Picture View In PowerBuilder
Code Example
uo_picture_view from datawindow
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forward global type uo_picture_view from datawindow end type end forward global type uo_picture_view from datawindow integer width = 2514 integer height = 1412 boolean titlebar = true string title = "Picture View" string dataobject = "d_picture_view" boolean controlmenu = true boolean minbox = true boolean maxbox = true boolean resizable = true boolean livescroll = true event ue_leftbuttondown pbm_lbuttondown event ue_mousemoving pbm_mousemove event ue_leftbuttonup pbm_lbuttonup end type global uo_picture_view uo_picture_view type variables Private: String is_picture_FileName String is_curs_moving,is_curs_moved,is_curs_zoomin,is_curs_zoomout Boolean ib_photo_moving,ib_zoomin,ib_zoomout,ib_DoNothing = False Integer ii_lbuttondown_posx,ii_lbuttondown_posy,ii_pic_width,ii_pic_height Dec{2} id_scale_step = 0.25 ,id_cur_scale = 1.00 end variables forward prototypes public subroutine uf_settitle (string as_title) public function boolean uf_setfilename (string as_filename) public subroutine uf_setzoomscalestep (decimal ai_newscale) public subroutine uf_setpicsize (integer ai_pic_width, integer ai_pic_height) public subroutine uf_setzoomscale (decimal ai_newscale) public subroutine uf_setbackcolor (long al_back_color) end prototypes event ue_leftbuttondown;If xpos > 1200 And xpos < 1800 And ypos >= 20 And ypos <= 84 Then ib_DoNothing = True Return End If If ib_DoNothing Then Return If Not ib_zoomin And Not ib_zoomout Then ib_photo_moving = True ii_lbuttondown_posx = xpos ii_lbuttondown_posy = ypos This.Object.datawindow.Pointer = is_curs_moving This.Object.p_photo_view.Pointer = is_curs_moving Else ib_photo_moving = False // this.object.datawindow.pointer = is_curs_moved // this.object.p_photo_view.pointer = is_curs_moved End If end event event ue_mousemoving;This.Object.t_posx.Text = String(xpos) This.Object.t_posy.Text = String(ypos) If ib_DoNothing Then Return If Not ib_photo_moving Then Return Integer li_picx,li_picy Integer li_movex,li_movey li_picx = Integer(This.Object.p_photo_view.X) li_picy = Integer(This.Object.p_photo_view.Y) li_movex = xpos - ii_lbuttondown_posx li_movey = ypos - ii_lbuttondown_posy This.SetRedraw(False) This.Object.p_photo_view.X = li_picx + li_movex This.Object.p_photo_view.Y = li_picy + li_movey This.SetRedraw(True) ii_lbuttondown_posx = xpos ii_lbuttondown_posy = ypos end event event ue_leftbuttonup;If xpos > 1200 And xpos < 1800 And ypos >= 20 And ypos <= 84 Then Return If ib_DoNothing Then Return If Not ib_zoomin And Not ib_zoomout Then ib_photo_moving = False This.Object.p_photo_view.Pointer = is_curs_moved This.Object.datawindow.Pointer = is_curs_moved Return End If If ii_pic_width <= 0 Then Return If ib_zoomin Then id_cur_scale = id_cur_scale + id_scale_step End If If ib_zoomout Then id_cur_scale = id_cur_scale * (1 - id_scale_step) End If If id_cur_scale >= 8.0 Or id_cur_scale <= 0.05 Then Return Long li_new_x,li_new_y,li_new_width,li_new_height Long li_x0,li_y0,li_old_width,li_old_height,li_addx,li_addy //Double lf_tgn,ld_addx,ld_addy,ld_sin,ld_cos,ld_len This.SetRedraw(False) li_x0 = Long(This.Object.p_photo_view.X) li_y0 = Long(This.Object.p_photo_view.Y) li_old_width = Long(This.Object.p_photo_view.Width) li_old_height = Long(This.Object.p_photo_view.Height) li_new_width = ii_pic_width * id_cur_scale li_new_height = ii_pic_height * id_cur_scale /* ld_len = sqrt((xpos - li_x0)*(xpos - li_x0) + (ypos - li_y0) * (ypos - li_y0)) ld_sin = ( ypos - li_y0)/ld_len ld_cos = ( xpos - li_x0)/ld_len debugbreak() */ li_addx = (xpos - li_x0) * (id_cur_scale -1) li_addy = (ypos - li_y0) * (id_cur_scale -1) li_new_x = li_x0 - li_addx li_new_y = li_y0 - li_addy This.Object.t_scale.Text = String(id_cur_scale,'##0%') //this.object.p_photo_view.x = li_new_x //this.object.p_photo_view.y = li_new_y This.Object.p_photo_view.Width = li_new_width This.Object.p_photo_view.Height = li_new_height This.SetRedraw(True) end event public subroutine uf_settitle (string as_title);this.object.st_title.text = as_Title end subroutine public function boolean uf_setfilename (string as_filename);if FileExists(as_filename) then this.object.p_photo_view.visible = 0 this.object.p_photo_view.Filename = as_fileName this.object.p_photo_view.visible = 1 return True else this.object.p_photo_view.FileName = 'LiuFang' return True end if end function public subroutine uf_setzoomscalestep (decimal ai_newscale);id_scale_step = ai_newscale end subroutine public subroutine uf_setpicsize (integer ai_pic_width, integer ai_pic_height);this.setredraw(false) this.object.p_photo_view.width = ai_pic_width this.object.p_photo_view.height = ai_pic_height ii_pic_width = ai_pic_width ii_pic_height = ai_pic_height this.object.t_scale.text = '100%' this.setredraw(true) end subroutine public subroutine uf_setzoomscale (decimal ai_newscale);id_cur_scale = ai_newScale if id_cur_scale >= 8.0 or id_cur_scale <= 0.05 then return Long li_new_x,li_new_y,li_new_width,li_new_height Long li_x0,li_y0,li_old_width,li_old_height,li_addx,li_addy //Double lf_tgn,ld_addx,ld_addy,ld_sin,ld_cos,ld_len this.setredraw(false) li_x0 = Long(this.object.p_photo_view.x) li_y0 = Long(this.object.p_photo_view.y) li_old_width = Long(this.object.p_photo_view.width) li_old_height= Long(this.object.p_photo_view.height) li_new_width = ii_pic_width * id_cur_scale li_new_height = ii_pic_height * id_cur_scale //li_addx = (xpos - li_x0) * (id_cur_scale -1) //li_addy = (ypos - li_y0) * (id_cur_scale -1) li_new_x = li_x0 //- li_addx li_new_y = li_y0 //- li_addy this.object.t_scale.text = string(id_cur_scale,'##0%') //this.object.p_photo_view.x = li_new_x //this.object.p_photo_view.y = li_new_y this.object.p_photo_view.width = li_new_width this.object.p_photo_view.height = li_new_height this.setredraw(true) end subroutine public subroutine uf_setbackcolor (long al_back_color);this.modify('datawindow.header.color='+string(al_back_color)) end subroutine on uo_picture_view.create end on on uo_picture_view.destroy end on event constructor;is_curs_moved = "hand.cur" is_curs_moving = "hand2.cur" is_curs_zoomin = 'zoomin.cur' is_curs_zoomout = 'zoomout.cur' end event event clicked;//==================================================================== // Event: uo_picture_view.clicked() //-------------------------------------------------------------------- // Description: //-------------------------------------------------------------------- // Arguments: // value integer xpos // value integer ypos // value long row // value dwobject dwo //-------------------------------------------------------------------- // Returns: long //-------------------------------------------------------------------- // Author: PB.BaoGa Date: 2022/02/20 //-------------------------------------------------------------------- // Usage: uo_picture_view.clicked for uo_picture_view //-------------------------------------------------------------------- // Copyright (c) PB.BaoGa(TM), All rights reserved. //-------------------------------------------------------------------- // Modify History: // //==================================================================== //if NOT( xpos > 1200 and xpos < 1800 and ypos >= 20 and ypos <= 84 ) then return ib_DoNothing = True String ls_button_name,ls_modify ls_button_name = dwo.Name If ls_button_name = 'b_all' Then This.SetRedraw(False) This.Object.p_photo_view.X = 41 This.Object.p_photo_view.Y = 104 This.Object.p_photo_view.Width = ii_pic_width This.Object.p_photo_view.Height = ii_pic_height This.Object.t_scale.Text = '100%' id_cur_scale = 1.00 This.SetRedraw(True) ib_DoNothing = False Return End If If ls_button_name = 'b_left' Then This.SetRedraw(False) Long ll_width,ll_height ll_width = Long(This.Object.p_photo_view.Width) ll_height = Long(This.Object.p_photo_view.Height) This.Object.p_photo_view.X = Integer((This.Width - ll_width )/2) This.Object.p_photo_view.Y = Integer((This.Height - ll_height)/2) This.SetRedraw(True) ib_DoNothing = False Return End If If ls_button_name = 'p_zoomin' Then ib_photo_moving = False ib_zoomin = Not ib_zoomin ib_zoomout = False If ib_zoomin Then This.Object.datawindow.Pointer = is_curs_zoomin This.Object.p_photo_view.Pointer = is_curs_zoomin Else This.Object.datawindow.Pointer = is_curs_moved This.Object.p_photo_view.Pointer = is_curs_moved End If End If If ls_button_name = 'p_zoomout' Then ib_photo_moving = False ib_zoomout = Not ib_zoomout ib_zoomin = False If ib_zoomout Then This.Object.datawindow.Pointer = is_curs_zoomout This.Object.p_photo_view.Pointer = is_curs_zoomout Else This.Object.datawindow.Pointer = is_curs_moved This.Object.p_photo_view.Pointer = is_curs_moved End If End If If ls_button_name = 'p_move' Then ib_zoomout = False ib_zoomin = False End If String ls_bn = "6",ls_bs = "5" If ib_zoomout Then ls_modify += ' p_zoomout.border="'+ls_bs+'" p_move.border="'+ls_bn+'" ' Else ls_modify += ' p_zoomout.border="'+ls_bn+'" ' End If If ib_zoomin Then ls_modify += ' p_zoomin.border ="'+ls_bs+'" p_move.border="'+ls_bn+'" ' Else ls_modify += ' p_zoomin.border ="'+ls_bn+'" ' End If If Not ib_zoomout And Not ib_zoomin Then ls_modify += ' p_move.border="'+ls_bs+'" ' Else ls_modify += ' p_move.border="'+ls_bn+'" ' End If This.Modify(ls_modify) ib_DoNothing = False end event event rbuttondown;String ls_bn = "6",ls_bs = "5" ,ls_modify ib_zoomout = False ib_zoomin = False If ib_zoomout Then ls_modify += ' p_zoomout.border="'+ls_bs+'" p_move.border="'+ls_bn+'" ' Else ls_modify += ' p_zoomout.border="'+ls_bn+'" ' End If If ib_zoomin Then ls_modify += ' p_zoomin.border ="'+ls_bs+'" p_move.border="'+ls_bn+'" ' Else ls_modify += ' p_zoomin.border ="'+ls_bn+'" ' End If If Not ib_zoomout And Not ib_zoomin Then ls_modify += ' p_move.border="'+ls_bs+'" ' Else ls_modify += ' p_move.border="'+ls_bn+'" ' End If This.Modify(ls_modify) This.Object.p_photo_view.Pointer = is_curs_moved This.Object.datawindow.Pointer = is_curs_moved ib_DoNothing = False end event |
Datawindow d_picture_view
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release 10.5; datawindow(units=0 timer_interval=0 color=134217741 processing=0 HTMLDW=no print.printername="" print.documentname="" print.orientation = 0 print.margin.left = 110 print.margin.right = 110 print.margin.top = 96 print.margin.bottom = 96 print.paper.source = 0 print.paper.size = 0 print.canusedefaultprinter=yes print.prompt=no print.buttons=no print.preview.buttons=no print.cliptext=no print.overrideprintjob=no print.collate=yes print.preview.outline=yes hidegrayline=no ) header(height=4060 color="536870912" ) summary(height=0 color="536870912" ) footer(height=0 color="536870912" ) detail(height=4 color="536870912" ) table(column=(type=char(10) updatewhereclause=no name=name dbname="name" ) ) bitmap(band=header filename="" x="41" y="148" height="1008" width="1993" border="0" name=p_photo_view pointer="" visible="1" ) text(band=header alignment="1" text="100%" border="0" color="65535" x="1010" y="28" height="56" width="165" html.valueishtml="0" name=t_scale visible="1" font.face="Tahoma" font.height="-8" font.weight="400" font.family="2" font.pitch="2" font.charset="0" background.mode="1" background.color="536870912" ) text(band=header alignment="2" text="9999" border="0" color="65535" x="873" y="28" height="56" width="110" html.valueishtml="0" name=t_posy visible="1" font.face="Tahoma" font.height="-8" font.weight="400" font.family="2" font.pitch="2" font.charset="0" background.mode="1" background.color="536870912" ) text(band=header alignment="2" text="9999" border="0" color="65535" x="722" y="28" height="56" width="128" html.valueishtml="0" name=t_posx visible="1" font.face="Tahoma" font.height="-8" font.weight="400" font.family="2" font.pitch="2" font.charset="0" background.mode="1" background.color="536870912" ) text(band=header alignment="0" text="Title" border="0" color="16777215" x="46" y="24" height="56" width="649" html.valueishtml="0" name=st_title pointer="Arrow!" visible="1" font.face="宋体" font.height="-9" font.weight="400" font.family="0" font.pitch="2" font.charset="134" background.mode="1" background.color="536870912" ) bitmap(band=header filename="zoomin.bmp" x="1207" y="20" height="64" width="73" border="6" name=p_zoomin pointer="Arrow!" visible="1" ) bitmap(band=header filename="zoomout.bmp" x="1321" y="20" height="64" width="73" border="6" name=p_zoomout pointer="Arrow!" visible="1" ) bitmap(band=header filename="move.bmp" x="1435" y="20" height="64" width="73" border="5" name=p_move pointer="Arrow!" visible="1" ) button(band=header text="□" filename="" enabled=yes action="0" border="0" color="0" x="1550" y="16" height="80" width="96" vtextalign="0" htextalign="0" name=b_all pointer="Arrow!" visible="1" font.face="宋体" font.height="-9" font.weight="400" font.family="0" font.pitch="2" font.charset="134" background.mode="2" background.color="80269524" ) button(band=header text="◎" filename="" enabled=yes action="0" border="0" color="0" x="1678" y="16" height="80" width="96" vtextalign="0" htextalign="0" name=b_left pointer="Arrow!" visible="1" font.face="宋体" font.height="-9" font.weight="400" font.family="0" font.pitch="2" font.charset="134" background.mode="2" background.color="80269524" ) htmltable(border="1" ) htmlgen(clientevents="1" clientvalidation="1" clientcomputedfields="1" clientformatting="0" clientscriptable="0" generatejavascript="1" encodeselflinkargs="1" netscapelayers="0" pagingmethod=0 generatedddwframes="1" ) xhtmlgen() cssgen(sessionspecific="0" ) xmlgen(inline="0" ) xsltgen() jsgen() export.xml(headgroups="1" includewhitespace="0" metadatatype=0 savemetadata=0 ) import.xml() export.pdf(method=0 distill.custompostscript="0" xslfop.print="0" ) export.xhtml() |
w_main from window
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forward global type w_main from window end type type p_1 from picture within w_main end type type cb_setbackcolor from commandbutton within w_main end type type st_2 from statictext within w_main end type type sle_title from singlelineedit within w_main end type type cb_select_file from commandbutton within w_main end type type st_1 from statictext within w_main end type type sle_pic_file from singlelineedit within w_main end type type dw_view from uo_picture_view within w_main end type end forward global type w_main from window integer width = 3141 integer height = 2184 boolean titlebar = true string title = "DataWindow Image Viewer Control" boolean controlmenu = true boolean minbox = true boolean maxbox = true boolean resizable = true long backcolor = 67108864 p_1 p_1 cb_setbackcolor cb_setbackcolor st_2 st_2 sle_title sle_title cb_select_file cb_select_file st_1 st_1 sle_pic_file sle_pic_file dw_view dw_view end type global w_main w_main forward prototypes public subroutine wf_show_picture (string as_pic_name, string as_title) public subroutine wf_center (window aw_window) end prototypes public subroutine wf_show_picture (string as_pic_name, string as_title);If Not FileExists(as_pic_name) Then Return p_1.PictureName = as_pic_name p_1.OriginalSize = True //dw_view.uf_setpicsize(pixelstounits(p_1.width,xpixelstounits!),pixelstounits(p_1.height,ypixelstounits!)) dw_view.uf_setpicsize(p_1.Width,p_1.Height) dw_view.uf_setfileName(as_pic_name) dw_view.uf_settitle(as_title) end subroutine public subroutine wf_center (window aw_window);//==================================================================== // Function: w_main.wf_center() //-------------------------------------------------------------------- // Description: Make the window appear in the center of the screen //-------------------------------------------------------------------- // Arguments: // value window aw_window window to be displayed //-------------------------------------------------------------------- // Returns: (none) //-------------------------------------------------------------------- // Author: PB.BaoGa Date: 2022/02/20 //-------------------------------------------------------------------- // Usage: w_main.wf_center ( window aw_window ) //-------------------------------------------------------------------- // Copyright (c) PB.BaoGa(TM), All rights reserved. //-------------------------------------------------------------------- // Modify History: // //==================================================================== Environment l_Env // get environment, in order to get screen size Integer li_Rtn li_Rtn = GetEnvironment(l_Env) // Determine whether the environment variable can be obtained correctly //DEBUG_ASSERT((li_Rtn=1),"Can't get Environment!") // convert screen pixels to pb uint Integer li_ScreenHeight, li_ScreenWidth li_ScreenWidth = PixelsToUnits(l_Env.ScreenWidth, XPixelsToUnits!) li_ScreenHeight = PixelsToUnits(l_Env.ScreenHeight, YPixelsToUnits!) // calc window postion Integer li_X, li_Y li_X = (li_ScreenWidth - aw_window.Width)/2 li_Y = (li_ScreenHeight - aw_window.Height)*2/5 // make it cool // repositioning window aw_window.Move(li_X, li_Y) end subroutine on w_main.create this.p_1=create p_1 this.cb_setbackcolor=create cb_setbackcolor this.st_2=create st_2 this.sle_title=create sle_title this.cb_select_file=create cb_select_file this.st_1=create st_1 this.sle_pic_file=create sle_pic_file this.dw_view=create dw_view this.Control[]={this.p_1,& this.cb_setbackcolor,& this.st_2,& this.sle_title,& this.cb_select_file,& this.st_1,& this.sle_pic_file,& this.dw_view} end on on w_main.destroy destroy(this.p_1) destroy(this.cb_setbackcolor) destroy(this.st_2) destroy(this.sle_title) destroy(this.cb_select_file) destroy(this.st_1) destroy(this.sle_pic_file) destroy(this.dw_view) end on event resize;dw_view.Width = WorkSpaceWidth() - dw_view.X *2 dw_view.Height = WorkSpaceHeight() - dw_view.Y - 8 end event event open;wf_center(This) dw_view.uf_setzoomscalestep(0.1) dw_view.uf_setzoomscale(1.0) wf_show_picture(sle_pic_file.text,sle_title.text) dw_view.event clicked(1680,18,0,dw_view.object.b_all) end event type p_1 from picture within w_main boolean visible = false integer x = 2290 integer width = 110 integer height = 88 boolean originalsize = true boolean focusrectangle = false end type type cb_setbackcolor from commandbutton within w_main integer x = 1737 integer y = 116 integer width = 923 integer height = 84 integer taborder = 30 integer textsize = -9 integer weight = 400 fontcharset fontcharset = ansi! fontpitch fontpitch = variable! fontfamily fontfamily = swiss! string facename = "Tahoma" string text = "Random Background Color Settings" end type event clicked;dw_view.uf_setbackcolor(rgb(rand(255),rand(255),rand(255))) end event type st_2 from statictext within w_main integer x = 27 integer y = 112 integer width = 187 integer height = 52 integer textsize = -9 integer weight = 400 fontcharset fontcharset = ansi! fontpitch fontpitch = variable! fontfamily fontfamily = swiss! string facename = "Tahoma" long textcolor = 33554432 long backcolor = 67108864 string text = "Title:" boolean focusrectangle = false end type type sle_title from singlelineedit within w_main integer x = 215 integer y = 108 integer width = 1477 integer height = 80 integer taborder = 20 integer textsize = -9 integer weight = 400 fontcharset fontcharset = ansi! fontpitch fontpitch = variable! fontfamily fontfamily = swiss! string facename = "Tahoma" long textcolor = 33554432 string text = "picview.bmp" borderstyle borderstyle = stylelowered! end type event modified;dw_view.uf_settitle(sle_title.text) end event type cb_select_file from commandbutton within w_main integer x = 1737 integer y = 8 integer width = 306 integer height = 88 integer taborder = 20 integer textsize = -9 integer weight = 400 fontcharset fontcharset = ansi! fontpitch fontpitch = variable! fontfamily fontfamily = swiss! string facename = "Tahoma" string text = "Choose..." end type event clicked;string ls_PathName,ls_FileName integer li_Rtn li_Rtn = GetFileOpenName("Select image file", ls_PathName, ls_FileName,'bmp',& "Supported image formats,*.jpg;*.bmp;*.gif;*.rle;*.wmf,"+& "Bitmap(.bmp),*.bmp,"+& "JPEG(.jpg;.jpeg),*.jpg;*.jpeg,"+& "RunLengthEncode(.rle),*.rle,"+& "Windows MetaFile(.wmf),*.wmf") IF li_Rtn <> 1 THEN return sle_pic_file.text = ls_PathName sle_title.text = ls_FileName wf_show_picture(ls_pathName,ls_fileName) end event type st_1 from statictext within w_main integer x = 27 integer y = 20 integer width = 187 integer height = 52 integer textsize = -9 integer weight = 400 fontcharset fontcharset = ansi! fontpitch fontpitch = variable! fontfamily fontfamily = swiss! string facename = "Tahoma" long textcolor = 33554432 long backcolor = 67108864 string text = "File:" boolean focusrectangle = false end type type sle_pic_file from singlelineedit within w_main integer x = 215 integer y = 12 integer width = 1477 integer height = 80 integer taborder = 10 integer textsize = -9 integer weight = 400 fontcharset fontcharset = ansi! fontpitch fontpitch = variable! fontfamily fontfamily = swiss! string facename = "Tahoma" long textcolor = 33554432 string text = "picview.bmp" borderstyle borderstyle = stylelowered! end type event modified;wf_show_picture(this.text,sle_title.text) end event type dw_view from uo_picture_view within w_main integer x = 9 integer y = 216 integer width = 2574 integer height = 1300 integer taborder = 10 boolean titlebar = false boolean resizable = false borderstyle borderstyle = stylelowered! end type |
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Good Luck!
Picture view is pretty awesome. Thanks for sharing!