mirror of
https://gitlab.com/freepascal.org/lazarus/lazarus.git
synced 2025-12-04 07:31:46 +01:00
examples: postscriptcanvas example updated
git-svn-id: trunk@46927 -
This commit is contained in:
jesus
parent
c6c954a140
commit
21edb33745
@ -1,4 +1,4 @@
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<?xml version="1.0"?>
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<?xml version="1.0" encoding="UTF-8"?>
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<CONFIG>
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<ProjectOptions>
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<Version Value="9"/>
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@ -12,6 +12,9 @@
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<MainUnit Value="0"/>
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<Title Value="samplepostscriptcanvas"/>
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</General>
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<BuildModes Count="1">
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<Item1 Name="default" Default="True"/>
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</BuildModes>
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<PublishOptions>
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<Version Value="2"/>
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<IgnoreBinaries Value="False"/>
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@ -33,21 +36,21 @@
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<Unit0>
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<Filename Value="samplepostscriptcanvas.lpr"/>
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<IsPartOfProject Value="True"/>
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<UnitName Value="samplepostscriptcanvas"/>
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</Unit0>
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<Unit1>
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<Filename Value="usamplepostscriptcanvas.pas"/>
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<IsPartOfProject Value="True"/>
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<ComponentName Value="Form1"/>
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<HasResources Value="True"/>
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<ResourceBaseClass Value="Form"/>
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<UnitName Value="uSamplePostScriptCanvas"/>
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</Unit1>
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</Units>
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</ProjectOptions>
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<CompilerOptions>
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<Version Value="9"/>
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<Version Value="11"/>
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<SearchPaths>
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<SrcPath Value="$(LazarusDir)/lcl/;$(LazarusDir)/lcl/interfaces/$(LCLWidgetType)/"/>
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<SrcPath Value="$(LazarusDir)/lcl;$(LazarusDir)/lcl/interfaces/$(LCLWidgetType)"/>
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</SearchPaths>
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<Parsing>
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<SyntaxOptions>
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@ -61,8 +64,5 @@
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</Win32>
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</Options>
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</Linking>
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<Other>
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<CompilerPath Value="$(CompPath)"/>
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</Other>
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</CompilerOptions>
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</CONFIG>
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@ -1,35 +1,35 @@
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object Form1: TForm1
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Left = 420
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Height = 118
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Height = 219
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Top = 276
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Width = 486
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ActiveControl = Button1
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Caption = 'Form1'
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ClientHeight = 118
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ClientHeight = 219
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ClientWidth = 486
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OnCreate = FormCreate
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LCLVersion = '0.9.29'
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LCLVersion = '1.3'
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object Label1: TLabel
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Left = 108
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Height = 16
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Height = 21
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Top = 8
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Width = 112
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Width = 117
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Caption = 'Select Paper Size'
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ParentColor = False
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end
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object Label2: TLabel
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Left = 8
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Height = 16
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Height = 21
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Top = 8
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Width = 78
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Width = 84
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Caption = 'Resolution X'
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ParentColor = False
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end
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object Label3: TLabel
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Left = 8
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Height = 16
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Height = 21
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Top = 64
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Width = 77
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Width = 83
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Caption = 'Resolution Y'
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ParentColor = False
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end
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@ -55,19 +55,20 @@ object Form1: TForm1
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end
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object ListBox1: TListBox
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Left = 104
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Height = 79
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Height = 87
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Top = 28
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Width = 124
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Items.Strings = (
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'A4'
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'Letter'
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)
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ItemHeight = 21
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ItemHeight = 27
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ScrollWidth = 122
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TabOrder = 2
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end
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object txtResX: TEdit
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Left = 8
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Height = 21
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Height = 31
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Top = 28
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Width = 80
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TabOrder = 3
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@ -75,7 +76,7 @@ object Form1: TForm1
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end
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object txtResY: TEdit
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Left = 8
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Height = 21
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Height = 31
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Top = 84
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Width = 80
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TabOrder = 4
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@ -90,4 +91,38 @@ object Form1: TForm1
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OnClick = Button3Click
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TabOrder = 5
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end
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object btnTestFonts: TButton
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Left = 264
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Height = 25
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Top = 112
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Width = 211
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Caption = 'Test Fonts'
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OnClick = btnTestFontsClick
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TabOrder = 6
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end
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object gpOrientation: TRadioGroup
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Left = 8
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Height = 96
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Top = 120
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Width = 220
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AutoFill = True
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Caption = 'Orientation'
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ChildSizing.LeftRightSpacing = 6
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ChildSizing.EnlargeHorizontal = crsHomogenousChildResize
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ChildSizing.EnlargeVertical = crsHomogenousChildResize
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ChildSizing.ShrinkHorizontal = crsScaleChilds
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ChildSizing.ShrinkVertical = crsScaleChilds
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ChildSizing.Layout = cclLeftToRightThenTopToBottom
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ChildSizing.ControlsPerLine = 1
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ClientHeight = 73
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ClientWidth = 216
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ItemIndex = 0
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Items.Strings = (
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'Portrait'
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'Reverse Portrait'
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'Landscape'
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'Reverse Landscape'
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)
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TabOrder = 7
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end
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end
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@ -11,8 +11,8 @@ uses
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{$IFDEF UNIX}
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Unix,
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{$ENDIF}
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Classes, SysUtils, FileUtil, LResources, Forms, Controls, Graphics, Dialogs,
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Buttons, PostScriptCanvas, StdCtrls;
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Classes, SysUtils, types, FileUtil, LResources, Forms, Controls, Graphics,
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Dialogs, Buttons, Printers, PostScriptCanvas, StdCtrls, ExtCtrls;
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type
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@ -22,18 +22,30 @@ type
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Button1: TButton;
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Button2: TButton;
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Button3: TButton;
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btnTestFonts: TButton;
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gpOrientation: TRadioGroup;
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txtResX: TEdit;
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txtResY: TEdit;
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Label1: TLabel;
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Label2: TLabel;
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Label3: TLabel;
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ListBox1: TListBox;
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procedure btnTestFontsClick(Sender: TObject);
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procedure Button1Click(Sender: TObject);
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procedure Button2Click(Sender: TObject);
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procedure Button3Click(Sender: TObject);
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procedure FormCreate(Sender: TObject);
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private
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{ private declarations }
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fPsCanvas: TPostscriptCanvas;
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function Sx(AX: Integer): Integer;
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function Sy(AY: Integer): Integer;
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function PointS(Ax,Ay:Integer): TPoint;
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function RectS(Ax1,Ay1,Ax2,AY2: Integer): TRect;
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function Pt2Pix(Pt: Integer): Integer;
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procedure ShowFile(aFile:string);
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procedure SelectPaper(res:Integer=0);
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public
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{ public declarations }
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end;
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@ -55,72 +67,42 @@ var
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Xpm : TPixMap;
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png : TPortableNetworkGraphic;
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x,y,tmp : Integer;
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PsCanvas: TPostscriptCanvas;
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R : TRect;
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function Sx(AX: Integer): Integer;
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begin
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// all values were based on 72 dpi
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result := round(PsCanvas.XDPI/72*Ax);
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end;
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function Sy(AY: Integer): Integer;
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begin
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// all values were based on 72 dpi
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result := round(PsCanvas.YDPI/72*Ay);
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end;
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function PointS(Ax,Ay:Integer): TPoint;
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begin
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Result.X:= Sx(Ax);
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Result.Y:= Sy(Ay);
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end;
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function RectS(Ax1,Ay1,Ax2,AY2: Integer): TRect;
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begin
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Result.TopLeft := PointS(AX1,AY1);
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Result.BottomRight := PointS(AX2,AY2);
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end;
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function Pt2Pix(Pt: Integer): Integer;
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begin
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result := round(PSCanvas.YDPI/72*Pt);
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end;
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procedure LineSample(txt:string);
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begin
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tmp := Pt2Pix(PsCanvas.Font.Size) div 2;
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PsCanvas.Line(x+Sx(170),y+tmp,x+Sx(170+100),y+tmp);
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PsCanvas.TextOut(x,y,txt);
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tmp := Pt2Pix(fPsCanvas.Font.Size) div 2;
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fPsCanvas.Line(x+Sx(170),y+tmp,x+Sx(170+100),y+tmp);
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fPsCanvas.TextOut(x,y,txt);
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inc(y,tmp*3);
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end;
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procedure BrushSample(txt:string);
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begin
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PsCanvas.Rectangle(x,y,x+Sx(50),y+Sy(40));
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PsCanvas.TextOut(x+Sx(55),y+SY(40)-Pt2Pix(PsCanvas.Font.Size),txt);
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fPsCanvas.Rectangle(x,y,x+Sx(50),y+Sy(40));
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fPsCanvas.TextOut(x+Sx(55),y+SY(40)-Pt2Pix(fPsCanvas.Font.Size),txt);
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inc(y,Sy(50));
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end;
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procedure FontSample(txt:string);
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begin
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PsCanvas.TextOut(x,y,txt);
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inc(y,Pt2Pix(PsCanvas.Font.Size)+Sy(4));
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fPsCanvas.TextOut(x,y,txt);
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inc(y,Pt2Pix(fPsCanvas.Font.Size)+Sy(4));
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end;
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procedure LineSamples(AX,AY:Integer);
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begin
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x := AX;
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y := AY;
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PsCanvas.Pen.Style:=psSolid;
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fPsCanvas.Pen.Style:=psSolid;
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LineSample('Line style=psSolid');
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PsCanvas.Pen.Style:=psDash;
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fPsCanvas.Pen.Style:=psDash;
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LineSample('Line style=psDash');
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PsCanvas.Pen.Style:=psDot;
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fPsCanvas.Pen.Style:=psDot;
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LineSample('Line style=psDot');
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PsCanvas.Pen.Style:=psDashDot;
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fPsCanvas.Pen.Style:=psDashDot;
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LineSample('Line style=psDashDot');
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PsCanvas.Pen.Style:=psDashDotDot;
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fPsCanvas.Pen.Style:=psDashDotDot;
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LineSample('Line style=psDashDotDot');
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end;
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@ -128,20 +110,20 @@ var
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begin
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x := AX;
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y := AY;
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PsCanvas.Pen.Style:=psSolid;
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PsCanvas.Brush.Color:=clBlack;
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fPsCanvas.Pen.Style:=psSolid;
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fPsCanvas.Brush.Color:=clBlack;
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PsCanvas.Brush.Style:=bsCross;
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fPsCanvas.Brush.Style:=bsCross;
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BrushSample('Brush.Style:=bsCross');
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PsCanvas.Brush.Style:=bsDiagCross;
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fPsCanvas.Brush.Style:=bsDiagCross;
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BrushSample('Brush.Style:=bsDiagCross');
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PsCanvas.Brush.Style:=bsBDiagonal;
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fPsCanvas.Brush.Style:=bsBDiagonal;
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BrushSample('Brush.Style:=bsBDiagonal');
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PsCanvas.Brush.Style:=bsFDiagonal;
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fPsCanvas.Brush.Style:=bsFDiagonal;
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BrushSample('Brush.Style:=bsFDiagonal');
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PsCanvas.Brush.Style:=bsVertical;
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fPsCanvas.Brush.Style:=bsVertical;
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BrushSample('Brush.Style:=bsVertical');
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PsCanvas.Brush.Style:=bsHorizontal;
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fPsCanvas.Brush.Style:=bsHorizontal;
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BrushSample('Brush.Style:=bsHorizontal');
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end;
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@ -149,36 +131,26 @@ var
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begin
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x := AX;
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y := Ay;
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PsCanvas.Font.Name:='Courier';
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tmp := PsCanvas.Font.Size;
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PsCanvas.Font.Style:=[fsUnderline];
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fPsCanvas.Font.Name:='Courier';
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tmp := fPsCanvas.Font.Size;
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fPsCanvas.Font.Style:=[fsUnderline];
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FontSample('Underline text '+#13#10+'sample (éàçè)');
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PsCanvas.Font.Style:=[fsUnderline,fsBold];
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fPsCanvas.Font.Style:=[fsUnderline,fsBold];
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FontSample('Underline and bold text sample (éàçè)');
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PsCanvas.Font.Style:=[fsItalic];
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fPsCanvas.Font.Style:=[fsItalic];
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FontSample('Italic Пример текста Random:ęðšćàÀâ¿€ÂáÁçÇñÑüÜ');
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PsCanvas.Font.Style:=[];
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fPsCanvas.Font.Style:=[];
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FontSample('Normal Пример текста Random:ęðšćàÀâ¿€ÂáÁçÇñÑüÜ');
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PsCanvas.Font.Style:=[fsUnderline,fsBold,fsItalic];
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fPsCanvas.Font.Style:=[fsUnderline,fsBold,fsItalic];
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FontSample('all Пример текста Random:ęðšćàÀâ¿€ÂáÁçÇñÑüÜ');
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PsCanvas.Font.Style:=[];
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fPsCanvas.Font.Style:=[];
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end;
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begin
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if Sender=nil then ;
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PsCanvas := TPostscriptCanvas.Create;
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psCanvas.XDPI := StrToIntDef(txtResX.Text,300);
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psCanvas.YDPI := StrToIntDef(txtResY.Text,300);
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With PsCanvas do
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fPsCanvas := TPostscriptCanvas.Create;
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With fPsCanvas do
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try
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if ListBox1.ItemIndex=1 then begin
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PaperHeight:=Sx(792);
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PaperWidth:=Sy(612);
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end else begin
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PaperHeight:=Sy(842);
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PaperWidth:=Sx(595);
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end;
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TopMargin:=Sy(40);
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LeftMargin:=Sx(20);
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SelectPaper;
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BeginDoc;
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@ -268,12 +240,12 @@ begin
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BrushSamples(Sx(100),Sy(100));
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R := RectS(100,500,200,520);
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PSCanvas.Brush.Style:=bsSolid;
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PSCanvas.Brush.Color:=clWhite;
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PSCanvas.Rectangle(R.Left, R.Top, R.Right, R.Bottom);
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PSCanvas.ClipRect := R;
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PSCanvas.TextRect(R, R.Left, R.Top, 'Testing clip rect on TextRect', PSCanvas.TextStyle);
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PSCanvas.ClipRect := Rect(0,0,0,0);
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fPSCanvas.Brush.Style:=bsSolid;
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fPSCanvas.Brush.Color:=clWhite;
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fPSCanvas.Rectangle(R.Left, R.Top, R.Right, R.Bottom);
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fPSCanvas.ClipRect := R;
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fPSCanvas.TextRect(R, R.Left, R.Top, 'Testing clip rect on TextRect', fPSCanvas.TextStyle);
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fPSCanvas.ClipRect := Rect(0,0,0,0);
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EndDoc;
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SaveToFile('test1.ps');
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@ -282,49 +254,88 @@ begin
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end;
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end;
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procedure TForm1.Button2Click(Sender: TObject);
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var
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FName: string;
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begin
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if Sender=nil then ;
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if FileExistsUTF8(ExpandFileNameUTF8('./test1.ps')) then
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procedure TForm1.btnTestFontsClick(Sender: TObject);
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const
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arrNames:array[0..3] of string =
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('Courier', 'Helvetica', 'Times-Roman', 'Symbol');
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function SampleFontName(ax, ay: Integer; aFontName: string): types.TSize;
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const
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SText = 'Tj1';
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ArrStyles: array[0..3] of TFontStyles =
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([],[fsUnderline],[fsBold],[fsBold,fsUnderline]);
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var
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sz: types.TSize;
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i, j, fontSize, x, y, dy: Integer;
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begin
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{$IFDEF MSWINDOWS}
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FName := '"C:\Program Files\Ghostgum\gsview\gsview32" ' + ExpandFileNameUTF8('./test1.ps');
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ShellExecute(Handle, 'open', PChar(FName), nil, nil, SW_SHOWNORMAL)
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{$ENDIF}
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{$IFDEF UNIX}
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Shell(format('gv %s',[ExpandFileNameUTF8('./test1.ps')]));
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{$ENDIF}
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y := Sy(aY);
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x := Sx(ax);
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dy := 0;
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fPsCanvas.Font.Name:=aFontName;
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fontSize := 16;
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while fontSize<(12*3) do begin
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fPsCanvas.Font.Size := fontSize;
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for i:=0 to 3 do begin
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fPsCanvas.Font.Style:=arrStyles[i];
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fPsCanvas.TextOut(x, y, SText);
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sz := fPsCanvas.TextExtent(SText);
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inc(x, sz.cx);
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end;
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inc(fontSize, 8);
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end;
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inc(y, sz.cy);
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result.cx := x;
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result.cy := y;
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//x := ax;
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end;
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var
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i: Integer;
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sz: Types.TSize;
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begin
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fPsCanvas := TPostscriptCanvas.Create;
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try
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SelectPaper;
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fPsCanvas.BeginDoc;
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sz.cy := 10;
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for i:=0 to High(ArrNames) do
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sz := SampleFontName(10, sz.cy, ArrNames[i]);
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fPsCanvas.EndDoc;
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fPsCanvas.SaveToFile('fonts.ps');
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finally
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fPsCanvas.Free;
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end;
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end;
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procedure TForm1.Button2Click(Sender: TObject);
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begin
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ShowFile('test1.ps');
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end;
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procedure TForm1.Button3Click(Sender: TObject);
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var
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png : TPortableNetworkGraphic;
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x,y,tmp : Integer;
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PsCanvas: TPostscriptCanvas;
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png : TPortableNetworkGraphic;
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x,y,tmp : Integer;
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begin
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psCanvas := TPostscriptCanvas.Create;
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psCanvas.XDPI := 72;
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psCanvas.YDPI := 72;
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psCanvas.PaperHeight:=842;
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psCanvas.PaperWidth:=595;
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psCanvas.TopMargin:=40;
|
||||
psCanvas.LeftMargin:=20;
|
||||
psCanvas.BeginDoc;
|
||||
fPsCanvas := TPostscriptCanvas.Create;
|
||||
SelectPaper(72);
|
||||
|
||||
fPsCanvas.BeginDoc;
|
||||
|
||||
png := TPortableNetworkGraphic.Create;
|
||||
try
|
||||
png.LoadFromFile('small.png');
|
||||
psCanvas.StretchDraw(Bounds(50,500,50,50),png);
|
||||
fPsCanvas.StretchDraw(Bounds(50,500,50,50),png);
|
||||
finally
|
||||
png.Free;
|
||||
end;
|
||||
|
||||
psCanvas.EndDoc;
|
||||
psCanvas.SaveToFile('small.ps');
|
||||
psCanvas.Free;
|
||||
fPsCanvas.EndDoc;
|
||||
fPsCanvas.SaveToFile('small.ps');
|
||||
fPsCanvas.Free;
|
||||
end;
|
||||
|
||||
procedure TForm1.FormCreate(Sender: TObject);
|
||||
@ -332,5 +343,84 @@ begin
|
||||
ListBox1.ItemIndex:=0;
|
||||
end;
|
||||
|
||||
function TForm1.Sx(AX: Integer): Integer;
|
||||
begin
|
||||
// all values were based on 72 dpi
|
||||
result := round(fPsCanvas.XDPI/72*Ax);
|
||||
end;
|
||||
|
||||
function TForm1.Sy(AY: Integer): Integer;
|
||||
begin
|
||||
// all values were based on 72 dpi
|
||||
result := round(fPsCanvas.YDPI/72*Ay);
|
||||
end;
|
||||
|
||||
function TForm1.PointS(Ax, Ay: Integer): TPoint;
|
||||
begin
|
||||
Result.X:= Sx(Ax);
|
||||
Result.Y:= Sy(Ay);
|
||||
end;
|
||||
|
||||
function TForm1.RectS(Ax1, Ay1, Ax2, AY2: Integer): TRect;
|
||||
begin
|
||||
Result.TopLeft := PointS(AX1,AY1);
|
||||
Result.BottomRight := PointS(AX2,AY2);
|
||||
end;
|
||||
|
||||
function TForm1.Pt2Pix(Pt: Integer): Integer;
|
||||
begin
|
||||
result := round(fPSCanvas.YDPI/72*Pt);
|
||||
end;
|
||||
|
||||
procedure TForm1.ShowFile(aFile: string);
|
||||
{$IFDEF MSWINDOWS}
|
||||
var
|
||||
FName: string;
|
||||
{$ENDIF}
|
||||
begin
|
||||
aFile := ExpandFileNameUTF8('./'+aFile);
|
||||
if FileExistsUTF8(aFile) then
|
||||
begin
|
||||
{$IFDEF MSWINDOWS}
|
||||
FName := '"C:\Program Files\Ghostgum\gsview\gsview32" ' + aFile);
|
||||
ShellExecute(Handle, 'open', PChar(FName), nil, nil, SW_SHOWNORMAL)
|
||||
{$ENDIF}
|
||||
{$IFDEF UNIX}
|
||||
FpExecL('/usr/bin/evince', [aFile]);
|
||||
//Shell(format('gv %s',[aFile]));
|
||||
{$ENDIF}
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TForm1.SelectPaper(res:Integer=0);
|
||||
begin
|
||||
with fPsCanvas do begin
|
||||
if res=0 then begin
|
||||
XDPI := StrToIntDef(txtResX.Text,300);
|
||||
YDPI := StrToIntDef(txtResY.Text,300);
|
||||
end else begin
|
||||
XDPI := res;
|
||||
YDPI := res;
|
||||
end;
|
||||
if ListBox1.ItemIndex=1 then begin
|
||||
PaperHeight:=Sx(792);
|
||||
PaperWidth:=Sy(612);
|
||||
end else begin
|
||||
PaperHeight:=Sy(842);
|
||||
PaperWidth:=Sx(595);
|
||||
end;
|
||||
TopMargin:=Sy(40);
|
||||
LeftMargin:=Sx(20);
|
||||
|
||||
case gpOrientation.ItemIndex of
|
||||
1: Orientation := poReversePortrait;
|
||||
2: Orientation := poLandscape;
|
||||
3: Orientation := poReverseLandscape;
|
||||
else Orientation := poPortrait;
|
||||
end;
|
||||
|
||||
end;
|
||||
end;
|
||||
|
||||
end.
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user