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Implement panning in inspector window with mouse drag (#5867)

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rfranke
2020-08-04 18:25:44 +02:00
parent affa336680
commit e82c787369
2 changed files with 24 additions and 1 deletions
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22
rtgui/inspector.cc
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@@ -92,7 +92,7 @@ Inspector::Inspector () : currImage(nullptr), scaled(false), scale(1.0), zoomSca
window.signal_key_release_event().connect(sigc::mem_fun(*this, &Inspector::on_key_release));
window.signal_key_press_event().connect(sigc::mem_fun(*this, &Inspector::on_key_press));
add_events(Gdk::BUTTON_PRESS_MASK | Gdk::SCROLL_MASK | Gdk::SMOOTH_SCROLL_MASK);
add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_MOTION_MASK | Gdk::SCROLL_MASK | Gdk::SMOOTH_SCROLL_MASK);
gestureZoom = Gtk::GestureZoom::create(*this);
gestureZoom->signal_begin().connect(sigc::mem_fun(*this, &Inspector::on_zoom_begin));
gestureZoom->signal_scale_changed().connect(sigc::mem_fun(*this, &Inspector::on_zoom_scale_changed));
@@ -162,6 +162,7 @@ bool Inspector::on_key_press(GdkEventKey *event)
bool Inspector::on_button_press_event(GdkEventButton *event)
{
if (event->type == GDK_BUTTON_PRESS) {
button_pos.set(event->x, event->y);
if (!pinned)
// pin window with mouse click
pinned = true;
@@ -170,6 +171,25 @@ bool Inspector::on_button_press_event(GdkEventButton *event)
return false;
}
bool Inspector::on_motion_notify_event(GdkEventMotion *event)
{
int deviceScale = get_scale_factor();
int delta_x = (button_pos.x - event->x)*deviceScale;
int delta_y = (button_pos.y - event->y)*deviceScale;
int imW = currImage->imgBuffer.getWidth();
int imH = currImage->imgBuffer.getHeight();
moveCenter(delta_x, delta_y, imW, imH, deviceScale);
button_pos.set(event->x, event->y);
if (!dirty) {
dirty = true;
queue_draw();
}
return true;
}
bool Inspector::on_scroll_event(GdkEventScroll *event)
{
if (!currImage)

3
rtgui/inspector.h
View File

@@ -63,7 +63,10 @@ private:
bool on_key_release(GdkEventKey *event);
bool on_key_press(GdkEventKey *event);
rtengine::Coord button_pos;
bool on_button_press_event(GdkEventButton *event) override;
bool on_motion_notify_event(GdkEventMotion *event) override;
bool on_scroll_event(GdkEventScroll *event) override;
void moveCenter(int delta_x, int delta_y, int imW, int imH, int deviceScale);