]> git.lyx.org Git - lyx.git/blobdiff - src/frontends/xforms/FormGraphics.C
Introduce LFUN_PRINT.
[lyx.git] / src / frontends / xforms / FormGraphics.C
index c7ad869e0d12bc20d5f6ad5037aeaf65334e0fbb..af3f41d5cccedf081fc626648ca5f27369ac51d5 100644 (file)
@@ -1,38 +1,52 @@
 /**
  * \file FormGraphics.C
- * See the file COPYING.
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
  *
  * \author Baruch Even
- * \author Herbert Voss
+ * \author Herbert Voß
+ * \author Rob Lahaye
  *
- * Full author contact details are available in file CREDITS
+ * Full author contact details are available in file CREDITS.
  */
 
 #include <config.h>
 
-#ifdef __GNUG__
-#pragma implementation
-#endif
-
-#include "xformsBC.h"
-#include "ControlGraphics.h"
 #include "FormGraphics.h"
+#include "ControlGraphics.h"
 #include "forms/form_graphics.h"
-#include "Alert.h"
-#include "Tooltips.h"
 
-#include "xforms_helpers.h"
-#include "helper_funcs.h"
+#include "controllers/helper_funcs.h"
+
+#include "checkedwidgets.h"
 #include "input_validators.h"
-#include "debug.h" // for lyxerr
-#include "support/lstrings.h"  // for strToDbl & tostr
-#include "support/filetools.h"  // for MakeAbsPath etc
-#include "insets/insetgraphicsParams.h"
+#include "Tooltips.h"
+#include "xforms_helpers.h"
+#include "xformsBC.h"
+
 #include "lyxrc.h" // for lyxrc.display_graphics
-#include FORMS_H_LOCATION
+
+#include "insets/insetgraphicsParams.h"
+
+#include "frontends/Alert.h"
+
+#include "support/lyxlib.h"  // for float_equal
+#include "support/tostr.h"
+
+#include "lyx_forms.h"
+
+using lyx::support::bformat;
+using lyx::support::float_equal;
+using lyx::support::getStringFromVector;
+using lyx::support::strToDbl;
+using lyx::support::strToInt;
+using lyx::support::token;
 
 using std::endl;
+
 using std::vector;
+using std::string;
+
 
 namespace {
 
@@ -42,19 +56,19 @@ int const FILENAME_MAXCHARS = 1024;
 
 string defaultUnit("cm");
 
-/// Given input and choice widgets, create a LyXLength
-LyXLength getLyXLengthFromWidgets(FL_OBJECT * input, FL_OBJECT * choice)
-{
-       return LyXLength(getLengthFromWidgets(input, choice));
-}
+#if FL_VERSION == 0 || (FL_REVISION == 0 && FL_FIXLEVEL < 2)
+bool const scalableTabfolders = false;
+#else
+bool const scalableTabfolders = true;
+#endif
 
 } // namespace anon
 
 
-typedef FormCB<ControlGraphics, FormDB<FD_graphics> > base_class;
+typedef FormController<ControlGraphics, FormView<FD_graphics> > base_class;
 
-FormGraphics::FormGraphics()
-       : base_class(_("Graphics"), false)
+FormGraphics::FormGraphics(Dialog & parent)
+       : base_class(parent, _("Graphics"), scalableTabfolders)
 {}
 
 
@@ -74,137 +88,155 @@ void FormGraphics::build()
 {
        dialog_.reset(build_graphics(this));
 
-       // Allow the base class to control messages
-       setMessageWidget(dialog_->text_warning);
-
        // Manage the ok, apply, restore and cancel/close buttons
-       bc().setOK(dialog_->button_ok);
-       bc().setApply(dialog_->button_apply);
-       bc().setCancel(dialog_->button_close);
-       bc().setRestore(dialog_->button_restore);
+       bcview().setOK(dialog_->button_ok);
+       bcview().setApply(dialog_->button_apply);
+       bcview().setCancel(dialog_->button_close);
+       bcview().setRestore(dialog_->button_restore);
 
-       // the file section
+       // The file section.
        file_.reset(build_graphics_file(this));
 
-       fl_set_input_return (file_->input_filename, FL_RETURN_CHANGED);
-       fl_set_input_return (file_->input_lyxscale, FL_RETURN_CHANGED);
-       fl_set_input_return (file_->input_width, FL_RETURN_CHANGED);
-       fl_set_input_return (file_->input_height, FL_RETURN_CHANGED);
+       // Disable for read-only documents.
+       bcview().addReadOnly(file_->button_browse);
+       bcview().addReadOnly(file_->check_aspectratio);
+       bcview().addReadOnly(file_->check_draft);
+       bcview().addReadOnly(file_->check_nounzip);
 
+       // Check validity of "length + unit" input.
+       addCheckedGlueLength(bcview(), file_->input_width);
+       addCheckedGlueLength(bcview(), file_->input_height);
+
+       // Trigger an input event for cut&paste with middle mouse button.
        setPrehandler(file_->input_filename);
        setPrehandler(file_->input_lyxscale);
        setPrehandler(file_->input_width);
        setPrehandler(file_->input_height);
 
+       // Activate ok/apply immediately upon input.
+       fl_set_input_return(file_->input_filename, FL_RETURN_CHANGED);
+       fl_set_input_return(file_->input_lyxscale, FL_RETURN_CHANGED);
+       fl_set_input_return(file_->input_width, FL_RETURN_CHANGED);
+       fl_set_input_return(file_->input_height, FL_RETURN_CHANGED);
+
        fl_set_input_maxchars(file_->input_filename, FILENAME_MAXCHARS);
        fl_set_input_filter(file_->input_lyxscale, fl_unsigned_int_filter);
 
-        // width default is scaling, thus unsigned integer input
-       fl_set_input_filter(file_->input_width, fl_unsigned_int_filter);
+       // Width default is scaling: use unsigned float filter.
+       fl_set_input_filter(file_->input_width, fl_unsigned_float_filter);
        fl_set_input_maxchars(file_->input_height, SIZE_MAXDIGITS);
 
-
-       string const display_List = _("Default|Monochrome|Grayscale|Color|Do not display");
+       string const display_List =
+               _("Default|Monochrome|Grayscale|Color|Do not display");
        fl_addto_choice(file_->choice_display, display_List.c_str());
-       
-       string const width_list = _("Scale%%|") + choice_Length_All;
+
+       string const width_list = bformat(_("Scale%%%%|%1$s"), choice_Length_All);
        fl_addto_choice(file_->choice_width, width_list.c_str());
 
        fl_addto_choice(file_->choice_height, choice_Length_All.c_str());
 
-       bc().addReadOnly(file_->button_browse);   
-       bc().addReadOnly(file_->check_aspectratio);
-       bc().addReadOnly(file_->check_draft);
-       bc().addReadOnly(file_->check_nounzip);
-
        // set up the tooltips for the filesection
        string str = _("The file you want to insert.");
        tooltips().init(file_->input_filename, str);
        str = _("Browse the directories.");
        tooltips().init(file_->button_browse, str);
 
-       str = _("Scale the image to inserted percentage value");
+       str = _("Scale the image to inserted percentage value.");
        tooltips().init(file_->input_lyxscale, str);
        str = _("Select display mode for this image.");
        tooltips().init(file_->choice_display, str);
 
        str = _("Set the image width to the inserted value.");
        tooltips().init(file_->input_width, str);
-       str = _("Select unit for width; Scale% for scaling whole image");
+       // xgettext:no-c-format
+       str = _("Select unit for width; Scale% for scaling whole image.");
        tooltips().init(file_->choice_width, str);
        str = _("Set the image height to the inserted value.");
        tooltips().init(file_->input_height, str);
-       str = _("Select unit for height");
+       str = _("Select unit for height.");
        tooltips().init(file_->choice_height, str);
-       str = _("Do not distort the image. " 
-                "Keep image within \"width\" by \"height\" and obey aspect ratio.");
+       str = _("Do not distort the image. "
+               "Keep image within \"width\" by \"height\" and obey "
+               "aspect ratio.");
        tooltips().init(file_->check_aspectratio, str);
-
        str = _("Pass a filename like \"file.eps.gz\" to the LaTeX output. "
-           "This is useful when LaTeX should unzip the file. Needs an additional file "
-           "like \"file.eps.bb\" which holds the values for the bounding box.");
+               "Useful when LaTeX should unzip the file. Needs an additional "
+               "file like \"file.eps.bb\" which holds the values for "
+               "the bounding box.");
        tooltips().init(file_->check_nounzip, str);
-
        str = _("Show image only as a rectangle of the original size.");
        tooltips().init(file_->check_draft, str);
 
        // the bounding box selection
        bbox_.reset(build_graphics_bbox(this));
-       fl_set_input_return (bbox_->input_bb_x0, FL_RETURN_CHANGED);
-       fl_set_input_return (bbox_->input_bb_y0, FL_RETURN_CHANGED);
-       fl_set_input_return (bbox_->input_bb_x1, FL_RETURN_CHANGED);
-       fl_set_input_return (bbox_->input_bb_y1, FL_RETURN_CHANGED);
 
-       fl_set_input_filter(bbox_->input_bb_x0, fl_unsigned_float_filter);
-       fl_set_input_filter(bbox_->input_bb_y0, fl_unsigned_float_filter);
-       fl_set_input_filter(bbox_->input_bb_x1, fl_unsigned_float_filter);
-       fl_set_input_filter(bbox_->input_bb_y1, fl_unsigned_float_filter);
+       // disable for read-only documents
+       bcview().addReadOnly(bbox_->button_getBB);
+       bcview().addReadOnly(bbox_->check_clip);
 
+       // check validity of "length + unit" input
+       addCheckedLyXLength(bcview(), bbox_->input_bb_x1, bbox_->text_X);
+
+       // trigger an input event for cut&paste with middle mouse button.
        setPrehandler(bbox_->input_bb_x0);
        setPrehandler(bbox_->input_bb_y0);
        setPrehandler(bbox_->input_bb_x1);
        setPrehandler(bbox_->input_bb_y1);
 
-       string const bb_units = "bp|cm|mm|in";
+       // for activate ok/apply immediately upon input
+       fl_set_input_return(bbox_->input_bb_x0, FL_RETURN_CHANGED);
+       fl_set_input_return(bbox_->input_bb_y0, FL_RETURN_CHANGED);
+       fl_set_input_return(bbox_->input_bb_x1, FL_RETURN_CHANGED);
+       fl_set_input_return(bbox_->input_bb_y1, FL_RETURN_CHANGED);
+
+       fl_set_input_filter(bbox_->input_bb_x0, fl_unsigned_float_filter);
+       fl_set_input_filter(bbox_->input_bb_y0, fl_unsigned_float_filter);
+       fl_set_input_filter(bbox_->input_bb_y1, fl_unsigned_float_filter);
+
+       string const bb_units = getStringFromVector(frnt::getBBUnits(), "|");
        fl_addto_choice(bbox_->choice_bb_units, bb_units.c_str());
-       bc().addReadOnly(bbox_->button_getBB);
-       bc().addReadOnly(bbox_->check_clip);
 
        // set up the tooltips for the bounding-box-section
-       str = _("The lower left x-value of the bounding box");
+       str = _("The lower left x-value of the bounding box.");
        tooltips().init(bbox_->input_bb_x0, str);
-       str = _("The lower left y-value of the bounding box");
+       str = _("The lower left y-value of the bounding box.");
        tooltips().init(bbox_->input_bb_y0, str);
-       str = _("The upper right x-value of the bounding box");
+       str = _("The upper right x-value of the bounding box; "
+               "only this input field allows length + unit, e.g. 5cm "
+               "and sets the unit for the other input fields.");
        tooltips().init(bbox_->input_bb_x1, str);
-       str = _("The upper right y-value of the bounding box");
+       str = _("The upper right y-value of the bounding box.");
        tooltips().init(bbox_->input_bb_y1, str);
-       str = _("Select unit for the bounding box values");
+       str = _("Select unit for the bounding box values.");
        tooltips().init(bbox_->choice_bb_units, str);
 
-       str = _("Read the image coordinates new from file. If it's an (e)ps-file "
-               "then the bounding box is read otherwise the imagesize in pixels. "
-               "The default unit is \"bp\", the PostScript's b(ig) p(oint).");
+       str = _("Read the image coordinates new from file. For (e)ps-file "
+               "the bounding box is read, otherwise the imagesize in pixels. "
+               "Default unit is \"bp\", the PostScript's b(ig) p(oint).");
        tooltips().init(bbox_->button_getBB, str);
 
-       str = _("Enable this checkbox when the image should be clipped to the "
-               "bounding box values.");
+       str = _("Clip image to the bounding box values.");
        tooltips().init(bbox_->check_clip, str);
 
        // the extra section
        extra_.reset(build_graphics_extra(this));
 
-       fl_set_input_return (extra_->input_rotate_angle, FL_RETURN_CHANGED);
-       fl_set_input_return (extra_->input_subcaption, FL_RETURN_CHANGED);
-       fl_set_input_return (extra_->input_special, FL_RETURN_CHANGED);
-
-       fl_set_input_filter(extra_->input_rotate_angle, fl_float_filter);
+       // disable for read-only documents
+       bcview().addReadOnly(extra_->input_rotate_angle);
+       bcview().addReadOnly(extra_->choice_origin);
+       bcview().addReadOnly(extra_->check_subcaption);
+       bcview().addReadOnly(extra_->input_special);
 
+       // trigger an input event for cut&paste with middle mouse button.
        setPrehandler(extra_->input_rotate_angle);
        setPrehandler(extra_->input_subcaption);
        setPrehandler(extra_->input_special);
 
-       bc().addReadOnly(extra_->check_subcaption);
+       fl_set_input_return(extra_->input_rotate_angle, FL_RETURN_CHANGED);
+       fl_set_input_return(extra_->input_subcaption, FL_RETURN_CHANGED);
+       fl_set_input_return(extra_->input_special, FL_RETURN_CHANGED);
+
+       fl_set_input_filter(extra_->input_rotate_angle, fl_float_filter);
 
        using namespace frnt;
        vector<RotationOriginPair> origindata = getRotationOriginData();
@@ -212,38 +244,46 @@ void FormGraphics::build()
        // Store the identifiers for later
        origins_ = getSecond(origindata);
 
-       string const choice = " " + getStringFromVector(getFirst(origindata), " | ") + " ";
+       string const choice = getStringFromVector(getFirst(origindata), "|");
        fl_addto_choice(extra_->choice_origin, choice.c_str());
 
        // set up the tooltips for the extra section
        str = _("Insert the rotation angle in degrees. "
-               "Positive value rotates anti-clockwise, negative value clockwise");
+               "Positive value rotates anti-clockwise, "
+               "negative value clockwise.");
        tooltips().init(extra_->input_rotate_angle, str);
-       str = _("Insert the point of origin for rotation ");
+       str = _("Insert the point of origin for rotation.");
        tooltips().init(extra_->choice_origin, str);
        str = _("Enables use of subfigure with its own caption.");
        tooltips().init(extra_->check_subcaption, str);
-       str = _("Insert the optional subfigure caption");
+       str = _("Insert the optional subfigure caption.");
        tooltips().init(extra_->input_subcaption, str);
-       str = _("Add any additional latex option, which is defined in the "
-                "graphicx-package and not mentioned in the gui's tabfolders.");
+       str = _("Add any additional LaTeX option, which is defined in the "
+               "graphicx-package and not mentioned in the gui's tabfolders.");
        tooltips().init(extra_->input_special, str);
 
-       // add the different tabfolders
-       fl_addto_tabfolder(dialog_->tabfolder, _("File"), file_->form);
-       fl_addto_tabfolder(dialog_->tabfolder, _("Bounding Box"), bbox_->form);
-       fl_addto_tabfolder(dialog_->tabfolder, _("Extra"), extra_->form);
+       // Enable the tabfolder to be rescaled correctly.
+       if (scalableTabfolders)
+               fl_set_tabfolder_autofit(dialog_->tabfolder, FL_FIT);
+
+       // Stack tabs
+       fl_addto_tabfolder(dialog_->tabfolder, _("File").c_str(),
+                          file_->form);
+       fl_addto_tabfolder(dialog_->tabfolder, _("Bounding Box").c_str(),
+                          bbox_->form);
+       fl_addto_tabfolder(dialog_->tabfolder, _("Extra").c_str(),
+                          extra_->form);
 
        // set the right default unit
        switch (lyxrc.default_papersize) {
-       case BufferParams::PAPER_DEFAULT: break;
-       case BufferParams::PAPER_USLETTER:
-       case BufferParams::PAPER_LEGALPAPER:
-       case BufferParams::PAPER_EXECUTIVEPAPER: defaultUnit = "in"; break;
-       case BufferParams::PAPER_A3PAPER:
-       case BufferParams::PAPER_A4PAPER:
-       case BufferParams::PAPER_A5PAPER:
-       case BufferParams::PAPER_B5PAPER: defaultUnit = "cm"; break;
+       case PAPER_DEFAULT: break;
+       case PAPER_USLETTER:
+       case PAPER_LEGALPAPER:
+       case PAPER_EXECUTIVEPAPER: defaultUnit = "in"; break;
+       case PAPER_A3PAPER:
+       case PAPER_A4PAPER:
+       case PAPER_A5PAPER:
+       case PAPER_B5PAPER: defaultUnit = "cm"; break;
        }
 }
 
@@ -254,73 +294,111 @@ void FormGraphics::apply()
        InsetGraphicsParams & igp = controller().params();
 
        // the file section
-       igp.filename = getString(file_->input_filename);
+       igp.filename.set(getString(file_->input_filename),
+                        kernel().bufferFilepath());
 
        igp.lyxscale = strToInt(getString(file_->input_lyxscale));
        if (igp.lyxscale == 0) {
                igp.lyxscale = 100;
        }
-       
+
        switch (fl_get_choice(file_->choice_display)) {
-               case 5: igp.display = grfx::NoDisplay; break;
-               case 4: igp.display = grfx::ColorDisplay; break;
-               case 3: igp.display = grfx::GrayscaleDisplay; break;
-               case 2: igp.display = grfx::MonochromeDisplay; break;
-               case 1:
-               default: igp.display = grfx::DefaultDisplay;
+       case 5:
+               igp.display = lyx::graphics::NoDisplay;
+               break;
+       case 4:
+               igp.display = lyx::graphics::ColorDisplay;
+               break;
+       case 3:
+               igp.display = lyx::graphics::GrayscaleDisplay;
+               break;
+       case 2:
+               igp.display = lyx::graphics::MonochromeDisplay;
+               break;
+       case 1:
+               igp.display = lyx::graphics::DefaultDisplay;
        }
 
        // first item in choice_width means scaling
        if (fl_get_choice(file_->choice_width) == 1) {
-               igp.scale = strToInt(getString(file_->input_width));
-               if (igp.scale == 0) {
-                       igp.scale = 100;
+               igp.scale = strToDbl(getString(file_->input_width));
+               if (float_equal(igp.scale, 0.0, 0.05)) {
+                       igp.scale = 100.0;
                }
                igp.width = LyXLength();
        } else {
-               igp.scale = 0;
-               igp.width = getLyXLengthFromWidgets(file_->input_width,
-                                                   file_->choice_width);
+               igp.scale = 0.0;
+               igp.width = LyXLength(getLengthFromWidgets(file_->input_width,
+                                                          file_->choice_width));
        }
-       igp.height = getLyXLengthFromWidgets(file_->input_height,
-                                            file_->choice_height);
+       igp.height = LyXLength(getLengthFromWidgets(file_->input_height,
+                                                   file_->choice_height));
        igp.keepAspectRatio = fl_get_button(file_->check_aspectratio);
 
        igp.draft = fl_get_button(file_->check_draft);
        igp.noUnzip = fl_get_button(file_->check_nounzip);
 
        // the bb section
-       if (!controller().bbChanged) { // different to the original one?
-               igp.bb = string();     // don't write anything
+       if (!controller().bbChanged) {
+               // don't write anything
+               igp.bb.erase();
        } else {
+               // allow length + unit input only for x1 input field
+               string x1_str = "0";
+               if (!getString(bbox_->input_bb_x1).empty()) {
+                       x1_str = getLengthFromWidgets(bbox_->input_bb_x1,
+                                                     bbox_->choice_bb_units);
+                       LyXLength x1 = LyXLength(x1_str);
+                       x1_str = x1.asString();
+
+                       string unit;
+                       switch (x1.unit()) {
+                       case LyXLength::IN:
+                               unit = "in";
+                               break;
+                       case LyXLength::MM:
+                               unit = "mm";
+                               break;
+                       case LyXLength::CM:
+                               unit = "cm";
+                               break;
+                       case LyXLength::BP:
+                       default:
+                               unit = "bp";
+                       }
+                       fl_set_choice_text(bbox_->choice_bb_units, unit.c_str());
+               }
+
                string bb;
                if (getString(bbox_->input_bb_x0).empty())
-                       bb = "0 ";
+                       bb = "0";
                else
                        bb = getLengthFromWidgets(bbox_->input_bb_x0,
-                                                 bbox_->choice_bb_units)+" ";
+                                                 bbox_->choice_bb_units);
+
+               bb += ' ';
+
                if (getString(bbox_->input_bb_y0).empty())
-                       bb += "0 ";
-               else
-                       bb += (getLengthFromWidgets(bbox_->input_bb_y0,
-                                                   bbox_->choice_bb_units)+" ");
-               if (getString(bbox_->input_bb_x1).empty())
-                       bb += "0 ";
+                       bb += '0';
                else
-                       bb += (getLengthFromWidgets(bbox_->input_bb_x1,
-                                                   bbox_->choice_bb_units)+" ");
+                       bb += getLengthFromWidgets(bbox_->input_bb_y0,
+                                                 bbox_->choice_bb_units);
+
+               bb += ' ' + x1_str + ' ';
+
                if (getString(bbox_->input_bb_y1).empty())
-                       bb += "0 ";
+                       bb += '0';
                else
-                       bb += (getLengthFromWidgets(bbox_->input_bb_y1,
-                                                   bbox_->choice_bb_units)+" ");
+                       bb += getLengthFromWidgets(bbox_->input_bb_y1,
+                                                  bbox_->choice_bb_units);
+
                igp.bb = bb;
        }
        igp.clip = fl_get_button(bbox_->check_clip);
 
        // the extra section
        igp.rotateAngle = strToDbl(getString(extra_->input_rotate_angle));
-       
+
        // map angle into -360 (clock-wise) to +360 (counter clock-wise)
        while (igp.rotateAngle <= -360.0) {
                igp.rotateAngle += 360.0;
@@ -331,7 +409,11 @@ void FormGraphics::apply()
        fl_set_input(extra_->input_rotate_angle, tostr(igp.rotateAngle).c_str());
 
        int const origin_pos = fl_get_choice(extra_->choice_origin);
-       igp.rotateOrigin = origins_[origin_pos-1];
+       if (origin_pos == 0) {
+               igp.rotateOrigin.erase();
+       } else {
+               igp.rotateOrigin = origins_[origin_pos - 1];
+       }
 
        igp.subcaption = fl_get_button(extra_->check_subcaption);
        igp.subcaptionText = getString(extra_->input_subcaption);
@@ -345,44 +427,56 @@ void FormGraphics::update() {
        InsetGraphicsParams & igp = controller().params();
 
        // the file section
-       fl_set_input(file_->input_filename, igp.filename.c_str());
+       string const name =
+               igp.filename.outputFilename(kernel().bufferFilepath());
+       fl_set_input(file_->input_filename, name.c_str());
        fl_set_input(file_->input_lyxscale, tostr(igp.lyxscale).c_str());
 
        switch (igp.display) {
-               case grfx::NoDisplay:           fl_set_choice(file_->choice_display, 5); break;
-               case grfx::ColorDisplay:        fl_set_choice(file_->choice_display, 4); break;
-               case grfx::GrayscaleDisplay:    fl_set_choice(file_->choice_display, 3); break;
-               case grfx::MonochromeDisplay:   fl_set_choice(file_->choice_display, 2); break;
-               case grfx::DefaultDisplay:
-               default:                        fl_set_choice(file_->choice_display, 1);
+       case lyx::graphics::NoDisplay:
+               fl_set_choice(file_->choice_display, 5);
+               break;
+       case lyx::graphics::ColorDisplay:
+               fl_set_choice(file_->choice_display, 4);
+               break;
+       case lyx::graphics::GrayscaleDisplay:
+               fl_set_choice(file_->choice_display, 3);
+               break;
+       case lyx::graphics::MonochromeDisplay:
+               fl_set_choice(file_->choice_display, 2);
+               break;
+       case lyx::graphics::DefaultDisplay:
+               fl_set_choice(file_->choice_display, 1);
        }
 
-       // disable height input in case of scaling
-       setEnabled(file_->input_height, !igp.scale);
-       setEnabled(file_->choice_height, !igp.scale);
-
        // set width input fields according to scaling or width/height input
-       if (igp.scale) {
-               fl_set_input_filter(file_->input_width, fl_unsigned_int_filter);
+       if (!float_equal(igp.scale, 0.0, 0.05)) {
+               fl_set_input_filter(file_->input_width, fl_unsigned_float_filter);
                fl_set_input_maxchars(file_->input_width, 0);
                fl_set_input(file_->input_width, tostr(igp.scale).c_str());
                fl_set_choice(file_->choice_width, 1);
        } else {
                fl_set_input_filter(file_->input_width, NULL);
                fl_set_input_maxchars(file_->input_width, SIZE_MAXDIGITS);
-               updateWidgetsFromLength(file_->input_width,
-                                       file_->choice_width, igp.width, defaultUnit);
+               updateWidgetsFromLength(file_->input_width, file_->choice_width,
+                                       igp.width, defaultUnit);
        }
 
-       updateWidgetsFromLength(file_->input_height,
-                               file_->choice_height, igp.height, defaultUnit);
-       
+       updateWidgetsFromLength(file_->input_height, file_->choice_height,
+                               igp.height, defaultUnit);
+
+       // disable height input in case of scaling
+       bool const disable_height = !float_equal(igp.scale, 0.0, 0.05);
+       setEnabled(file_->input_height, !disable_height);
+       setEnabled(file_->choice_height, !disable_height);
+
        fl_set_button(file_->check_aspectratio, igp.keepAspectRatio);
        fl_set_button(file_->check_draft, igp.draft);
        fl_set_button(file_->check_nounzip, igp.noUnzip);
 
-       // disable aspectratio button in case of scaling or one of width/height is empty
-       bool const disable_aspectRatio = igp.scale ||
+       // disable aspectratio button in case of scaling or one of width/height
+       // is empty
+       bool const disable_aspectRatio = disable_height ||
                                getString(file_->input_width).empty() ||
                                getString(file_->input_height).empty();
        setEnabled(file_->check_aspectratio, !disable_aspectRatio);
@@ -390,16 +484,20 @@ void FormGraphics::update() {
        // the bb section
        // set the bounding box values, if exists. First we need the whole
        // path, because the controller knows nothing about the doc-dir
-       updateBB(igp.filename, igp.bb);
+       updateBB(igp.filename.absFilename(), igp.bb);
        fl_set_button(bbox_->check_clip, igp.clip);
 
-
        // the extra section
        fl_set_input(extra_->input_rotate_angle,
                     tostr(igp.rotateAngle).c_str());
 
-       int const origin_pos = findPos(origins_, igp.rotateOrigin);
-       fl_set_choice(extra_->choice_origin, 1 + origin_pos);
+       int origin_pos;
+       if (igp.rotateOrigin.empty()) {
+               origin_pos = 1;
+       } else {
+               origin_pos = 1 + findPos(origins_, igp.rotateOrigin);
+       }
+       fl_set_choice(extra_->choice_origin, origin_pos);
 
        fl_set_button(extra_->check_subcaption, igp.subcaption);
        fl_set_input(extra_->input_subcaption, igp.subcaptionText.c_str());
@@ -421,7 +519,8 @@ void FormGraphics::updateBB(string const & filename, string const & bb_inset)
        // path, because the controller knows nothing about the doc-dir
        controller().bbChanged = false;
        if (bb_inset.empty()) {
-               lyxerr[Debug::GRAPHICS] << "FormGraphics::updateBB() [no BoundingBox]" << endl;
+               lyxerr[Debug::GRAPHICS]
+                       << "FormGraphics::updateBB() [no BoundingBox]" << endl;
                string const bb = controller().readBB(filename);
                if (!bb.empty()) {
                        // get the values from the file
@@ -447,9 +546,9 @@ void FormGraphics::updateBB(string const & filename, string const & bb_inset)
 
        } else {
                // get the values from the inset
-               lyxerr[Debug::GRAPHICS] << "FormGraphics::updateBB(): igp has BoundingBox"
-                                       << " ["<< bb_inset << "]"
-                                       << endl;
+               lyxerr[Debug::GRAPHICS]
+                       << "FormGraphics::updateBB(): igp has BoundingBox"
+                       << " ["<< bb_inset << "]" << endl;
                controller().bbChanged = true;
 
                LyXLength anyLength;
@@ -469,26 +568,15 @@ void FormGraphics::updateBB(string const & filename, string const & bb_inset)
 }
 
 
-namespace {
-
-bool isValid(FL_OBJECT * ob)
-{
-       string const input = getString(ob);
-       return input.empty() || isValidLength(input) || isStrDbl(input);
-}
-
-} // namespace anon
-
-
-
 ButtonPolicy::SMInput FormGraphics::input(FL_OBJECT * ob, long)
 {
        // the file section
        if (ob == file_->button_browse) {
                // Get the filename from the dialog
                string const in_name = getString(file_->input_filename);
-               string const out_name = controller().Browse(in_name);
-               lyxerr[Debug::GRAPHICS] << "[FormGraphics]out_name: " << out_name << endl;
+               string const out_name = controller().browse(in_name);
+               lyxerr[Debug::GRAPHICS]
+                       << "[FormGraphics]out_name: " << out_name << endl;
                if (out_name != in_name && !out_name.empty()) {
                        fl_set_input(file_->input_filename, out_name.c_str());
                }
@@ -497,7 +585,8 @@ ButtonPolicy::SMInput FormGraphics::input(FL_OBJECT * ob, long)
                        updateBB(out_name, string());
                }
        } else if (ob == file_->input_width || ob == file_->input_height) {
-               // disable aspectratio button in case of scaling or one of width/height is empty
+               // disable aspectratio button in case of scaling or one of
+               // width/height is empty
                bool const disable = fl_get_choice(file_->choice_width) == 1 ||
                                    getString(file_->input_width).empty() ||
                                    getString(file_->input_height).empty();
@@ -507,18 +596,20 @@ ButtonPolicy::SMInput FormGraphics::input(FL_OBJECT * ob, long)
                bool const scaling = fl_get_choice(file_->choice_width) == 1;
                setEnabled(file_->input_height, !scaling);
                setEnabled(file_->choice_height, !scaling);
-               
+
                // allow only integer intput for scaling; float otherwise
                if (scaling) {
-                       fl_set_input_filter(file_->input_width, fl_unsigned_int_filter);
+                       fl_set_input_filter(file_->input_width, fl_unsigned_float_filter);
                        fl_set_input_maxchars(file_->input_width, 0);
                } else {
                        fl_set_input_filter(file_->input_width, NULL);
                        fl_set_input_maxchars(file_->input_width, SIZE_MAXDIGITS);
                }
 
-               // disable aspectratio button in case of scaling or height input is empty
-               bool const disable_aspectratio = scaling || getString(file_->input_height).empty();
+               // disable aspectratio button in case of scaling or height
+               // input is empty
+               bool const disable_aspectratio =
+                       scaling || getString(file_->input_height).empty();
                setEnabled(file_->check_aspectratio, !disable_aspectratio);
        // the bb section
        } else if (!controller().bbChanged &&
@@ -552,15 +643,5 @@ ButtonPolicy::SMInput FormGraphics::input(FL_OBJECT * ob, long)
 
        }
 
-       // check if the input is valid
-       bool const invalid = !isValid(file_->input_width) || !isValid(file_->input_height);
-
-       // deactivate OK / Apply buttons and spit out warnings if invalid
-       if (invalid) {
-               postWarning(_("Invalid Length in Output size!"));
-               return ButtonPolicy::SMI_INVALID;
-       } else {
-               clearMessage();
-               return ButtonPolicy::SMI_VALID;
-       }
+       return ButtonPolicy::SMI_VALID;
 }