add API to set DPI

amiga/font.c

@@ -25,8 +25,7 @@
 #include "amiga/object.h"
 #include "amiga/schedule.h"
 #include "utils/nsoption.h"
-#include "css/css.h"
-#include "css/utils.h"
+#include "desktop/browser.h"
 #include "render/font.h"
 #include "utils/log.h"
 #include "utils/utf8.h"
@@ -869,7 +868,7 @@ static void ami_font_cleanup(struct MinList *ami_font_list)
 				node->dtz_Node.ln_Name, curtime.Seconds));
 			DelObject(node);
 		}
-	}while(node=nnode);
+	} while(node=nnode);
 
 	/* reschedule to run in five minutes */
 	ami_schedule(300000, ami_font_cleanup, ami_font_list);
@@ -882,7 +881,7 @@ void ami_font_setdevicedpi(int id)
 	ULONG ydpi = nsoption_int(screen_ydpi);
 	ULONG xdpi = nsoption_int(screen_ydpi);
 
-	nscss_screen_dpi = INTTOFIX(nsoption_int(screen_ydpi));
+	browser_set_dpi(nsoption_int(screen_ydpi));
 
 	if(id && (nsoption_int(monitor_aspect_x) != 0) && (nsoption_int(monitor_aspect_y) != 0))
 	{

atari/plot/font_freetype.c

@@ -93,8 +93,6 @@ fantasy.ttf => Fantasy
 #define CACHE_MIN_SIZE (100 * 1024)
 #define BOLD_WEIGHT 700
 
-extern css_fixed nscss_screen_dpi;
-
 extern unsigned long atari_plot_flags;
 extern int atari_plot_vdi_handle;
 
@@ -245,11 +243,11 @@ static void ft_fill_scalar(const plot_font_style_t *fstyle, FTC_Scaler srec)
 	srec->width = srec->height = (fstyle->size * 64) / FONT_SIZE_SCALE;
 	srec->pixel = 0;
 
-	/* calculate x/y resolution, when nscss_screen_dpi isn't available 	*/
-	/* 72 is an good value. 											*/
-	/* TODO: because nscss_screen_dpi is to large, calculate that value */
-	/*       by VDI values. 											*/
-	srec->x_res = srec->y_res = 72; // FIXTOINT(nscss_screen_dpi);
+	/* calculate x/y resolution, when browser_get_dpi() isn't available */
+	/* 72 is an good value. */
+	/* TODO: because browser_get_dpi() is to large, calculate that value */
+	/*       by VDI values. */
+	srec->x_res = srec->y_res = 72; // browser_get_dpi();
 }
 
 static FT_Glyph ft_getglyph(const plot_font_style_t *fstyle, uint32_t ucs4)

cocoa/plotter.m

@@ -22,10 +22,10 @@
 #import "cocoa/plotter.h"
 #import "cocoa/bitmap.h"
 
+#import "desktop/browser.h"
 #import "desktop/plotters.h"
 #import "desktop/plot_style.h"
 #import "utils/log.h"
-#import "css/utils.h"
 
 static void cocoa_plot_render_path(NSBezierPath *path,const plot_style_t *pstyle);
 static void cocoa_plot_path_set_stroke_pattern(NSBezierPath *path,const plot_style_t *pstyle);
@@ -323,7 +323,7 @@ void cocoa_update_scale_factor( void )
 	const CGFloat scale = [[NSScreen mainScreen] userSpaceScaleFactor];
 	cocoa_scale_factor = scale == 1.0 ? 1.0 : 1.0 / scale;
 	cocoa_half_pixel = 0.5 * cocoa_scale_factor;
-	nscss_screen_dpi = FLTTOFIX( points_per_inch * scale );
+        browser_set_dpi( points_per_inch * scale );
 }
 
 static inline void cocoa_center_pixel( bool x, bool y ) 

desktop/browser.c

@@ -53,6 +53,7 @@
 #include "desktop/scrollbar.h"
 #include "desktop/selection.h"
 #include "desktop/plotters.h"
+#include "css/utils.h"
 
 #include "javascript/js.h"
 
@@ -3124,3 +3125,17 @@ bool browser_window_stop_available(struct browser_window *bw)
 			(content_get_status(bw->current_content) != 
 			CONTENT_STATUS_DONE))));
 }
+
+/* exported interface documented in browser.h */
+nserror browser_set_dpi(int dpi)
+{
+	nscss_screen_dpi = INTTOFIX(dpi);
+
+	return NSERROR_OK;
+}
+
+/* exported interface documented in browser.h */
+int browser_get_dpi(void)
+{
+	return FIXTOINT(nscss_screen_dpi);
+}

desktop/browser.h

@@ -460,4 +460,18 @@ nserror browser_window_debug_dump(struct browser_window *bw, FILE *f, enum conte
 void theme_install_start(struct hlcache_handle *c);
 #endif
 
+/**
+ * Set the DPI of the browser.
+ *
+ * \param dpi The DPI to set.
+ */
+nserror browser_set_dpi(int dpi);
+
+/**
+ * Get the browser DPI.
+ *
+ * \return The DPI in use.
+ */
+int browser_get_dpi(void);
+
 #endif

framebuffer/font_freetype.c

@@ -27,10 +27,9 @@
 #include "utils/utf8.h"
 #include "utils/log.h"
 #include "utils/nsoption.h"
-#include "css/css.h"
-#include "css/utils.h"
 #include "render/font.h"
 #include "desktop/gui.h"
+#include "desktop/browser.h"
 
 #include "framebuffer/gui.h"
 #include "framebuffer/font.h"
@@ -378,7 +377,7 @@ static void fb_fill_scalar(const plot_font_style_t *fstyle, FTC_Scaler srec)
 	srec->width = srec->height = (fstyle->size * 64) / FONT_SIZE_SCALE;
 	srec->pixel = 0;
 
-	srec->x_res = srec->y_res = FIXTOINT(nscss_screen_dpi);
+	srec->x_res = srec->y_res = browser_get_dpi();
 }
 
 FT_Glyph fb_getglyph(const plot_font_style_t *fstyle, uint32_t ucs4)

gtk/gui.c

@@ -55,7 +55,6 @@
 #include "desktop/sslcert_viewer.h"
 #include "desktop/textinput.h"
 #include "desktop/tree.h"
-#include "css/utils.h"
 #include "render/form.h"
 #include "utils/filepath.h"
 #include "utils/log.h"
@@ -412,10 +411,8 @@ static nserror nsgtk_init(int argc, char** argv, char **respath)
 	 * find that out here, rather than when we create a first browser
 	 * window.
 	 */
-
-	nscss_screen_dpi = FLTTOFIX(gdk_screen_get_resolution(
-					    gdk_screen_get_default()));
-	LOG(("Set CSS DPI to %f", FIXTOFLT(nscss_screen_dpi)));
+	browser_set_dpi(gdk_screen_get_resolution(gdk_screen_get_default()));
+	LOG(("Set CSS DPI to %d", browser_get_dpi()));
 
 	if (nsgtk_history_init(glade_file_location->history) == false)
 		die("Unable to initialise history window.\n");

windows/gui.c

@@ -1219,7 +1219,7 @@ static HWND nsws_window_create(struct gui_window *gw)
 	/* set the gui window associated with this browser */
 	SetProp(hwnd, TEXT("GuiWnd"), (HANDLE)gw);
 
-	nscss_screen_dpi = get_window_dpi(hwnd);
+	browser_set_dpi(get_window_dpi(hwnd));
 
 	if ((nsoption_int(window_width) >= 100) &&
 	    (nsoption_int(window_height) >= 100) &&