Source code of file oscpmwin/pimgzoom.pas from the
osCommerce Product Manager for Windows.
0000: {%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
0001: osCommerce Product Manager for Windows (oscpmwin).
0002: Copyright �2003-2006 by Mario A. Valdez-Ramirez.
0003:
0004: You can contact Mario A. Valdez-Ramirez
0005: by email at mario@mariovaldez.org or paper mail at
0006: Olmos 809, San Nicolas, NL. 66495, Mexico.
0007:
0008: This program is free software; you can redistribute it and/or modify
0009: it under the terms of the GNU General Public License as published by
0010: the Free Software Foundation; either version 2 of the License, or (at
0011: your option) any later version.
0012:
0013: This program is distributed in the hope that it will be useful, but
0014: WITHOUT ANY WARRANTY; without even the implied warranty of
0015: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
0016: General Public License for more details.
0017:
0018: You should have received a copy of the GNU General Public License
0019: along with this program; if not, write to the Free Software
0020: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
0021: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%}
0022: unit pimgzoom;
0023:
0024: interface
0025:
0026: uses
0027: Windows, Classes, Graphics, Controls, Forms, ExtCtrls;
0028:
0029: type
0030: Topm_Form_ImageZoom = class(TForm)
0031: opm_Image_ZoomImage: TImage;
0032: procedure opm_Image_ZoomImageClick(Sender: TObject);
0033: procedure FormShow(Sender: TObject);
0034: procedure FormCreate(Sender: TObject);
0035: procedure FormDeactivate(Sender: TObject);
0036: procedure FormKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
0037: procedure FormHide(Sender: TObject);
0038: private
0039: public
0040: end;
0041:
0042: var
0043: opm_Form_ImageZoom: Topm_Form_ImageZoom;
0044:
0045: implementation
0046:
0047: uses gnugettext, oscpmdata, attention;
0048:
0049: {$R *.dfm}
0050:
0051:
0052:
0053: {%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%}
0054: {%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%}
0055: procedure Topm_Form_ImageZoom.opm_Image_ZoomImageClick(Sender: TObject);
0056: begin
0057: PRopm_Sound ('RestoreDown', opmG_UISilent);
0058: opm_Form_ImageZoom.Close;
0059: end;
0060:
0061: {%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%}
0062: {%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%}
0063: procedure Topm_Form_ImageZoom.FormShow(Sender: TObject);
0064: VAR
0065: MaxX, MaxY, WSizeX, WSizeY : LONGINT;
0066: begin
0067: MaxX := Screen.WorkAreaWidth;
0068: MaxY := Screen.WorkAreaHeight;
0069: WSizeX := (opm_Form_ImageZoom.Width - opm_Form_ImageZoom.ClientWidth) + opm_Image_ZoomImage.Picture.Width;
0070: WSizeY := (opm_Form_ImageZoom.Height - opm_Form_ImageZoom.ClientHeight) + opm_Image_ZoomImage.Picture.Height;
0071: IF (WSizeX > MaxX) THEN
0072: BEGIN
0073: opm_Form_ImageZoom.Width := MaxX;
0074: HorzScrollBar.Range := opm_Image_ZoomImage.Picture.Width;
0075: HorzScrollBar.Position := 0;
0076: END
0077: ELSE
0078: BEGIN
0079: opm_Form_ImageZoom.ClientWidth := opm_Image_ZoomImage.Picture.Width;
0080: HorzScrollBar.Range := opm_Image_ZoomImage.Picture.Width;
0081: END;
0082: IF (WSizeY > MaxY) THEN
0083: BEGIN
0084: opm_Form_ImageZoom.Height := MaxY;
0085: VertScrollBar.Range := opm_Image_ZoomImage.Picture.Height;
0086: VertScrollBar.Position := 0;
0087: END
0088: ELSE
0089: BEGIN
0090: opm_Form_ImageZoom.ClientHeight := opm_Image_ZoomImage.Picture.Height;
0091: VertScrollBar.Range := opm_Image_ZoomImage.Picture.Height;
0092: END;
0093: opm_Image_ZoomImage.Hint := opm_Image_ZoomImage.Hint + #13#10#13#10 + _('Click to close...');
0094: opm_Form_ImageZoom.Top := ((MaxY - opm_Form_ImageZoom.Height) DIV 2);
0095: opm_Form_ImageZoom.Left := ((MaxX - opm_Form_ImageZoom.Width) DIV 2);
0096: PRopm_Sound ('RestoreUp', opmG_UISilent);
0097: end;
0098:
0099: {%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%}
0100: {%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%}
0101: procedure Topm_Form_ImageZoom.FormCreate(Sender: TObject);
0102: begin
0103: opm_Image_ZoomImage.Cursor := crHandPoint;
0104: TranslateComponent (self);
0105: end;
0106:
0107: {%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%}
0108: {%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%}
0109: procedure Topm_Form_ImageZoom.FormDeactivate(Sender: TObject);
0110: begin
0111: PRopm_Sound ('RestoreDown', opmG_UISilent);
0112: opm_Form_ImageZoom.Close;
0113: end;
0114:
0115:
0116:
0117: {%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%}
0118: {%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%}
0119: procedure Topm_Form_ImageZoom.FormKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
0120: begin
0121: CASE Key OF
0122: VK_RETURN, VK_SPACE, VK_ESCAPE : opm_Form_ImageZoom.Close;
0123: VK_LEFT : HorzScrollBar.Position := HorzScrollBar.Position - HorzScrollBar.Increment;
0124: VK_RIGHT : HorzScrollBar.Position := HorzScrollBar.Position + HorzScrollBar.Increment;
0125: VK_UP : VertScrollBar.Position := VertScrollBar.Position - VertScrollBar.Increment;
0126: VK_DOWN : VertScrollBar.Position := VertScrollBar.Position + VertScrollBar.Increment;
0127: END;
0128: end;
0129:
0130:
0131: {%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%}
0132: {%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%}
0133: procedure Topm_Form_ImageZoom.FormHide(Sender: TObject);
0134: begin
0135: opm_Image_ZoomImage.Picture := NIL;
0136: end;
0137:
0138: end.
