RGSSType alpha 0.1
2013 年 11 月 27 日
一个用于直接在RGSS3的位图上写文字的类，
不经过bitmap.draw_text，而是直接写像素，
就算RGSS3启动时没有安装字体，安装字体之后使用RGSSType.new仍然有用
这个版本只实现了一个简单的写字体方法，而且并没有作为Bitmap的方法被定义
用法：
RGSSType#font
返回RGSSType使用的Font对象，可以设置他的字型字号颜色等, 文字轮廓阴影暂时不支持。
RGSSType#writetext(bitmap, string, x, y, color[, height])
在bitmap上，从(x, y)开始书写文字string, height
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 | =begin RGSSType Alpha 0.1 Author: 晴兰 Seiran Website: http://seiran.mist.so License: Copyright (c) 2013, Seiran All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the seiran.mist.so nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. =end #encoding:UTF-8 module SAFX module_function def to_param(a) case a when Integer then "L" when String then "p" end end def to_ptr(a) case a when Integer then a when String then [a].pack('p').unpack("L").first end end def api(dll,func) lambda{|*args| Win32API.new(dll,func,args.map{|x|to_param(x)}, 'i').call(*args) } end def to_wc(str, cp = 65001) (buf = ""*str.length)[0, 2*api('Kernel32', 'MultiByteToWideChar').call(cp, 0, to_ptr(str), -1, buf, buf.length)] end def to_mb(str, cp = 65001) (buf = ""* str.length)[0, api('Kernel32', 'WideCharToMultiByte').call(cp, 0, to_ptr(str), -1, buf, buf.length, 0, 0)] end end class RGSSType module API FUNC = {} HANDLES = [DL::dlopen('gdi32'), DL::dlopen("KERNEL32"), DL::dlopen("USER32")] def self.method_missing(sym, *args) FUNC[sym] ||= DL::CFunc.new( HANDLES.map{|x| x[sym.to_s] rescue nil}.compact[0] , DL::TYPE_VOIDP, '', :stdcall ) FUNC[sym].call(args.map{|x| DL::CPtr[x]}) end end attr_accessor :font def initialize(font = ::Font.new ,w = 300, h = 300) @font = font @dc = API.CreateCompatibleDC(0) @ptr = DL.malloc(w * h * 4) @bitmap = API.CreateBitmap(w, h, 1, 32, @ptr) @w, @h = w, h DL.free(@ptr) resetfont end def resetfont API.DeleteObject(@hfont) if @hfont != nil API.SelectOBject(@dc, @hold) if @hold != nil @hold = nil @hfont = nil end def bits buf = [].pack("x#{@w * @h * 4}") API.GetBitmapBits(@bitmap, buf.size, buf) buf end def boolvalue a a ? 1 : 0 end def dispose resetfont API.DeleteObject(@bitmap) API.ReleaseDC(@dc) end def createfont resetfont args = [@font.size, 0, 0, 0, @font.bold ? 700 : 400, boolvalue(@font.italic), 0,0, 1, #default_charset 0,0,4,0, SAFX.to_wc(@font.name+"")] # here^ @hfont = API.CreateFontW(*args) @hold = API.SelectObject(@dc, @hfont) end def getchar8b(a) API.GetGlyphIndicesW(@dc, SAFX.to_wc(a+""), 1, (index=[].pack("x4")), 0) # here^ index = index.unpack("L").first glyph = [].pack("x24") mat = [0,1,0,0,0,0,0,1].pack("S*") len = API.GetGlyphOutline(@dc, index, 0x85, glyph, 0, 0, mat) buf = [].pack "x#{len}" len = API.GetGlyphOutline(@dc, index, 0x85, glyph, len, buf, mat) bx, by, ox, oy, cx, cy = glyph.unpack("llllss") [buf, bx, by, ox, oy, cx, cy, len] end def char_height(ch) u = getchar8b(ch) height = u[5] end def writechar8b(bitmap, ch, cx, cy, color, height = nil) u = getchar8b(ch) r,g,b,a=color.red, color.green, color.blue, color.alpha return [0, 0] if u[0].size == 0 colors = 256.times.map{|x| Color.new(r * x * 4 / 256, g * x * 4 / 256, b * x * 4 / 256, a) } i = 0 height ||= u[0].size / ((u[1] + 3) / 4 * 4) v = u[0].unpack("C*") u[2].times{|y| u[1].times{|x| bitmap.set_pixel(x + cx + u[3], cy + height - u[4] + y, colors[v[i]*4]) i += 1 } i = (i + 3) >> 2 << 2 } [u[5], u[6]] end def writetext(bitmap, text, cx, cy, color) createfont height = text.split(//).map{|x| char_height(x)}.max text.split(//).each{|ch| w,h = writechar8b(bitmap, ch, cx, cy, color, height) cx += w } end end |