codeblocks+wxWidgets绘图
最近要用codeblocks+wxWidgets做一个实验的结果图,采用的版本是codeblocksSVN完美配置绿色版,SVN6852,下载地址http://bt.neu6.edu.cn/viewthread.php?tid=692508&highlight=codeblocks
之所以采用这个版本是因为不需配置,方便快速做完现在手头上的东西。
新建工程,选择wxWidgets Project:
第一步之后是一个欢迎界面,无需理会,next;
弹出窗口提示选择wxWidgets的版本,我下的版本集成了2.8.x,选好后点击next;
设置路径和工程名:
输入作者信息,不理会,next;
选择使用的GUI类型,我做的功能比较简单,直接选None,next
输入wxWidgets的路径,由于利用了绿色版,也无需设置,保留$(#wx)这个全局符号,继续一路next;
最后工程建好,工程列表如下:
替换wxDrawApp.cpp中的内容:
#include "wxDrawApp.h"
//(*AppHeaders
#include "wxDrawMain.h"
#include <wx/image.h>
IMPLEMENT_APP(MyApp)
bool MyApp::OnInit()
{
Line *line = new Line(wxT("Line"));
line->Show(true);
return true;
}
更改wxDrawMain.cpp中的内容:
#include "wxDrawMain.h"
Line::Line(const wxString& title)
: wxFrame(NULL, wxID_ANY, title, wxDefaultPosition, wxSize(280, 180))
{
this->Connect(wxEVT_PAINT, wxPaintEventHandler(Line::OnPaint));
this->Centre();
}
void Line::OnPaint(wxPaintEvent& event)
{
wxPaintDC dc(this);
// 绘制线段
wxCoord x1 = 50, y1 = 60;
wxCoord x2 = 190, y2 = 60;
dc.DrawLine(x1, y1, x2, y2);
}
更改wxDrawApp.h中的内容:
#include <wx/wx.h>
class MyApp : public wxApp
{
public:
virtual bool OnInit();
};
更改wxDrawMain.h中的内容:
#include <wx/wx.h>
class Line : public wxFrame
{
public:
Line(const wxString& title);
void OnPaint(wxPaintEvent& event);
};
这些代码任何有过一点MFC、C++经验的人都可以看懂,新建了一个Line类,重载了库中的OnPaint函数,完成绘制一条线段的功能;
效果如下:
OnPaint响应函数中的内容可以进行修改,完成各种复杂的绘制,下面粘贴一点有用的代码实例:
void Line::OnPaint(wxPaintEvent& event)
{
wxPaintDC dc(this);
// 绘制线段
wxCoord x1 = 50, y1 = 60;
wxCoord x2 = 190, y2 = 60;
dc.DrawLine(x1, y1, x2, y2);
// 添加文字
dc.DrawText(wxT("fjsadk"), 40, 60);
dc.DrawText(wxT("fwefdecd"), 70, 80);
// 点
dc.DrawPoint(10,10);
dc.DrawPoint(10,20);
dc.DrawPoint(20,10);
dc.DrawPoint(20,20);
// 画笔
wxColour col1, col2;
col1.Set(wxT("#0c0c0c"));
col2.Set(wxT("#000000"));
wxBrush brush(wxColour(255, 255, 255), wxTRANSPARENT);
dc.SetBrush(brush);
dc.SetPen(wxPen(col1, 1, wxSOLID));
dc.DrawRectangle(10, 15, 90, 60);
dc.SetPen(wxPen(col1, 1, wxDOT));
dc.DrawRectangle(130, 15, 90, 60);
dc.SetPen(wxPen(col1, 1, wxLONG_DASH));
dc.DrawRectangle(250, 15, 90, 60);
dc.SetPen(wxPen(col1, 1, wxSHORT_DASH));
dc.DrawRectangle(10, 105, 90, 60);
dc.SetPen(wxPen(col1, 1, wxDOT_DASH));
dc.DrawRectangle(130, 105, 90, 60);
dc.SetPen(wxPen(col1, 1, wxTRANSPARENT));
dc.DrawRectangle(250, 105, 90, 60);
// 绘制图形
wxColour gray, white, red, blue;
wxColour orange, green, brown;
gray.Set(wxT("#d4d4d4"));
white.Set(wxT("#ffffff"));
red.Set(wxT("#ff0000"));
orange.Set(wxT("#fa8e00"));
green.Set(wxT("#619e1b"));
brown.Set(wxT("#715b33"));
blue.Set(wxT("#0d0060"));
dc.SetPen(wxPen(gray));
dc.DrawRectangle(20, 20, 50, 50);
dc.DrawRectangle(30, 40, 50, 50);
dc.SetBrush(wxBrush(white));
dc.DrawRectangle(100, 20, 50, 50);
dc.DrawRectangle(110, 40, 50, 50);
wxRegion region1(100, 20, 50, 50);
wxRegion region2(110, 40, 50, 50);
region1.Intersect(region2);
wxRect rect1 = region1.GetBox();
dc.SetClippingRegion(region1);
dc.SetBrush(wxBrush(red));
dc.DrawRectangle(rect1);
dc.DestroyClippingRegion();
dc.SetBrush(wxBrush(white));
dc.DrawRectangle(180, 20, 50, 50);
dc.DrawRectangle(190, 40, 50, 50);
wxRegion region3(180, 20, 50, 50);
wxRegion region4(190, 40, 50, 50);
region3.Union(region4);
dc.SetClippingRegion(region3);
wxRect rect2 = region3.GetBox();
dc.SetBrush(wxBrush(orange));
dc.DrawRectangle(rect2);
dc.DestroyClippingRegion();
dc.SetBrush(wxBrush(white));
dc.DrawRectangle(20, 120, 50, 50);
dc.DrawRectangle(30, 140, 50, 50);
wxRegion region5(20, 120, 50, 50);
wxRegion region6(30, 140, 50, 50);
region5.Xor(region6);
wxRect rect3 = region5.GetBox();
dc.SetClippingRegion(region5);
dc.SetBrush(wxBrush(green));
dc.DrawRectangle(rect3);
dc.DestroyClippingRegion();
dc.SetBrush(wxBrush(white));
dc.DrawRectangle(100, 120, 50, 50);
dc.DrawRectangle(110, 140, 50, 50);
wxRegion region7(100, 120, 50, 50);
wxRegion region8(110, 140, 50, 50);
region7.Subtract(region8);
wxRect rect4 = region7.GetBox();
dc.SetClippingRegion(region7);
dc.SetBrush(wxBrush(brown));
dc.DrawRectangle(rect4);
dc.DestroyClippingRegion();
dc.SetBrush(white);
dc.DrawRectangle(180, 120, 50, 50);
dc.DrawRectangle(190, 140, 50, 50);
wxRegion region9(180, 120, 50, 50);
wxRegion region10(190, 140, 50, 50);
region10.Subtract(region9);
wxRect rect5 = region10.GetBox();
dc.SetClippingRegion(region10);
dc.SetBrush(wxBrush(blue));
dc.DrawRectangle(rect5);
dc.DestroyClippingRegion();
}
from:http://www.cnblogs.com/ziqiao/archive/2011/11/14/2248268.html