* implemented zoom in/ out using the option key and plus or minus
* implemented moving the page while holding the secondary mouse button down * implemented zoom in/ out with primary mouse button (press SHIFT to zoom out) * show an appropriate cursor depending on the action when you press a mouse button git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24655 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Karsten Heimrich
parent
22611e781a
commit
55883aeef0
src/add-ons/print/drivers/preview
@ -1,5 +1,5 @@
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/*
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* Copyright 2002-2007, Haiku. All rights reserved.
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* Copyright 2002-2008, Haiku. All rights reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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@ -11,6 +11,7 @@
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#include <stdlib.h>
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#include <Application.h>
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#include <Debug.h>
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#include <String.h>
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#include "BeUtils.h"
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@ -61,10 +62,22 @@ const float kPreviewBottomMargin = 30;
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const float kPreviewLeftMargin = 10;
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const float kPreviewRightMargin = 30;
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const uint8 ZOOM_IN[] = { 16, 1, 6, 6, 0, 0, 15, 128, 48, 96, 32, 32, 66, 16, 66, 16,
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79, 144, 66, 16, 66, 16, 32, 32, 48, 112, 15, 184, 0, 28, 0, 14, 0, 6, 0, 0, 15,
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128, 63, 224, 127, 240, 127, 240, 255, 248, 255, 248, 255, 248, 255, 248, 255, 248,
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127, 248, 127, 248, 63, 252, 15, 254, 0, 31, 0, 15, 0, 7 };
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const uint8 ZOOM_OUT[] = { 16, 1, 6, 6, 0, 0, 15, 128, 48, 96, 32, 32, 64, 16, 64, 16,
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79, 144, 64, 16, 64, 16, 32, 32, 48, 112, 15, 184, 0, 28, 0, 14, 0, 6, 0, 0, 15,
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128, 63, 224, 127, 240, 127, 240, 255, 248, 255, 248, 255, 248, 255, 248, 255, 248,
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127, 248, 127, 248, 63, 252, 15, 254, 0, 31, 0, 15, 0, 7 };
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PreviewView::PreviewView(BFile* jobFile, BRect rect)
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: BView(rect, "PreviewView", B_FOLLOW_ALL, B_WILL_DRAW | B_FRAME_EVENTS)
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: BView(rect, "PreviewView", B_FOLLOW_ALL, B_WILL_DRAW | B_FRAME_EVENTS | B_NAVIGABLE)
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, fPage(0)
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, fZoom(0)
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, fTracking(false)
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, fInsideView(true)
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, fReader(jobFile)
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, fCachedPage(NULL)
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{
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@ -74,6 +87,122 @@ PreviewView::~PreviewView() {
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delete fCachedPage;
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}
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void
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PreviewView::Show()
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{
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BView::Show();
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be_app->SetCursor(ZOOM_IN);
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}
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void
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PreviewView::MouseDown(BPoint point)
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{
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MakeFocus(true);
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BMessage *message = Window()->CurrentMessage();
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int32 button;
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if (message && message->FindInt32("buttons", &button) == B_OK) {
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if (button == B_PRIMARY_MOUSE_BUTTON) {
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int32 modifier;
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if (message->FindInt32("modifiers", &modifier) == B_OK) {
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if (modifier & B_SHIFT_KEY)
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ZoomOut();
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else
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ZoomIn();
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}
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}
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if (button == B_SECONDARY_MOUSE_BUTTON) {
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fTracking = true;
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be_app->SetCursor(B_HAND_CURSOR);
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SetMouseEventMask(B_POINTER_EVENTS,
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B_LOCK_WINDOW_FOCUS | B_NO_POINTER_HISTORY);
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fScrollStart = Bounds().LeftTop() + ConvertToScreen(point);
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}
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}
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}
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void
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PreviewView::MouseMoved(BPoint point, uint32 transit, const BMessage* message)
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{
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if (fTracking) {
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uint32 button;
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GetMouse(&point, &button, false);
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point = fScrollStart - ConvertToScreen(point);
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float hMin, hMax;
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BScrollBar *hBar = ScrollBar(B_HORIZONTAL);
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hBar->GetRange(&hMin, &hMax);
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float vMin, vMax;
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BScrollBar *vBar = ScrollBar(B_VERTICAL);
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vBar->GetRange(&vMin, &vMax);
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if (point.x < 0.0) point.x = 0.0;
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if (point.y < 0.0) point.y = 0.0;
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if (point.x > hMax) point.x = hMax;
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if (point.y > vMax) point.y = vMax;
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ScrollTo(point);
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} else {
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switch (transit) {
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case B_ENTERED_VIEW: {
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fInsideView = true;
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be_app->SetCursor(ZOOM_IN);
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} break;
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case B_EXITED_VIEW: {
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fInsideView = false;
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be_app->SetCursor(B_HAND_CURSOR);
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} break;
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default: {
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if (modifiers() & B_SHIFT_KEY)
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be_app->SetCursor(ZOOM_OUT);
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else
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be_app->SetCursor(ZOOM_IN);
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} break;
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}
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}
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}
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void
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PreviewView::MouseUp(BPoint point)
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{
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(void)point;
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fTracking = false;
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fScrollStart.Set(0.0, 0.0);
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if (fInsideView && ((modifiers() & B_SHIFT_KEY) == 0))
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be_app->SetCursor(ZOOM_IN);
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}
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void
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PreviewView::KeyDown(const char* bytes, int32 numBytes)
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{
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MakeFocus(true);
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switch (bytes[0]) {
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case '-': {
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if (modifiers() & B_CONTROL_KEY)
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ZoomOut();
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} break;
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case '+' : {
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if (modifiers() & B_CONTROL_KEY)
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ZoomIn();
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} break;
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default: {
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BView::KeyDown(bytes, numBytes);
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} break;
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}
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}
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// returns 2 ^ fZoom
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float PreviewView::ZoomFactor() const {
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const int32 b = 4;
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@ -313,7 +442,8 @@ void PreviewView::FixScrollbars() {
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// Implementation of PreviewWindow
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PreviewWindow::PreviewWindow(BFile* jobFile)
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: BlockingWindow(BRect(20, 24, 400, 600), "Preview", B_DOCUMENT_WINDOW, 0)
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: BlockingWindow(BRect(20, 24, 400, 600), "Preview", B_DOCUMENT_WINDOW,
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B_ASYNCHRONOUS_CONTROLS)
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{
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const float kButtonDistance = 15;
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const float kPageTextDistance = 10;
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@ -407,6 +537,7 @@ PreviewWindow::PreviewWindow(BFile* jobFile)
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ResizeToPage();
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fPreview->FixScrollbars();
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UpdateControls();
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fPreview->MakeFocus(true);
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}
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}
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@ -487,6 +618,9 @@ void PreviewWindow::MessageReceived(BMessage* m) {
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fPreview->ZoomOut();
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ResizeToPage();
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break;
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case B_MODIFIERS_CHANGED:
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fPreview->MouseMoved(BPoint(), B_INSIDE_VIEW, m);
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break;
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default:
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inherited::MessageReceived(m); return;
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}
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@ -1,5 +1,5 @@
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/*
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* Copyright 2002-2007, Haiku. All rights reserved.
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* Copyright 2002-2008, Haiku. All rights reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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@ -31,6 +31,9 @@ public:
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class PreviewView : public BView {
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int32 fPage;
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int32 fZoom;
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bool fTracking;
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bool fInsideView;
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BPoint fScrollStart;
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PrintJobReader fReader;
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PreviewPage* fCachedPage;
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@ -41,6 +44,14 @@ class PreviewView : public BView {
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public:
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PreviewView(BFile* jobFile, BRect rect);
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~PreviewView();
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virtual void Show();
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virtual void MouseDown(BPoint point);
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virtual void MouseMoved(BPoint point, uint32 transit, const BMessage* message);
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virtual void MouseUp(BPoint point);
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virtual void KeyDown(const char* bytes, int32 numBytes);
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status_t InitCheck() const;
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BRect ViewRect() const;
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