From c187fbdf60956f3bf6392bfd132ba960e43ef4ec Mon Sep 17 00:00:00 2001 From: Dana Jansens Date: Wed, 4 Dec 2002 13:14:11 +0000 Subject: [PATCH] move event handling into basewidget again add the basewidget class --- otk/basewidget.cc | 301 ++++++++++++++++++++++++++++++++++++++++++++++ otk/basewidget.hh | 129 ++++++++++++++++++++ otk/widget.cc | 22 ---- otk/widget.hh | 6 +- 4 files changed, 431 insertions(+), 27 deletions(-) create mode 100644 otk/basewidget.cc create mode 100644 otk/basewidget.hh diff --git a/otk/basewidget.cc b/otk/basewidget.cc new file mode 100644 index 00000000..242ccd98 --- /dev/null +++ b/otk/basewidget.cc @@ -0,0 +1,301 @@ +// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*- + +#ifdef HAVE_CONFIG_H +# include "../config.h" +#endif // HAVE_CONFIG_H + +#include "basewidget.hh" +#include "display.hh" +#include "assassin.hh" +#include "screeninfo.hh" + +#include + +namespace otk { + +OtkBaseWidget::OtkBaseWidget(OtkBaseWidget *parent) + : OtkEventHandler(), + _dirty(false), + _parent(parent), _style(parent->getStyle()), + _cursor(parent->getCursor()), _bevel_width(parent->getBevelWidth()), + _ignore_config(0), _visible(false), _focused(false), _grabbed_mouse(false), + _grabbed_keyboard(false), _texture(0), _bg_pixmap(0), _bg_pixel(0), + _screen(parent->getScreen()) +{ + assert(parent); + parent->addChild(this); + create(); +} + +OtkBaseWidget::OtkBaseWidget(Style *style, Cursor cursor, int bevel_width) + : OtkEventHandler(), + _dirty(false), _parent(0), _style(style), _cursor(cursor), + _bevel_width(bevel_width), _ignore_config(0), _visible(false), + _focused(false), _grabbed_mouse(false), _grabbed_keyboard(false), + _texture(0), _bg_pixmap(0), _bg_pixel(0), _screen(style->getScreen()) +{ + assert(style); + create(); +} + +OtkBaseWidget::~OtkBaseWidget() +{ + if (_visible) + hide(); + + std::for_each(_children.begin(), _children.end(), PointerAssassin()); + + if (_parent) + _parent->removeChild(this); + + XDestroyWindow(otk::OBDisplay::display, _window); +} + +void OtkBaseWidget::create(void) +{ + const ScreenInfo *scr_info = otk::OBDisplay::screenInfo(_screen); + Window p_window = _parent ? _parent->getWindow() : scr_info->getRootWindow(); + + _rect.setRect(0, 0, 1, 1); // just some initial values + + XSetWindowAttributes attrib_create; + unsigned long create_mask = CWBackPixmap | CWBorderPixel | CWEventMask; + + attrib_create.background_pixmap = None; + attrib_create.colormap = scr_info->getColormap(); + attrib_create.event_mask = ButtonPressMask | ButtonReleaseMask | + ButtonMotionMask | ExposureMask | StructureNotifyMask; + + if (_cursor) { + create_mask |= CWCursor; + attrib_create.cursor = _cursor; + } + + _window = XCreateWindow(otk::OBDisplay::display, p_window, _rect.x(), + _rect.y(), _rect.width(), _rect.height(), 0, + scr_info->getDepth(), InputOutput, + scr_info->getVisual(), create_mask, &attrib_create); + _ignore_config++; +} + +void OtkBaseWidget::setWidth(int w) +{ + assert(w > 0); + setGeometry(_rect.x(), _rect.y(), w, _rect.height()); +} + +void OtkBaseWidget::setHeight(int h) +{ + assert(h > 0); + setGeometry(_rect.x(), _rect.y(), _rect.width(), h); +} + +void OtkBaseWidget::move(const Point &to) +{ + move(to.x(), to.y()); +} + +void OtkBaseWidget::move(int x, int y) +{ + _rect.setPos(x, y); + XMoveWindow(otk::OBDisplay::display, _window, x, y); + _ignore_config++; +} + +void OtkBaseWidget::resize(const Point &to) +{ + resize(to.x(), to.y()); +} + +void OtkBaseWidget::resize(int w, int h) +{ + assert(w > 0 && h > 0); + setGeometry(_rect.x(), _rect.y(), w, h); +} + +void OtkBaseWidget::setGeometry(const Rect &new_geom) +{ + setGeometry(new_geom.x(), new_geom.y(), new_geom.width(), new_geom.height()); +} + +void OtkBaseWidget::setGeometry(const Point &topleft, int width, int height) +{ + setGeometry(topleft.x(), topleft.y(), width, height); +} + +void OtkBaseWidget::setGeometry(int x, int y, int width, int height) +{ + _rect = Rect(x, y, width, height); + _dirty = true; + + XMoveResizeWindow(otk::OBDisplay::display, _window, x, y, width, height); + _ignore_config++; +} + +void OtkBaseWidget::show(bool recursive) +{ + if (_visible) + return; + + // make sure the internal state isn't mangled + if (_dirty) + update(); + + if (recursive) { + OtkBaseWidgetList::iterator it = _children.begin(), end = _children.end(); + for (; it != end; ++it) + (*it)->show(); + } + + XMapWindow(otk::OBDisplay::display, _window); + _visible = true; +} + +void OtkBaseWidget::hide(bool recursive) +{ + if (! _visible) + return; + + if (recursive) { + OtkBaseWidgetList::iterator it = _children.begin(), end = _children.end(); + for (; it != end; ++it) + (*it)->hide(); + } + + XUnmapWindow(otk::OBDisplay::display, _window); + _visible = false; +} + +void OtkBaseWidget::focus(void) +{ + if (! _visible) + return; + + XSetInputFocus(otk::OBDisplay::display, _window, RevertToPointerRoot, + CurrentTime); +} + +bool OtkBaseWidget::grabMouse(void) +{ + Status ret = XGrabPointer(otk::OBDisplay::display, _window, True, + (ButtonPressMask | ButtonReleaseMask | + ButtonMotionMask | EnterWindowMask | + LeaveWindowMask | PointerMotionMask), + GrabModeSync, GrabModeAsync, None, None, + CurrentTime); + _grabbed_mouse = (ret == GrabSuccess); + return _grabbed_mouse; +} + +void OtkBaseWidget::ungrabMouse(void) +{ + if (! _grabbed_mouse) + return; + + XUngrabPointer(otk::OBDisplay::display, CurrentTime); + _grabbed_mouse = false; +} + +bool OtkBaseWidget::grabKeyboard(void) +{ + Status ret = XGrabKeyboard(otk::OBDisplay::display, _window, True, + GrabModeSync, GrabModeAsync, CurrentTime); + _grabbed_keyboard = (ret == GrabSuccess); + return _grabbed_keyboard; + +} + +void OtkBaseWidget::ungrabKeyboard(void) +{ + if (! _grabbed_keyboard) + return; + + XUngrabKeyboard(otk::OBDisplay::display, CurrentTime); + _grabbed_keyboard = false; +} + +void OtkBaseWidget::render(void) +{ + if (!_texture) return; + + _bg_pixmap = _texture->render(_rect.width(), _rect.height(), _bg_pixmap); + + if (_bg_pixmap) + XSetWindowBackgroundPixmap(otk::OBDisplay::display, _window, _bg_pixmap); + else { + unsigned int pix = _texture->color().pixel(); + if (pix != _bg_pixel) { + _bg_pixel = pix; + XSetWindowBackground(otk::OBDisplay::display, _window, pix); + } + } +} + +void OtkBaseWidget::update(void) +{ + if (_dirty) { + render(); + XClearWindow(OBDisplay::display, _window); + } + + OtkBaseWidgetList::iterator it = _children.begin(), end = _children.end(); + for (; it != end; ++it) + (*it)->update(); + + _dirty = false; +} + +void OtkBaseWidget::addChild(OtkBaseWidget *child, bool front) +{ + assert(child); + if (front) + _children.push_front(child); + else + _children.push_back(child); +} + +void OtkBaseWidget::removeChild(OtkBaseWidget *child) +{ + assert(child); + OtkBaseWidgetList::iterator it, end = _children.end(); + for (it = _children.begin(); it != end; ++it) { + if ((*it) == child) + break; + } + + if (it != _children.end()) + _children.erase(it); +} + +void OtkBaseWidget::setStyle(Style *style) +{ + assert(style); + _style = style; + _dirty = true; + OtkBaseWidgetList::iterator it, end = _children.end(); + for (it = _children.begin(); it != end; ++it) + (*it)->setStyle(style); +} + +void OtkBaseWidget::exposeHandler(const XExposeEvent &e) +{ + OtkEventHandler::exposeHandler(e); + _dirty = true; + update(); +} + +void OtkBaseWidget::configureHandler(const XConfigureEvent &e) +{ + OtkEventHandler::configureHandler(e); + if (_ignore_config) { + _ignore_config--; + } else { + if (!(e.width == _rect.width() && e.height == _rect.height())) { + _dirty = true; + _rect.setSize(e.width, e.height); + } + update(); + } +} + +} diff --git a/otk/basewidget.hh b/otk/basewidget.hh new file mode 100644 index 00000000..4dfc28fd --- /dev/null +++ b/otk/basewidget.hh @@ -0,0 +1,129 @@ +#ifndef __basewidget_hh +#define __basewidget_hh + +#include "rect.hh" +#include "point.hh" +#include "texture.hh" +#include "style.hh" +#include "display.hh" +#include "eventdispatcher.hh" + +extern "C" { +#include +} + +#include + +namespace otk { + +class OtkBaseWidget : public OtkEventHandler { + +public: + + typedef std::list OtkBaseWidgetList; + + OtkBaseWidget(OtkBaseWidget *parent); + OtkBaseWidget(Style *style, Cursor cursor = 0, int bevel_width = 1); + + virtual ~OtkBaseWidget(); + + //! Redraw the widget and all of its children + virtual void update(void); + + void exposeHandler(const XExposeEvent &e); + void configureHandler(const XConfigureEvent &e); + + inline Window getWindow(void) const { return _window; } + inline const OtkBaseWidget *getParent(void) const { return _parent; } + inline const OtkBaseWidgetList &getChildren(void) const { return _children; } + inline unsigned int getScreen(void) const { return _screen; } + inline const Rect &getRect(void) const { return _rect; } + + void move(const Point &to); + void move(int x, int y); + + virtual void setWidth(int); + virtual void setHeight(int); + + virtual int width() const { return _rect.width(); } + virtual int height() const { return _rect.height(); } + + virtual void resize(const Point &to); + virtual void resize(int x, int y); + + virtual void setGeometry(const Rect &new_geom); + virtual void setGeometry(const Point &topleft, int width, int height); + virtual void setGeometry(int x, int y, int width, int height); + + inline bool isVisible(void) const { return _visible; }; + virtual void show(bool recursive = false); + virtual void hide(bool recursive = false); + + inline bool isFocused(void) const { return _focused; }; + virtual void focus(void); + + inline bool hasGrabbedMouse(void) const { return _grabbed_mouse; } + bool grabMouse(void); + void ungrabMouse(void); + + inline bool hasGrabbedKeyboard(void) const { return _grabbed_keyboard; } + bool grabKeyboard(void); + void ungrabKeyboard(void); + + inline BTexture *getTexture(void) const { return _texture; } + virtual void setTexture(BTexture *texture) + { _texture = texture; _dirty = true; } + + virtual void addChild(OtkBaseWidget *child, bool front = false); + virtual void removeChild(OtkBaseWidget *child); + + inline Cursor getCursor(void) const { return _cursor; } + void setCursor(Cursor cursor) { + _cursor = cursor; + XDefineCursor(OBDisplay::display, _window, _cursor); + } + + inline int getBevelWidth(void) const { return _bevel_width; } + void setBevelWidth(int bevel_width) + { assert(bevel_width > 0); _bevel_width = bevel_width; } + + inline Style *getStyle(void) const { return _style; } + virtual void setStyle(Style *style); + +protected: + + //! If the widget needs to redraw itself. Watched by all subclasses too! + bool _dirty; + + Window _window; + + OtkBaseWidget *_parent; + OtkBaseWidgetList _children; + + Style *_style; + Cursor _cursor; + int _bevel_width; + int _ignore_config; + + bool _visible; + bool _focused; + + bool _grabbed_mouse; + bool _grabbed_keyboard; + + BTexture *_texture; + Pixmap _bg_pixmap; + unsigned int _bg_pixel; + + Rect _rect; + unsigned int _screen; + +private: + + void create(void); + void render(void); +}; + +} + +#endif // __basewidget_hh diff --git a/otk/widget.cc b/otk/widget.cc index a859809f..1da7dd90 100644 --- a/otk/widget.cc +++ b/otk/widget.cc @@ -12,7 +12,6 @@ namespace otk { OtkWidget::OtkWidget(OtkWidget *parent, Direction direction) : OtkBaseWidget(parent), - OtkEventHandler(), _direction(direction), _stretchable_vert(false), _stretchable_horz(false), _event_dispatcher(parent->getEventDispatcher()) { @@ -23,7 +22,6 @@ OtkWidget::OtkWidget(OtkWidget *parent, Direction direction) OtkWidget::OtkWidget(OtkEventDispatcher *event_dispatcher, Style *style, Direction direction, Cursor cursor, int bevel_width) : OtkBaseWidget(style, cursor, bevel_width), - OtkEventHandler(), _direction(direction), _stretchable_vert(false), _stretchable_horz(false), _event_dispatcher(event_dispatcher) { @@ -186,25 +184,5 @@ void OtkWidget::setEventDispatcher(OtkEventDispatcher *disp) _event_dispatcher->registerHandler(_window, this); } -void OtkWidget::exposeHandler(const XExposeEvent &e) -{ - OtkEventHandler::exposeHandler(e); - _dirty = true; - update(); -} - -void OtkWidget::configureHandler(const XConfigureEvent &e) -{ - OtkEventHandler::configureHandler(e); - if (_ignore_config) { - _ignore_config--; - } else { - if (!(e.width == _rect.width() && e.height == _rect.height())) { - _dirty = true; - _rect.setSize(e.width, e.height); - } - update(); - } -} } diff --git a/otk/widget.hh b/otk/widget.hh index 5c008e18..207de86c 100644 --- a/otk/widget.hh +++ b/otk/widget.hh @@ -2,7 +2,6 @@ #define __widget_hh #include "basewidget.hh" -#include "eventdispatcher.hh" extern "C" { #include @@ -10,7 +9,7 @@ extern "C" { namespace otk { -class OtkWidget : public OtkBaseWidget, public OtkEventHandler { +class OtkWidget : public OtkBaseWidget { public: @@ -25,9 +24,6 @@ public: virtual void update(void); - void exposeHandler(const XExposeEvent &e); - void configureHandler(const XConfigureEvent &e); - inline bool isStretchableHorz(void) const { return _stretchable_horz; } void setStretchableHorz(bool s_horz = true) { _stretchable_horz = s_horz; } -- 2.39.2