/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include #include #include #include #include #include #define LOK_USE_UNSTABLE_API #include #include #include #include #include #include "tilebuffer.hxx" #if !GLIB_CHECK_VERSION(2,32,0) #define G_SOURCE_REMOVE FALSE #define G_SOURCE_CONTINUE TRUE #endif #if !GLIB_CHECK_VERSION(2,40,0) #define g_info(...) g_log(G_LOG_DOMAIN, G_LOG_LEVEL_INFO, __VA_ARGS__) #endif // Cursor bitmaps from the Android app. #define CURSOR_HANDLE_DIR "/android/source/res/drawable/" // Number of handles around a graphic selection. #define GRAPHIC_HANDLE_COUNT 8 struct _LOKDocViewPrivate { gchar* m_aLOPath; gchar* m_aDocPath; guint m_nLoadProgress; gboolean m_bIsLoading; gboolean m_bCanZoomIn; gboolean m_bCanZoomOut; LibreOfficeKit* m_pOffice; LibreOfficeKitDocument* m_pDocument; TileBuffer m_aTileBuffer; gfloat m_fZoom; glong m_nDocumentWidthTwips; glong m_nDocumentHeightTwips; /// View or edit mode. gboolean m_bEdit; /// Position and size of the visible cursor. GdkRectangle m_aVisibleCursor; /// Cursor overlay is visible or hidden (for blinking). gboolean m_bCursorOverlayVisible; /// Cursor is visible or hidden (e.g. for graphic selection). gboolean m_bCursorVisible; /// Time of the last button press. guint32 m_nLastButtonPressTime; /// Time of the last button release. guint32 m_nLastButtonReleaseTime; /// Rectangles of the current text selection. std::vector m_aTextSelectionRectangles; /// Position and size of the selection start (as if there would be a cursor caret there). GdkRectangle m_aTextSelectionStart; /// Position and size of the selection end. GdkRectangle m_aTextSelectionEnd; GdkRectangle m_aGraphicSelection; gboolean m_bInDragGraphicSelection; /// @name Start/middle/end handle. ///@{ /// Bitmap of the text selection start handle. cairo_surface_t* m_pHandleStart; /// Rectangle of the text selection start handle, to know if the user clicked on it or not GdkRectangle m_aHandleStartRect; /// If we are in the middle of a drag of the text selection end handle. gboolean m_bInDragStartHandle; /// Bitmap of the text selection middle handle. cairo_surface_t* m_pHandleMiddle; /// Rectangle of the text selection middle handle, to know if the user clicked on it or not GdkRectangle m_aHandleMiddleRect; /// If we are in the middle of a drag of the text selection middle handle. gboolean m_bInDragMiddleHandle; /// Bitmap of the text selection end handle. cairo_surface_t* m_pHandleEnd; /// Rectangle of the text selection end handle, to know if the user clicked on it or not GdkRectangle m_aHandleEndRect; /// If we are in the middle of a drag of the text selection end handle. gboolean m_bInDragEndHandle; ///@} /// @name Graphic handles. ///@{ /// Bitmap of a graphic selection handle. cairo_surface_t* m_pGraphicHandle; /// Rectangle of a graphic selection handle, to know if the user clicked on it or not. GdkRectangle m_aGraphicHandleRects[8]; /// If we are in the middle of a drag of a graphic selection handle. gboolean m_bInDragGraphicHandles[8]; ///@} }; enum { LOAD_CHANGED, LOAD_FAILED, EDIT_CHANGED, COMMAND_CHANGED, SEARCH_NOT_FOUND, PART_CHANGED, HYPERLINK_CLICKED, LAST_SIGNAL }; enum { PROP_0, PROP_LO_PATH, PROP_DOC_PATH, PROP_EDITABLE, PROP_LOAD_PROGRESS, PROP_ZOOM, PROP_IS_LOADING, PROP_DOC_WIDTH, PROP_DOC_HEIGHT, PROP_CAN_ZOOM_IN, PROP_CAN_ZOOM_OUT }; static guint doc_view_signals[LAST_SIGNAL] = { 0 }; static void lok_doc_view_initable_iface_init (GInitableIface *iface); SAL_DLLPUBLIC_EXPORT GType lok_doc_view_get_type(); #ifdef __GNUC__ #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wunused-function" #endif G_DEFINE_TYPE_WITH_CODE (LOKDocView, lok_doc_view, GTK_TYPE_DRAWING_AREA, G_ADD_PRIVATE (LOKDocView) G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE, lok_doc_view_initable_iface_init)); #ifdef __GNUC__ #pragma GCC diagnostic pop #endif struct CallbackData { int m_nType; std::string m_aPayload; LOKDocView* m_pDocView; CallbackData(int nType, const std::string& rPayload, LOKDocView* pDocView) : m_nType(nType), m_aPayload(rPayload), m_pDocView(pDocView) {} }; static void payloadToSize(const char* pPayload, long& rWidth, long& rHeight) { rWidth = rHeight = 0; gchar** ppCoordinates = g_strsplit(pPayload, ", ", 2); gchar** ppCoordinate = ppCoordinates; if (!*ppCoordinate) return; rWidth = atoi(*ppCoordinate); ++ppCoordinate; if (!*ppCoordinate) return; rHeight = atoi(*ppCoordinate); g_strfreev(ppCoordinates); } /// Returns the string representation of a LibreOfficeKitCallbackType enumeration element. static const char* callbackTypeToString (int nType) { switch (nType) { case LOK_CALLBACK_INVALIDATE_TILES: return "LOK_CALLBACK_INVALIDATE_TILES"; case LOK_CALLBACK_INVALIDATE_VISIBLE_CURSOR: return "LOK_CALLBACK_INVALIDATE_VISIBLE_CURSOR"; case LOK_CALLBACK_TEXT_SELECTION: return "LOK_CALLBACK_TEXT_SELECTION"; case LOK_CALLBACK_TEXT_SELECTION_START: return "LOK_CALLBACK_TEXT_SELECTION_START"; case LOK_CALLBACK_TEXT_SELECTION_END: return "LOK_CALLBACK_TEXT_SELECTION_END"; case LOK_CALLBACK_CURSOR_VISIBLE: return "LOK_CALLBACK_CURSOR_VISIBLE"; case LOK_CALLBACK_GRAPHIC_SELECTION: return "LOK_CALLBACK_GRAPHIC_SELECTION"; case LOK_CALLBACK_HYPERLINK_CLICKED: return "LOK_CALLBACK_HYPERLINK_CLICKED"; case LOK_CALLBACK_STATE_CHANGED: return "LOK_CALLBACK_STATE_CHANGED"; case LOK_CALLBACK_STATUS_INDICATOR_START: return "LOK_CALLBACK_STATUS_INDICATOR_START"; case LOK_CALLBACK_STATUS_INDICATOR_SET_VALUE: return "LOK_CALLBACK_STATUS_INDICATOR_SET_VALUE"; case LOK_CALLBACK_STATUS_INDICATOR_FINISH: return "LOK_CALLBACK_STATUS_INDICATOR_FINISH"; case LOK_CALLBACK_SEARCH_NOT_FOUND: return "LOK_CALLBACK_SEARCH_NOT_FOUND"; case LOK_CALLBACK_DOCUMENT_SIZE_CHANGED: return "LOK_CALLBACK_DOCUMENT_SIZE_CHANGED"; case LOK_CALLBACK_SET_PART: return "LOK_CALLBACK_SET_PART"; } return 0; } static bool isEmptyRectangle(const GdkRectangle& rRectangle) { return rRectangle.x == 0 && rRectangle.y == 0 && rRectangle.width == 0 && rRectangle.height == 0; } static gboolean signalKey (GtkWidget* pWidget, GdkEventKey* pEvent) { LOKDocView* pDocView = LOK_DOC_VIEW(pWidget); LOKDocViewPrivate* priv = static_cast(lok_doc_view_get_instance_private (pDocView)); int nCharCode = 0; int nKeyCode = 0; if (!priv->m_bEdit) { g_info("signalKey: not in edit mode, ignore"); return FALSE; } switch (pEvent->keyval) { case GDK_KEY_BackSpace: nKeyCode = com::sun::star::awt::Key::BACKSPACE; break; case GDK_KEY_Delete: nKeyCode = com::sun::star::awt::Key::DELETE; break; case GDK_KEY_Return: nKeyCode = com::sun::star::awt::Key::RETURN; break; case GDK_KEY_Escape: nKeyCode = com::sun::star::awt::Key::ESCAPE; break; case GDK_KEY_Tab: nKeyCode = com::sun::star::awt::Key::TAB; break; case GDK_KEY_Down: nKeyCode = com::sun::star::awt::Key::DOWN; break; case GDK_KEY_Up: nKeyCode = com::sun::star::awt::Key::UP; break; case GDK_KEY_Left: nKeyCode = com::sun::star::awt::Key::LEFT; break; case GDK_KEY_Right: nKeyCode = com::sun::star::awt::Key::RIGHT; break; default: if (pEvent->keyval >= GDK_KEY_F1 && pEvent->keyval <= GDK_KEY_F26) nKeyCode = com::sun::star::awt::Key::F1 + (pEvent->keyval - GDK_KEY_F1); else nCharCode = gdk_keyval_to_unicode(pEvent->keyval); } // rsc is not public API, but should be good enough for debugging purposes. // If this is needed for real, then probably a new param of type // css::awt::KeyModifier is needed in postKeyEvent(). if (pEvent->state & GDK_SHIFT_MASK) nKeyCode |= KEY_SHIFT; if (pEvent->type == GDK_KEY_RELEASE) priv->m_pDocument->pClass->postKeyEvent(priv->m_pDocument, LOK_KEYEVENT_KEYUP, nCharCode, nKeyCode); else priv->m_pDocument->pClass->postKeyEvent(priv->m_pDocument, LOK_KEYEVENT_KEYINPUT, nCharCode, nKeyCode); return FALSE; } static gboolean handleTimeout (gpointer pData) { LOKDocView* pDocView = LOK_DOC_VIEW (pData); LOKDocViewPrivate* priv = static_cast(lok_doc_view_get_instance_private (pDocView)); if (priv->m_bEdit) { if (priv->m_bCursorOverlayVisible) priv->m_bCursorOverlayVisible = false; else priv->m_bCursorOverlayVisible = true; gtk_widget_queue_draw(GTK_WIDGET(pDocView)); } return G_SOURCE_CONTINUE; } static void commandChanged(LOKDocView* pDocView, const std::string& rString) { g_signal_emit(pDocView, doc_view_signals[COMMAND_CHANGED], 0, rString.c_str()); } static void searchNotFound(LOKDocView* pDocView, const std::string& rString) { g_signal_emit(pDocView, doc_view_signals[SEARCH_NOT_FOUND], 0, rString.c_str()); } static void setPart(LOKDocView* pDocView, const std::string& rString) { g_signal_emit(pDocView, doc_view_signals[PART_CHANGED], 0, std::stoi(rString)); } static void hyperlinkClicked(LOKDocView* pDocView, const std::string& rString) { g_signal_emit(pDocView, doc_view_signals[HYPERLINK_CLICKED], 0, rString.c_str()); } /// Implementation of the global callback handler, invoked by globalCallback(); static gboolean globalCallback (gpointer pData) { CallbackData* pCallback = static_cast(pData); switch (pCallback->m_nType) { case LOK_CALLBACK_STATUS_INDICATOR_START: { } break; case LOK_CALLBACK_STATUS_INDICATOR_SET_VALUE: { } break; case LOK_CALLBACK_STATUS_INDICATOR_FINISH: { } break; default: g_assert(false); break; } delete pCallback; return G_SOURCE_REMOVE; } static void globalCallbackWorker(int nType, const char* pPayload, void* pData) { LOKDocView* pDocView = LOK_DOC_VIEW (pData); CallbackData* pCallback = new CallbackData(nType, pPayload ? pPayload : "(nil)", pDocView); g_info("LOKDocView_Impl::globalCallbackWorkerImpl: %s, '%s'", callbackTypeToString(nType), pPayload); gdk_threads_add_idle(globalCallback, pCallback); } static GdkRectangle payloadToRectangle (LOKDocView* pDocView, const char* pPayload) { LOKDocViewPrivate* priv = static_cast(lok_doc_view_get_instance_private (pDocView)); GdkRectangle aRet; gchar** ppCoordinates = g_strsplit(pPayload, ", ", 4); gchar** ppCoordinate = ppCoordinates; aRet.width = aRet.height = aRet.x = aRet.y = 0; if (!*ppCoordinate) return aRet; aRet.x = atoi(*ppCoordinate); if (aRet.x < 0) aRet.x = 0; ++ppCoordinate; if (!*ppCoordinate) return aRet; aRet.y = atoi(*ppCoordinate); if (aRet.y < 0) aRet.y = 0; ++ppCoordinate; if (!*ppCoordinate) return aRet; aRet.width = atoi(*ppCoordinate); if (aRet.x + aRet.width > priv->m_nDocumentWidthTwips) aRet.width = priv->m_nDocumentWidthTwips - aRet.x; ++ppCoordinate; if (!*ppCoordinate) return aRet; aRet.height = atoi(*ppCoordinate); if (aRet.y + aRet.height > priv->m_nDocumentHeightTwips) aRet.height = priv->m_nDocumentHeightTwips - aRet.y; g_strfreev(ppCoordinates); return aRet; } static const std::vector payloadToRectangles(LOKDocView* pDocView, const char* pPayload) { std::vector aRet; gchar** ppRectangles = g_strsplit(pPayload, "; ", 0); for (gchar** ppRectangle = ppRectangles; *ppRectangle; ++ppRectangle) aRet.push_back(payloadToRectangle(pDocView, *ppRectangle)); g_strfreev(ppRectangles); return aRet; } static void setTilesInvalid (LOKDocView* pDocView, const GdkRectangle& rRectangle) { LOKDocViewPrivate* priv = static_cast(lok_doc_view_get_instance_private (pDocView)); GdkRectangle aRectanglePixels; GdkPoint aStart, aEnd; aRectanglePixels.x = twipToPixel(rRectangle.x, priv->m_fZoom); aRectanglePixels.y = twipToPixel(rRectangle.y, priv->m_fZoom); aRectanglePixels.width = twipToPixel(rRectangle.width, priv->m_fZoom); aRectanglePixels.height = twipToPixel(rRectangle.height, priv->m_fZoom); aStart.x = aRectanglePixels.y / nTileSizePixels; aStart.y = aRectanglePixels.x / nTileSizePixels; aEnd.x = (aRectanglePixels.y + aRectanglePixels.height + nTileSizePixels) / nTileSizePixels; aEnd.y = (aRectanglePixels.x + aRectanglePixels.width + nTileSizePixels) / nTileSizePixels; for (int i = aStart.x; i < aEnd.x; i++) for (int j = aStart.y; j < aEnd.y; j++) priv->m_aTileBuffer.setInvalid(i, j); } static gboolean callback (gpointer pData) { CallbackData* pCallback = static_cast(pData); LOKDocView* pDocView = LOK_DOC_VIEW (pCallback->m_pDocView); LOKDocViewPrivate* priv = static_cast(lok_doc_view_get_instance_private (pDocView)); switch (pCallback->m_nType) { case LOK_CALLBACK_INVALIDATE_TILES: { if (pCallback->m_aPayload != "EMPTY") { GdkRectangle aRectangle = payloadToRectangle(pDocView, pCallback->m_aPayload.c_str()); setTilesInvalid(pDocView, aRectangle); } else priv->m_aTileBuffer.resetAllTiles(); gtk_widget_queue_draw(GTK_WIDGET(pDocView)); } break; case LOK_CALLBACK_INVALIDATE_VISIBLE_CURSOR: { priv->m_aVisibleCursor = payloadToRectangle(pDocView, pCallback->m_aPayload.c_str()); priv->m_bCursorOverlayVisible = true; gtk_widget_queue_draw(GTK_WIDGET(pDocView)); } break; case LOK_CALLBACK_TEXT_SELECTION: { priv->m_aTextSelectionRectangles = payloadToRectangles(pDocView, pCallback->m_aPayload.c_str()); // In case the selection is empty, then we get no LOK_CALLBACK_TEXT_SELECTION_START/END events. if (priv->m_aTextSelectionRectangles.empty()) { memset(&priv->m_aTextSelectionStart, 0, sizeof(priv->m_aTextSelectionStart)); memset(&priv->m_aHandleStartRect, 0, sizeof(priv->m_aHandleStartRect)); memset(&priv->m_aTextSelectionEnd, 0, sizeof(priv->m_aTextSelectionEnd)); memset(&priv->m_aHandleEndRect, 0, sizeof(priv->m_aHandleEndRect)); } else memset(&priv->m_aHandleMiddleRect, 0, sizeof(priv->m_aHandleMiddleRect)); } break; case LOK_CALLBACK_TEXT_SELECTION_START: { priv->m_aTextSelectionStart = payloadToRectangle(pDocView, pCallback->m_aPayload.c_str()); } break; case LOK_CALLBACK_TEXT_SELECTION_END: { priv->m_aTextSelectionEnd = payloadToRectangle(pDocView, pCallback->m_aPayload.c_str()); } break; case LOK_CALLBACK_CURSOR_VISIBLE: { priv->m_bCursorVisible = pCallback->m_aPayload == "true"; } break; case LOK_CALLBACK_GRAPHIC_SELECTION: { if (pCallback->m_aPayload != "EMPTY") priv->m_aGraphicSelection = payloadToRectangle(pDocView, pCallback->m_aPayload.c_str()); else memset(&priv->m_aGraphicSelection, 0, sizeof(priv->m_aGraphicSelection)); gtk_widget_queue_draw(GTK_WIDGET(pDocView)); } break; case LOK_CALLBACK_HYPERLINK_CLICKED: { hyperlinkClicked(pDocView, pCallback->m_aPayload); } break; case LOK_CALLBACK_STATE_CHANGED: { commandChanged(pDocView, pCallback->m_aPayload); } break; case LOK_CALLBACK_SEARCH_NOT_FOUND: { searchNotFound(pDocView, pCallback->m_aPayload); } break; case LOK_CALLBACK_DOCUMENT_SIZE_CHANGED: { payloadToSize(pCallback->m_aPayload.c_str(), priv->m_nDocumentWidthTwips, priv->m_nDocumentHeightTwips); gtk_widget_set_size_request(GTK_WIDGET(pDocView), twipToPixel(priv->m_nDocumentWidthTwips, priv->m_fZoom), twipToPixel(priv->m_nDocumentHeightTwips, priv->m_fZoom)); } break; case LOK_CALLBACK_SET_PART: { setPart(pDocView, pCallback->m_aPayload); } break; default: g_assert(false); break; } delete pCallback; return G_SOURCE_REMOVE; } static void callbackWorker (int nType, const char* pPayload, void* pData) { LOKDocView* pDocView = LOK_DOC_VIEW (pData); CallbackData* pCallback = new CallbackData(nType, pPayload ? pPayload : "(nil)", pDocView); g_info("lok_doc_view_callbackWorker: %s, '%s'", callbackTypeToString(nType), pPayload); gdk_threads_add_idle(callback, pCallback); } static void renderHandle(LOKDocView* pDocView, cairo_t* pCairo, const GdkRectangle& rCursor, cairo_surface_t* pHandle, GdkRectangle& rRectangle) { LOKDocViewPrivate* priv = static_cast(lok_doc_view_get_instance_private (pDocView)); GdkPoint aCursorBottom; int nHandleWidth, nHandleHeight; double fHandleScale; nHandleWidth = cairo_image_surface_get_width(pHandle); nHandleHeight = cairo_image_surface_get_height(pHandle); // We want to scale down the handle, so that its height is the same as the cursor caret. fHandleScale = twipToPixel(rCursor.height, priv->m_fZoom) / nHandleHeight; // We want the top center of the handle bitmap to be at the bottom center of the cursor rectangle. aCursorBottom.x = twipToPixel(rCursor.x, priv->m_fZoom) + twipToPixel(rCursor.width, priv->m_fZoom) / 2 - (nHandleWidth * fHandleScale) / 2; aCursorBottom.y = twipToPixel(rCursor.y, priv->m_fZoom) + twipToPixel(rCursor.height, priv->m_fZoom); cairo_save (pCairo); cairo_translate(pCairo, aCursorBottom.x, aCursorBottom.y); cairo_scale(pCairo, fHandleScale, fHandleScale); cairo_set_source_surface(pCairo, pHandle, 0, 0); cairo_paint(pCairo); cairo_restore (pCairo); rRectangle.x = aCursorBottom.x; rRectangle.y = aCursorBottom.y; rRectangle.width = nHandleWidth * fHandleScale; rRectangle.height = nHandleHeight * fHandleScale; } /// Renders pHandle around an rSelection rectangle on pCairo. static void renderGraphicHandle(LOKDocView* pDocView, cairo_t* pCairo, const GdkRectangle& rSelection, cairo_surface_t* pHandle) { LOKDocViewPrivate* priv = static_cast(lok_doc_view_get_instance_private (pDocView)); int nHandleWidth, nHandleHeight; GdkRectangle aSelection; nHandleWidth = cairo_image_surface_get_width(pHandle); nHandleHeight = cairo_image_surface_get_height(pHandle); aSelection.x = twipToPixel(rSelection.x, priv->m_fZoom); aSelection.y = twipToPixel(rSelection.y, priv->m_fZoom); aSelection.width = twipToPixel(rSelection.width, priv->m_fZoom); aSelection.height = twipToPixel(rSelection.height, priv->m_fZoom); for (int i = 0; i < GRAPHIC_HANDLE_COUNT; ++i) { int x = aSelection.x, y = aSelection.y; switch (i) { case 0: // top-left break; case 1: // top-middle x += aSelection.width / 2; break; case 2: // top-right x += aSelection.width; break; case 3: // middle-left y += aSelection.height / 2; break; case 4: // middle-right x += aSelection.width; y += aSelection.height / 2; break; case 5: // bottom-left y += aSelection.height; break; case 6: // bottom-middle x += aSelection.width / 2; y += aSelection.height; break; case 7: // bottom-right x += aSelection.width; y += aSelection.height; break; } // Center the handle. x -= nHandleWidth / 2; y -= nHandleHeight / 2; priv->m_aGraphicHandleRects[i].x = x; priv->m_aGraphicHandleRects[i].y = y; priv->m_aGraphicHandleRects[i].width = nHandleWidth; priv->m_aGraphicHandleRects[i].height = nHandleHeight; cairo_save (pCairo); cairo_translate(pCairo, x, y); cairo_set_source_surface(pCairo, pHandle, 0, 0); cairo_paint(pCairo); cairo_restore (pCairo); } } static gboolean renderDocument(LOKDocView* pDocView, cairo_t* pCairo) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); GdkRectangle aVisibleArea; long nDocumentWidthPixels = twipToPixel(priv->m_nDocumentWidthTwips, priv->m_fZoom); long nDocumentHeightPixels = twipToPixel(priv->m_nDocumentHeightTwips, priv->m_fZoom); // Total number of rows / columns in this document. guint nRows = ceil((double)nDocumentHeightPixels / nTileSizePixels); guint nColumns = ceil((double)nDocumentWidthPixels / nTileSizePixels); gdk_cairo_get_clip_rectangle (pCairo, &aVisibleArea); aVisibleArea.x = pixelToTwip (aVisibleArea.x, priv->m_fZoom); aVisibleArea.y = pixelToTwip (aVisibleArea.y, priv->m_fZoom); aVisibleArea.width = pixelToTwip (aVisibleArea.width, priv->m_fZoom); aVisibleArea.height = pixelToTwip (aVisibleArea.height, priv->m_fZoom); // Render the tiles. for (guint nRow = 0; nRow < nRows; ++nRow) { for (guint nColumn = 0; nColumn < nColumns; ++nColumn) { GdkRectangle aTileRectangleTwips, aTileRectanglePixels; bool bPaint = true; // Determine size of the tile: the rightmost/bottommost tiles may // be smaller, and we need the size to decide if we need to repaint. if (nColumn == nColumns - 1) aTileRectanglePixels.width = nDocumentWidthPixels - nColumn * nTileSizePixels; else aTileRectanglePixels.width = nTileSizePixels; if (nRow == nRows - 1) aTileRectanglePixels.height = nDocumentHeightPixels - nRow * nTileSizePixels; else aTileRectanglePixels.height = nTileSizePixels; // Determine size and position of the tile in document coordinates, // so we can decide if we can skip painting for partial rendering. aTileRectangleTwips.x = pixelToTwip(nTileSizePixels, priv->m_fZoom) * nColumn; aTileRectangleTwips.y = pixelToTwip(nTileSizePixels, priv->m_fZoom) * nRow; aTileRectangleTwips.width = pixelToTwip(aTileRectanglePixels.width, priv->m_fZoom); aTileRectangleTwips.height = pixelToTwip(aTileRectanglePixels.height, priv->m_fZoom); if (!gdk_rectangle_intersect(&aVisibleArea, &aTileRectangleTwips, 0)) bPaint = false; if (bPaint) { Tile& currentTile = priv->m_aTileBuffer.getTile(nRow, nColumn, priv->m_fZoom); GdkPixbuf* pPixBuf = currentTile.getBuffer(); gdk_cairo_set_source_pixbuf (pCairo, pPixBuf, twipToPixel(aTileRectangleTwips.x, priv->m_fZoom), twipToPixel(aTileRectangleTwips.y, priv->m_fZoom)); cairo_paint(pCairo); } } } return FALSE; } static gboolean renderOverlay(LOKDocView* pDocView, cairo_t* pCairo) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); if (priv->m_bEdit && priv->m_bCursorVisible && priv->m_bCursorOverlayVisible && !isEmptyRectangle(priv->m_aVisibleCursor)) { if (priv->m_aVisibleCursor.width < 30) // Set a minimal width if it would be 0. priv->m_aVisibleCursor.width = 30; cairo_set_source_rgb(pCairo, 0, 0, 0); cairo_rectangle(pCairo, twipToPixel(priv->m_aVisibleCursor.x, priv->m_fZoom), twipToPixel(priv->m_aVisibleCursor.y, priv->m_fZoom), twipToPixel(priv->m_aVisibleCursor.width, priv->m_fZoom), twipToPixel(priv->m_aVisibleCursor.height, priv->m_fZoom)); cairo_fill(pCairo); } if (priv->m_bEdit && priv->m_bCursorVisible && !isEmptyRectangle(priv->m_aVisibleCursor) && priv->m_aTextSelectionRectangles.empty()) { // Have a cursor, but no selection: we need the middle handle. gchar* handleMiddlePath = g_strconcat (priv->m_aLOPath, "/../..", CURSOR_HANDLE_DIR, "handle_middle.png", NULL); if (!priv->m_pHandleMiddle) priv->m_pHandleMiddle = cairo_image_surface_create_from_png(handleMiddlePath); g_free (handleMiddlePath); renderHandle(pDocView, pCairo, priv->m_aVisibleCursor, priv->m_pHandleMiddle, priv->m_aHandleMiddleRect); } if (!priv->m_aTextSelectionRectangles.empty()) { for (GdkRectangle& rRectangle : priv->m_aTextSelectionRectangles) { // Blue with 75% transparency. cairo_set_source_rgba(pCairo, ((double)0x43)/255, ((double)0xac)/255, ((double)0xe8)/255, 0.25); cairo_rectangle(pCairo, twipToPixel(rRectangle.x, priv->m_fZoom), twipToPixel(rRectangle.y, priv->m_fZoom), twipToPixel(rRectangle.width, priv->m_fZoom), twipToPixel(rRectangle.height, priv->m_fZoom)); cairo_fill(pCairo); } // Handles if (!isEmptyRectangle(priv->m_aTextSelectionStart)) { // Have a start position: we need a start handle. gchar* handleStartPath = g_strconcat (priv->m_aLOPath, "/../..", CURSOR_HANDLE_DIR, "handle_start.png", NULL); if (!priv->m_pHandleStart) priv->m_pHandleStart = cairo_image_surface_create_from_png(handleStartPath); renderHandle(pDocView, pCairo, priv->m_aTextSelectionStart, priv->m_pHandleStart, priv->m_aHandleStartRect); g_free (handleStartPath); } if (!isEmptyRectangle(priv->m_aTextSelectionEnd)) { // Have a start position: we need an end handle. gchar* handleEndPath = g_strconcat (priv->m_aLOPath, "/../..", CURSOR_HANDLE_DIR, "handle_end.png", NULL); if (!priv->m_pHandleEnd) priv->m_pHandleEnd = cairo_image_surface_create_from_png(handleEndPath); renderHandle(pDocView, pCairo, priv->m_aTextSelectionEnd, priv->m_pHandleEnd, priv->m_aHandleEndRect); g_free (handleEndPath); } } if (!isEmptyRectangle(priv->m_aGraphicSelection)) { gchar* handleGraphicPath = g_strconcat (priv->m_aLOPath, "/../..", CURSOR_HANDLE_DIR, "handle_graphic.png", NULL); if (!priv->m_pGraphicHandle) priv->m_pGraphicHandle = cairo_image_surface_create_from_png(handleGraphicPath); renderGraphicHandle(pDocView, pCairo, priv->m_aGraphicSelection, priv->m_pGraphicHandle); g_free (handleGraphicPath); } return FALSE; } static gboolean lok_doc_view_signal_button(GtkWidget* pWidget, GdkEventButton* pEvent) { LOKDocView* pDocView = LOK_DOC_VIEW (pWidget); LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); g_info("LOKDocView_Impl::signalButton: %d, %d (in twips: %d, %d)", (int)pEvent->x, (int)pEvent->y, (int)pixelToTwip(pEvent->x, priv->m_fZoom), (int)pixelToTwip(pEvent->y, priv->m_fZoom)); gtk_widget_grab_focus(GTK_WIDGET(pDocView)); if (pEvent->type == GDK_BUTTON_RELEASE) { if (priv->m_bInDragStartHandle) { g_info("LOKDocView_Impl::signalButton: end of drag start handle"); priv->m_bInDragStartHandle = false; return FALSE; } else if (priv->m_bInDragMiddleHandle) { g_info("LOKDocView_Impl::signalButton: end of drag middle handle"); priv->m_bInDragMiddleHandle = false; return FALSE; } else if (priv->m_bInDragEndHandle) { g_info("LOKDocView_Impl::signalButton: end of drag end handle"); priv->m_bInDragEndHandle = false; return FALSE; } for (int i = 0; i < GRAPHIC_HANDLE_COUNT; ++i) { if (priv->m_bInDragGraphicHandles[i]) { g_info("LOKDocView_Impl::signalButton: end of drag graphic handle #%d", i); priv->m_bInDragGraphicHandles[i] = false; priv->m_pDocument->pClass->setGraphicSelection(priv->m_pDocument, LOK_SETGRAPHICSELECTION_END, pixelToTwip(pEvent->x, priv->m_fZoom), pixelToTwip(pEvent->y, priv->m_fZoom)); return FALSE; } } if (priv->m_bInDragGraphicSelection) { g_info("LOKDocView_Impl::signalButton: end of drag graphic selection"); priv->m_bInDragGraphicSelection = false; priv->m_pDocument->pClass->setGraphicSelection(priv->m_pDocument, LOK_SETGRAPHICSELECTION_END, pixelToTwip(pEvent->x, priv->m_fZoom), pixelToTwip(pEvent->y, priv->m_fZoom)); return FALSE; } } if (priv->m_bEdit) { GdkRectangle aClick; aClick.x = pEvent->x; aClick.y = pEvent->y; aClick.width = 1; aClick.height = 1; if (pEvent->type == GDK_BUTTON_PRESS) { if (gdk_rectangle_intersect(&aClick, &priv->m_aHandleStartRect, NULL)) { g_info("LOKDocView_Impl::signalButton: start of drag start handle"); priv->m_bInDragStartHandle = true; return FALSE; } else if (gdk_rectangle_intersect(&aClick, &priv->m_aHandleMiddleRect, NULL)) { g_info("LOKDocView_Impl::signalButton: start of drag middle handle"); priv->m_bInDragMiddleHandle = true; return FALSE; } else if (gdk_rectangle_intersect(&aClick, &priv->m_aHandleEndRect, NULL)) { g_info("LOKDocView_Impl::signalButton: start of drag end handle"); priv->m_bInDragEndHandle = true; return FALSE; } for (int i = 0; i < GRAPHIC_HANDLE_COUNT; ++i) { if (gdk_rectangle_intersect(&aClick, &priv->m_aGraphicHandleRects[i], NULL)) { g_info("LOKDocView_Impl::signalButton: start of drag graphic handle #%d", i); priv->m_bInDragGraphicHandles[i] = true; priv->m_pDocument->pClass->setGraphicSelection(priv->m_pDocument, LOK_SETGRAPHICSELECTION_START, pixelToTwip(priv->m_aGraphicHandleRects[i].x + priv->m_aGraphicHandleRects[i].width / 2, priv->m_fZoom), pixelToTwip(priv->m_aGraphicHandleRects[i].y + priv->m_aGraphicHandleRects[i].height / 2, priv->m_fZoom)); return FALSE; } } } } if (!priv->m_bEdit) lok_doc_view_set_edit(pDocView, TRUE); switch (pEvent->type) { case GDK_BUTTON_PRESS: { int nCount = 1; if ((pEvent->time - priv->m_nLastButtonPressTime) < 250) nCount++; priv->m_nLastButtonPressTime = pEvent->time; priv->m_pDocument->pClass->postMouseEvent(priv->m_pDocument, LOK_MOUSEEVENT_MOUSEBUTTONDOWN, pixelToTwip(pEvent->x, priv->m_fZoom), pixelToTwip(pEvent->y, priv->m_fZoom), nCount); break; } case GDK_BUTTON_RELEASE: { int nCount = 1; if ((pEvent->time - priv->m_nLastButtonReleaseTime) < 250) nCount++; priv->m_nLastButtonReleaseTime = pEvent->time; priv->m_pDocument->pClass->postMouseEvent(priv->m_pDocument, LOK_MOUSEEVENT_MOUSEBUTTONUP, pixelToTwip(pEvent->x, priv->m_fZoom), pixelToTwip(pEvent->y, priv->m_fZoom), nCount); break; } default: break; } return FALSE; } static void getDragPoint(GdkRectangle* pHandle, GdkEventMotion* pEvent, GdkPoint* pPoint) { GdkPoint aCursor, aHandle; // Center of the cursor rectangle: we know that it's above the handle. aCursor.x = pHandle->x + pHandle->width / 2; aCursor.y = pHandle->y - pHandle->height / 2; // Center of the handle rectangle. aHandle.x = pHandle->x + pHandle->width / 2; aHandle.y = pHandle->y + pHandle->height / 2; // Our target is the original cursor position + the dragged offset. pPoint->x = aCursor.x + (pEvent->x - aHandle.x); pPoint->y = aCursor.y + (pEvent->y - aHandle.y); } static gboolean lok_doc_view_signal_motion (GtkWidget* pWidget, GdkEventMotion* pEvent) { LOKDocView* pDocView = LOK_DOC_VIEW (pWidget); LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); GdkPoint aPoint; if (priv->m_bInDragMiddleHandle) { g_info("lcl_signalMotion: dragging the middle handle"); getDragPoint(&priv->m_aHandleMiddleRect, pEvent, &aPoint); priv->m_pDocument->pClass->setTextSelection(priv->m_pDocument, LOK_SETTEXTSELECTION_RESET, pixelToTwip(aPoint.x, priv->m_fZoom), pixelToTwip(aPoint.y, priv->m_fZoom)); return FALSE; } if (priv->m_bInDragStartHandle) { g_info("lcl_signalMotion: dragging the start handle"); getDragPoint(&priv->m_aHandleStartRect, pEvent, &aPoint); priv->m_pDocument->pClass->setTextSelection(priv->m_pDocument, LOK_SETTEXTSELECTION_START, pixelToTwip(aPoint.x, priv->m_fZoom), pixelToTwip(aPoint.y, priv->m_fZoom)); return FALSE; } if (priv->m_bInDragEndHandle) { g_info("lcl_signalMotion: dragging the end handle"); getDragPoint(&priv->m_aHandleEndRect, pEvent, &aPoint); priv->m_pDocument->pClass->setTextSelection(priv->m_pDocument, LOK_SETTEXTSELECTION_END, pixelToTwip(aPoint.x, priv->m_fZoom), pixelToTwip(aPoint.y, priv->m_fZoom)); return FALSE; } for (int i = 0; i < GRAPHIC_HANDLE_COUNT; ++i) { if (priv->m_bInDragGraphicHandles[i]) { g_info("lcl_signalMotion: dragging the graphic handle #%d", i); return FALSE; } } if (priv->m_bInDragGraphicSelection) { g_info("lcl_signalMotion: dragging the graphic selection"); return FALSE; } GdkRectangle aMotionInTwipsInTwips; aMotionInTwipsInTwips.x = pixelToTwip(pEvent->x, priv->m_fZoom); aMotionInTwipsInTwips.y = pixelToTwip(pEvent->y, priv->m_fZoom); aMotionInTwipsInTwips.width = 1; aMotionInTwipsInTwips.height = 1; if (gdk_rectangle_intersect(&aMotionInTwipsInTwips, &priv->m_aGraphicSelection, 0)) { g_info("lcl_signalMotion: start of drag graphic selection"); priv->m_bInDragGraphicSelection = true; priv->m_pDocument->pClass->setGraphicSelection(priv->m_pDocument, LOK_SETGRAPHICSELECTION_START, pixelToTwip(pEvent->x, priv->m_fZoom), pixelToTwip(pEvent->y, priv->m_fZoom)); return FALSE; } // Otherwise a mouse move, as on the desktop. priv->m_pDocument->pClass->postMouseEvent(priv->m_pDocument, LOK_MOUSEEVENT_MOUSEMOVE, pixelToTwip(pEvent->x, priv->m_fZoom), pixelToTwip(pEvent->y, priv->m_fZoom), 1); return FALSE; } static void lok_doc_view_init (LOKDocView* pDocView) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); priv->m_bCursorVisible = true; gtk_widget_add_events(GTK_WIDGET(pDocView), GDK_BUTTON_PRESS_MASK |GDK_BUTTON_RELEASE_MASK |GDK_BUTTON_MOTION_MASK |GDK_KEY_PRESS_MASK |GDK_KEY_RELEASE_MASK); } static void lok_doc_view_set_property (GObject* object, guint propId, const GValue *value, GParamSpec *pspec) { LOKDocView* pDocView = LOK_DOC_VIEW (object); LOKDocViewPrivate* priv = static_cast(lok_doc_view_get_instance_private (pDocView)); switch (propId) { case PROP_LO_PATH: priv->m_aLOPath = g_value_dup_string (value); break; case PROP_DOC_PATH: priv->m_aDocPath = g_value_dup_string (value); break; case PROP_EDITABLE: lok_doc_view_set_edit (pDocView, g_value_get_boolean (value)); break; case PROP_ZOOM: lok_doc_view_set_zoom (pDocView, g_value_get_float (value)); break; case PROP_DOC_WIDTH: priv->m_nDocumentWidthTwips = g_value_get_long (value); break; case PROP_DOC_HEIGHT: priv->m_nDocumentHeightTwips = g_value_get_long (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propId, pspec); } } static void lok_doc_view_get_property (GObject* object, guint propId, GValue *value, GParamSpec *pspec) { LOKDocView* pDocView = LOK_DOC_VIEW (object); LOKDocViewPrivate* priv = static_cast(lok_doc_view_get_instance_private (pDocView)); switch (propId) { case PROP_LO_PATH: g_value_set_string (value, priv->m_aLOPath); break; case PROP_DOC_PATH: g_value_set_string (value, priv->m_aDocPath); break; case PROP_EDITABLE: g_value_set_boolean (value, priv->m_bEdit); break; case PROP_LOAD_PROGRESS: g_value_set_uint (value, priv->m_nLoadProgress); break; case PROP_ZOOM: g_value_set_float (value, priv->m_fZoom); break; case PROP_IS_LOADING: g_value_set_boolean (value, priv->m_bIsLoading); break; case PROP_DOC_WIDTH: g_value_set_long (value, priv->m_nDocumentWidthTwips); break; case PROP_DOC_HEIGHT: g_value_set_long (value, priv->m_nDocumentHeightTwips); break; case PROP_CAN_ZOOM_IN: g_value_set_boolean (value, priv->m_bCanZoomIn); break; case PROP_CAN_ZOOM_OUT: g_value_set_boolean (value, priv->m_bCanZoomOut); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propId, pspec); } } static gboolean lok_doc_view_draw (GtkWidget* pWidget, cairo_t* pCairo) { LOKDocView *pDocView = LOK_DOC_VIEW (pWidget); renderDocument (pDocView, pCairo); renderOverlay (pDocView, pCairo); return FALSE; } static void lok_doc_view_finalize (GObject* object) { LOKDocView* pDocView = LOK_DOC_VIEW (object); LOKDocViewPrivate* priv = static_cast(lok_doc_view_get_instance_private (pDocView)); if (priv->m_pDocument) priv->m_pDocument->pClass->destroy (priv->m_pDocument); if (priv->m_pOffice) priv->m_pOffice->pClass->destroy (priv->m_pOffice); G_OBJECT_CLASS (lok_doc_view_parent_class)->finalize (object); } static gboolean lok_doc_view_initable_init (GInitable *initable, GCancellable* /*cancellable*/, GError **error) { LOKDocView *pDocView = LOK_DOC_VIEW (initable); LOKDocViewPrivate* priv = static_cast(lok_doc_view_get_instance_private (pDocView)); if (priv->m_pOffice != NULL) return TRUE; priv->m_pOffice = lok_init (priv->m_aLOPath); if (priv->m_pOffice == NULL) { g_set_error (error, g_quark_from_static_string ("LOK initialization error"), 0, "Failed to get LibreOfficeKit context. Make sure path (%s) is correct", priv->m_aLOPath); return FALSE; } return TRUE; } static void lok_doc_view_initable_iface_init (GInitableIface *iface) { iface->init = lok_doc_view_initable_init; } static void lok_doc_view_class_init (LOKDocViewClass* pClass) { GObjectClass *pGObjectClass = G_OBJECT_CLASS(pClass); GtkWidgetClass *pWidgetClass = GTK_WIDGET_CLASS(pClass); pGObjectClass->get_property = lok_doc_view_get_property; pGObjectClass->set_property = lok_doc_view_set_property; pGObjectClass->finalize = lok_doc_view_finalize; pWidgetClass->draw = lok_doc_view_draw; pWidgetClass->button_press_event = lok_doc_view_signal_button; pWidgetClass->button_release_event = lok_doc_view_signal_button; pWidgetClass->key_press_event = signalKey; pWidgetClass->key_release_event = signalKey; pWidgetClass->motion_notify_event = lok_doc_view_signal_motion; /** * LOKDocView:lopath: * * The absolute path of the LibreOffice install. */ g_object_class_install_property (pGObjectClass, PROP_LO_PATH, g_param_spec_string("lopath", "LO Path", "LibreOffice Install Path", 0, static_cast(G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY))); /** * LOKDocView:docpath: * * The path of the document that is currently being viewed. */ g_object_class_install_property (pGObjectClass, PROP_DOC_PATH, g_param_spec_string("docpath", "Document Path", "The URI of the document to open", 0, static_cast(G_PARAM_READWRITE))); /** * LOKDocView:editable: * * Whether the document loaded inside of #LOKDocView is editable or not. */ g_object_class_install_property (pGObjectClass, PROP_EDITABLE, g_param_spec_boolean("editable", "Editable", "Whether the content is in edit mode or not", FALSE, static_cast(G_PARAM_READWRITE))); /** * LOKDocView:load-progress: * * The percent completion of the current loading operation of the * document. This can be used for progress bars. Note that this is not a * very accurate progress indicator, and its value might reset it couple of * times to 0 and start again. You should not rely on its numbers. */ g_object_class_install_property (pGObjectClass, PROP_LOAD_PROGRESS, g_param_spec_int("load-progress", "Estimated Load Progress", "Whether the content is in edit mode or not", 0, 100, 0, G_PARAM_READABLE)); /** * LOKDocView:zoom-level: * * The current zoom level of the document loaded inside #LOKDocView. The * default value is 1.0. */ g_object_class_install_property (pGObjectClass, PROP_ZOOM, g_param_spec_float("zoom-level", "Zoom Level", "The current zoom level of the content", 0, 5.0, 1.0, static_cast(G_PARAM_READWRITE | G_PARAM_CONSTRUCT))); /** * LOKDocView:is-loading: * * Whether the requested document is being loaded or not. %TRUE if it is * being loaded, otherwise %FALSE. */ g_object_class_install_property (pGObjectClass, PROP_IS_LOADING, g_param_spec_boolean("is-loading", "Is Loading", "Whether the view is loading a document", FALSE, static_cast(G_PARAM_READABLE))); /** * LOKDocView:doc-width: * * The width of the currently loaded document in #LOKDocView in twips. */ g_object_class_install_property (pGObjectClass, PROP_DOC_WIDTH, g_param_spec_long("doc-width", "Document Width", "Width of the document in twips", 0, G_MAXLONG, 0, static_cast(G_PARAM_READWRITE))); /** * LOKDocView:doc-height: * * The height of the currently loaded document in #LOKDocView in twips. */ g_object_class_install_property (pGObjectClass, PROP_DOC_HEIGHT, g_param_spec_long("doc-height", "Document Height", "Height of the document in twips", 0, G_MAXLONG, 0, static_cast(G_PARAM_READWRITE))); /** * LOKDocView:can-zoom-in: * * It tells whether the view can further be zoomed in or not. */ g_object_class_install_property (pGObjectClass, PROP_CAN_ZOOM_IN, g_param_spec_boolean("can-zoom-in", "Can Zoom In", "Whether the view can be zoomed in further", TRUE, static_cast(G_PARAM_READABLE | G_PARAM_STATIC_STRINGS))); /** * LOKDocView:can-zoom-out: * * It tells whether the view can further be zoomed out or not. */ g_object_class_install_property (pGObjectClass, PROP_CAN_ZOOM_OUT, g_param_spec_boolean("can-zoom-out", "Can Zoom Out", "Whether the view can be zoomed out further", TRUE, static_cast(G_PARAM_READABLE | G_PARAM_STATIC_STRINGS))); /** * LOKDocView::edit-changed: * @pDocView: the #LOKDocView on which the signal is emitted * @bEdit: the new edit value of the view */ doc_view_signals[EDIT_CHANGED] = g_signal_new("edit-changed", G_TYPE_FROM_CLASS (pGObjectClass), G_SIGNAL_RUN_FIRST, 0, NULL, NULL, g_cclosure_marshal_VOID__BOOLEAN, G_TYPE_NONE, 1, G_TYPE_BOOLEAN); /** * LOKDocView::command-changed: * @pDocView: the #LOKDocView on which the signal is emitted * @aCommand: the command that was changed */ doc_view_signals[COMMAND_CHANGED] = g_signal_new("command-changed", G_TYPE_FROM_CLASS(pGObjectClass), G_SIGNAL_RUN_FIRST, 0, NULL, NULL, g_cclosure_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING); /** * LOKDocView::search-not-found: * @pDocView: the #LOKDocView on which the signal is emitted * @aCommand: the string for which the search was not found. */ doc_view_signals[SEARCH_NOT_FOUND] = g_signal_new("search-not-found", G_TYPE_FROM_CLASS(pGObjectClass), G_SIGNAL_RUN_FIRST, 0, NULL, NULL, g_cclosure_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING); /** * LOKDocView::part-changed: * @pDocView: the #LOKDocView on which the signal is emitted * @aCommand: the part number which the view changed to */ doc_view_signals[PART_CHANGED] = g_signal_new("part-changed", G_TYPE_FROM_CLASS(pGObjectClass), G_SIGNAL_RUN_FIRST, 0, NULL, NULL, g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT); /** * LOKDocView::hyperlinked-clicked: * @pDocView: the #LOKDocView on which the signal is emitted * @aHyperlink: the URI which the application should handle */ doc_view_signals[HYPERLINK_CLICKED] = g_signal_new("hyperlink-clicked", G_TYPE_FROM_CLASS(pGObjectClass), G_SIGNAL_RUN_FIRST, 0, NULL, NULL, g_cclosure_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING); } /** * lok_doc_view_new: * @pPath: LibreOffice install path. * @cancellable: The cancellable object that you can use to cancel this * operation. * @error: The error that will be set if the object fails to initialize. * * Returns: (transfer none): The #LOKDocView widget instance. */ SAL_DLLPUBLIC_EXPORT GtkWidget* lok_doc_view_new (const gchar* pPath, GCancellable *cancellable, GError **error) { return GTK_WIDGET (g_initable_new (LOK_TYPE_DOC_VIEW, cancellable, error, "lopath", pPath, NULL)); } /** * lok_doc_view_open_document: * @pDocView: The #LOKDocView instance * @pPath: The path of the document that #LOKDocView widget should try to open * * Returns: %TRUE if the document is loaded succesfully, %FALSE otherwise */ SAL_DLLPUBLIC_EXPORT gboolean lok_doc_view_open_document (LOKDocView* pDocView, const gchar* pPath) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); if ( priv->m_pDocument ) { priv->m_pDocument->pClass->destroy( priv->m_pDocument ); priv->m_pDocument = 0; } priv->m_pOffice->pClass->registerCallback(priv->m_pOffice, globalCallbackWorker, pDocView); priv->m_pDocument = priv->m_pOffice->pClass->documentLoad( priv->m_pOffice, pPath ); if ( !priv->m_pDocument ) { // FIXME: should have a GError parameter and populate it. char *pError = priv->m_pOffice->pClass->getError( priv->m_pOffice ); fprintf( stderr, "Error opening document '%s'\n", pError ); return FALSE; } else { priv->m_pDocument->pClass->initializeForRendering(priv->m_pDocument); priv->m_pDocument->pClass->registerCallback(priv->m_pDocument, callbackWorker, pDocView); priv->m_pDocument->pClass->getDocumentSize(priv->m_pDocument, &priv->m_nDocumentWidthTwips, &priv->m_nDocumentHeightTwips); g_timeout_add(600, handleTimeout, pDocView); float zoom = priv->m_fZoom; long nDocumentWidthTwips = priv->m_nDocumentWidthTwips; long nDocumentHeightTwips = priv->m_nDocumentHeightTwips; long nDocumentWidthPixels = twipToPixel(nDocumentWidthTwips, zoom); long nDocumentHeightPixels = twipToPixel(nDocumentHeightTwips, zoom); // Total number of columns in this document. guint nColumns = ceil((double)nDocumentWidthPixels / nTileSizePixels); priv->m_aTileBuffer = TileBuffer(priv->m_pDocument, nColumns); gtk_widget_set_size_request(GTK_WIDGET(pDocView), nDocumentWidthPixels, nDocumentHeightPixels); gtk_widget_set_can_focus(GTK_WIDGET(pDocView), TRUE); gtk_widget_grab_focus(GTK_WIDGET(pDocView)); } return TRUE; } /** * lok_doc_view_get_document: * @pDocView: The #LOKDocView instance * * Returns: The #LibreOfficeKitDocument instance the widget is currently showing */ SAL_DLLPUBLIC_EXPORT LibreOfficeKitDocument* lok_doc_view_get_document (LOKDocView* pDocView) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); return priv->m_pDocument; } /** * lok_doc_view_set_zoom: * @pDocView: The #LOKDocView instance * @fZoom: The new zoom level that pDocView must set it into. * * Sets the new zoom level for the widget. */ SAL_DLLPUBLIC_EXPORT void lok_doc_view_set_zoom (LOKDocView* pDocView, float fZoom) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); priv->m_fZoom = fZoom; long nDocumentWidthPixels = twipToPixel(priv->m_nDocumentWidthTwips, fZoom); long nDocumentHeightPixels = twipToPixel(priv->m_nDocumentHeightTwips, fZoom); // Total number of columns in this document. guint nColumns = ceil((double)nDocumentWidthPixels / nTileSizePixels); priv->m_aTileBuffer = TileBuffer(priv->m_pDocument, nColumns); gtk_widget_set_size_request(GTK_WIDGET(pDocView), nDocumentWidthPixels, nDocumentHeightPixels); } /** * lok_doc_view_get_zoom: * @pDocView: The #LOKDocView instance * * Returns: The current zoom factor value in float for pDocView */ SAL_DLLPUBLIC_EXPORT float lok_doc_view_get_zoom (LOKDocView* pDocView) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); return priv->m_fZoom; } SAL_DLLPUBLIC_EXPORT int lok_doc_view_get_parts (LOKDocView* pDocView) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); return priv->m_pDocument->pClass->getParts( priv->m_pDocument ); } SAL_DLLPUBLIC_EXPORT int lok_doc_view_get_part (LOKDocView* pDocView) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); return priv->m_pDocument->pClass->getPart( priv->m_pDocument ); } SAL_DLLPUBLIC_EXPORT void lok_doc_view_set_part (LOKDocView* pDocView, int nPart) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); priv->m_pDocument->pClass->setPart( priv->m_pDocument, nPart ); } SAL_DLLPUBLIC_EXPORT char* lok_doc_view_get_part_name (LOKDocView* pDocView, int nPart) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); return priv->m_pDocument->pClass->getPartName( priv->m_pDocument, nPart ); } SAL_DLLPUBLIC_EXPORT void lok_doc_view_set_partmode(LOKDocView* pDocView, int nPartMode) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); priv->m_pDocument->pClass->setPartMode( priv->m_pDocument, nPartMode ); } /** * lok_doc_view_set_edit: * @pDocView: The #LOKDocView instance * @bEdit: %TRUE if the pDocView should go in edit mode, %FALSE otherwise * * Sets the edit-mode for pDocView */ SAL_DLLPUBLIC_EXPORT void lok_doc_view_set_edit(LOKDocView* pDocView, gboolean bEdit) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); gboolean bWasEdit = priv->m_bEdit; if (!priv->m_bEdit && bEdit) g_info("lok_doc_view_set_edit: entering edit mode"); else if (priv->m_bEdit && !bEdit) { g_info("lok_doc_view_set_edit: leaving edit mode"); priv->m_pDocument->pClass->resetSelection(priv->m_pDocument); } priv->m_bEdit = bEdit; g_signal_emit(pDocView, doc_view_signals[EDIT_CHANGED], 0, bWasEdit); gtk_widget_queue_draw(GTK_WIDGET(pDocView)); } /** * lok_doc_view_get_edit: * @pDocView: The #LOKDocView instance * * Returns: %TRUE if the given pDocView is in edit mode. */ SAL_DLLPUBLIC_EXPORT gboolean lok_doc_view_get_edit (LOKDocView* pDocView) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); return priv->m_bEdit; } /** * lok_doc_view_post_command: * @pDocView: the #LOKDocView instance * @pCommand: the command to issue to LO core * @pArguments: the arguments to the given command * * This methods forwards your command to LO core. */ SAL_DLLPUBLIC_EXPORT void lok_doc_view_post_command (LOKDocView* pDocView, const char* pCommand, const char* pArguments) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); priv->m_pDocument->pClass->postUnoCommand(priv->m_pDocument, pCommand, pArguments); } /** * lok_doc_view_pixel_to_twip: * @pDocView: The #LOKDocView instance * @fInput: The value in pixels to convert to twips * * Converts the value in pixels to twips according to zoom level. * * Returns: The corresponding value in twips */ SAL_DLLPUBLIC_EXPORT float lok_doc_view_pixel_to_twip (LOKDocView* pDocView, float fInput) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); return pixelToTwip(fInput, priv->m_fZoom); } /** * lok_doc_view_twip_to_pixel: * @pDocView: The #LOKDocView instance * @fInput: The value in twips to convert to pixels * * Converts the value in twips to pixels according to zoom level. * * Returns: The corresponding value in pixels */ SAL_DLLPUBLIC_EXPORT float lok_doc_view_twip_to_pixel (LOKDocView* pDocView, float fInput) { LOKDocViewPrivate *priv = static_cast(lok_doc_view_get_instance_private (pDocView)); return twipToPixel(fInput, priv->m_fZoom); } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */