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https://github.com/RGBCube/serenity
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3DFileViewer: Allow zooming via mouse wheel
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parent
3c509cf2f7
commit
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1 changed files with 11 additions and 0 deletions
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@ -82,6 +82,7 @@ private:
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virtual void paint_event(GUI::PaintEvent&) override;
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virtual void timer_event(Core::TimerEvent&) override;
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virtual void mousemove_event(GUI::MouseEvent&) override;
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virtual void mousewheel_event(GUI::MouseEvent&) override;
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private:
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RefPtr<Mesh> m_mesh;
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@ -105,6 +106,7 @@ private:
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GLint m_wrap_t_mode = GL_REPEAT;
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float m_texture_scale = 1.0f;
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GLint m_mag_filter = GL_NEAREST;
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float m_zoom = 1;
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};
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void GLContextWidget::paint_event(GUI::PaintEvent& event)
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@ -129,6 +131,14 @@ void GLContextWidget::mousemove_event(GUI::MouseEvent& event)
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m_last_mouse = event.position();
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}
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void GLContextWidget::mousewheel_event(GUI::MouseEvent& event)
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{
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if (event.wheel_delta() > 0)
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m_zoom /= 1.1f;
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else
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m_zoom *= 1.1f;
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}
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void GLContextWidget::timer_event(Core::TimerEvent&)
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{
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Core::ElapsedTimer timer;
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@ -152,6 +162,7 @@ void GLContextWidget::timer_event(Core::TimerEvent&)
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, m_wrap_s_mode);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, m_wrap_t_mode);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, m_mag_filter);
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glScalef(m_zoom, m_zoom, m_zoom);
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if (!m_mesh.is_null())
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m_mesh->draw(m_texture_scale);
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