diff options
| author | Søren Sandmann Pedersen <ssp@redhat.com> | 2013-01-26 00:34:53 -0500 |
|---|---|---|
| committer | Søren Sandmann Pedersen <ssp@redhat.com> | 2013-01-27 23:06:28 -0500 |
| commit | 65fc1adb6545737058e938105ae948a3607c277c (patch) | |
| tree | e3aa727a30cc00478c3eb1d82e92d9743c2cd066 | |
| parent | ed39992564beefe6b12f81e842caba11aff98a9c (diff) | |
demo/scale: Add a spin button to set the number of subsample bits
For large upscalings the level of subsampling for the filter has a
quite visible effect, so make it settable in the UI so that people can
experiment with various values.
| -rw-r--r-- | demos/scale.c | 7 | ||||
| -rw-r--r-- | demos/scale.ui | 30 |
2 files changed, 36 insertions, 1 deletions
diff --git a/demos/scale.c b/demos/scale.c index 9100ff7..869ada1 100644 --- a/demos/scale.c +++ b/demos/scale.c @@ -39,6 +39,7 @@ typedef struct GtkAdjustment * scale_x_adjustment; GtkAdjustment * scale_y_adjustment; GtkAdjustment * rotate_adjustment; + GtkAdjustment * subsample_adjustment; int scaled_width; int scaled_height; } app_t; @@ -236,7 +237,8 @@ rescale (GtkWidget *may_be_null, app_t *app) get_value (app, filters, "reconstruct_y_combo_box"), get_value (app, filters, "sample_x_combo_box"), get_value (app, filters, "sample_y_combo_box"), - 4, 4); + gtk_adjustment_get_value (app->subsample_adjustment), + gtk_adjustment_get_value (app->subsample_adjustment)); pixman_image_set_filter (app->original, PIXMAN_FILTER_SEPARABLE_CONVOLUTION, params, n_params); @@ -360,10 +362,13 @@ app_new (pixman_image_t *original) GTK_ADJUSTMENT (gtk_builder_get_object (app->builder, "scale_y_adjustment")); app->rotate_adjustment = GTK_ADJUSTMENT (gtk_builder_get_object (app->builder, "rotate_adjustment")); + app->subsample_adjustment = + GTK_ADJUSTMENT (gtk_builder_get_object (app->builder, "subsample_adjustment")); g_signal_connect (app->scale_x_adjustment, "value_changed", G_CALLBACK (rescale), app); g_signal_connect (app->scale_y_adjustment, "value_changed", G_CALLBACK (rescale), app); g_signal_connect (app->rotate_adjustment, "value_changed", G_CALLBACK (rescale), app); + g_signal_connect (app->subsample_adjustment, "value_changed", G_CALLBACK (rescale), app); widget = get_widget (app, "scale_x_scale"); gtk_scale_add_mark (GTK_SCALE (widget), 0.0, GTK_POS_LEFT, NULL); diff --git a/demos/scale.ui b/demos/scale.ui index f7c0c80..b3450d3 100644 --- a/demos/scale.ui +++ b/demos/scale.ui @@ -23,6 +23,14 @@ <property name="page_increment">10</property> <property name="page_size">10</property> </object> + <object class="GtkAdjustment" id="subsample_adjustment"> + <property name="lower">1</property> + <property name="upper">12</property> + <property name="step_increment">1</property> + <property name="page_increment">1</property> + <property name="page_size">0</property> + <property name="value">4</property> + </object> <object class="GtkWindow" id="main"> <child> <object class="GtkHBox" id="u"> @@ -51,6 +59,7 @@ <child> <object class="GtkVBox" id="box1"> <property name="visible">True</property> + <property name="spacing">12</property> <child> <object class="GtkHBox" id="box2"> <property name="visible">True</property> @@ -234,6 +243,17 @@ </packing> </child> <child> + <object class="GtkLabel" id="label9"> + <property name="visible">True</property> + <property name="xalign">1</property> + <property name="label" translatable="yes"><b>Subsample:</b></property> + <property name="use_markup">True</property> + </object> + <packing> + <property name="top_attach">5</property> + </packing> + </child> + <child> <object class="GtkComboBox" id="reconstruct_x_combo_box"> <property name="visible">True</property> </object> @@ -277,6 +297,16 @@ <property name="top_attach">4</property> </packing> </child> + <child> + <object class="GtkSpinButton" id="subsample_spin_button"> + <property name="visible">True</property> + <property name="adjustment">subsample_adjustment</property> + </object> + <packing> + <property name="left_attach">1</property> + <property name="top_attach">5</property> + </packing> + </child> </object> <packing> <property name="expand">False</property> |