fmt
This commit is contained in:
Laurent Le Goff
parent
bb4ed43b8a
commit
9a1350aff2
4 changed files with 270 additions and 269 deletions
3
Makefile
3
Makefile
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@ -17,3 +17,6 @@ nuke:
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cd draw2d && make nuke
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cd postscript && make nuke
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cd wingui && make nuke
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fmt:
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gofmt -w draw2d postscript wingui cmd
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@ -1,228 +1,228 @@
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// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"fmt"
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"syscall"
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"os"
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"unsafe"
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"image"
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"io/ioutil"
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"strings"
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"draw2d.googlecode.com/hg/draw2d"
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"draw2d.googlecode.com/hg/postscript"
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"draw2d.googlecode.com/hg/wingui"
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)
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package main
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import (
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"fmt"
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"syscall"
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"os"
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"unsafe"
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"image"
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"io/ioutil"
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"strings"
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"draw2d.googlecode.com/hg/draw2d"
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"draw2d.googlecode.com/hg/postscript"
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"draw2d.googlecode.com/hg/wingui"
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)
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// some help functions
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func abortf(format string, a ...interface{}) {
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fmt.Fprintf(os.Stdout, format, a...)
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os.Exit(1)
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}
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func abortErrNo(funcname string, err int) {
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abortf("%s failed: %d %s\n", funcname, err, syscall.Errstr(err))
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}
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func abortf(format string, a ...interface{}) {
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fmt.Fprintf(os.Stdout, format, a...)
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os.Exit(1)
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}
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func abortErrNo(funcname string, err int) {
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abortf("%s failed: %d %s\n", funcname, err, syscall.Errstr(err))
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}
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// global vars
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func TestDrawCubicCurve(gc draw2d.GraphicContext) {
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func TestDrawCubicCurve(gc draw2d.GraphicContext) {
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// draw a cubic curve
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x, y := 25.6, 128.0
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x1, y1 := 102.4, 230.4
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x2, y2 := 153.6, 25.6
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x3, y3 := 230.4, 128.0
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gc.SetFillColor(image.NRGBAColor{0xAA, 0xAA, 0xAA, 0xFF})
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gc.SetLineWidth(10)
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gc.MoveTo(x, y)
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gc.CubicCurveTo(x1, y1, x2, y2, x3, y3)
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gc.Stroke()
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gc.SetStrokeColor(image.NRGBAColor{0xFF, 0x33, 0x33, 0x88})
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gc.SetLineWidth(6)
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x, y := 25.6, 128.0
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x1, y1 := 102.4, 230.4
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x2, y2 := 153.6, 25.6
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x3, y3 := 230.4, 128.0
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gc.SetFillColor(image.NRGBAColor{0xAA, 0xAA, 0xAA, 0xFF})
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gc.SetLineWidth(10)
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gc.MoveTo(x, y)
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gc.CubicCurveTo(x1, y1, x2, y2, x3, y3)
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gc.Stroke()
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gc.SetStrokeColor(image.NRGBAColor{0xFF, 0x33, 0x33, 0x88})
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gc.SetLineWidth(6)
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// draw segment of curve
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gc.MoveTo(x, y)
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gc.LineTo(x1, y1)
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gc.LineTo(x2, y2)
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gc.LineTo(x3, y3)
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gc.Stroke()
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}
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var (
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mh uint32
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wndBufferHeader uint32
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wndBuffer wingui.BITMAP
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hdcWndBuffer uint32
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ppvBits *image.RGBAColor
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backBuffer *image.RGBA
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postscriptContent string
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)
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gc.MoveTo(x, y)
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gc.LineTo(x1, y1)
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gc.LineTo(x2, y2)
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gc.LineTo(x3, y3)
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gc.Stroke()
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}
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var (
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mh uint32
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wndBufferHeader uint32
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wndBuffer wingui.BITMAP
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hdcWndBuffer uint32
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ppvBits *image.RGBAColor
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backBuffer *image.RGBA
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postscriptContent string
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)
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// WinProc called by windows to notify us of all windows events we might be interested in.
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func WndProc(hwnd, msg uint32, wparam, lparam int32) uintptr {
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var rc int32
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switch msg {
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case wingui.WM_CREATE:
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hdc := wingui.GetDC(hwnd);
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wndBufferHeader = wingui.CreateCompatibleBitmap(hdc, 600, 800)
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wingui.GetObject(wndBufferHeader, unsafe.Sizeof(wndBuffer), uintptr(unsafe.Pointer(&wndBuffer)))
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hdcWndBuffer = wingui.CreateCompatibleDC(hdc)
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wingui.SelectObject(hdcWndBuffer, wndBufferHeader)
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var bmp_header wingui.BITMAPINFOHEADER
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bmp_header.Size = uint32(unsafe.Sizeof(bmp_header))
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bmp_header.Width = 600
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bmp_header.Height = 800
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bmp_header.SizeImage = 0// the api says this must be 0 for BI_RGB images
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bmp_header.Compression = wingui.BI_RGB
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bmp_header.BitCount = 32
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bmp_header.Planes = 1
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bmp_header.XPelsPerMeter = 0
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bmp_header.YPelsPerMeter = 0
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bmp_header.ClrUsed = 0
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bmp_header.ClrImportant = 0
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func WndProc(hwnd, msg uint32, wparam, lparam int32) uintptr {
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var rc int32
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switch msg {
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case wingui.WM_CREATE:
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hdc := wingui.GetDC(hwnd)
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wndBufferHeader = wingui.CreateCompatibleBitmap(hdc, 600, 800)
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wingui.GetObject(wndBufferHeader, unsafe.Sizeof(wndBuffer), uintptr(unsafe.Pointer(&wndBuffer)))
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hdcWndBuffer = wingui.CreateCompatibleDC(hdc)
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wingui.SelectObject(hdcWndBuffer, wndBufferHeader)
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var bmp_header wingui.BITMAPINFOHEADER
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bmp_header.Size = uint32(unsafe.Sizeof(bmp_header))
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bmp_header.Width = 600
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bmp_header.Height = 800
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bmp_header.SizeImage = 0 // the api says this must be 0 for BI_RGB images
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bmp_header.Compression = wingui.BI_RGB
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bmp_header.BitCount = 32
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bmp_header.Planes = 1
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bmp_header.XPelsPerMeter = 0
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bmp_header.YPelsPerMeter = 0
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bmp_header.ClrUsed = 0
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bmp_header.ClrImportant = 0
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//bitmap info
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var bmpinfo wingui.BITMAPINFO
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bmpinfo.Colors[0].Blue = 0
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bmpinfo.Colors[0].Green = 0
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bmpinfo.Colors[0].Red = 0
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bmpinfo.Colors[0].Reserved = 0
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bmpinfo.Header = bmp_header
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wndBufferHeader = wingui.CreateDIBSection(hdc, &bmpinfo, wingui.DIB_RGB_COLORS, uintptr(unsafe.Pointer(&ppvBits)), 0, 0)
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wingui.GetObject(wndBufferHeader, unsafe.Sizeof(wndBufferHeader), uintptr(unsafe.Pointer(&wndBuffer)))
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hdcWndBuffer = wingui.CreateCompatibleDC(hdc)
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wingui.SelectObject(hdcWndBuffer, wndBufferHeader)
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pixel := (*[600*800]image.RGBAColor)(unsafe.Pointer(ppvBits))
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pixelSlice := pixel[:]
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backBuffer = &image.RGBA{pixelSlice, 600, image.Rect(0, 0, 600, 800)}
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fmt.Println("Create windows")
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rc = wingui.DefWindowProc(hwnd, msg, wparam, lparam)
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case wingui.WM_COMMAND:
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switch uint32(lparam) {
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default:
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rc = wingui.DefWindowProc(hwnd, msg, wparam, lparam)
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}
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case wingui.WM_PAINT:
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var ps wingui.PAINTSTRUCT
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hdc := wingui.BeginPaint(hwnd, &ps)
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gc := draw2d.NewImageGraphicContext(backBuffer)
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gc.SetFillColor(image.RGBAColor{0xFF, 0xFF, 0xFF, 0xFF})
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gc.Clear()
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gc.Save()
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var bmpinfo wingui.BITMAPINFO
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bmpinfo.Colors[0].Blue = 0
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bmpinfo.Colors[0].Green = 0
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bmpinfo.Colors[0].Red = 0
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bmpinfo.Colors[0].Reserved = 0
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bmpinfo.Header = bmp_header
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wndBufferHeader = wingui.CreateDIBSection(hdc, &bmpinfo, wingui.DIB_RGB_COLORS, uintptr(unsafe.Pointer(&ppvBits)), 0, 0)
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wingui.GetObject(wndBufferHeader, unsafe.Sizeof(wndBufferHeader), uintptr(unsafe.Pointer(&wndBuffer)))
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hdcWndBuffer = wingui.CreateCompatibleDC(hdc)
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wingui.SelectObject(hdcWndBuffer, wndBufferHeader)
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pixel := (*[600 * 800]image.RGBAColor)(unsafe.Pointer(ppvBits))
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pixelSlice := pixel[:]
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backBuffer = &image.RGBA{pixelSlice, 600, image.Rect(0, 0, 600, 800)}
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fmt.Println("Create windows")
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rc = wingui.DefWindowProc(hwnd, msg, wparam, lparam)
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case wingui.WM_COMMAND:
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switch uint32(lparam) {
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default:
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rc = wingui.DefWindowProc(hwnd, msg, wparam, lparam)
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}
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case wingui.WM_PAINT:
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var ps wingui.PAINTSTRUCT
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hdc := wingui.BeginPaint(hwnd, &ps)
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gc := draw2d.NewImageGraphicContext(backBuffer)
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gc.SetFillColor(image.RGBAColor{0xFF, 0xFF, 0xFF, 0xFF})
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gc.Clear()
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gc.Save()
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//gc.Translate(0, -380)
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interpreter := postscript.NewInterpreter(gc)
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reader := strings.NewReader(postscriptContent)
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interpreter.Execute(reader)
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gc.Restore()
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wingui.BitBlt(hdc, 0, 0 , int(wndBuffer.Width), int(wndBuffer.Height), hdcWndBuffer, 0, 0, wingui.SRCCOPY);
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wingui.EndPaint(hwnd, &ps)
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rc = wingui.DefWindowProc(hwnd, msg, wparam, lparam)
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case wingui.WM_CLOSE:
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wingui.DestroyWindow(hwnd)
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case wingui.WM_DESTROY:
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wingui.PostQuitMessage(0)
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default:
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rc = wingui.DefWindowProc(hwnd, msg, wparam, lparam)
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}
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return uintptr(rc)
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}
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func rungui() int {
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var e int
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interpreter := postscript.NewInterpreter(gc)
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reader := strings.NewReader(postscriptContent)
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interpreter.Execute(reader)
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gc.Restore()
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wingui.BitBlt(hdc, 0, 0, int(wndBuffer.Width), int(wndBuffer.Height), hdcWndBuffer, 0, 0, wingui.SRCCOPY)
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wingui.EndPaint(hwnd, &ps)
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rc = wingui.DefWindowProc(hwnd, msg, wparam, lparam)
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case wingui.WM_CLOSE:
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wingui.DestroyWindow(hwnd)
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case wingui.WM_DESTROY:
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wingui.PostQuitMessage(0)
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default:
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rc = wingui.DefWindowProc(hwnd, msg, wparam, lparam)
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}
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return uintptr(rc)
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}
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func rungui() int {
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var e int
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// GetModuleHandle
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mh, e = wingui.GetModuleHandle(nil)
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if e != 0 {
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abortErrNo("GetModuleHandle", e)
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}
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mh, e = wingui.GetModuleHandle(nil)
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if e != 0 {
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abortErrNo("GetModuleHandle", e)
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}
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// Get icon we're going to use.
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myicon, e := wingui.LoadIcon(0, wingui.IDI_APPLICATION)
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if e != 0 {
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abortErrNo("LoadIcon", e)
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}
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myicon, e := wingui.LoadIcon(0, wingui.IDI_APPLICATION)
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if e != 0 {
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abortErrNo("LoadIcon", e)
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}
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// Get cursor we're going to use.
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mycursor, e := wingui.LoadCursor(0, wingui.IDC_ARROW)
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if e != 0 {
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abortErrNo("LoadCursor", e)
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}
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mycursor, e := wingui.LoadCursor(0, wingui.IDC_ARROW)
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if e != 0 {
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abortErrNo("LoadCursor", e)
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}
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// Create callback
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wproc := syscall.NewCallback(WndProc)
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wproc := syscall.NewCallback(WndProc)
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// RegisterClassEx
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wcname := syscall.StringToUTF16Ptr("Test Draw2d")
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var wc wingui.Wndclassex
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wc.Size = uint32(unsafe.Sizeof(wc))
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wc.WndProc = wproc
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wc.Instance = mh
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wc.Icon = myicon
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wc.Cursor = mycursor
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wc.Background = wingui.COLOR_BTNFACE + 1
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wc.MenuName = nil
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wc.ClassName = wcname
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wc.IconSm = myicon
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if _, e := wingui.RegisterClassEx(&wc); e != 0 {
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abortErrNo("RegisterClassEx", e)
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}
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wcname := syscall.StringToUTF16Ptr("Test Draw2d")
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var wc wingui.Wndclassex
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wc.Size = uint32(unsafe.Sizeof(wc))
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wc.WndProc = wproc
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wc.Instance = mh
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wc.Icon = myicon
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wc.Cursor = mycursor
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wc.Background = wingui.COLOR_BTNFACE + 1
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wc.MenuName = nil
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wc.ClassName = wcname
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wc.IconSm = myicon
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if _, e := wingui.RegisterClassEx(&wc); e != 0 {
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abortErrNo("RegisterClassEx", e)
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}
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// CreateWindowEx
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wh, e := wingui.CreateWindowEx(
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wingui.WS_EX_CLIENTEDGE,
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wcname,
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syscall.StringToUTF16Ptr("My window"),
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wingui.WS_OVERLAPPEDWINDOW,
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wingui.CW_USEDEFAULT, wingui.CW_USEDEFAULT, 600, 800,
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0, 0, mh, 0)
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if e != 0 {
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abortErrNo("CreateWindowEx", e)
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}
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fmt.Printf("main window handle is %x\n", wh)
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wh, e := wingui.CreateWindowEx(
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wingui.WS_EX_CLIENTEDGE,
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wcname,
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syscall.StringToUTF16Ptr("My window"),
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wingui.WS_OVERLAPPEDWINDOW,
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wingui.CW_USEDEFAULT, wingui.CW_USEDEFAULT, 600, 800,
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0, 0, mh, 0)
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if e != 0 {
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abortErrNo("CreateWindowEx", e)
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}
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fmt.Printf("main window handle is %x\n", wh)
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// ShowWindow
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wingui.ShowWindow(wh, wingui.SW_SHOWDEFAULT)
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wingui.ShowWindow(wh, wingui.SW_SHOWDEFAULT)
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// UpdateWindow
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if e := wingui.UpdateWindow(wh); e != 0 {
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abortErrNo("UpdateWindow", e)
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}
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if e := wingui.UpdateWindow(wh); e != 0 {
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abortErrNo("UpdateWindow", e)
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}
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// Process all windows messages until WM_QUIT.
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var m wingui.Msg
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for {
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r, e := wingui.GetMessage(&m, 0, 0, 0)
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if e != 0 {
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abortErrNo("GetMessage", e)
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}
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if r == 0 {
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var m wingui.Msg
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for {
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r, e := wingui.GetMessage(&m, 0, 0, 0)
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if e != 0 {
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abortErrNo("GetMessage", e)
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}
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if r == 0 {
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// WM_QUIT received -> get out
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break
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}
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wingui.TranslateMessage(&m)
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wingui.DispatchMessage(&m)
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}
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return int(m.Wparam)
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}
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func main() {
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src, err := os.Open("../resource/postscript/tiger.ps", 0, 0)
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if err != nil {
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fmt.Println("can't find postscript file.")
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return
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}
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defer src.Close()
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bytes, err := ioutil.ReadAll(src)
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postscriptContent = string(bytes)
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rc := rungui()
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os.Exit(rc)
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}
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break
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}
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wingui.TranslateMessage(&m)
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wingui.DispatchMessage(&m)
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}
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return int(m.Wparam)
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}
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func main() {
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src, err := os.Open("../resource/postscript/tiger.ps", 0, 0)
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if err != nil {
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fmt.Println("can't find postscript file.")
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return
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}
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defer src.Close()
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bytes, err := ioutil.ReadAll(src)
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postscriptContent = string(bytes)
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rc := rungui()
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os.Exit(rc)
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}
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@ -10,13 +10,13 @@ import (
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"freetype-go.googlecode.com/hg/freetype/raster"
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)
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type Painter interface{
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type Painter interface {
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raster.Painter
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SetColor(color image.Color)
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}
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type ImageGraphicContext struct {
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img draw.Image
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img draw.Image
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painter Painter
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fillRasterizer *raster.Rasterizer
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strokeRasterizer *raster.Rasterizer
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|
@ -56,7 +56,7 @@ func NewImageGraphicContext(img draw.Image) *ImageGraphicContext {
|
|||
default:
|
||||
panic("Image type not supported")
|
||||
}
|
||||
|
||||
|
||||
width, height := gc.img.Bounds().Dx(), gc.img.Bounds().Dy()
|
||||
gc.fillRasterizer = raster.NewRasterizer(width, height)
|
||||
gc.strokeRasterizer = raster.NewRasterizer(width, height)
|
||||
|
|
|
|||
114
wingui/wingdi.go
114
wingui/wingdi.go
|
|
@ -6,82 +6,80 @@ import (
|
|||
)
|
||||
|
||||
const (
|
||||
|
||||
WM_PAINT = 15
|
||||
|
||||
|
||||
BI_RGB = 0
|
||||
|
||||
|
||||
DIB_PAL_COLORS = 1
|
||||
DIB_RGB_COLORS = 0
|
||||
|
||||
|
||||
SRCCOPY = 0xCC0020
|
||||
)
|
||||
|
||||
type RECT struct{
|
||||
Left int32
|
||||
Top int32
|
||||
Right int32
|
||||
Bottom int32
|
||||
type RECT struct {
|
||||
Left int32
|
||||
Top int32
|
||||
Right int32
|
||||
Bottom int32
|
||||
}
|
||||
|
||||
type PAINTSTRUCT struct{
|
||||
HDC uint32
|
||||
Erase int32 // bool
|
||||
RcPaint RECT
|
||||
Restore int32 // bool
|
||||
IncUpdate int32 // bool
|
||||
rgbReserved [32]byte
|
||||
type PAINTSTRUCT struct {
|
||||
HDC uint32
|
||||
Erase int32 // bool
|
||||
RcPaint RECT
|
||||
Restore int32 // bool
|
||||
IncUpdate int32 // bool
|
||||
rgbReserved [32]byte
|
||||
}
|
||||
|
||||
type BITMAP struct{
|
||||
Type int32
|
||||
Width int32
|
||||
Height int32
|
||||
WidthBytes int32
|
||||
Planes uint16
|
||||
BitsPixel uint16
|
||||
Bits * byte
|
||||
type BITMAP struct {
|
||||
Type int32
|
||||
Width int32
|
||||
Height int32
|
||||
WidthBytes int32
|
||||
Planes uint16
|
||||
BitsPixel uint16
|
||||
Bits *byte
|
||||
}
|
||||
|
||||
type BITMAPINFOHEADER struct{
|
||||
Size uint32
|
||||
Width int32
|
||||
Height int32
|
||||
Planes uint16
|
||||
BitCount uint16
|
||||
Compression uint32
|
||||
SizeImage uint32
|
||||
XPelsPerMeter int32
|
||||
YPelsPerMeter int32
|
||||
ClrUsed uint32
|
||||
ClrImportant uint32
|
||||
type BITMAPINFOHEADER struct {
|
||||
Size uint32
|
||||
Width int32
|
||||
Height int32
|
||||
Planes uint16
|
||||
BitCount uint16
|
||||
Compression uint32
|
||||
SizeImage uint32
|
||||
XPelsPerMeter int32
|
||||
YPelsPerMeter int32
|
||||
ClrUsed uint32
|
||||
ClrImportant uint32
|
||||
}
|
||||
|
||||
type BITMAPINFO struct{
|
||||
Header BITMAPINFOHEADER
|
||||
Colors [1]RGBQUAD
|
||||
type BITMAPINFO struct {
|
||||
Header BITMAPINFOHEADER
|
||||
Colors [1]RGBQUAD
|
||||
}
|
||||
|
||||
type RGBQUAD struct{
|
||||
Blue byte
|
||||
Green byte
|
||||
Red byte
|
||||
Reserved byte
|
||||
type RGBQUAD struct {
|
||||
Blue byte
|
||||
Green byte
|
||||
Red byte
|
||||
Reserved byte
|
||||
}
|
||||
|
||||
var (
|
||||
modgdi32 = loadDll("gdi32.dll")
|
||||
|
||||
procGetDC = getSysProcAddr(moduser32, "GetDC")
|
||||
procCreateCompatibleDC = getSysProcAddr(modgdi32, "CreateCompatibleDC")
|
||||
procGetObject = getSysProcAddr(modgdi32, "GetObjectW")
|
||||
procSelectObject = getSysProcAddr(modgdi32, "SelectObject")
|
||||
procBeginPaint = getSysProcAddr(moduser32, "BeginPaint")
|
||||
procEndPaint = getSysProcAddr(moduser32, "EndPaint")
|
||||
procGetDC = getSysProcAddr(moduser32, "GetDC")
|
||||
procCreateCompatibleDC = getSysProcAddr(modgdi32, "CreateCompatibleDC")
|
||||
procGetObject = getSysProcAddr(modgdi32, "GetObjectW")
|
||||
procSelectObject = getSysProcAddr(modgdi32, "SelectObject")
|
||||
procBeginPaint = getSysProcAddr(moduser32, "BeginPaint")
|
||||
procEndPaint = getSysProcAddr(moduser32, "EndPaint")
|
||||
procCreateCompatibleBitmap = getSysProcAddr(modgdi32, "CreateCompatibleBitmap")
|
||||
procCreateDIBSection = getSysProcAddr(modgdi32, "CreateDIBSection")
|
||||
procBitBlt = getSysProcAddr(modgdi32, "BitBlt")
|
||||
|
||||
procCreateDIBSection = getSysProcAddr(modgdi32, "CreateDIBSection")
|
||||
procBitBlt = getSysProcAddr(modgdi32, "BitBlt")
|
||||
)
|
||||
|
||||
func GetDC(hwnd uint32) (hdc uint32) {
|
||||
|
|
@ -102,7 +100,7 @@ func GetObject(hgdiobj uint32, cbBuffer int, object uintptr) (size uint32) {
|
|||
return size
|
||||
}
|
||||
|
||||
func SelectObject(hdc uint32, hgdiobj uint32) (uint32) {
|
||||
func SelectObject(hdc uint32, hgdiobj uint32) uint32 {
|
||||
r0, _, _ := syscall.Syscall(procSelectObject, 2, uintptr(hdc), uintptr(hgdiobj), 0)
|
||||
return uint32(r0)
|
||||
}
|
||||
|
|
@ -118,17 +116,17 @@ func EndPaint(hwnd uint32, ps *PAINTSTRUCT) bool {
|
|||
return true
|
||||
}
|
||||
|
||||
func CreateCompatibleBitmap(hdc uint32, width ,height int) ( hbitmap uint32) {
|
||||
func CreateCompatibleBitmap(hdc uint32, width, height int) (hbitmap uint32) {
|
||||
r0, _, _ := syscall.Syscall(procCreateCompatibleBitmap, 3, uintptr(hdc), uintptr(width), uintptr(height))
|
||||
return uint32(r0)
|
||||
}
|
||||
|
||||
func CreateDIBSection(hdc uint32, pbmi *BITMAPINFO , iUsage uint, ppvBits uintptr, hSection uint32, dwOffset uint32) ( hbitmap uint32) {
|
||||
func CreateDIBSection(hdc uint32, pbmi *BITMAPINFO, iUsage uint, ppvBits uintptr, hSection uint32, dwOffset uint32) (hbitmap uint32) {
|
||||
r0, _, _ := syscall.Syscall6(procCreateDIBSection, 6, uintptr(hdc), uintptr(unsafe.Pointer(pbmi)), uintptr(iUsage), ppvBits, uintptr(hSection), uintptr(dwOffset))
|
||||
return uint32(r0)
|
||||
}
|
||||
|
||||
func BitBlt(hdc uint32, nXDest, nYDest, nWidth, nHeight int, hdcSrc uint32, nXSrc, nYSrc int, dwRop uint32) ( bool) {
|
||||
func BitBlt(hdc uint32, nXDest, nYDest, nWidth, nHeight int, hdcSrc uint32, nXSrc, nYSrc int, dwRop uint32) bool {
|
||||
r0, _, _ := syscall.Syscall9(procBitBlt, 9, uintptr(hdc), uintptr(nXDest), uintptr(nYDest), uintptr(nWidth), uintptr(nHeight), uintptr(hdcSrc), uintptr(nXSrc), uintptr(nYSrc), uintptr(dwRop))
|
||||
return r0 != 0
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue