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/*
* Fl_GDI_Printer.cxx
*/
#ifdef WIN32
#include <FL/Fl_Printer.H>
#include <FL/fl_ask.H>
#include <math.h>
extern HWND fl_window;
Fl_GDI_Printer::Fl_GDI_Printer(void) : Fl_Virtual_Printer() {
hPr = NULL;
type_ = gdi_printer;
}
static void WIN_SetupPrinterDeviceContext(HDC prHDC)
{
if ( !prHDC ) return;
fl_window = 0;
fl_gc = prHDC;
SetGraphicsMode(prHDC, GM_ADVANCED); // to allow for rotations
SetMapMode(prHDC, MM_ANISOTROPIC);
SetTextAlign(prHDC, TA_BASELINE|TA_LEFT);
SetBkMode(prHDC, TRANSPARENT);
// this matches 720 logical units to the number of device units in 10 inches of paper
// thus the logical unit is the point (= 1/72 inch)
SetWindowExtEx(prHDC, 720, 720, NULL);
SetViewportExtEx(prHDC, 10*GetDeviceCaps(prHDC, LOGPIXELSX), 10*GetDeviceCaps(prHDC, LOGPIXELSY), NULL);
}
int Fl_GDI_Printer::start_job (int pagecount, int *frompage, int *topage)
// returns 0 iff OK
{
DWORD commdlgerr;
DOCINFO di;
char docName [256];
int err = 0;
abortPrint = FALSE;
memset (&pd, 0, sizeof (PRINTDLG));
pd.lStructSize = sizeof (PRINTDLG);
pd.hwndOwner = GetForegroundWindow();
pd.Flags = PD_RETURNDC | PD_USEDEVMODECOPIESANDCOLLATE | PD_NOSELECTION;
pd.nMinPage = 1;
pd.nMaxPage = pagecount;
if (PrintDlg (&pd) != 0) {
hPr = pd.hDC;
if (hPr != NULL) {
strcpy (docName, "FLTK");
memset(&di, 0, sizeof(DOCINFO));
di.cbSize = sizeof (DOCINFO);
di.lpszDocName = (LPCSTR) docName;
prerr = StartDoc (hPr, &di);
if (prerr < 1) {
abortPrint = TRUE;
fl_alert ("StartDoc error %d", prerr);
err = 1;
}
} else {
commdlgerr = CommDlgExtendedError ();
fl_alert ("Unable to create print context, error %lu",
(unsigned long) commdlgerr);
err = 1;
}
} else {
err = 1;
}
if(!err) {
if((pd.Flags & PD_PAGENUMS) != 0 ) {
if (frompage) *frompage = pd.nFromPage;
if (topage) *topage = pd.nToPage;
}
else {
if (frompage) *frompage = 1;
if (topage) *topage = pagecount;
}
x_offset = 0;
y_offset = 0;
this->set_current();
}
return err;
}
void Fl_GDI_Printer::end_job (void)
{
Fl_Device::display_device()->set_current();
if (hPr != NULL) {
if (! abortPrint) {
prerr = EndDoc (hPr);
if (prerr < 0) {
fl_alert ("EndDoc error %d", prerr);
}
}
DeleteDC (hPr);
if (pd.hDevMode != NULL) {
GlobalFree (pd.hDevMode);
}
if (pd.hDevNames != NULL) {
GlobalFree (pd.hDevNames);
}
}
}
void Fl_GDI_Printer::absolute_printable_rect(int *x, int *y, int *w, int *h)
{
POINT physPageSize;
POINT pixelsPerInch;
if (hPr == NULL) return;
SetWindowOrgEx(fl_gc, 0, 0, NULL);
physPageSize.x = GetDeviceCaps(hPr, HORZRES);
physPageSize.y = GetDeviceCaps(hPr, VERTRES);
DPtoLP(hPr, &physPageSize, 1);
*w = physPageSize.x + 1;
*h = physPageSize.y + 1;
pixelsPerInch.x = GetDeviceCaps(hPr, LOGPIXELSX);
pixelsPerInch.y = GetDeviceCaps(hPr, LOGPIXELSY);
DPtoLP(hPr, &pixelsPerInch, 1);
left_margin = (pixelsPerInch.x / 4);
*w -= (pixelsPerInch.x / 2);
top_margin = (pixelsPerInch.y / 4);
*h -= (pixelsPerInch.y / 2);
*x = left_margin;
*y = top_margin;
origin(x_offset, y_offset);
}
void Fl_GDI_Printer::margins(int *left, int *top, int *right, int *bottom)
{
int x, y, w, h;
absolute_printable_rect(&x, &y, &w, &h);
if (left) *left = x;
if (top) *top = y;
if (right) *right = x;
if (bottom) *bottom = y;
}
int Fl_GDI_Printer::printable_rect(int *w, int *h)
{
int x, y;
absolute_printable_rect(&x, &y, w, h);
return 0;
}
int Fl_GDI_Printer::start_page (void)
{
int rsult, w, h;
rsult = 0;
if (hPr != NULL) {
WIN_SetupPrinterDeviceContext (hPr);
prerr = StartPage (hPr);
if (prerr < 0) {
fl_alert ("StartPage error %d", prerr);
rsult = 1;
}
printable_rect(&w, &h);
origin(0, 0);
image_list_ = NULL;
fl_clip_region(0);
gc = (void *)fl_gc;
}
return rsult;
}
void Fl_GDI_Printer::origin (int deltax, int deltay)
{
SetWindowOrgEx(fl_gc, - left_margin - deltax, - top_margin - deltay, NULL);
x_offset = deltax;
y_offset = deltay;
}
void Fl_GDI_Printer::scale (float scalex, float scaley)
{
int w, h;
SetWindowExtEx(fl_gc, (int)(720 / scalex + 0.5), (int)(720 / scaley + 0.5), NULL);
printable_rect(&w, &h);
origin(0, 0);
}
void Fl_GDI_Printer::rotate (float rot_angle)
{
XFORM mat;
float angle;
angle = - rot_angle * M_PI / 180.;
mat.eM11 = cos(angle);
mat.eM12 = sin(angle);
mat.eM21 = - mat.eM12;
mat.eM22 = mat.eM11;
mat.eDx = mat.eDy = 0;
SetWorldTransform(fl_gc, &mat);
}
int Fl_GDI_Printer::end_page (void)
{
int rsult;
rsult = 0;
if (hPr != NULL) {
prerr = EndPage (hPr);
if (prerr < 0) {
abortPrint = TRUE;
fl_alert ("EndPage error %d", prerr);
rsult = 1;
}
}
delete_image_list();
gc = NULL;
return rsult;
}
static int translate_stack_depth = 0;
const int translate_stack_max = 5;
static int translate_stack_x[translate_stack_max];
static int translate_stack_y[translate_stack_max];
static void do_translate(int x, int y)
{
XFORM tr;
tr.eM11 = tr.eM22 = 1;
tr.eM12 = tr.eM21 = 0;
tr.eDx = x;
tr.eDy = y;
ModifyWorldTransform(fl_gc, &tr, MWT_LEFTMULTIPLY);
}
void Fl_GDI_Printer::translate (int x, int y)
{
do_translate(x, y);
if (translate_stack_depth < translate_stack_max) {
translate_stack_x[translate_stack_depth] = x;
translate_stack_y[translate_stack_depth] = y;
translate_stack_depth++;
}
}
void Fl_GDI_Printer::untranslate (void)
{
if (translate_stack_depth > 0) {
translate_stack_depth--;
do_translate( - translate_stack_x[translate_stack_depth], - translate_stack_y[translate_stack_depth] );
}
}
#endif // WIN32
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