Qt 实现被鼠标悬浮的图片放大显示

/**************************************************************************** ** Resource object code ** ** Created by: The Resource Compiler for Qt version 5.8.0 ** ** WARNING! All changes made in this file will be lost! *****************************************************************************/ static const unsigned char qt_resource_data[] = { // E:/visual studio 2013/Projects/QtGuiApplication1/QtGuiApplication1/resource/treeRoad.jpg 0x0,0x0,0xfd,0x2e, 0xff, 0xd8,0xff,0xe0,0x0,0x10,0x4a,0x46,0x49,0x46,0x0,0x1,0x2,0x0,0x0,0x64,0x0, 0x64,0x0,0x0,0xff,0xe1,0x0,0x58,0x45,0x78,0x69,0x66,0x0,0x0,0x49,0x49,0x2a, 0x0,0x8,0x0,0x0,0x0,0x2,0x0,0xe,0x1,0x2,0x0,0xf,0x0,0x0,0x0,0x26, 0x0,0x0,0x0,0x3b,0x1,0x2,0x0,0x1a,0x0,0x0,0x0,0x36,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x65,0x61,0x73,0x74,0x2d,0x61,0x33,0x31,0x2d,0x32,0x32,0x36,0x34, 0x35,0x36,0x4c,0x43,0x6f,0x70,0x79,0x72,0x69,0x67,0x68,0x74,0x3a,0x77,0x77,0x77, 0x2e,0x71,0x75,0x61,0x6e,0x6a,0x69,0x6e,0x67,0x2e,0x63,0x6f,0x6d,0xff,0xec,0x0, 0x11,0x44,0x75,0x63,0x6b,0x79,0x0,0x1,0x0,0x4,0x0,0x0,0x0,0x3c,0x0,0x0, 0xff,0xe1,0xd,0x36,0x68,0x74,0x74,0x70,0x3a,0x2f,0x2f,0x6e,0x73,0x2e,0x61,0x64, 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