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Bring back rectangle selection in a form of a highlighter

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This commit is contained in:
marcoe 2023-09-14 16:53:33 +02:00
parent d46f962562
commit 74bc8e05ba
1 changed files with 82 additions and 20 deletions
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68
zathura/page-widget.c
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@ -40,7 +40,7 @@ typedef struct zathura_page_widget_private_s {
struct {
girara_list_t *list; /**< List of selection rectangles that should be drawn */
gboolean draw; /** Used to clear previous selection */
gboolean draw; /** Draw selection */
} selection;
struct {
@ -53,6 +53,11 @@ typedef struct zathura_page_widget_private_s {
zathura_rectangle_t selection; /**< x1 y1: click point, x2 y2: current position */
gboolean over_link;
} mouse;
struct {
zathura_rectangle_t bounds; /**< Highlight bounds */
gboolean draw; /**< Draw highlighted region */
} highlighter;
} ZathuraPagePrivate;
G_DEFINE_TYPE_WITH_CODE(ZathuraPage, zathura_page_widget, GTK_TYPE_DRAWING_AREA, G_ADD_PRIVATE(ZathuraPage))
@ -233,6 +238,12 @@ zathura_page_widget_init(ZathuraPage* widget)
priv->mouse.selection.y2 = -1;
priv->mouse.over_link = false;
priv->highlighter.bounds.x1 = -1;
priv->highlighter.bounds.y1 = -1;
priv->highlighter.bounds.x2 = -1;
priv->highlighter.bounds.y2 = -1;
priv->highlighter.draw = false;
const unsigned int event_mask = GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_LEAVE_NOTIFY_MASK;
gtk_widget_add_events(GTK_WIDGET(widget), event_mask);
@ -634,6 +645,16 @@ zathura_page_widget_draw(GtkWidget* widget, cairo_t* cairo)
cairo_fill(cairo);
);
}
if (priv->highlighter.bounds.x1 != -1
&& priv->highlighter.bounds.y1 != -1
&& priv->highlighter.draw == true) {
const GdkRGBA color = priv->zathura->ui.colors.highlight_color;
cairo_set_source_rgba(cairo, color.red, color.green, color.blue, transparency);
zathura_rectangle_t rectangle = recalc_rectangle(priv->page, priv->highlighter.bounds);
cairo_rectangle(cairo, rectangle.x1, rectangle.y1,
rectangle.x2 - rectangle.x1, rectangle.y2 - rectangle.y1);
cairo_fill(cairo);
}
} else {
/* set background color */
if (zathura_renderer_recolor_enabled(priv->zathura->sync.render_thread) == true) {
@ -947,8 +968,9 @@ cb_zathura_page_widget_button_press_event(GtkWidget* widget, GdkEventButton* but
return true;
}
if (priv->selection.list != NULL) {
if (priv->selection.list != NULL || priv->highlighter.draw == true) {
priv->selection.draw = false;
priv->highlighter.draw = false;
zathura_page_widget_redraw_canvas(page);
}
@ -1043,6 +1065,31 @@ cb_zathura_page_widget_button_release_event(GtkWidget* widget, GdkEventButton* b
return false;
}
static zathura_rectangle_t
next_selection_rectangle(double basepoint_x, double basepoint_y,
double next_x, double next_y)
{
zathura_rectangle_t rect;
/* make sure that x2 > x1 && y2 > y1 holds */
if (next_x > basepoint_x) {
rect.x1 = basepoint_x;
rect.x2 = next_x;
} else {
rect.x1 = next_x;
rect.x2 = basepoint_x;
}
if (next_y > basepoint_y) {
rect.y1 = basepoint_y;
rect.y2 = next_y;
} else {
rect.y1 = next_y;
rect.y2 = basepoint_y;
}
return rect;
}
static gboolean
cb_zathura_page_widget_motion_notify(GtkWidget* widget, GdkEventMotion* event)
{
@ -1055,7 +1102,21 @@ cb_zathura_page_widget_motion_notify(GtkWidget* widget, GdkEventMotion* event)
zathura_document_t* document = zathura_page_get_document(priv->page);
const double scale = zathura_document_get_scale(document);
if (event->state & GDK_BUTTON1_MASK) {
if (event->state & GDK_BUTTON1_MASK) { /* holding left mouse button */
if (event->state & GDK_CONTROL_MASK) {
double x, y;
rotate_point(document, event->x, event->y, &x, &y);
priv->highlighter.bounds = next_selection_rectangle(priv->mouse.selection.x1,
priv->mouse.selection.y1,
x, y);
priv->highlighter.bounds.x1 /= scale;
priv->highlighter.bounds.y1 /= scale;
priv->highlighter.bounds.x2 /= scale;
priv->highlighter.bounds.y2 /= scale;
priv->highlighter.draw = true;
zathura_page_widget_redraw_canvas(page);
} else {
/* calculate next selection */
rotate_point(document, event->x, event->y,
&priv->mouse.selection.x2, &priv->mouse.selection.y2);
@ -1075,6 +1136,7 @@ cb_zathura_page_widget_motion_notify(GtkWidget* widget, GdkEventMotion* event)
priv->selection.draw = true;
zathura_page_widget_redraw_canvas(page);
}
}
} else {
if (priv->links.retrieved == false) {
priv->links.list = zathura_page_links_get(priv->page, NULL);