mirror of https://github.com/GNOME/gimp.git
libgimp: re-promote GimpResolutionEntry in its own file and improve its API.
The code comes from plug-ins/common/file-pdf-load.c and apparently it used to be in libgimpwidgets (very long ago). I'm copying it to its own file and massively improve the code (depending on property binding which makes the behavior much more robust). Still I left it as private because I don't want to say the API is finale without having tested it a bit more. But eventually we should make it public for plug-ins to use it directly too. When this happens, it should get back to libgimpwidgets.
This commit is contained in:
Jehan
parent
768f871bc7
commit
3a3f67ef95
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@ -0,0 +1,742 @@
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/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimpresolutionentry.c
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* Copyright (C) 2024 Jehan
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libgimpwidgets/gimpwidgets.h"
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#include "gimp.h"
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#include "gimpui.h"
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#include "gimpresolutionentry-private.h"
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#include "libgimp-intl.h"
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enum
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{
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PROP_0,
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PROP_WIDTH,
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PROP_HEIGHT,
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PROP_PIXEL_DENSITY,
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PROP_UNIT,
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PROP_KEEP_RATIO,
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N_PROPS
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};
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struct _GimpResolutionEntry
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{
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GtkGrid parent_instance;
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gint width;
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gint height;
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gdouble ppi;
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GimpUnit unit;
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gboolean keep_ratio;
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GtkWidget *phy_width_label;
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GtkWidget *phy_height_label;
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GtkWidget *chainbutton;
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};
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G_DEFINE_FINAL_TYPE (GimpResolutionEntry, gimp_resolution_entry, GTK_TYPE_GRID)
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#define parent_class gimp_resolution_entry_parent_class
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static void gimp_resolution_entry_class_init (GimpResolutionEntryClass *class);
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static void gimp_resolution_entry_init (GimpResolutionEntry *gre);
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static void gimp_resolution_entry_constructed (GObject *object);
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static void gimp_resolution_entry_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gimp_resolution_entry_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static GtkWidget * gimp_resolution_entry_attach_label (GimpResolutionEntry *entry,
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const gchar *text,
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gint row,
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gint column,
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gfloat alignment);
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static void gimp_resolution_entry_format_label (GimpResolutionEntry *entry,
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GtkWidget *label,
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gdouble size);
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static void gimp_resolution_entry_update_labels (GimpResolutionEntry *entry,
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GParamSpec *param_spec,
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GtkWidget *label);
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static gboolean gimp_resolution_entry_ppi_to_unit (GBinding *binding,
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const GValue *from_value,
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GValue *to_value,
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GimpResolutionEntry *entry);
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static gboolean gimp_resolution_entry_unit_to_ppi (GBinding *binding,
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const GValue *from_value,
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GValue *to_value,
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GimpResolutionEntry *entry);
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static GParamSpec *props[N_PROPS] = { NULL, };
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static void
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gimp_resolution_entry_class_init (GimpResolutionEntryClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->constructed = gimp_resolution_entry_constructed;
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object_class->set_property = gimp_resolution_entry_set_property;
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object_class->get_property = gimp_resolution_entry_get_property;
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props[PROP_WIDTH] = g_param_spec_int ("width",
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"Width in pixel",
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NULL,
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0, GIMP_MAX_IMAGE_SIZE, 0,
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GIMP_PARAM_READWRITE |
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G_PARAM_EXPLICIT_NOTIFY |
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G_PARAM_CONSTRUCT);
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props[PROP_HEIGHT] = g_param_spec_int ("height",
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"Height in pixel",
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NULL,
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0, GIMP_MAX_IMAGE_SIZE, 0,
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GIMP_PARAM_READWRITE |
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G_PARAM_EXPLICIT_NOTIFY |
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G_PARAM_CONSTRUCT);
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props[PROP_PIXEL_DENSITY] = g_param_spec_double ("pixel-density",
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"Pixel density in pixel per inch",
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NULL,
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GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION, 300.0,
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GIMP_PARAM_READWRITE |
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G_PARAM_EXPLICIT_NOTIFY |
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G_PARAM_CONSTRUCT);
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props[PROP_UNIT] = gimp_param_spec_unit ("unit",
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"Physical unit for the pixel density",
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"This unit is used to select the pixel density "
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"and show dimensions in physical unit",
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FALSE, FALSE,
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GIMP_UNIT_INCH,
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GIMP_PARAM_READWRITE |
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G_PARAM_EXPLICIT_NOTIFY |
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G_PARAM_CONSTRUCT);
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props[PROP_KEEP_RATIO] = g_param_spec_boolean ("keep-ratio",
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_("_Keep aspect ratio"),
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_("Force dimensions with aspect ratio"),
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TRUE,
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GIMP_PARAM_READWRITE |
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G_PARAM_EXPLICIT_NOTIFY |
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G_PARAM_CONSTRUCT);
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g_object_class_install_properties (object_class, N_PROPS, props);
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}
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static void
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gimp_resolution_entry_init (GimpResolutionEntry *entry)
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{
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entry->width = 0;
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entry->height = 0;
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entry->ppi = 300.0;
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entry->unit = GIMP_UNIT_INCH;
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entry->keep_ratio = TRUE;
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gtk_grid_set_row_spacing (GTK_GRID (entry), 2);
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gtk_grid_set_column_spacing (GTK_GRID (entry), 4);
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}
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static void
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gimp_resolution_entry_constructed (GObject *object)
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{
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GimpResolutionEntry *entry = GIMP_RESOLUTION_ENTRY (object);
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GtkTreeModel *model;
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GtkWidget *label;
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GtkWidget *widget;
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GBinding *binding;
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GtkAdjustment *adj;
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widget = gimp_prop_spin_button_new (object, "pixel-density", 1.0, 10.0, 2);
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adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (widget));
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binding = g_object_get_data (G_OBJECT (adj), "gimp-prop-adjustment-binding");
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g_binding_unbind (binding);
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binding = g_object_bind_property_full (object, "pixel-density",
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widget, "value",
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G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE,
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(GBindingTransformFunc) gimp_resolution_entry_ppi_to_unit,
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(GBindingTransformFunc) gimp_resolution_entry_unit_to_ppi,
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entry, NULL);
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g_object_set_data (G_OBJECT (adj), "gimp-prop-adjustment-binding", binding);
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gtk_grid_attach (GTK_GRID (entry), widget, 1, 3, 1, 1);
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gtk_widget_show (widget);
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widget = gimp_prop_unit_combo_box_new (object, "unit");
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model = gtk_combo_box_get_model (GTK_COMBO_BOX (widget));
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g_object_set (model,
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"short-format", _("pixels/%a"),
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"long-format", _("pixels/%a"),
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NULL);
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gtk_grid_attach (GTK_GRID (entry), widget, 3, 3, 1, 1);
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gtk_widget_show (widget);
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widget = gimp_prop_spin_button_new (object, "width", 1.0, 10.0, 0);
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gtk_grid_attach (GTK_GRID (entry), widget, 1, 1, 1, 1);
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gtk_widget_show (widget);
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label = g_object_new (GTK_TYPE_LABEL,
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"xalign", 0.0,
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"yalign", 0.5,
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NULL);
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gimp_label_set_attributes (GTK_LABEL (label),
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PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
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-1);
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gimp_resolution_entry_format_label (entry, label,
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entry->width / entry->ppi);
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entry->phy_width_label = label;
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gtk_grid_attach (GTK_GRID (entry), entry->phy_width_label, 3, 1, 1, 1);
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gtk_widget_show (entry->phy_width_label);
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widget = gimp_prop_spin_button_new (object, "height", 1.0, 10.0, 0);
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gtk_grid_attach (GTK_GRID (entry), widget, 1, 2, 1, 1);
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gtk_widget_show (widget);
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label = g_object_new (GTK_TYPE_LABEL,
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"xalign", 0.0,
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"yalign", 0.5,
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NULL);
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gimp_label_set_attributes (GTK_LABEL (label),
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PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
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-1);
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gimp_resolution_entry_format_label (entry, label,
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entry->height / entry->ppi);
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entry->phy_height_label = label;
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gtk_grid_attach (GTK_GRID (entry), entry->phy_height_label, 3, 2, 1, 1);
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gtk_widget_show (entry->phy_height_label);
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g_signal_connect (object, "notify::width",
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G_CALLBACK (gimp_resolution_entry_update_labels),
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entry->phy_width_label);
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g_signal_connect (object, "notify::height",
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G_CALLBACK (gimp_resolution_entry_update_labels),
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entry->phy_height_label);
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g_signal_connect (object, "notify::pixel-density",
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G_CALLBACK (gimp_resolution_entry_update_labels),
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NULL);
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}
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static void
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gimp_resolution_entry_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GimpResolutionEntry *entry = GIMP_RESOLUTION_ENTRY (object);
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switch (property_id)
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{
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case PROP_WIDTH:
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gimp_resolution_entry_set_width (entry, g_value_get_int (value));
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break;
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case PROP_HEIGHT:
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gimp_resolution_entry_set_height (entry, g_value_get_int (value));
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break;
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case PROP_PIXEL_DENSITY:
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gimp_resolution_entry_set_pixel_density (entry, g_value_get_double (value));
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break;
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case PROP_UNIT:
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gimp_resolution_entry_set_unit (entry, g_value_get_int (value));
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break;
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case PROP_KEEP_RATIO:
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gimp_resolution_entry_set_keep_ratio (entry, g_value_get_boolean (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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gimp_resolution_entry_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GimpResolutionEntry *entry = GIMP_RESOLUTION_ENTRY (object);
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switch (property_id)
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{
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case PROP_WIDTH:
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g_value_set_int (value, entry->width);
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break;
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case PROP_HEIGHT:
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g_value_set_int (value, entry->height);
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break;
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case PROP_PIXEL_DENSITY:
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g_value_set_double (value, entry->ppi);
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break;
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case PROP_UNIT:
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g_value_set_int (value, entry->unit);
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break;
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case PROP_KEEP_RATIO:
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g_value_set_boolean (value, entry->keep_ratio);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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GtkWidget *
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gimp_prop_resolution_entry_new (GObject *config,
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const gchar *width_prop,
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const gchar *height_prop,
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const gchar *ppi_prop,
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const gchar *unit_prop)
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{
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GtkWidget *widget;
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GParamSpec *w_pspec;
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GParamSpec *h_pspec;
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GParamSpec *d_pspec;
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GParamSpec *u_pspec;
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gint width = 0;
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gint height = 0;
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gdouble ppi = 300.0;
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GimpUnit unit = GIMP_UNIT_INCH;
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g_return_val_if_fail (G_IS_OBJECT (config), NULL);
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g_return_val_if_fail (width_prop != NULL, NULL);
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g_return_val_if_fail (height_prop != NULL, NULL);
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g_return_val_if_fail (ppi_prop != NULL, NULL);
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g_return_val_if_fail (unit_prop != NULL, NULL);
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w_pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (config), width_prop);
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h_pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (config), height_prop);
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d_pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (config), ppi_prop);
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u_pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (config), unit_prop);
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g_return_val_if_fail (w_pspec != NULL, NULL);
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g_return_val_if_fail (h_pspec != NULL, NULL);
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g_return_val_if_fail (d_pspec != NULL, NULL);
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g_return_val_if_fail (u_pspec != NULL, NULL);
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g_object_get (config,
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width_prop, &width,
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height_prop, &height,
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ppi_prop, &ppi,
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unit_prop, &unit,
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NULL);
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widget = gimp_resolution_entry_new (g_param_spec_get_nick (w_pspec), width,
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g_param_spec_get_nick (h_pspec), height,
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g_param_spec_get_nick (d_pspec), ppi,
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unit);
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g_object_bind_property (config, width_prop,
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widget, "width",
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G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
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g_object_bind_property (config, height_prop,
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widget, "height",
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G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
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g_object_bind_property (config, ppi_prop,
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||||||
|
widget, "pixel-density",
|
||||||
|
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
|
||||||
|
g_object_bind_property (config, unit_prop,
|
||||||
|
widget, "unit",
|
||||||
|
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
|
||||||
|
|
||||||
|
return widget;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* gimp_resolution_entry_new:
|
||||||
|
* @width_label: Optional label for the width control.
|
||||||
|
* @width: Width of the item, specified in pixels.
|
||||||
|
* @height_label: Optional label for the height control.
|
||||||
|
* @height: Height of the item, specified in pixels.
|
||||||
|
* @res_label: Optional label for the resolution entry.
|
||||||
|
* @pixel_density: The initial resolution in pixel per inch.
|
||||||
|
* @display_unit: The display unit.
|
||||||
|
*
|
||||||
|
* Creates a new #GimpResolutionEntry widget.
|
||||||
|
*
|
||||||
|
* The #GimpResolutionEntry is derived from #GtkGrid and will have
|
||||||
|
* an empty border of one cell width on each side plus an empty column left
|
||||||
|
* of the #GimpUnitMenu to allow the caller to add labels or other widgets.
|
||||||
|
*
|
||||||
|
* A #GimpChainButton is displayed if independent is set to %TRUE.
|
||||||
|
*
|
||||||
|
* Returns: A pointer to the new #GimpResolutionEntry widget.
|
||||||
|
**/
|
||||||
|
GtkWidget *
|
||||||
|
gimp_resolution_entry_new (const gchar *width_label,
|
||||||
|
gint width,
|
||||||
|
const gchar *height_label,
|
||||||
|
gint height,
|
||||||
|
const gchar *res_label,
|
||||||
|
gdouble pixel_density,
|
||||||
|
GimpUnit display_unit)
|
||||||
|
{
|
||||||
|
GimpResolutionEntry *entry;
|
||||||
|
|
||||||
|
entry = g_object_new (GIMP_TYPE_RESOLUTION_ENTRY,
|
||||||
|
"width", width,
|
||||||
|
"height", height,
|
||||||
|
"pixel-density", pixel_density,
|
||||||
|
"unit", display_unit,
|
||||||
|
NULL);
|
||||||
|
|
||||||
|
if (width_label)
|
||||||
|
gimp_resolution_entry_attach_label (entry, width_label, 1, 0, 0.0);
|
||||||
|
|
||||||
|
if (height_label)
|
||||||
|
gimp_resolution_entry_attach_label (entry, height_label, 2, 0, 0.0);
|
||||||
|
|
||||||
|
if (res_label)
|
||||||
|
gimp_resolution_entry_attach_label (entry, res_label, 3, 0, 0.0);
|
||||||
|
|
||||||
|
return GTK_WIDGET (entry);
|
||||||
|
}
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
gimp_resolution_entry_idle_notify (GimpResolutionEntry *entry)
|
||||||
|
{
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_WIDTH]);
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_HEIGHT]);
|
||||||
|
|
||||||
|
return G_SOURCE_REMOVE;
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
gimp_resolution_entry_set_width (GimpResolutionEntry *entry,
|
||||||
|
gint width)
|
||||||
|
{
|
||||||
|
if (width == 0)
|
||||||
|
{
|
||||||
|
/* Do nothing, i.e. revert back to value it was. Yet notify after an idle
|
||||||
|
* source, otherwise the entry is not updated (the binding likely blocks
|
||||||
|
* notifications for this property to avoid infinite loops.
|
||||||
|
*/
|
||||||
|
g_idle_add ((GSourceFunc) gimp_resolution_entry_idle_notify, entry);
|
||||||
|
}
|
||||||
|
else if (entry->width != width)
|
||||||
|
{
|
||||||
|
gdouble inch_width = 0.0;
|
||||||
|
|
||||||
|
if (entry->width != 0 && entry->height != 0 && entry->ppi != 0.0)
|
||||||
|
inch_width = (gdouble) entry->width / entry->ppi;
|
||||||
|
|
||||||
|
g_object_freeze_notify (G_OBJECT (entry));
|
||||||
|
|
||||||
|
if (entry->keep_ratio && entry->width != 0)
|
||||||
|
{
|
||||||
|
gdouble ratio;
|
||||||
|
gint height;
|
||||||
|
|
||||||
|
ratio = (gdouble) entry->height / (gdouble) entry->width;
|
||||||
|
height = (gint) (width * ratio);
|
||||||
|
|
||||||
|
if (height != entry->height)
|
||||||
|
{
|
||||||
|
entry->height = height;
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_HEIGHT]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
entry->width = width;
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_WIDTH]);
|
||||||
|
|
||||||
|
if (inch_width != 0.0)
|
||||||
|
{
|
||||||
|
entry->ppi = (gdouble) entry->width / inch_width;
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_PIXEL_DENSITY]);
|
||||||
|
}
|
||||||
|
|
||||||
|
g_object_thaw_notify (G_OBJECT (entry));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
gimp_resolution_entry_set_height (GimpResolutionEntry *entry,
|
||||||
|
gint height)
|
||||||
|
{
|
||||||
|
if (height == 0)
|
||||||
|
{
|
||||||
|
/* Do nothing, i.e. revert back to value it was. Yet notify after an idle
|
||||||
|
* source, otherwise the entry is not updated (the binding likely blocks
|
||||||
|
* notifications for this property to avoid infinite loops.
|
||||||
|
*/
|
||||||
|
g_idle_add ((GSourceFunc) gimp_resolution_entry_idle_notify, entry);
|
||||||
|
}
|
||||||
|
else if (entry->height != height)
|
||||||
|
{
|
||||||
|
gdouble inch_height = 0.0;
|
||||||
|
|
||||||
|
if (entry->width != 0 && entry->height != 0 && entry->ppi != 0.0)
|
||||||
|
inch_height = (gdouble) entry->height / entry->ppi;
|
||||||
|
|
||||||
|
g_object_freeze_notify (G_OBJECT (entry));
|
||||||
|
|
||||||
|
if (entry->keep_ratio && entry->height != 0)
|
||||||
|
{
|
||||||
|
gdouble ratio;
|
||||||
|
gint width;
|
||||||
|
|
||||||
|
ratio = (gdouble) entry->width / (gdouble) entry->height;
|
||||||
|
width = (gint) (height * ratio);
|
||||||
|
|
||||||
|
if (width != entry->width)
|
||||||
|
{
|
||||||
|
entry->width = width;
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_WIDTH]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
entry->height = height;
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_HEIGHT]);
|
||||||
|
|
||||||
|
if (inch_height != 0.0)
|
||||||
|
{
|
||||||
|
entry->ppi = (gdouble) entry->height / inch_height;
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_PIXEL_DENSITY]);
|
||||||
|
}
|
||||||
|
|
||||||
|
g_object_thaw_notify (G_OBJECT (entry));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
gimp_resolution_entry_set_pixel_density (GimpResolutionEntry *entry,
|
||||||
|
gdouble ppi)
|
||||||
|
{
|
||||||
|
if (entry->ppi != ppi)
|
||||||
|
{
|
||||||
|
gdouble inch_width = entry->width / entry->ppi;
|
||||||
|
gdouble inch_height = entry->height / entry->ppi;
|
||||||
|
|
||||||
|
g_object_freeze_notify (G_OBJECT (entry));
|
||||||
|
entry->ppi = ppi;
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_PIXEL_DENSITY]);
|
||||||
|
|
||||||
|
/* This test is just to check if we are in construction. */
|
||||||
|
if (entry->phy_width_label)
|
||||||
|
{
|
||||||
|
entry->width = inch_width * ppi;
|
||||||
|
entry->height = inch_height * ppi;
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_WIDTH]);
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_HEIGHT]);
|
||||||
|
}
|
||||||
|
|
||||||
|
g_object_thaw_notify (G_OBJECT (entry));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
gimp_resolution_entry_set_unit (GimpResolutionEntry *entry,
|
||||||
|
GimpUnit unit)
|
||||||
|
{
|
||||||
|
g_return_if_fail (unit != GIMP_UNIT_PIXEL);
|
||||||
|
g_return_if_fail (unit != GIMP_UNIT_PERCENT);
|
||||||
|
|
||||||
|
if (entry->unit != unit)
|
||||||
|
{
|
||||||
|
entry->unit = unit;
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_UNIT]);
|
||||||
|
/* Even though the pixel density (in pixel per inch) has not in fact
|
||||||
|
* changed, we send a notification to force a refresh of the displayed
|
||||||
|
* pixel per other-unit value in the entry field.
|
||||||
|
*/
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_PIXEL_DENSITY]);
|
||||||
|
|
||||||
|
if (entry->phy_width_label)
|
||||||
|
gimp_resolution_entry_format_label (entry, entry->phy_width_label,
|
||||||
|
gimp_unit_get_factor (entry->unit) *
|
||||||
|
entry->width / entry->ppi);
|
||||||
|
if (entry->phy_height_label)
|
||||||
|
gimp_resolution_entry_format_label (entry, entry->phy_height_label,
|
||||||
|
gimp_unit_get_factor (entry->unit) *
|
||||||
|
entry->height / entry->ppi);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
gimp_resolution_entry_set_keep_ratio (GimpResolutionEntry *entry,
|
||||||
|
gboolean keep_ratio)
|
||||||
|
{
|
||||||
|
if (keep_ratio != entry->keep_ratio)
|
||||||
|
{
|
||||||
|
entry->keep_ratio = keep_ratio;
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (entry), props[PROP_KEEP_RATIO]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
gint
|
||||||
|
gimp_resolution_entry_get_width (GimpResolutionEntry *entry)
|
||||||
|
{
|
||||||
|
return entry->width;
|
||||||
|
}
|
||||||
|
|
||||||
|
gint
|
||||||
|
gimp_resolution_entry_get_height (GimpResolutionEntry *entry)
|
||||||
|
{
|
||||||
|
return entry->height;
|
||||||
|
}
|
||||||
|
|
||||||
|
gdouble
|
||||||
|
gimp_resolution_entry_get_density (GimpResolutionEntry *entry)
|
||||||
|
{
|
||||||
|
return entry->ppi;
|
||||||
|
}
|
||||||
|
|
||||||
|
GimpUnit
|
||||||
|
gimp_resolution_entry_get_unit (GimpResolutionEntry *entry)
|
||||||
|
{
|
||||||
|
return entry->unit;
|
||||||
|
}
|
||||||
|
|
||||||
|
gboolean
|
||||||
|
gimp_resolution_entry_get_keep_ratio (GimpResolutionEntry *entry)
|
||||||
|
{
|
||||||
|
return entry->keep_ratio;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/* Private functions. */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* gimp_resolution_entry_attach_label:
|
||||||
|
* @gre: The #GimpResolutionEntry you want to add a label to.
|
||||||
|
* @text: The text of the label.
|
||||||
|
* @row: The row where the label will be attached.
|
||||||
|
* @column: The column where the label will be attached.
|
||||||
|
* @alignment: The horizontal alignment of the label.
|
||||||
|
*
|
||||||
|
* Attaches a #GtkLabel to the #GimpResolutionEntry (which is a #GtkGrid).
|
||||||
|
*
|
||||||
|
* Returns: A pointer to the new #GtkLabel widget.
|
||||||
|
**/
|
||||||
|
static GtkWidget *
|
||||||
|
gimp_resolution_entry_attach_label (GimpResolutionEntry *gre,
|
||||||
|
const gchar *text,
|
||||||
|
gint row,
|
||||||
|
gint column,
|
||||||
|
gfloat alignment)
|
||||||
|
{
|
||||||
|
GtkWidget *label;
|
||||||
|
|
||||||
|
g_return_val_if_fail (GIMP_IS_RESOLUTION_ENTRY (gre), NULL);
|
||||||
|
g_return_val_if_fail (text != NULL, NULL);
|
||||||
|
|
||||||
|
label = gtk_label_new_with_mnemonic (text);
|
||||||
|
|
||||||
|
if (column == 0)
|
||||||
|
{
|
||||||
|
GList *children;
|
||||||
|
GList *list;
|
||||||
|
|
||||||
|
children = gtk_container_get_children (GTK_CONTAINER (gre));
|
||||||
|
|
||||||
|
for (list = children; list; list = g_list_next (list))
|
||||||
|
{
|
||||||
|
GtkWidget *child = list->data;
|
||||||
|
gint left_attach;
|
||||||
|
gint top_attach;
|
||||||
|
|
||||||
|
gtk_container_child_get (GTK_CONTAINER (gre), child,
|
||||||
|
"left-attach", &left_attach,
|
||||||
|
"top-attach", &top_attach,
|
||||||
|
NULL);
|
||||||
|
|
||||||
|
if (left_attach == 1 && top_attach == row)
|
||||||
|
{
|
||||||
|
gtk_label_set_mnemonic_widget (GTK_LABEL (label), child);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
g_list_free (children);
|
||||||
|
}
|
||||||
|
|
||||||
|
gtk_label_set_xalign (GTK_LABEL (label), alignment);
|
||||||
|
|
||||||
|
gtk_grid_attach (GTK_GRID (gre), label, column, row, 1, 1);
|
||||||
|
gtk_widget_show (label);
|
||||||
|
|
||||||
|
return label;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gimp_resolution_entry_format_label (GimpResolutionEntry *entry,
|
||||||
|
GtkWidget *label,
|
||||||
|
gdouble size_inch)
|
||||||
|
{
|
||||||
|
gchar *format = g_strdup_printf ("%%.%df %%s",
|
||||||
|
gimp_unit_get_digits (entry->unit));
|
||||||
|
gchar *text = g_strdup_printf (format,
|
||||||
|
size_inch * gimp_unit_get_factor (entry->unit),
|
||||||
|
gimp_unit_get_plural (entry->unit));
|
||||||
|
g_free (format);
|
||||||
|
|
||||||
|
gtk_label_set_text (GTK_LABEL (label), text);
|
||||||
|
g_free (text);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gimp_resolution_entry_update_labels (GimpResolutionEntry *entry,
|
||||||
|
GParamSpec *param_spec,
|
||||||
|
GtkWidget *label)
|
||||||
|
{
|
||||||
|
if ((label == NULL && entry->phy_width_label != NULL) ||
|
||||||
|
(label != NULL && label == entry->phy_width_label))
|
||||||
|
gimp_resolution_entry_format_label (entry, entry->phy_width_label,
|
||||||
|
entry->width / entry->ppi);
|
||||||
|
|
||||||
|
if ((label == NULL && entry->phy_height_label != NULL) ||
|
||||||
|
(label != NULL && label == entry->phy_height_label))
|
||||||
|
gimp_resolution_entry_format_label (entry, entry->phy_height_label,
|
||||||
|
entry->height / entry->ppi);
|
||||||
|
}
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
gimp_resolution_entry_ppi_to_unit (GBinding *binding,
|
||||||
|
const GValue *from_value,
|
||||||
|
GValue *to_value,
|
||||||
|
GimpResolutionEntry *entry)
|
||||||
|
{
|
||||||
|
gdouble ppi = g_value_get_double (from_value);
|
||||||
|
|
||||||
|
g_value_set_double (to_value, ppi / gimp_unit_get_factor (entry->unit));
|
||||||
|
|
||||||
|
return TRUE;
|
||||||
|
}
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
gimp_resolution_entry_unit_to_ppi (GBinding *binding,
|
||||||
|
const GValue *from_value,
|
||||||
|
GValue *to_value,
|
||||||
|
GimpResolutionEntry *entry)
|
||||||
|
{
|
||||||
|
gdouble ppu = g_value_get_double (from_value);
|
||||||
|
|
||||||
|
g_value_set_double (to_value, ppu * gimp_unit_get_factor (entry->unit));
|
||||||
|
|
||||||
|
return TRUE;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,80 @@
|
||||||
|
/* GIMP - The GNU Image Manipulation Program
|
||||||
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
||||||
|
*
|
||||||
|
* gimpresolutionentry.h
|
||||||
|
* Copyright (C) 2024 Jehan
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#if !defined (__GIMP_UI_H_INSIDE__) && !defined (GIMP_COMPILATION)
|
||||||
|
#error "Only <libgimp/gimpui.h> can be included directly."
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifndef __GIMP_RESOLUTION_ENTRY__
|
||||||
|
#define __GIMP_RESOLUTION_ENTRY__
|
||||||
|
|
||||||
|
G_BEGIN_DECLS
|
||||||
|
|
||||||
|
/* For information look into the C source or the html documentation */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This widget was initially part of libgimpwidgets. Then it got removed and
|
||||||
|
* moved as private code to file-pdf-load plug-in.
|
||||||
|
*
|
||||||
|
* I'm adding it back for GIMP 3 release as its own code but not making it
|
||||||
|
* public (only to be used by GimpVectorLoadProcedure so far) so that we don't
|
||||||
|
* have to make sure the API is really right.
|
||||||
|
*
|
||||||
|
* TODO: we want to eventually get this back to public API in libgimpwidgets,
|
||||||
|
* with a much nicer API and also adding a property widget function.
|
||||||
|
*/
|
||||||
|
#define GIMP_TYPE_RESOLUTION_ENTRY (gimp_resolution_entry_get_type ())
|
||||||
|
G_DECLARE_FINAL_TYPE (GimpResolutionEntry, gimp_resolution_entry, GIMP, RESOLUTION_ENTRY, GtkGrid)
|
||||||
|
|
||||||
|
typedef struct _GimpResolutionEntry GimpResolutionEntry;
|
||||||
|
|
||||||
|
GtkWidget * gimp_prop_resolution_entry_new (GObject *config,
|
||||||
|
const gchar *width_prop,
|
||||||
|
const gchar *height_prop,
|
||||||
|
const gchar *ppi_prop,
|
||||||
|
const gchar *unit_prop);
|
||||||
|
GtkWidget * gimp_resolution_entry_new (const gchar *width_label,
|
||||||
|
gint width,
|
||||||
|
const gchar *height_label,
|
||||||
|
gint height,
|
||||||
|
const gchar *res_label,
|
||||||
|
gdouble pixel_density,
|
||||||
|
GimpUnit display_unit);
|
||||||
|
|
||||||
|
void gimp_resolution_entry_set_width (GimpResolutionEntry *entry,
|
||||||
|
gint width);
|
||||||
|
void gimp_resolution_entry_set_height (GimpResolutionEntry *entry,
|
||||||
|
gint height);
|
||||||
|
void gimp_resolution_entry_set_pixel_density (GimpResolutionEntry *entry,
|
||||||
|
gdouble ppi);
|
||||||
|
void gimp_resolution_entry_set_unit (GimpResolutionEntry *entry,
|
||||||
|
GimpUnit unit);
|
||||||
|
void gimp_resolution_entry_set_keep_ratio (GimpResolutionEntry *entry,
|
||||||
|
gboolean keep_ratio);
|
||||||
|
|
||||||
|
gint gimp_resolution_entry_get_width (GimpResolutionEntry *entry);
|
||||||
|
gint gimp_resolution_entry_get_height (GimpResolutionEntry *entry);
|
||||||
|
gdouble gimp_resolution_entry_get_density (GimpResolutionEntry *entry);
|
||||||
|
GimpUnit gimp_resolution_entry_get_unit (GimpResolutionEntry *entry);
|
||||||
|
gboolean gimp_resolution_entry_get_keep_ratio (GimpResolutionEntry *entry);
|
||||||
|
|
||||||
|
G_END_DECLS
|
||||||
|
|
||||||
|
#endif /* __GIMP_RESOLUTION_ENTRY__ */
|
||||||
|
|
@ -73,6 +73,19 @@ EXPORTS
|
||||||
gimp_prop_gradient_chooser_new
|
gimp_prop_gradient_chooser_new
|
||||||
gimp_prop_palette_chooser_new
|
gimp_prop_palette_chooser_new
|
||||||
gimp_prop_pattern_chooser_new
|
gimp_prop_pattern_chooser_new
|
||||||
|
gimp_prop_resolution_entry_new
|
||||||
|
gimp_resolution_entry_get_density
|
||||||
|
gimp_resolution_entry_get_height
|
||||||
|
gimp_resolution_entry_get_keep_ratio
|
||||||
|
gimp_resolution_entry_get_type
|
||||||
|
gimp_resolution_entry_get_unit
|
||||||
|
gimp_resolution_entry_get_width
|
||||||
|
gimp_resolution_entry_new
|
||||||
|
gimp_resolution_entry_set_height
|
||||||
|
gimp_resolution_entry_set_keep_ratio
|
||||||
|
gimp_resolution_entry_set_pixel_density
|
||||||
|
gimp_resolution_entry_set_unit
|
||||||
|
gimp_resolution_entry_set_width
|
||||||
gimp_resource_chooser_get_label
|
gimp_resource_chooser_get_label
|
||||||
gimp_resource_chooser_get_resource
|
gimp_resource_chooser_get_resource
|
||||||
gimp_resource_chooser_get_type
|
gimp_resource_chooser_get_type
|
||||||
|
|
|
||||||
|
|
@ -296,6 +296,9 @@ libgimpui_sources_introspectable = [
|
||||||
libgimpui_sources = [
|
libgimpui_sources = [
|
||||||
libgimpui_sources_introspectable,
|
libgimpui_sources_introspectable,
|
||||||
gimpuimarshal,
|
gimpuimarshal,
|
||||||
|
|
||||||
|
# TODO: eventually move to libgimpwidgets.
|
||||||
|
'gimpresolutionentry-private.c'
|
||||||
]
|
]
|
||||||
|
|
||||||
libgimpui_headers_introspectable = [
|
libgimpui_headers_introspectable = [
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue