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|
/* -*- 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 <sal/types.h>
#include <math.h>
#include <string.h>
#include <vector>
#include <string>
#include <gdk/gdkkeysyms.h>
#include <com/sun/star/awt/Key.hpp>
#define LOK_USE_UNSTABLE_API
#include <LibreOfficeKit/LibreOfficeKit.h>
#include <LibreOfficeKit/LibreOfficeKitEnums.h>
#include <LibreOfficeKit/LibreOfficeKitGtk.h>
#include <rsc/rsc-vcl-shared-types.hxx>
#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
namespace {
/// Sets rWidth and rHeight from a "width, height" string.
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);
}
}
/// Holds data used by LOKDocView only.
struct LOKDocView_Impl
{
LOKDocView* m_pDocView;
GtkWidget *m_pDrawingArea;
TileBuffer *m_pTileBuffer;
float m_fZoom;
LibreOfficeKit* m_pOffice;
LibreOfficeKitDocument* m_pDocument;
long m_nDocumentWidthTwips;
long m_nDocumentHeightTwips;
/// View or edit mode.
bool m_bEdit;
/// Position and size of the visible cursor.
GdkRectangle m_aVisibleCursor;
/// Cursor overlay is visible or hidden (for blinking).
bool m_bCursorOverlayVisible;
/// Cursor is visible or hidden (e.g. for graphic selection).
bool 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<GdkRectangle> 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;
bool 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.
bool 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.
bool 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.
bool 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.
bool m_bInDragGraphicHandles[8];
///@}
/// Callback data, allocated in lok_docview_callback_worker(), released in lok_docview_callback().
struct CallbackData
{
int m_nType;
std::string m_aPayload;
LOKDocView* m_pDocView;
CallbackData(int nType, const std::string& rPayload, LOKDocView* pDocView);
};
LOKDocView_Impl(LOKDocView* pDocView);
~LOKDocView_Impl();
/// Connected to the destroy signal of LOKDocView, deletes its LOKDocView_Impl.
static void destroy(LOKDocView* pDocView, gpointer pData);
/// Connected to the expose-event of the GtkDrawingArea
static void on_exposed(GtkWidget *widget, GdkEvent *event, gpointer user_data);
/// Receives a key press or release event.
void signalKey(GdkEventKey* pEvent);
/**
* The user drags the handle, which is below the cursor, but wants to move the
* cursor accordingly.
*
* @param pHandle the rectangle of the handle
* @param pEvent the motion event
* @param pPoint the computed point (output parameter)
*/
static void getDragPoint(GdkRectangle* pHandle, GdkEventButton* pEvent, GdkPoint* pPoint);
/// Receives a button press event.
static gboolean signalButton(GtkWidget* pEventBox, GdkEventButton* pEvent, LOKDocView* pDocView);
/// Implementation of button press event handler, invoked by signalButton().
gboolean signalButtonImpl(GdkEventButton* pEvent);
/// Receives a motion event.
static gboolean signalMotion(GtkWidget* pEventBox, GdkEventButton* pEvent, LOKDocView* pDocView);
/// Implementation of motion event handler, invoked by signalMotion().
gboolean signalMotionImpl(GdkEventButton* pEvent);
/// Receives an expose event.
static gboolean renderOverlay(GtkWidget* pWidget, GdkEventExpose* pEvent, LOKDocView* pDocView);
/// Implementation of expose event handler (renders cursor and selection overlay), invoked by renderOverlay().
gboolean renderOverlayImpl(GtkWidget* pEventBox);
/// Is rRectangle empty?
static bool isEmptyRectangle(const GdkRectangle& rRectangle);
/**
* Renders pHandle below an rCursor rectangle on pCairo.
* @param rRectangle output parameter, the rectangle that contains the rendered handle.
*/
void renderHandle(cairo_t* pCairo, const GdkRectangle& rCursor, cairo_surface_t* pHandle, GdkRectangle& rRectangle);
/// Renders pHandle around an rSelection rectangle on pCairo.
void renderGraphicHandle(cairo_t* pCairo, const GdkRectangle& rSelection, cairo_surface_t* pHandle);
/// Takes care of the blinking cursor.
static gboolean handleTimeout(gpointer pData);
/// Implementation of the timeout handler, invoked by handleTimeout().
gboolean handleTimeoutImpl();
/**
* Renders the document to a number of visible tiles.
*
* This method is invoked only manually, not when some Gtk signal is
* emitted.
*
* @param pPartial if 0, then the full visible document is rendered, otherwise only
* the tiles that intersect with pPartial.
*/
void renderDocument(GdkRectangle* pPartial);
/// Returns the GdkRectangle of a x,y,width,height string.
GdkRectangle payloadToRectangle(const char* pPayload);
/// Returns the GdkRectangles of a x1,y1,w1,h1;x2,y2,w2,h2;... string.
std::vector<GdkRectangle> payloadToRectangles(const char* pPayload);
/// Returns the string representation of a LibreOfficeKitCallbackType enumeration element.
static const char* callbackTypeToString(int nType);
/// Invoked on the main thread if callbackWorker() requests so.
static gboolean callback(gpointer pData);
/// Invoked on the main thread if globalCallbackWorker() requests so.
static gboolean globalCallback(gpointer pData);
/// Implementation of the callback handler, invoked by callback();
gboolean callbackImpl(CallbackData* pCallbackData);
/// Our LOK callback, runs on the LO thread.
static void callbackWorker(int nType, const char* pPayload, void* pData);
/// Implementation of the callback worder handler, invoked by callbackWorker().
void callbackWorkerImpl(int nType, const char* pPayload);
/// Our global LOK callback, runs on the LO thread.
static void globalCallbackWorker(int nType, const char* pPayload, void* pData);
/// Implementation of the global callback worder handler, invoked by globalCallbackWorker().
void globalCallbackWorkerImpl(int nType, const char* pPayload);
/// Command state (various buttons like bold are toggled or not) is changed.
void commandChanged(const std::string& rPayload);
/// Search did not find any matches.
void searchNotFound(const std::string& rPayload);
/// LOK decided to change parts, need to update UI.
void setPart(const std::string& rPayload);
/// Sets the tiles enclosed by rRectangle as invalid in m_pTileBuffer
void setTilesInvalid(const GdkRectangle& rRectangle);
};
namespace {
/// Implementation of the global callback handler, invoked by globalCallback();
gboolean globalCallbackImpl(LOKDocView_Impl::CallbackData* pCallback)
{
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;
}
}
LOKDocView_Impl::CallbackData::CallbackData(int nType, const std::string& rPayload, LOKDocView* pDocView)
: m_nType(nType),
m_aPayload(rPayload),
m_pDocView(pDocView)
{
}
LOKDocView_Impl::LOKDocView_Impl(LOKDocView* pDocView)
: m_pDocView(pDocView),
m_pDrawingArea(gtk_drawing_area_new()),
m_fZoom(1),
m_pOffice(0),
m_pDocument(0),
m_nDocumentWidthTwips(0),
m_nDocumentHeightTwips(0),
m_bEdit(false),
m_aVisibleCursor({0, 0, 0, 0}),
m_bCursorOverlayVisible(false),
m_bCursorVisible(true),
m_nLastButtonPressTime(0),
m_nLastButtonReleaseTime(0),
m_aTextSelectionStart({0, 0, 0, 0}),
m_aTextSelectionEnd({0, 0, 0, 0}),
m_aGraphicSelection({0, 0, 0, 0}),
m_bInDragGraphicSelection(false),
// Start/middle/end handle.
m_pHandleStart(0),
m_aHandleStartRect({0, 0, 0, 0}),
m_bInDragStartHandle(false),
m_pHandleMiddle(0),
m_aHandleMiddleRect({0, 0, 0, 0}),
m_bInDragMiddleHandle(false),
m_pHandleEnd(0),
m_aHandleEndRect({0, 0, 0, 0}),
m_bInDragEndHandle(false),
m_pGraphicHandle(0)
{
memset(&m_aGraphicHandleRects, 0, sizeof(m_aGraphicHandleRects));
memset(&m_bInDragGraphicHandles, 0, sizeof(m_bInDragGraphicHandles));
}
LOKDocView_Impl::~LOKDocView_Impl()
{
if (m_pDocument)
m_pDocument->pClass->destroy(m_pDocument);
m_pDocument = 0;
}
void LOKDocView_Impl::destroy(LOKDocView* pDocView, gpointer /*pData*/)
{
// We specifically need to destroy the document when closing in order to ensure
// that lock files etc. are cleaned up.
delete pDocView->m_pImpl;
}
void LOKDocView_Impl::on_exposed(GtkWidget* /*widget*/, GdkEvent* /*event*/, gpointer userdata)
{
LOKDocView *pDocView = LOK_DOCVIEW (userdata);
pDocView->m_pImpl->renderDocument(0);
}
void LOKDocView_Impl::signalKey(GdkEventKey* pEvent)
{
int nCharCode = 0;
int nKeyCode = 0;
if (!m_bEdit)
{
g_info("signalKey: not in edit mode, ignore");
return;
}
switch (pEvent->keyval)
{
case GDK_BackSpace:
nKeyCode = com::sun::star::awt::Key::BACKSPACE;
break;
case GDK_Return:
nKeyCode = com::sun::star::awt::Key::RETURN;
break;
case GDK_Escape:
nKeyCode = com::sun::star::awt::Key::ESCAPE;
break;
case GDK_Tab:
nKeyCode = com::sun::star::awt::Key::TAB;
break;
case GDK_Down:
nKeyCode = com::sun::star::awt::Key::DOWN;
break;
case GDK_Up:
nKeyCode = com::sun::star::awt::Key::UP;
break;
case GDK_Left:
nKeyCode = com::sun::star::awt::Key::LEFT;
break;
case GDK_Right:
nKeyCode = com::sun::star::awt::Key::RIGHT;
break;
default:
if (pEvent->keyval >= GDK_F1 && pEvent->keyval <= GDK_F26)
nKeyCode = com::sun::star::awt::Key::F1 + (pEvent->keyval - GDK_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)
m_pDocument->pClass->postKeyEvent(m_pDocument, LOK_KEYEVENT_KEYUP, nCharCode, nKeyCode);
else
m_pDocument->pClass->postKeyEvent(m_pDocument, LOK_KEYEVENT_KEYINPUT, nCharCode, nKeyCode);
}
gboolean LOKDocView_Impl::signalButton(GtkWidget* /*pEventBox*/, GdkEventButton* pEvent, LOKDocView* pDocView)
{
return pDocView->m_pImpl->signalButtonImpl(pEvent);
}
/// Receives a button press event.
gboolean LOKDocView_Impl::signalButtonImpl(GdkEventButton* pEvent)
{
g_info("LOKDocView_Impl::signalButton: %d, %d (in twips: %d, %d)", (int)pEvent->x, (int)pEvent->y, (int)pixelToTwip(pEvent->x, m_fZoom), (int)pixelToTwip(pEvent->y, m_fZoom));
if (pEvent->type == GDK_BUTTON_RELEASE)
{
if (m_bInDragStartHandle)
{
g_info("LOKDocView_Impl::signalButton: end of drag start handle");
m_bInDragStartHandle = false;
return FALSE;
}
else if (m_bInDragMiddleHandle)
{
g_info("LOKDocView_Impl::signalButton: end of drag middle handle");
m_bInDragMiddleHandle = false;
return FALSE;
}
else if (m_bInDragEndHandle)
{
g_info("LOKDocView_Impl::signalButton: end of drag end handle");
m_bInDragEndHandle = false;
return FALSE;
}
for (int i = 0; i < GRAPHIC_HANDLE_COUNT; ++i)
{
if (m_bInDragGraphicHandles[i])
{
g_info("LOKDocView_Impl::signalButton: end of drag graphic handle #%d", i);
m_bInDragGraphicHandles[i] = false;
m_pDocument->pClass->setGraphicSelection(m_pDocument, LOK_SETGRAPHICSELECTION_END, pixelToTwip(pEvent->x, m_fZoom), pixelToTwip(pEvent->y, m_fZoom));
return FALSE;
}
}
if (m_bInDragGraphicSelection)
{
g_info("LOKDocView_Impl::signalButton: end of drag graphic selection");
m_bInDragGraphicSelection = false;
m_pDocument->pClass->setGraphicSelection(m_pDocument, LOK_SETGRAPHICSELECTION_END, pixelToTwip(pEvent->x, m_fZoom), pixelToTwip(pEvent->y, m_fZoom));
return FALSE;
}
}
if (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, &m_aHandleStartRect, NULL))
{
g_info("LOKDocView_Impl::signalButton: start of drag start handle");
m_bInDragStartHandle = true;
return FALSE;
}
else if (gdk_rectangle_intersect(&aClick, &m_aHandleMiddleRect, NULL))
{
g_info("LOKDocView_Impl::signalButton: start of drag middle handle");
m_bInDragMiddleHandle = true;
return FALSE;
}
else if (gdk_rectangle_intersect(&aClick, &m_aHandleEndRect, NULL))
{
g_info("LOKDocView_Impl::signalButton: start of drag end handle");
m_bInDragEndHandle = true;
return FALSE;
}
for (int i = 0; i < GRAPHIC_HANDLE_COUNT; ++i)
{
if (gdk_rectangle_intersect(&aClick, &m_aGraphicHandleRects[i], NULL))
{
g_info("LOKDocView_Impl::signalButton: start of drag graphic handle #%d", i);
m_bInDragGraphicHandles[i] = true;
m_pDocument->pClass->setGraphicSelection(m_pDocument,
LOK_SETGRAPHICSELECTION_START,
pixelToTwip(m_aGraphicHandleRects[i].x + m_aGraphicHandleRects[i].width / 2, m_fZoom),
pixelToTwip(m_aGraphicHandleRects[i].y + m_aGraphicHandleRects[i].height / 2, m_fZoom));
return FALSE;
}
}
}
}
if (!m_bEdit)
lok_docview_set_edit(m_pDocView, TRUE);
switch (pEvent->type)
{
case GDK_BUTTON_PRESS:
{
int nCount = 1;
if ((pEvent->time - m_nLastButtonPressTime) < 250)
nCount++;
m_nLastButtonPressTime = pEvent->time;
m_pDocument->pClass->postMouseEvent(m_pDocument, LOK_MOUSEEVENT_MOUSEBUTTONDOWN, pixelToTwip(pEvent->x, m_fZoom), pixelToTwip(pEvent->y, m_fZoom), nCount);
break;
}
case GDK_BUTTON_RELEASE:
{
int nCount = 1;
if ((pEvent->time - m_nLastButtonReleaseTime) < 250)
nCount++;
m_nLastButtonReleaseTime = pEvent->time;
m_pDocument->pClass->postMouseEvent(m_pDocument, LOK_MOUSEEVENT_MOUSEBUTTONUP, pixelToTwip(pEvent->x, m_fZoom), pixelToTwip(pEvent->y, m_fZoom), nCount);
break;
}
default:
break;
}
return FALSE;
}
void LOKDocView_Impl::getDragPoint(GdkRectangle* pHandle, GdkEventButton* 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);
}
gboolean LOKDocView_Impl::signalMotion(GtkWidget* /*pEventBox*/, GdkEventButton* pEvent, LOKDocView* pDocView)
{
return pDocView->m_pImpl->signalMotionImpl(pEvent);
}
gboolean LOKDocView_Impl::signalMotionImpl(GdkEventButton* pEvent)
{
GdkPoint aPoint;
if (m_bInDragMiddleHandle)
{
g_info("lcl_signalMotion: dragging the middle handle");
LOKDocView_Impl::getDragPoint(&m_aHandleMiddleRect, pEvent, &aPoint);
m_pDocument->pClass->setTextSelection(m_pDocument, LOK_SETTEXTSELECTION_RESET, pixelToTwip(aPoint.x, m_fZoom), pixelToTwip(aPoint.y, m_fZoom));
return FALSE;
}
if (m_bInDragStartHandle)
{
g_info("lcl_signalMotion: dragging the start handle");
LOKDocView_Impl::getDragPoint(&m_aHandleStartRect, pEvent, &aPoint);
m_pDocument->pClass->setTextSelection(m_pDocument, LOK_SETTEXTSELECTION_START, pixelToTwip(aPoint.x, m_fZoom), pixelToTwip(aPoint.y, m_fZoom));
return FALSE;
}
if (m_bInDragEndHandle)
{
g_info("lcl_signalMotion: dragging the end handle");
LOKDocView_Impl::getDragPoint(&m_aHandleEndRect, pEvent, &aPoint);
m_pDocument->pClass->setTextSelection(m_pDocument, LOK_SETTEXTSELECTION_END, pixelToTwip(aPoint.x, m_fZoom), pixelToTwip(aPoint.y, m_fZoom));
return FALSE;
}
for (int i = 0; i < GRAPHIC_HANDLE_COUNT; ++i)
{
if (m_bInDragGraphicHandles[i])
{
g_info("lcl_signalMotion: dragging the graphic handle #%d", i);
return FALSE;
}
}
if (m_bInDragGraphicSelection)
{
g_info("lcl_signalMotion: dragging the graphic selection");
return FALSE;
}
GdkRectangle aMotionInTwipsInTwips;
aMotionInTwipsInTwips.x = pixelToTwip(pEvent->x, m_fZoom);
aMotionInTwipsInTwips.y = pixelToTwip(pEvent->y, m_fZoom);
aMotionInTwipsInTwips.width = 1;
aMotionInTwipsInTwips.height = 1;
if (gdk_rectangle_intersect(&aMotionInTwipsInTwips, &m_aGraphicSelection, 0))
{
g_info("lcl_signalMotion: start of drag graphic selection");
m_bInDragGraphicSelection = true;
m_pDocument->pClass->setGraphicSelection(m_pDocument, LOK_SETGRAPHICSELECTION_START, pixelToTwip(pEvent->x, m_fZoom), pixelToTwip(pEvent->y, m_fZoom));
return FALSE;
}
// Otherwise a mouse move, as on the desktop.
m_pDocument->pClass->postMouseEvent(m_pDocument, LOK_MOUSEEVENT_MOUSEMOVE, pixelToTwip(pEvent->x, m_fZoom), pixelToTwip(pEvent->y, m_fZoom), 1);
return FALSE;
}
gboolean LOKDocView_Impl::renderOverlay(GtkWidget* pEventBox, GdkEventExpose* /*pEvent*/, LOKDocView* pDocView)
{
return pDocView->m_pImpl->renderOverlayImpl(pEventBox);
}
gboolean LOKDocView_Impl::renderOverlayImpl(GtkWidget* pWidget)
{
#if GTK_CHECK_VERSION(2,14,0) // we need gtk_widget_get_window()
cairo_t* pCairo = gdk_cairo_create(gtk_widget_get_window(pWidget));
if (m_bEdit && m_bCursorVisible && m_bCursorOverlayVisible && !isEmptyRectangle(m_aVisibleCursor))
{
if (m_aVisibleCursor.width < 30)
// Set a minimal width if it would be 0.
m_aVisibleCursor.width = 30;
cairo_set_source_rgb(pCairo, 0, 0, 0);
cairo_rectangle(pCairo,
twipToPixel(m_aVisibleCursor.x, m_fZoom),
twipToPixel(m_aVisibleCursor.y, m_fZoom),
twipToPixel(m_aVisibleCursor.width, m_fZoom),
twipToPixel(m_aVisibleCursor.height, m_fZoom));
cairo_fill(pCairo);
}
if (m_bEdit && m_bCursorVisible && !isEmptyRectangle(m_aVisibleCursor) && m_aTextSelectionRectangles.empty())
{
// Have a cursor, but no selection: we need the middle handle.
if (!m_pHandleMiddle)
m_pHandleMiddle = cairo_image_surface_create_from_png(CURSOR_HANDLE_DIR "handle_middle.png");
renderHandle(pCairo, m_aVisibleCursor, m_pHandleMiddle, m_aHandleMiddleRect);
}
if (!m_aTextSelectionRectangles.empty())
{
for (GdkRectangle& rRectangle : 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, m_fZoom),
twipToPixel(rRectangle.y, m_fZoom),
twipToPixel(rRectangle.width, m_fZoom),
twipToPixel(rRectangle.height, m_fZoom));
cairo_fill(pCairo);
}
// Handles
if (!isEmptyRectangle(m_aTextSelectionStart))
{
// Have a start position: we need a start handle.
if (!m_pHandleStart)
m_pHandleStart = cairo_image_surface_create_from_png(CURSOR_HANDLE_DIR "handle_start.png");
renderHandle(pCairo, m_aTextSelectionStart, m_pHandleStart, m_aHandleStartRect);
}
if (!isEmptyRectangle(m_aTextSelectionEnd))
{
// Have a start position: we need an end handle.
if (!m_pHandleEnd)
m_pHandleEnd = cairo_image_surface_create_from_png(CURSOR_HANDLE_DIR "handle_end.png");
renderHandle(pCairo, m_aTextSelectionEnd, m_pHandleEnd, m_aHandleEndRect);
}
}
if (!isEmptyRectangle(m_aGraphicSelection))
{
if (!m_pGraphicHandle)
m_pGraphicHandle = cairo_image_surface_create_from_png(CURSOR_HANDLE_DIR "handle_graphic.png");
renderGraphicHandle(pCairo, m_aGraphicSelection, m_pGraphicHandle);
}
cairo_destroy(pCairo);
#endif
return FALSE;
}
bool LOKDocView_Impl::isEmptyRectangle(const GdkRectangle& rRectangle)
{
return rRectangle.x == 0 && rRectangle.y == 0 && rRectangle.width == 0 && rRectangle.height == 0;
}
void LOKDocView_Impl::setTilesInvalid(const GdkRectangle& rRectangle)
{
GdkRectangle aRectanglePixels;
GdkPoint aStart, aEnd;
aRectanglePixels.x = twipToPixel(rRectangle.x, m_fZoom);
aRectanglePixels.y = twipToPixel(rRectangle.y, m_fZoom);
aRectanglePixels.width = twipToPixel(rRectangle.width, m_fZoom);
aRectanglePixels.height = twipToPixel(rRectangle.height, 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++)
m_pTileBuffer->setInvalid(i, j);
}
void LOKDocView_Impl::renderHandle(cairo_t* pCairo, const GdkRectangle& rCursor, cairo_surface_t* pHandle, GdkRectangle& rRectangle)
{
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, 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, m_fZoom) + twipToPixel(rCursor.width, m_fZoom) / 2 - (nHandleWidth * fHandleScale) / 2;
aCursorBottom.y = twipToPixel(rCursor.y, m_fZoom) + twipToPixel(rCursor.height, 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.
void LOKDocView_Impl::renderGraphicHandle(cairo_t* pCairo, const GdkRectangle& rSelection, cairo_surface_t* pHandle)
{
int nHandleWidth, nHandleHeight;
GdkRectangle aSelection;
nHandleWidth = cairo_image_surface_get_width(pHandle);
nHandleHeight = cairo_image_surface_get_height(pHandle);
aSelection.x = twipToPixel(rSelection.x, m_fZoom);
aSelection.y = twipToPixel(rSelection.y, m_fZoom);
aSelection.width = twipToPixel(rSelection.width, m_fZoom);
aSelection.height = twipToPixel(rSelection.height, m_fZoom);
for (int i = 0; i < GRAPHIC_HANDLE_COUNT; ++i)
{
int x = aSelection.x, y = aSelection.y;
cairo_save(pCairo);
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;
m_aGraphicHandleRects[i].x = x;
m_aGraphicHandleRects[i].y = y;
m_aGraphicHandleRects[i].width = nHandleWidth;
m_aGraphicHandleRects[i].height = nHandleHeight;
cairo_translate(pCairo, x, y);
cairo_set_source_surface(pCairo, pHandle, 0, 0);
cairo_paint(pCairo);
cairo_restore(pCairo);
}
}
gboolean LOKDocView_Impl::handleTimeout(gpointer pData)
{
LOKDocView* pDocView = static_cast<LOKDocView*>(pData);
return pDocView->m_pImpl->handleTimeoutImpl();
}
gboolean LOKDocView_Impl::handleTimeoutImpl()
{
if (m_bEdit)
{
if (m_bCursorOverlayVisible)
m_bCursorOverlayVisible = false;
else
m_bCursorOverlayVisible = true;
gtk_widget_queue_draw(GTK_WIDGET(m_pDrawingArea));
}
return G_SOURCE_CONTINUE;
}
void LOKDocView_Impl::renderDocument(GdkRectangle* pPartial)
{
GdkRectangle visibleArea;
lok_docview_get_visarea (m_pDocView, &visibleArea);
long nDocumentWidthPixels = twipToPixel(m_nDocumentWidthTwips, m_fZoom);
long nDocumentHeightPixels = twipToPixel(m_nDocumentHeightTwips, m_fZoom);
// Total number of rows / columns in this document.
guint nRows = ceil((double)nDocumentHeightPixels / nTileSizePixels);
guint nColumns = ceil((double)nDocumentWidthPixels / nTileSizePixels);
cairo_t *pcairo = gdk_cairo_create(m_pDrawingArea->window);
// 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, m_fZoom) * nColumn;
aTileRectangleTwips.y = pixelToTwip(nTileSizePixels, m_fZoom) * nRow;
aTileRectangleTwips.width = pixelToTwip(aTileRectanglePixels.width, m_fZoom);
aTileRectangleTwips.height = pixelToTwip(aTileRectanglePixels.height, m_fZoom);
if (pPartial && !gdk_rectangle_intersect(pPartial, &aTileRectangleTwips, 0))
bPaint = false;
if (!gdk_rectangle_intersect(&visibleArea, &aTileRectangleTwips, 0))
bPaint = false;
if (bPaint)
{
//g_info("tile_buffer_get_tile (%d, %d)", nRow, nColumn);
Tile& currentTile = m_pTileBuffer->getTile(nRow, nColumn);
GdkPixbuf* pPixBuf = currentTile.getBuffer();
gdk_cairo_set_source_pixbuf (pcairo, pPixBuf,
twipToPixel(aTileRectangleTwips.x, m_fZoom),
twipToPixel(aTileRectangleTwips.y, m_fZoom));
cairo_paint(pcairo);
}
}
}
cairo_destroy(pcairo);
}
GdkRectangle LOKDocView_Impl::payloadToRectangle(const char* pPayload)
{
GdkRectangle aRet;
aRet.width = aRet.height = aRet.x = aRet.y = 0;
gchar** ppCoordinates = g_strsplit(pPayload, ", ", 4);
gchar** ppCoordinate = ppCoordinates;
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 > m_nDocumentWidthTwips)
aRet.width = m_nDocumentWidthTwips - aRet.x;
++ppCoordinate;
if (!*ppCoordinate)
return aRet;
aRet.height = atoi(*ppCoordinate);
if (aRet.y + aRet.height > m_nDocumentHeightTwips)
aRet.height = m_nDocumentHeightTwips - aRet.y;
g_strfreev(ppCoordinates);
return aRet;
}
std::vector<GdkRectangle> LOKDocView_Impl::payloadToRectangles(const char* pPayload)
{
std::vector<GdkRectangle> aRet;
gchar** ppRectangles = g_strsplit(pPayload, "; ", 0);
for (gchar** ppRectangle = ppRectangles; *ppRectangle; ++ppRectangle)
aRet.push_back(payloadToRectangle(*ppRectangle));
g_strfreev(ppRectangles);
return aRet;
}
/// Returns the string representation of a LibreOfficeKitCallbackType enumeration element.
const char* LOKDocView_Impl::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;
}
gboolean LOKDocView_Impl::callback(gpointer pData)
{
LOKDocView_Impl::CallbackData* pCallback = static_cast<LOKDocView_Impl::CallbackData*>(pData);
return pCallback->m_pDocView->m_pImpl->callbackImpl(pCallback);
}
gboolean LOKDocView_Impl::globalCallback(gpointer pData)
{
LOKDocView_Impl::CallbackData* pCallback = static_cast<LOKDocView_Impl::CallbackData*>(pData);
return globalCallbackImpl(pCallback);
}
gboolean LOKDocView_Impl::callbackImpl(CallbackData* pCallback)
{
switch (pCallback->m_nType)
{
case LOK_CALLBACK_INVALIDATE_TILES:
{
if (pCallback->m_aPayload != "EMPTY")
{
GdkRectangle aRectangle = LOKDocView_Impl::payloadToRectangle(pCallback->m_aPayload.c_str());
setTilesInvalid(aRectangle);
renderDocument(0);
}
else
{
m_pTileBuffer->resetAllTiles();
renderDocument(0);
}
}
break;
case LOK_CALLBACK_INVALIDATE_VISIBLE_CURSOR:
{
m_aVisibleCursor = LOKDocView_Impl::payloadToRectangle(pCallback->m_aPayload.c_str());
m_bCursorOverlayVisible = true;
setTilesInvalid(m_aVisibleCursor);
renderDocument(0);
}
break;
case LOK_CALLBACK_TEXT_SELECTION:
{
m_aTextSelectionRectangles = LOKDocView_Impl::payloadToRectangles(pCallback->m_aPayload.c_str());
// In case the selection is empty, then we get no LOK_CALLBACK_TEXT_SELECTION_START/END events.
if (m_aTextSelectionRectangles.empty())
{
memset(&m_aTextSelectionStart, 0, sizeof(m_aTextSelectionStart));
memset(&m_aHandleStartRect, 0, sizeof(m_aHandleStartRect));
memset(&m_aTextSelectionEnd, 0, sizeof(m_aTextSelectionEnd));
memset(&m_aHandleEndRect, 0, sizeof(m_aHandleEndRect));
}
else
memset(&m_aHandleMiddleRect, 0, sizeof(m_aHandleMiddleRect));
}
break;
case LOK_CALLBACK_TEXT_SELECTION_START:
{
m_aTextSelectionStart = LOKDocView_Impl::payloadToRectangle(pCallback->m_aPayload.c_str());
}
break;
case LOK_CALLBACK_TEXT_SELECTION_END:
{
m_aTextSelectionEnd = LOKDocView_Impl::payloadToRectangle(pCallback->m_aPayload.c_str());
}
break;
case LOK_CALLBACK_CURSOR_VISIBLE:
{
m_bCursorVisible = pCallback->m_aPayload == "true";
}
break;
case LOK_CALLBACK_GRAPHIC_SELECTION:
{
if (pCallback->m_aPayload != "EMPTY")
m_aGraphicSelection = LOKDocView_Impl::payloadToRectangle(pCallback->m_aPayload.c_str());
else
memset(&m_aGraphicSelection, 0, sizeof(m_aGraphicSelection));
gtk_widget_queue_draw(GTK_WIDGET(m_pDrawingArea));
}
break;
case LOK_CALLBACK_HYPERLINK_CLICKED:
{
GError* pError = NULL;
#if GTK_CHECK_VERSION(2,14,0)
gtk_show_uri(NULL, pCallback->m_aPayload.c_str(), GDK_CURRENT_TIME, &pError);
#endif
}
break;
case LOK_CALLBACK_STATE_CHANGED:
{
commandChanged(pCallback->m_aPayload);
}
break;
case LOK_CALLBACK_SEARCH_NOT_FOUND:
{
searchNotFound(pCallback->m_aPayload);
}
break;
case LOK_CALLBACK_DOCUMENT_SIZE_CHANGED:
{
payloadToSize(pCallback->m_aPayload.c_str(), m_nDocumentWidthTwips, m_nDocumentHeightTwips);
gtk_widget_set_size_request(m_pDrawingArea,
twipToPixel(m_nDocumentWidthTwips, m_fZoom),
twipToPixel(m_nDocumentHeightTwips, m_fZoom));
m_pTileBuffer->resetAllTiles();
}
break;
case LOK_CALLBACK_SET_PART:
{
setPart(pCallback->m_aPayload);
}
break;
default:
g_assert(false);
break;
}
delete pCallback;
return G_SOURCE_REMOVE;
}
void LOKDocView_Impl::callbackWorker(int nType, const char* pPayload, void* pData)
{
LOKDocView* pDocView = static_cast<LOKDocView*>(pData);
pDocView->m_pImpl->callbackWorkerImpl(nType, pPayload);
}
void LOKDocView_Impl::globalCallbackWorker(int nType, const char* pPayload, void* pData)
{
LOKDocView* pDocView = static_cast<LOKDocView*>(pData);
pDocView->m_pImpl->globalCallbackWorkerImpl(nType, pPayload);
}
void LOKDocView_Impl::callbackWorkerImpl(int nType, const char* pPayload)
{
LOKDocView_Impl::CallbackData* pCallback = new LOKDocView_Impl::CallbackData(nType, pPayload ? pPayload : "(nil)", m_pDocView);
g_info("lok_docview_callback_worker: %s, '%s'", LOKDocView_Impl::callbackTypeToString(nType), pPayload);
#if GTK_CHECK_VERSION(2,12,0)
gdk_threads_add_idle(LOKDocView_Impl::callback, pCallback);
#endif
}
void LOKDocView_Impl::globalCallbackWorkerImpl(int nType, const char* pPayload)
{
LOKDocView_Impl::CallbackData* pCallback = new LOKDocView_Impl::CallbackData(nType, pPayload ? pPayload : "(nil)", m_pDocView);
g_info("LOKDocView_Impl::globalCallbackWorkerImpl: %s, '%s'", LOKDocView_Impl::callbackTypeToString(nType), pPayload);
#if GTK_CHECK_VERSION(2,12,0)
gdk_threads_add_idle(LOKDocView_Impl::globalCallback, pCallback);
#endif
}
enum
{
EDIT_CHANGED,
COMMAND_CHANGED,
SEARCH_NOT_FOUND,
PART_CHANGED,
LAST_SIGNAL
};
static guint docview_signals[LAST_SIGNAL] = { 0 };
void LOKDocView_Impl::commandChanged(const std::string& rString)
{
g_signal_emit(m_pDocView, docview_signals[COMMAND_CHANGED], 0, rString.c_str());
}
void LOKDocView_Impl::searchNotFound(const std::string& rString)
{
g_signal_emit(m_pDocView, docview_signals[SEARCH_NOT_FOUND], 0, rString.c_str());
}
void LOKDocView_Impl::setPart(const std::string& rString)
{
g_signal_emit(m_pDocView, docview_signals[PART_CHANGED], 0, std::stoi(rString));
renderDocument(0);
}
static void lok_docview_class_init( gpointer ptr )
{
LOKDocViewClass* pClass = static_cast<LOKDocViewClass *>(ptr);
GObjectClass *gobject_class = G_OBJECT_CLASS(pClass);
pClass->edit_changed = NULL;
docview_signals[EDIT_CHANGED] =
g_signal_new("edit-changed",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (LOKDocViewClass, edit_changed),
NULL, NULL,
g_cclosure_marshal_VOID__BOOLEAN,
G_TYPE_NONE, 1,
G_TYPE_BOOLEAN);
pClass->command_changed = NULL;
docview_signals[COMMAND_CHANGED] =
g_signal_new("command-changed",
G_TYPE_FROM_CLASS(gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET(LOKDocViewClass, command_changed),
NULL, NULL,
g_cclosure_marshal_VOID__STRING,
G_TYPE_NONE, 1,
G_TYPE_STRING);
pClass->search_not_found = 0;
docview_signals[SEARCH_NOT_FOUND] =
g_signal_new("search-not-found",
G_TYPE_FROM_CLASS(gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET(LOKDocViewClass, search_not_found),
NULL, NULL,
g_cclosure_marshal_VOID__STRING,
G_TYPE_NONE, 1,
G_TYPE_STRING);
pClass->part_changed = 0;
docview_signals[PART_CHANGED] =
g_signal_new("part-changed",
G_TYPE_FROM_CLASS(gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET(LOKDocViewClass, part_changed),
NULL, NULL,
g_cclosure_marshal_VOID__INT,
G_TYPE_NONE, 1,
G_TYPE_INT);
}
static void lok_docview_init( GTypeInstance* pInstance, gpointer )
{
LOKDocView* pDocView = reinterpret_cast<LOKDocView *>(pInstance);
// Gtk ScrolledWindow is apparently not fully initialised yet, we specifically
// have to set the [hv]adjustment to prevent GTK assertions from firing, see
// https://bugzilla.gnome.org/show_bug.cgi?id=438114 for more info.
gtk_scrolled_window_set_hadjustment( GTK_SCROLLED_WINDOW( pDocView ), NULL );
gtk_scrolled_window_set_vadjustment( GTK_SCROLLED_WINDOW( pDocView ), NULL );
pDocView->m_pImpl = new LOKDocView_Impl(pDocView);
gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(pDocView),
pDocView->m_pImpl->m_pDrawingArea );
g_signal_connect(G_OBJECT(pDocView->m_pImpl->m_pDrawingArea),
"expose-event",
G_CALLBACK(LOKDocView_Impl::on_exposed), pDocView);
g_signal_connect(G_OBJECT(pDocView->m_pImpl->m_pDrawingArea),
"expose-event",
G_CALLBACK(LOKDocView_Impl::renderOverlay), pDocView);
gtk_widget_add_events(pDocView->m_pImpl->m_pDrawingArea,
GDK_BUTTON_PRESS_MASK
|GDK_BUTTON_RELEASE_MASK
|GDK_BUTTON_MOTION_MASK);
g_signal_connect(G_OBJECT(pDocView->m_pImpl->m_pDrawingArea),
"button-press-event",
G_CALLBACK(LOKDocView_Impl::signalButton), pDocView);
g_signal_connect(G_OBJECT(pDocView->m_pImpl->m_pDrawingArea),
"button-release-event",
G_CALLBACK(LOKDocView_Impl::signalButton), pDocView);
g_signal_connect(G_OBJECT(pDocView->m_pImpl->m_pDrawingArea),
"motion-notify-event",
G_CALLBACK(LOKDocView_Impl::signalMotion), pDocView);
g_signal_connect(G_OBJECT(pDocView), "destroy", G_CALLBACK(LOKDocView_Impl::destroy), 0);
}
SAL_DLLPUBLIC_EXPORT guint lok_docview_get_type()
{
static guint lok_docview_type = 0;
if (!lok_docview_type)
{
char pName[] = "LokDocView";
GtkTypeInfo lok_docview_info =
{
pName,
sizeof( LOKDocView ),
sizeof( LOKDocViewClass ),
lok_docview_class_init,
lok_docview_init,
NULL,
NULL,
nullptr
};
lok_docview_type = gtk_type_unique( gtk_scrolled_window_get_type(), &lok_docview_info );
}
return lok_docview_type;
}
SAL_DLLPUBLIC_EXPORT GtkWidget* lok_docview_new( LibreOfficeKit* pOffice )
{
LOKDocView* pDocView = LOK_DOCVIEW(gtk_type_new(lok_docview_get_type()));
pDocView->m_pImpl->m_pOffice = pOffice;
return GTK_WIDGET( pDocView );
}
SAL_DLLPUBLIC_EXPORT gboolean lok_docview_open_document( LOKDocView* pDocView, char* pPath )
{
if ( pDocView->m_pImpl->m_pDocument )
{
pDocView->m_pImpl->m_pDocument->pClass->destroy( pDocView->m_pImpl->m_pDocument );
pDocView->m_pImpl->m_pDocument = 0;
}
pDocView->m_pImpl->m_pOffice->pClass->registerCallback(pDocView->m_pImpl->m_pOffice, &LOKDocView_Impl::globalCallbackWorker, pDocView);
pDocView->m_pImpl->m_pDocument = pDocView->m_pImpl->m_pOffice->pClass->documentLoad( pDocView->m_pImpl->m_pOffice,
pPath );
if ( !pDocView->m_pImpl->m_pDocument )
{
// FIXME: should have a GError parameter and populate it.
char *pError = pDocView->m_pImpl->m_pOffice->pClass->getError( pDocView->m_pImpl->m_pOffice );
fprintf( stderr, "Error opening document '%s'\n", pError );
return FALSE;
}
else
{
pDocView->m_pImpl->m_pDocument->pClass->initializeForRendering(pDocView->m_pImpl->m_pDocument);
pDocView->m_pImpl->m_pDocument->pClass->registerCallback(pDocView->m_pImpl->m_pDocument, &LOKDocView_Impl::callbackWorker, pDocView);
pDocView->m_pImpl->m_pDocument->pClass->getDocumentSize(pDocView->m_pImpl->m_pDocument, &pDocView->m_pImpl->m_nDocumentWidthTwips, &pDocView->m_pImpl->m_nDocumentHeightTwips);
g_timeout_add(600, &LOKDocView_Impl::handleTimeout, pDocView);
float zoom = pDocView->m_pImpl->m_fZoom;
long nDocumentWidthTwips = pDocView->m_pImpl->m_nDocumentWidthTwips;
long nDocumentHeightTwips = pDocView->m_pImpl->m_nDocumentHeightTwips;
long nDocumentWidthPixels = twipToPixel(nDocumentWidthTwips, zoom);
long nDocumentHeightPixels = twipToPixel(nDocumentHeightTwips, zoom);
// Total number of rows / columns in this document.
guint nRows = ceil((double)nDocumentHeightPixels / nTileSizePixels);
guint nColumns = ceil((double)nDocumentWidthPixels / nTileSizePixels);
pDocView->m_pImpl->m_pTileBuffer = new TileBuffer(pDocView->m_pImpl->m_pDocument,
nTileSizePixels,
nRows,
nColumns);
gtk_widget_set_size_request(pDocView->m_pImpl->m_pDrawingArea,
nDocumentWidthPixels,
nDocumentHeightPixels);
pDocView->m_pImpl->renderDocument(0);
}
return TRUE;
}
SAL_DLLPUBLIC_EXPORT LibreOfficeKitDocument* lok_docview_get_document(LOKDocView* pDocView)
{
return pDocView->m_pImpl->m_pDocument;
}
SAL_DLLPUBLIC_EXPORT void lok_docview_set_zoom ( LOKDocView* pDocView, float fZoom )
{
pDocView->m_pImpl->m_fZoom = fZoom;
long nDocumentWidthPixels = twipToPixel(pDocView->m_pImpl->m_nDocumentWidthTwips, fZoom);
long nDocumentHeightPixels = twipToPixel(pDocView->m_pImpl->m_nDocumentHeightTwips, fZoom);
// Total number of rows / columns in this document.
guint nRows = ceil((double)nDocumentHeightPixels / nTileSizePixels);
guint nColumns = ceil((double)nDocumentWidthPixels / nTileSizePixels);
pDocView->m_pImpl->m_pTileBuffer->setZoom(fZoom, nRows, nColumns);
gtk_widget_set_size_request(pDocView->m_pImpl->m_pDrawingArea,
nDocumentWidthPixels,
nDocumentHeightPixels);
if ( pDocView->m_pImpl->m_pDocument )
pDocView->m_pImpl->renderDocument(0);
}
SAL_DLLPUBLIC_EXPORT float lok_docview_get_zoom ( LOKDocView* pDocView )
{
return pDocView->m_pImpl->m_fZoom;
}
SAL_DLLPUBLIC_EXPORT int lok_docview_get_parts( LOKDocView* pDocView )
{
return pDocView->m_pImpl->m_pDocument->pClass->getParts( pDocView->m_pImpl->m_pDocument );
}
SAL_DLLPUBLIC_EXPORT int lok_docview_get_part( LOKDocView* pDocView )
{
return pDocView->m_pImpl->m_pDocument->pClass->getPart( pDocView->m_pImpl->m_pDocument );
}
SAL_DLLPUBLIC_EXPORT void lok_docview_set_part( LOKDocView* pDocView, int nPart)
{
pDocView->m_pImpl->m_pDocument->pClass->setPart( pDocView->m_pImpl->m_pDocument, nPart );
}
SAL_DLLPUBLIC_EXPORT char* lok_docview_get_part_name( LOKDocView* pDocView, int nPart )
{
return pDocView->m_pImpl->m_pDocument->pClass->getPartName( pDocView->m_pImpl->m_pDocument, nPart );
}
SAL_DLLPUBLIC_EXPORT void lok_docview_set_partmode( LOKDocView* pDocView,
int nPartMode )
{
pDocView->m_pImpl->m_pDocument->pClass->setPartMode( pDocView->m_pImpl->m_pDocument, nPartMode );
pDocView->m_pImpl->renderDocument(0);
}
SAL_DLLPUBLIC_EXPORT void lok_docview_set_edit( LOKDocView* pDocView,
gboolean bEdit )
{
gboolean bWasEdit = pDocView->m_pImpl->m_bEdit;
if (!pDocView->m_pImpl->m_bEdit && bEdit)
g_info("lok_docview_set_edit: entering edit mode");
else if (pDocView->m_pImpl->m_bEdit && !bEdit)
{
g_info("lok_docview_set_edit: leaving edit mode");
pDocView->m_pImpl->m_pDocument->pClass->resetSelection(pDocView->m_pImpl->m_pDocument);
}
pDocView->m_pImpl->m_bEdit = bEdit;
g_signal_emit(pDocView, docview_signals[EDIT_CHANGED], 0, bWasEdit);
gtk_widget_queue_draw(GTK_WIDGET(pDocView->m_pImpl->m_pDrawingArea));
}
SAL_DLLPUBLIC_EXPORT gboolean lok_docview_get_edit(LOKDocView* pDocView)
{
return pDocView->m_pImpl->m_bEdit;
}
SAL_DLLPUBLIC_EXPORT void lok_docview_post_command(LOKDocView* pDocView, const char* pCommand, const char* pArguments)
{
pDocView->m_pImpl->m_pDocument->pClass->postUnoCommand(pDocView->m_pImpl->m_pDocument, pCommand, pArguments);
}
SAL_DLLPUBLIC_EXPORT void lok_docview_post_key(GtkWidget* /*pWidget*/, GdkEventKey* pEvent, gpointer pData)
{
LOKDocView* pDocView = static_cast<LOKDocView *>(pData);
pDocView->m_pImpl->signalKey(pEvent);
}
SAL_DLLPUBLIC_EXPORT void lok_docview_get_visarea(LOKDocView* pThis, GdkRectangle* pArea)
{
float zoom = pThis->m_pImpl->m_fZoom;
GtkAdjustment* pHAdjustment = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(pThis));
pArea->x = pixelToTwip(gtk_adjustment_get_value(pHAdjustment),zoom);
pArea->width = pixelToTwip(gtk_adjustment_get_page_size(pHAdjustment), zoom);
GtkAdjustment* pVAdjustment = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(pThis));
pArea->y = pixelToTwip(gtk_adjustment_get_value(pVAdjustment), zoom);
pArea->height = pixelToTwip(gtk_adjustment_get_page_size(pVAdjustment), zoom);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|