extension/internal/win32.cpp

	win32.cpp revision 840c7e40984a84ece8179242a97caa01b52810d9
#define __SP_MODULE_WIN32_C__

/*
 * Windows stuff
 *
 * Author:
 *   Lauris Kaplinski <lauris@kaplinski.com>
 *
 * This code is in public domain
 */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <glib/gmem.h>
#include <libnr/nr-macros.h>
#include <libnr/nr-matrix.h>

#include "display/nr-arena-item.h"
#include "display/nr-arena.h"
#include "document.h"

#include "win32.h"
#include "extension/system.h"
#include "extension/print.h"
#include <gtk/gtk.h>

/* Initialization */

namespace Inkscape {
namespace Extension {
namespace Internal {

static unsigned int SPWin32Modal = FALSE;

/**
 * Callback function..  not a method
 */
static void
my_gdk_event_handler (GdkEvent *event)
{
	if (SPWin32Modal) {
		/* Win32 widget is modal, filter events */
		switch (event->type) {
		case GDK_NOTHING:
		case GDK_DELETE:
		case GDK_SCROLL:
		case GDK_BUTTON_PRESS:
		case GDK_2BUTTON_PRESS:
		case GDK_3BUTTON_PRESS:
		case GDK_BUTTON_RELEASE:
		case GDK_KEY_PRESS:
		case GDK_KEY_RELEASE:
		case GDK_DRAG_STATUS:
		case GDK_DRAG_ENTER:
		case GDK_DRAG_LEAVE:
		case GDK_DRAG_MOTION:
		case GDK_DROP_START:
		case GDK_DROP_FINISHED:
			return;
			break;
		default:
			break;
		}
	}
	gtk_main_do_event (event);
}

void
PrintWin32::main_init (int argc, char **argv, const char *name)
{
	gdk_event_handler_set ((GdkEventFunc) my_gdk_event_handler, NULL, NULL);
}

void
PrintWin32::finish (void)
{
}

#define SP_FOREIGN_MAX_ITER 10


/**
 * Callback function..  not a method
 */
static VOID CALLBACK
my_timer (HWND hwnd, UINT uMsg, UINT_PTR idEvent, DWORD dwTime)
{
	int cdown = 0;
	while ((cdown++ < SP_FOREIGN_MAX_ITER) && gdk_events_pending ()) {
		gtk_main_iteration_do (FALSE);
	}
	gtk_main_iteration_do (FALSE);
}


/* Platform detection */

gboolean
PrintWin32::is_os_wide()
{
	static gboolean initialized = FALSE;
	static gboolean is_wide = FALSE;
	static OSVERSIONINFOA osver;

	if ( !initialized )
	{
		BOOL result;

		initialized = TRUE;

		memset (&osver, 0, sizeof(OSVERSIONINFOA));
		osver.dwOSVersionInfoSize = sizeof(OSVERSIONINFOA);
		result = GetVersionExA (&osver);
		if (result)
		{
			if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT)
				is_wide = TRUE;
		}
		// If we can't even call to get the version, fall back to ANSI API
	}

	return is_wide;
}


/* Printing */

PrintWin32::PrintWin32 (void)
{
	/* Nothing here */
}


PrintWin32::~PrintWin32 (void)
{
	DeleteDC (_hDC);
}


/**
 * Callback function..  not a method
 */
static UINT_PTR CALLBACK
print_hook (HWND hdlg, UINT uiMsg, WPARAM wParam, LPARAM lParam)
{
#if 0
	int cdown = 0;
	while ((cdown++ < SP_FOREIGN_MAX_ITER) && gdk_events_pending ()) {
		gtk_main_iteration_do (FALSE);
	}
	gtk_main_iteration_do (FALSE);
#endif
	return 0;
}

unsigned int
PrintWin32::setup (Inkscape::Extension::Print *mod)
{
	HRESULT res;
	PRINTDLG pd = {
		sizeof (PRINTDLG),
		NULL, /* hwndOwner */
		NULL, /* hDevMode */
		NULL, /* hDevNames */
		NULL, /* hDC */
		PD_NOPAGENUMS | PD_NOSELECTION | PD_RETURNDC | PD_USEDEVMODECOPIESANDCOLLATE, /* Flags */
		1, 1, 1, 1, /* nFromPage, nToPage, nMinPage, nMaxPage */
		1, /* nCoies */
		NULL, /* hInstance */
		0, /* lCustData */
		NULL, NULL, NULL, NULL, NULL, NULL
	};
	UINT_PTR timer;

	SPWin32Modal = TRUE;
	pd.Flags |= PD_ENABLEPRINTHOOK;
	pd.lpfnPrintHook = print_hook;
	timer = SetTimer (NULL, 0, 40, my_timer);

	res = PrintDlg (&pd);

	KillTimer (NULL, timer);
	SPWin32Modal = FALSE;

	if (!res) return FALSE;

	_hDC = pd.hDC;

#if 0
	caps = GetDeviceCaps (_hDC, RASTERCAPS);
	if (caps & RC_BANDING) {
		printf ("needs banding\n");
	}
	if (caps & RC_BITBLT) {
		printf ("does bitblt\n");
	}
	if (caps & RC_DIBTODEV) {
		printf ("does dibtodev\n");
	}
	if (caps & RC_STRETCHDIB) {
		printf ("does stretchdib\n");
	}
#endif
	if (pd.hDevMode) {
		DEVMODE *devmodep;
		devmodep = (DEVMODE *)pd.hDevMode;
		if (devmodep->dmFields & DM_ORIENTATION) {
			_landscape = (devmodep->dmOrientation == DMORIENT_LANDSCAPE);
		}
	}

	return TRUE;
}

unsigned int
PrintWin32::begin (Inkscape::Extension::Print *mod, SPDocument *doc)
{
	DOCINFO di = {
		sizeof (DOCINFO),
		NULL, /* lpszDocName */
		NULL, /* lpszOutput */
		NULL, /* lpszDatatype */
		0 /* DI_APPBANDING */ /* fwType */
	};
	int res;

	_PageWidth = sp_document_width (doc);
	_PageHeight = sp_document_height (doc);

	di.lpszDocName = SP_DOCUMENT_NAME (doc);

	SPWin32Modal = TRUE;

	res = StartDoc (_hDC, &di);
	res = StartPage (_hDC);

	SPWin32Modal = FALSE;

	return 0;
}

unsigned int
PrintWin32::finish (Inkscape::Extension::Print *mod)
{
	int dpiX, dpiY;
	int pPhysicalWidth, pPhysicalHeight;
	int pPhysicalOffsetX, pPhysicalOffsetY;
	int pPrintableWidth, pPrintableHeight;
	float scalex, scaley;
	int x0, y0, x1, y1;
	int width, height;
	NR::Matrix affine;
	unsigned char *px;
	int sheight, row;
	BITMAPINFO bmInfo = {
		{
			sizeof (BITMAPINFOHEADER), // bV4Size
			64,      // biWidth
			64,      // biHeight
			1,       // biPlanes
			32,      // biBitCount
			BI_RGB,  // biCompression
			0,       // biSizeImage
			2835,    // biXPelsPerMeter
			2835,    // biYPelsPerMeter
			0,       // biClrUsed
			0        // biClrImportant
		},
		{ { 0, 0, 0, 0 } } // bmiColors
	};
	//RECT wrect;
	int res;

	SPWin32Modal = TRUE;

	// Number of pixels per logical inch
	dpiX = (int) GetDeviceCaps (_hDC, LOGPIXELSX);
	dpiY = (int) GetDeviceCaps (_hDC, LOGPIXELSY);
	// Size in pixels of the printable area
	pPhysicalWidth = GetDeviceCaps (_hDC, PHYSICALWIDTH);
	pPhysicalHeight = GetDeviceCaps (_hDC, PHYSICALHEIGHT);
	// Top left corner of prontable area
	pPhysicalOffsetX = GetDeviceCaps (_hDC, PHYSICALOFFSETX);
	pPhysicalOffsetY = GetDeviceCaps (_hDC, PHYSICALOFFSETY);
	// Size in pixels of the printable area
	pPrintableWidth = GetDeviceCaps (_hDC, HORZRES);
	pPrintableHeight = GetDeviceCaps (_hDC, VERTRES);

	// Scaling from document to device
	scalex = dpiX / 72.0;
	scaley = dpiY / 72.0;

	// We simply map document 0,0 to physical page 0,0
	affine[0] = scalex / 1.25;
	affine[1] = 0.0;
	affine[2] = 0.0;
	affine[3] = scaley / 1.25;
	affine[4] = 0.0;
	affine[5] = 0.0;

	nr_arena_item_set_transform (mod->root, &affine);

	// Calculate printable area in device coordinates
	x0 = pPhysicalOffsetX;
	y0 = pPhysicalOffsetY;
	x1 = x0 + pPrintableWidth;
	y1 = y0 + pPrintableHeight;
	x1 = MIN (x1, (int) (_PageWidth * scalex));
	y1 = MIN (y1, (int) (_PageHeight * scaley));

	width = x1 - x0;
	height = y1 - y0;

	px = g_new (unsigned char, 4 * 64 * width);
	sheight = 64;

	/* Printing goes here */
	for (row = 0; row < height; row += 64) {
		NRPixBlock pb;
		NRRectL bbox;
		NRGC gc(NULL);
		int num_rows;
		int i;

		num_rows = sheight;
		if ((row + num_rows) > height) num_rows = height - row;

		/* Set area of interest */
		bbox.x0 = x0;
		bbox.y0 = y0 + row;
		bbox.x1 = bbox.x0 + width;
		bbox.y1 = bbox.y0 + num_rows;
		/* Update to renderable state */
		gc.transform.set_identity();
		nr_arena_item_invoke_update (mod->root, &bbox, &gc, NR_ARENA_ITEM_STATE_ALL, NR_ARENA_ITEM_STATE_NONE);

		nr_pixblock_setup_extern (&pb, NR_PIXBLOCK_MODE_R8G8B8A8N, bbox.x0, bbox.y0, bbox.x1, bbox.y1, px, 4 * (bbox.x1 - bbox.x0), FALSE, FALSE);

		/* Blitter goes here */
		bmInfo.bmiHeader.biWidth = bbox.x1 - bbox.x0;
		bmInfo.bmiHeader.biHeight = -(bbox.y1 - bbox.y0);

		memset (px, 0xff, 4 * num_rows * width);
		/* Render */
		nr_arena_item_invoke_render (NULL, mod->root, &bbox, &pb, 0);

		/* Swap red and blue channels; we use RGBA, whereas
		 * the Win32 GDI uses BGRx.
		 */
		for ( i = 0 ; i < num_rows * width ; i++ ) {
			unsigned char temp=px[i*4];
			px[i*4] = px[i*4+2];
			px[i*4+2] = temp;
		}

		SetStretchBltMode(_hDC, COLORONCOLOR);
		res = StretchDIBits (_hDC,
						bbox.x0 - x0, bbox.y0 - y0, bbox.x1 - bbox.x0, bbox.y1 - bbox.y0,
						0, 0, bbox.x1 - bbox.x0, bbox.y1 - bbox.y0,
						px,
						&bmInfo,
                        DIB_RGB_COLORS,
                        SRCCOPY);

		/* Blitter ends here */

		nr_pixblock_release (&pb);
	}

	g_free (px);

	res = EndPage (_hDC);
	res = EndDoc (_hDC);

	SPWin32Modal = FALSE;

	return 0;
}

/* File dialogs */

char *
PrintWin32::get_open_filename (unsigned char *dir, unsigned char *filter, unsigned char *title)
{
	char fnbuf[4096] = {0};
	OPENFILENAME ofn = {
		sizeof (OPENFILENAME),
		NULL, /* hwndOwner */
		NULL, /* hInstance */
		(const CHAR *)filter, /* lpstrFilter */
		NULL, /* lpstrCustomFilter */
		0, /* nMaxCustFilter  */
		1, /* nFilterIndex */
		fnbuf, /* lpstrFile */
		sizeof (fnbuf), /* nMaxFile */
		NULL, /* lpstrFileTitle */
		0, /* nMaxFileTitle */
		(const CHAR *)dir, /* lpstrInitialDir */
		(const CHAR *)title, /* lpstrTitle */
		OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY, /* Flags */
		0, /* nFileOffset */
		0, /* nFileExtension */
		NULL, /* lpstrDefExt */
		0, /* lCustData */
		NULL, /* lpfnHook */
		NULL /* lpTemplateName */
	};
	int retval;
	UINT_PTR timer;

	SPWin32Modal = TRUE;
	timer = SetTimer (NULL, 0, 40, my_timer);

	retval = GetOpenFileName (&ofn);

	KillTimer (NULL, timer);
	SPWin32Modal = FALSE;

	if (!retval) {
		int errcode;
		errcode = CommDlgExtendedError();
		return NULL;
    }
	return g_strdup (fnbuf);
}

char *
PrintWin32::get_write_filename (unsigned char *dir, unsigned char *filter, unsigned char *title)
{
	return NULL;
}

char *
PrintWin32::get_save_filename (unsigned char *dir, unsigned int *spns)
{
	char fnbuf[4096] = {0};
	OPENFILENAME ofn = {
		sizeof (OPENFILENAME),
		NULL, /* hwndOwner */
		NULL, /* hInstance */
		"Inkscape SVG (*.svg)\0*\0Plain SVG (*.svg)\0*\0", /* lpstrFilter */
		NULL, /* lpstrCustomFilter */
		0, /* nMaxCustFilter  */
		1, /* nFilterIndex */
		fnbuf, /* lpstrFile */
		sizeof (fnbuf), /* nMaxFile */
		NULL, /* lpstrFileTitle */
		0, /* nMaxFileTitle */
		(const CHAR *)dir, /* lpstrInitialDir */
		"Save document to file", /* lpstrTitle */
		OFN_HIDEREADONLY, /* Flags */
		0, /* nFileOffset */
		0, /* nFileExtension */
		NULL, /* lpstrDefExt */
		0, /* lCustData */
		NULL, /* lpfnHook */
		NULL /* lpTemplateName */
	};
	int retval;
	UINT_PTR timer;

	SPWin32Modal = TRUE;
	timer = SetTimer (NULL, 0, 40, my_timer);

	retval = GetSaveFileName (&ofn);

	KillTimer (NULL, timer);
	SPWin32Modal = FALSE;

	if (!retval) {
		int errcode;
		errcode = CommDlgExtendedError();
		return NULL;
    }
	*spns = (ofn.nFilterIndex != 2);
	return g_strdup (fnbuf);
}

#include "clear-n_.h"

void
PrintWin32::init (void)
{
	Inkscape::Extension::Extension * ext;

	/* SVG in */
    ext = Inkscape::Extension::build_from_mem(
		"<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
			"<name>" N_("Windows 32-bit Print") "</name>\n"
			"<id>" SP_MODULE_KEY_PRINT_WIN32 "</id>\n"
			"<param name=\"textToPath\" type=\"boolean\">true</param>\n"
			"<print/>\n"
		"</inkscape-extension>", new PrintWin32());

	return;
}

}  /* namespace Internal */
}  /* namespace Extension */
}  /* namespace Inkscape */