/
TextureThumbnailBrowser.h
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/
TextureThumbnailBrowser.h
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#pragma once
#include "wxutil/FreezePointer.h"
#include "texturelib.h"
#include "wxutil/menu/PopupMenu.h"
#include "registry/CachedKey.h"
#include "wxutil/DockablePanel.h"
#include "wxutil/event/SingleIdleCallback.h"
namespace wxutil
{
class NonModalEntry;
class GLWidget;
}
class wxScrollBar;
class wxScrollEvent;
class wxToolBar;
namespace ui
{
/**
* \brief Widget for rendering textures thumbnails as tiles in a scrollable
* container.
*
* Uses an OpenGL widget to render a rectangular view into a "virtual space"
* containing all active texture tiles.
*/
class TextureThumbnailBrowser :
public wxPanel,
public sigc::trackable,
public wxutil::SingleIdleCallback
{
class TextureTile;
typedef std::list<std::shared_ptr<TextureTile>> TextureTiles;
TextureTiles _tiles;
// Size of the 2D viewport. This is the geometry of the render window, not
// the entire virtual space.
Vector2i _viewportSize;
// Y origin of the virtual space with respect to the current viewport.
// Starts at zero, then becomes more negative as the view is scrolled
// downwards.
int _viewportOriginY;
// Height of the entire virtual space of texture tiles. This changes when
// textures are added or removed.
int _entireSpaceHeight;
std::string _shader;
// The coordinates of the point where the mouse button was pressed
// this is used to check whether the mouse button release is a mouse-drag
// or a contextmenu open command.
int _popupX;
int _popupY;
int _startOrigin;
// The maximum distance the mouse pointer may move and still let the context menu
// pop up on mouse button release
double _epsilon;
wxutil::PopupMenuPtr _popupMenu;
wxMenuItem* _seekInMediaBrowser;
wxMenuItem* _shaderLabel;
wxutil::NonModalEntry* _filter;
bool _filterIgnoresTexturePath;
bool _filterIsIncremental;
wxutil::GLWidget* _wxGLWidget;
wxScrollBar* _scrollbar;
bool _heightChanged;
bool _originInvalid;
wxutil::FreezePointer _freezePointer;
// the increment step we use against the wheel mouse
std::size_t _mouseWheelScrollIncrement;
bool _showTextureFilter;
// make the texture increments match the grid changes
bool _showTextureScrollbar;
// if true, the texture window will only display in-use shaders
// if false, all the shaders in memory are displayed
bool _hideUnused;
bool _showFavouritesOnly;
registry::CachedKey<bool> _showNamesKey;
int _textureScale;
bool _useUniformScale;
// Cached set of material favourites
std::set<std::string> _favourites;
// Whether materials not starting with "textures/" should be visible
bool _showOtherMaterials;
// The uniform size (in pixels) that textures are resized to when m_resizeTextures is true.
int _uniformTextureSize;
unsigned int _maxNameLength;
wxToolBar* _textureToolbar;
// renderable items will be updated next round
bool _updateNeeded;
public:
TextureThumbnailBrowser(wxWindow* parent);
// Schedules an update of the renderable items
void queueUpdate();
void queueDraw();
/** greebo: Returns the currently selected shader
*/
const std::string& getSelectedShader() const;
/** greebo: Sets the currently selected shader to <newShader> and
* refocuses the texturebrowser to that shader.
*/
void setSelectedShader(const std::string& newShader);
protected:
void onIdle() override;
private:
void clearFilter();
int getViewportHeight();
// Callback needed for DeferredAdjustment
void scrollChanged(double value);
// Actually updates the renderable items (usually done before rendering)
void performUpdate();
// This gets called by the ShaderSystem
void onActiveShadersChanged();
// Return the display width/height of a texture in the texture browser
int getTextureWidth(const Texture& tex) const;
int getTextureHeight(const Texture& tex) const;
// Get a new position for the given texture, and advance the CurrentPosition
// state object.
class CurrentPosition;
Vector2i getPositionForTexture(CurrentPosition& layout,
const Texture& texture) const;
bool checkSeekInMediaBrowser(); // sensitivity check
void onSeekInMediaBrowser();
// Displays the context menu
void openContextMenu();
void observeKey(const std::string& key);
void keyChanged();
void loadScaleFromRegistry();
/** greebo: The actual drawing method invoking the GL calls.
*/
void draw();
/** greebo: Performs the actual window movement after a mouse scroll.
*/
void doMouseWheel(bool wheelUp);
void updateScroll();
/** greebo: Returns the currently active filter string or "" if
* the filter is not active.
*/
std::string getFilter();
/**
* Callback run when filter text was changed.
*/
void filterChanged();
/** greebo: Sets the focus of the texture browser to the shader
* with the given name.
*/
void focus(const std::string& name);
/** greebo: Returns the total height of the GL content
*/
int getTotalHeight();
void clampOriginY();
int getOriginY();
void setOriginY(int newOriginY);
/**
* greebo: Returns the shader at the given coords.
* The coords are window coords, not the virtual coords
* which span the entire scrollable area.
* @returns: the MaterialPtr, which may be empty.
*/
MaterialPtr getShaderAtCoords(int x, int y);
/** greebo: Tries to select the shader at the given coords.
* When successful, this applies the shader to the
* current selection.
*/
void selectTextureAt(int mx, int my);
/** greebo: Returns true if the given material is visible,
* taking filter and showUnused into account.
*/
bool materialIsVisible(const MaterialPtr& material);
// wx callbacks
bool onRender();
void onScrollChanged(wxScrollEvent& ev);
void onGLResize(wxSizeEvent& ev);
void onGLMouseScroll(wxMouseEvent& ev);
void onGLMouseButtonPress(wxMouseEvent& ev);
void onGLMouseButtonRelease(wxMouseEvent& ev);
// Called when moving the mouse with the RMB held down (used for scrolling)
void onFrozenMouseMotion(int x, int y, unsigned int state);
void onFrozenMouseCaptureLost();
};
} // namespace ui