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259d0ac860
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259d0ac860 | |||
aa985514a6 | |||
6f5e32386e | |||
92556d5269 |
@ -28,8 +28,8 @@ The rest of this README will concern itself with externalities.
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Building and Running
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--------------------
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Build-only dependencies: CMake, pkg-config, asciidoctor, librsvg (for the GUI),
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icoutils (for the GUI, when targetting Windows) +
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Build-only dependencies: CMake, pkg-config, gettext utilities, asciidoctor,
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librsvg (for the GUI), icoutils (for the GUI, when targetting Windows) +
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Runtime dependencies: ncursesw, zlib, ICU, termo (included), glib-2.0 >= 2.38,
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pango, xcb, xcb-xfixes (the latter two optional for the TUI),
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gtk+-3.0 (for the GUI)
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@ -223,6 +223,7 @@ struct _StardictView
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gchar *matched; ///< Highlight common word part of this
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gint top_offset; ///< Pixel offset into the entry
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gdouble drag_last_offset; ///< Last offset when dragging
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// TODO: think about making it, e.g., a pair of (ViewEntry *, guint)
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// NOTE: this is the index of a Pango paragraph (a virtual entity)
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guint selected; ///< Offset to the selected definition
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@ -489,8 +490,9 @@ stardict_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
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{
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// On GDK/Wayland, the mouse wheel will typically create 1.5 deltas,
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// after dividing a 15 degree click angle from libinput by 10.
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// (Noticed on Arch + Sway, cannot reproduce on Ubuntu 22.04.)
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// On X11, as libinput(4) indicates, the delta will always be 1.0.
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double delta = CLAMP(event->delta_y, -1, +1);
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double delta = CLAMP (event->delta_y, -1, +1);
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stardict_view_scroll (self, GTK_SCROLL_STEPS, 3 * delta);
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return TRUE;
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}
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@ -499,6 +501,38 @@ stardict_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
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}
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}
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static void
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on_drag_begin (GtkGestureDrag *drag, G_GNUC_UNUSED gdouble start_x,
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G_GNUC_UNUSED gdouble start_y, gpointer user_data)
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{
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GtkGesture *gesture = GTK_GESTURE (drag);
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GdkEventSequence *sequence
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= gtk_gesture_get_last_updated_sequence (gesture);
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GdkModifierType state = 0;
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const GdkEvent *last_event = gtk_gesture_get_last_event (gesture, sequence);
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gdk_event_get_state (last_event, &state);
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if (state & gtk_accelerator_get_default_mod_mask ())
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gtk_gesture_set_sequence_state (gesture, sequence,
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GTK_EVENT_SEQUENCE_DENIED);
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else
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{
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gtk_gesture_set_sequence_state (gesture, sequence,
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GTK_EVENT_SEQUENCE_CLAIMED);
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STARDICT_VIEW (user_data)->drag_last_offset = 0;
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}
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}
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static void
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on_drag_update (G_GNUC_UNUSED GtkGestureDrag *drag,
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G_GNUC_UNUSED gdouble offset_x, gdouble offset_y, gpointer user_data)
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{
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StardictView *self = STARDICT_VIEW (user_data);
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self->top_offset += self->drag_last_offset - offset_y;
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adjust_for_offset (self);
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self->drag_last_offset = offset_y;
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}
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static void
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stardict_view_class_init (StardictViewClass *klass)
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{
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@ -522,6 +556,15 @@ stardict_view_class_init (StardictViewClass *klass)
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static void
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stardict_view_init (G_GNUC_UNUSED StardictView *self)
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{
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GtkGesture *drag = gtk_gesture_drag_new (GTK_WIDGET (self));
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gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (drag), TRUE);
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gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (drag),
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GTK_PHASE_BUBBLE);
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g_object_set_data_full (G_OBJECT (self), "stardict-view-drag-gesture",
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drag, g_object_unref);
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g_signal_connect (drag, "drag-begin", G_CALLBACK (on_drag_begin), self);
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g_signal_connect (drag, "drag-update", G_CALLBACK (on_drag_update), self);
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}
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// --- Public ------------------------------------------------------------------
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@ -218,6 +218,6 @@ main (int argc, char *argv[])
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fatal ("Error: failed to write the dictionary: %s\n", error->message);
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generator_free (generator);
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fclose (fsorted);
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pclose (fsorted);
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return 0;
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}
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