WIDGET__EFFECT_DrawUpRect(&pObj->Widget, &r);
/*
Draw the thumb area which is not covered by the thumb
*/
#define LCD_BITSPERPIXELF 1
#if (LCD_BITSPERPIXEL == 1) && LCD_BITSPERPIXELF
LCD_SetColor(GUI_BLACK);
#else
LCD_SetColor(pObj->aBkColor[0]);
#endif
r.x0 = Pos.x1_LeftArrow + 1;
r.x1 = Pos.x0_Thumb - 1;
WIDGET__FillRectEx(&pObj->Widget, &r);
r = rClient;
r.x0 = Pos.x1_Thumb + 1;
r.x1 = Pos.x0_RightArrow - 1;
WIDGET__FillRectEx(&pObj->Widget, &r);
/*
Draw Thumb
*/
r = rClient;
r.x0 = Pos.x0_Thumb;
r.x1 = Pos.x1_Thumb;
#if (LCD_BITSPERPIXEL == 1) && LCD_BITSPERPIXELF
{
LCD_SetColor(GUI_WHITE);
if (pObj->Widget.State & WIDGET_STATE_VERTICAL)
WIDGET__RotateRect90(&pObj->Widget, &r, &r);
r.x0+=3;
r.x1-=3;
r.y0-=1;
GUI_FillRectEx(&r);
r = rClient;//恢复
}
#else
LCD_SetColor(pObj->aColor[0]);
WIDGET__FillRectEx(&pObj->Widget, &r);
#endif
WIDGET__EFFECT_DrawUpRect(&pObj->Widget, &r);
/*
Draw right Arrow
*/
LCD_SetColor(pObj->aColor[0]);
r.x0 = Pos.x0_RightArrow;
r.x1 = Pos.x1_RightArrow;
WIDGET__FillRectEx(&pObj->Widget, &r);
LCD_SetColor(pObj->aBkColor[1]);
_DrawTriangle(&pObj->Widget, r.x1 - ArrowOff, (r.y1 - r.y0) >> 1, ArrowSize, 1);
WIDGET__EFFECT_DrawUpRect(&pObj->Widget, &r);
/*
Draw overlap area (if any ...)
*/
if (Pos.x1_RightArrow != Pos.x1) {
r.x0 = Pos.x1_RightArrow + 1;
r.x1 = Pos.x1;
LCD_SetColor(pObj->aColor[0]);
WIDGET__FillRectEx(&pObj->Widget, &r);
}
#if (LCD_BITSPERPIXEL == 1) && LCD_BITSPERPIXELF
{//SCROLLBAR_POSITIONS
LCD_SetBkColor(GUI_BLACK);
LCD_SetColor(GUI_WHITE);
r = rClient;
if(pObj->Widget.State & WIDGET_STATE_VERTICAL) {
WIDGET__RotateRect90(&pObj->Widget, &r, &r);
}
r.x0++;
r.x1--;
r.y1--;
GUI_DrawRect(r.x0,r.y0,r.x1,r.y1);
}
#endif
}
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